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1. 1T′-transition metal dichalcogenide monolayers stabilized on 4H-Au nanowires for ultrasensitive SERS detection

Author

Li, Zijian, Zhai, Li, Zhang, Qinghua, Zhai, Wei, Li, Pai, Chen, Bo, Chen, Changsheng, Yao, Yao, Ge, Yiyao, Yang, Hua, Qiao, Panzhe, Kang, Jianing, Shi, Zhenyu, Zhang, An, Wang, Hongyi, Liang, Jinzhe, Liu, Jiawei, Guan, Zhiqiang, Liao, Lingwen, Neacșu, Vlad Andrei, Ma, Chen, Chen, Ye, Zhu, Ye, Lee, Chun-Sing, Ma, Lu, Du, Yonghua, Gu, Lin, Li, Jian-Feng, Tian, Zhong-Qun, Ding, Feng, and Zhang, Hua

Published
2024
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4. Boosting the reaction kinetics in aprotic lithium-carbon dioxide batteries with unconventional phase metal nanomaterials

Author

Zhou, Jingwen, Wang, Tianshuai, Chen, Lin, Liao, Lingwen, Wang, Yunhao, Xi, Shibo, Chen, Bo, Lin, Ting, Zhang, Qinghua, Ye, Chenliang, Zhou, Xichen, Guan, Zhiqiang, Zhai, Li, He, Zhen, Wang, Gang, Wang, Juan, Yu, Jinli, Ma, Yangbo, Lu, Pengyi, Xiong, Yuecheng, Lu, Shiyao, Chen, Ye, Wang, Bin, Lee, Chun-Sing, Cheng, Jianli, Gu, Lin, Zhao, Tianshou, and Fan, Zhanxi

Published
2022

6. Crystal‐Phase‐Selective Etching of Heterophase Au Nanostructures.

Author

Saleem, Faisal, Liu, Guangyao, Liu, Guigao, Chen, Bo, Yun, Qinbai, Ge, Yiyao, Zhang, An, Wang, Xixi, Zhou, Xichen, Wang, Gang, Liao, Lingwen, He, Zhen, Li, Lujiang, and Zhang, Hua

Subjects
HYDROGEN evolution reactions, PRECIOUS metals, SURFACE energy, NANOSTRUCTURES, ETCHING
Abstract

Selective oxidative etching is one of the most effective ways to prepare hollow nanostructures and nanocrystals with specific exposed facets. The mechanism of selective etching in noble metal nanostructures mainly relies on the different reactivity of metal components and the distinct surface energy of multimetallic nanostructures. Recently, phase engineering of nanomaterials (PEN) offers new opportunities for the preparation of unique heterostructures, including heterophase nanostructures. However, the synthesis of hollow multimetallic nanostructures based on crystal‐phase‐selective etching has been rarely studied. Here, a crystal‐phase‐selective etching method is reported to selectively etch the unconventional 4H and 2H phases in the heterophase Au nanostructures. Due to the coating of Pt‐based alloy and the crystal‐phase‐selective etching of 4H‐Au in 4H/face‐centered cubic (fcc) Au nanowires, the well‐defined ladder‐like Au@PtAg nanoframes are prepared. In addition, the 2H‐Au in the fcc‐2H‐fcc Au nanorods and 2H/fcc Au nanosheets can also be selectively etched using the same method. As a proof‐of‐concept application, the ladder‐like Au@PtAg nanoframes are used for the electrocatalytic hydrogen evolution reaction (HER) in acidic media, showing excellent performance that is comparable to the commercial Pt/C catalyst. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Cover Picture: Atomically Precise Nanometer‐Sized Pt Catalysts with an Additional Photothermy Functionality

Author

Wang, Runguo, primary, Chen, Dong, additional, Fang, Liang, additional, Fan, Wentao, additional, You, Qing, additional, Bian, Guoqing, additional, Zhou, Yue, additional, Gu, Wanmiao, additional, Wang, Chengming, additional, Bai, Licheng, additional, Li, Jin, additional, Deng, Haiteng, additional, Liao, Lingwen, additional, Yang, Jun, additional, and Wu, Zhikun, additional

Published
2024
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8. Concomitant Near‐Infrared Photothermy and Photoluminescence of Rod‐Shaped Au52(PET)32 and Au66(PET)38 Synthesized Concurrently.

Author

Gu, Wanmiao, Zhou, Yue, Wang, Wenying, You, Qing, Fan, Wentao, Zhao, Yan, Bian, Guoqing, Wang, Runguo, Fang, Liang, Yan, Nan, Xia, Nan, Liao, Lingwen, and Wu, Zhikun

Abstract

Gold nanoclusters exhibiting concomitant photothermy (PT) and photoluminescence (PL) under near‐infrared (NIR) light irradiation are rarely reported, and some fundamental issues remain unresolved for such materials. Herein, we concurrently synthesized two novel rod‐shaped Au nanoclusters, Au52(PET)32 and Au66(PET)38 (PET = 2‐phenylethanethiolate), and precisely revealed that their kernels were 4 × 4 × 6 and 5 × 4 × 6 face‐centered cubic (fcc) structures, respectively, based on the numbers of Au layers in the [100], [010], and [001] directions. Following the structural growth mode from Au52(PET)32 to Au66(PET)38, we predicted six more novel nanoclusters. The concurrent synthesis provides rational comparison of the two nanoclusters on the stability, absorption, emission and photothermy, and reveals the aspect ratio‐related properties. An interesting finding is that the two nanoclusters exhibit concomitant PT and PL under 785 nm light irradiation, and the PT and PL are in balance, which was explained by the qualitative evaluation of the radiative and non‐radiative rates. The ligand effects on PT and PL were also investigated. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Atomically Precise Nanometer‐Sized Pt Catalysts with an Additional Photothermy Functionality.

Author

Wang, Runguo, Chen, Dong, Fang, Liang, Fan, Wentao, You, Qing, Bian, Guoqing, Zhou, Yue, Gu, Wanmiao, Wang, Chengming, Bai, Licheng, Li, Jin, Deng, Haiteng, Liao, Lingwen, Yang, Jun, and Wu, Zhikun

Subjects
CATALYSTS, OXYGEN reduction, PHOTOTHERMAL conversion, DENSITY functional theory, MASS spectrometry, X-ray diffraction
Abstract

Atomically precise ~1‐nm Pt nanoparticles (nanoclusters, NCs) with ambient stability are important in fundamental research and exhibit diverse practical applications (catalysis, biomedicine, etc.). However, synthesizing such materials is challenging. Herein, by employing the mixture ligand protecting strategy, we successfully synthesized the largest organic‐ligand‐protected (~1‐nm) Pt23 NCs precisely characterized with mass spectrometry and single‐crystal X‐ray diffraction analyses. Interestingly, natural population analysis and Bader charge calculation indicate an alternate, varying charge ‐layer distribution in the sandwich‐like Pt23 NC kernel. Pt23 NCs can catalyze the oxygen reduction reaction under acidic conditions without requiring calcination and other treatments, and the resulting specific and mass activities without further treatment are sevenfold and eightfold higher than those observed for commercial Pt/C catalysts, respectively. Density functional theory and d‐band center calculations interpret the high activity. Furthermore, Pt23 NCs exhibit a photothermal conversion efficiency of 68.4 % under 532‐nm laser irradiation and can be used at least for six cycles, thus demonstrating great potential for practical applications. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Synthesis of 2H/fcc‐Heterophase AuCu Nanostructures for Highly Efficient Electrochemical CO2 Reduction at Industrial Current Densities

Author

Zhou, Xichen, primary, Zhang, An, additional, Chen, Bo, additional, Zhu, Shangqian, additional, Cui, Yu, additional, Bai, Licheng, additional, Yu, Jinli, additional, Ge, Yiyao, additional, Yun, Qinbai, additional, Li, Lujiang, additional, Huang, Biao, additional, Liao, Lingwen, additional, Fu, Jiaju, additional, Wa, Qingbo, additional, Wang, Gang, additional, Huang, Zhiqi, additional, Zheng, Long, additional, Ren, Yi, additional, Li, Siyuan, additional, Liu, Guangyao, additional, Zhai, Li, additional, Li, Zijian, additional, Liu, Jiawei, additional, Chen, Ye, additional, Ma, Lu, additional, Ling, Chongyi, additional, Wang, Jinlan, additional, Fan, Zhanxi, additional, Du, Yonghua, additional, Shao, Minhua, additional, and Zhang, Hua, additional

Published
2023
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16. Synthesis of 2H/fcc-Heterophase AuCu Nanostructures for Highly Efficient Electrochemical CO2 Reduction at Industrial Current Densities

Author

Zhou, Xinchen, Zhang, An, Chen, Bo, Zhu, Shangqian, Cui, Yu, Bai, Licheng, Yu, Jinli, Ge, Yiyao, Yun, Qinbai, Li, Lujiang, Huang, Biao, Liao, Lingwen, Fu, Jiaju, Wa, Qingbo, Wang, Gang, Huang, Zhiqi, Zheng, Long, Ren, Yi, Li, Siyuan, Liu, Guangyao, Zhai, Li, Li, Zijian, Liu, Jiawei, Chen, Ye, Ma, Lu, Ling, Chongyi, Wang, Jinlan, Fan, Zhanxi, Du, Yonghua, Shao, Minhua, Zhang, Hua, Zhou, Xinchen, Zhang, An, Chen, Bo, Zhu, Shangqian, Cui, Yu, Bai, Licheng, Yu, Jinli, Ge, Yiyao, Yun, Qinbai, Li, Lujiang, Huang, Biao, Liao, Lingwen, Fu, Jiaju, Wa, Qingbo, Wang, Gang, Huang, Zhiqi, Zheng, Long, Ren, Yi, Li, Siyuan, Liu, Guangyao, Zhai, Li, Li, Zijian, Liu, Jiawei, Chen, Ye, Ma, Lu, Ling, Chongyi, Wang, Jinlan, Fan, Zhanxi, Du, Yonghua, Shao, Minhua, and Zhang, Hua

Abstract

Structural engineering of nanomaterials offers a promising way for developing high-performance catalysts toward catalysis. However, the delicate modulation of thermodynamically unfavorable nanostructures with unconventional phases still remains a challenge. Here, the synthesis of hierarchical AuCu nanostructures is reported with hexagonal close-packed (2H-type)/face-centered cubic (fcc) heterophase, high-index facets, planar defects (e.g., stacking faults, twin boundaries, and grain boundaries), and tunable Cu content. The obtained 2H/fcc Au99Cu1 hierarchical nanosheets exhibit excellent performance for the electrocatalytic CO2 reduction to produce CO, outperforming the 2H/fcc Au91Cu9 and fcc Au99Cu1. The experimental results, especially those obtained by in-situ differential electrochemical mass spectroscopy and attenuated total reflection Fourier-transform infrared spectroscopy, suggest that the enhanced catalytic performance of 2H/fcc Au99Cu1 arises from the unconventional 2H/fcc heterophase, high-index facets, planar defects, and appropriate alloying of Cu. Impressively, the 2H/fcc Au99Cu1 shows CO Faradaic efficiencies of 96.6% and 92.6% at industrial current densities of 300 and 500 mA cm−2, respectively, as well as good durability, placing it among the best CO2 reduction electrocatalysts for CO production. The atomically structural regulation based on phase engineering of nanomaterials (PEN) provides an avenue for the rational design and preparation of high-performance electrocatalysts for various catalytic applications. © 2023 Wiley-VCH GmbH.

Published
2023

17. Pd8 Nanocluster with Nonmetal‐to‐Metal‐ Ring Coordination and Promising Photothermal Conversion Efficiency.

Author

You, Qing, Jiang, Xue‐Lian, Fan, Wentao, Cui, Yun‐Shu, Zhao, Yan, Zhuang, Shengli, Gu, Wanmiao, Liao, Lingwen, Xu, Cong‐Qiao, Li, Jun, and Wu, Zhikun

Subjects
PHOTOTHERMAL conversion, ELECTROSPRAY ionization mass spectrometry, X-ray crystallography, ELECTRON transitions
Abstract

Constructing ambient‐stable, single‐atom‐layered metal‐based materials with atomic precision and understanding their underlying stability mechanisms are challenging. Here, stable single‐atom‐layered nanoclusters of Pd were synthesized and precisely characterized through electrospray ionization mass spectrometry and single‐crystal X‐ray crystallography. A pseudo‐pentalene‐like Pd8 unit was found in the nanocluster, interacting with two syn PPh units through nonmetal‐to‐metal ‐ring coordination. The unexpected coordination, which is distinctly different from the typical organoring‐to‐metal coordination in half‐sandwich‐type organometallic compounds, contributes to the ambient stability of the as‐obtained single‐atom‐layered nanocluster as revealed through theoretical and experimental analyses. Furthermore, quantum chemical calculations revealed dominant electron transition along the horizontal x‐direction of the Pd8 plane, indicating high photothermal conversion efficiency (PCE) of the nanocluster, which was verified by the experimental PCE of 73.3 %. Therefore, this study unveils the birth of a novel type of compound and the finding of the unusual nonmetal‐to‐metal ‐ring coordination and has important implications for future syntheses, structures, properties, and structure–property correlations of single‐atom‐layered metal‐based materials. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Lattice Compression Revealed at the ≈1 nm Scale.

Author

Xu, Ziwei, Dong, Hongwei, Gu, Wanmiao, He, Zhen, Jin, Fengming, Wang, Chengming, You, Qing, Li, Jin, Deng, Haiteng, Liao, Lingwen, Chen, Dong, Yang, Jun, and Wu, Zhikun

Subjects
X-ray crystallography, CATALYTIC activity, HETEROGENEOUS catalysis, CARBON dioxide, NANOCRYSTALS
Abstract

Lattice tuning at the ≈1 nm scale is fascinating and challenging; for instance, lattice compression at such a minuscule scale has not been observed. The lattice compression might also bring about some unusual properties, which waits to be verified. Through ligand induction, we herein achieve the lattice compression in a ≈1 nm gold nanocluster for the first time, as detected by the single‐crystal X‐ray crystallography. In a freshly synthesized Au52(CHT)28 (CHT=S‐c−C6H11) nanocluster, the lattice distance of the (110) facet is found to be compressed from 4.51 to 3.58 Å at the near end. However, the lattice distances of the (111) and (100) facets show no change in different positions. The lattice‐compressed nanocluster exhibits superior electrocatalytic activity for the CO2 reduction reaction (CO2RR) compared to that exhibited by the same‐sized Au52(TBBT)32 (TBBT=4‐tert‐butyl‐benzenethiolate) nanocluster and larger Au nanocrystals without lattice variation, indicating that lattice tuning is an efficient method for tailoring the properties of metal nanoclusters. Further theoretical calculations explain the high CO2RR performance of the lattice‐compressed Au52(CHT)28 and provide a correlation between its structure and catalytic activity. [ABSTRACT FROM AUTHOR]

Published
2023
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22. 2D/0D hierarchical heterostructures prepared via facet‐selective epitaxial growth of triangular Rh nanoplates on 2H‐Pd nanoparticles

Author

Wang, Xixi, primary, Ge, Yiyao, additional, Zhang, Qinghua, additional, Lin, Ting, additional, Chen, Bo, additional, Li, Lujiang, additional, Huang, Zhiqi, additional, Yun, Qinbai, additional, Zhou, Xichen, additional, Shi, Zhenyu, additional, Liu, Guanghua, additional, Liu, Jiawei, additional, Wang, Gang, additional, Zheng, Long, additional, Huang, Biao, additional, Liao, Lingwen, additional, Yao, Yao, additional, Zhai, Li, additional, Lu, Shiyao, additional, Luo, Qinxin, additional, Chen, Ye, additional, Gu, Lin, additional, and Zhang, Hua, additional

Published
2022
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23. Single-Atom-Kernelled Nanocluster Catalyst

Author

Zhuang, Shengli, primary, Chen, Dong, additional, Fan, Wentao, additional, Yuan, Jinyun, additional, Liao, Lingwen, additional, Zhao, Yan, additional, Li, Jin, additional, Deng, Haiteng, additional, Yang, Jun, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2022
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24. Preparation of Au@Pd Core-Shell Nanorods with fcc-2H- fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation

Author

Zhou, Xichen, Ma, Yongbo, Ge, Yiyao, Zhu, Shangqian, Cui, Yu, Chen, Bo, Liao, Lingwen, Yun, Qinbai, He, Zhen, Long, Huiwu, Li, Lujiang, Huang, Biao, Luo, Qinxin, Zhai, Li, Wang, Xixi, Bai, Licheng, Wang, Gang, Guan, Zhiqiang, Chen, Ye, Lee, Chun-Sing, Wang, Jinlan, Ling, Chongyi, Shao, Minhua, Fan, Zhaunxi, Zhang, Hua, Zhou, Xichen, Ma, Yongbo, Ge, Yiyao, Zhu, Shangqian, Cui, Yu, Chen, Bo, Liao, Lingwen, Yun, Qinbai, He, Zhen, Long, Huiwu, Li, Lujiang, Huang, Biao, Luo, Qinxin, Zhai, Li, Wang, Xixi, Bai, Licheng, Wang, Gang, Guan, Zhiqiang, Chen, Ye, Lee, Chun-Sing, Wang, Jinlan, Ling, Chongyi, Shao, Minhua, Fan, Zhaunxi, and Zhang, Hua

Abstract

Controlled construction of bimetallic nanostructures with a well-defined heterophase is of great significance for developing highly efficient nanocatalysts and investigating the structure-dependent catalytic performance. Here, a wet-chemical synthesis method is used to prepare Au@Pd core-shell nanorods with a unique fcc-2H-fcc heterophase (fcc: face-centered cubic; 2H: hexagonal close-packed with a stacking sequence of "AB"). The obtained fcc-2H-fcc heterophase Au@Pd core-shell nanorods exhibit superior electrocatalytic ethanol oxidation performance with a mass activity as high as 6.82 A mgPd-1, which is 2.44, 6.96, and 6.43 times those of 2H-Pd nanoparticles, fcc-Pd nanoparticles, and commercial Pd/C, respectively. The operando infrared reflection absorption spectroscopy reveals a C2 pathway with fast reaction kinetics for the ethanol oxidation on the prepared heterophase Au@Pd nanorods. Our experimental results together with density functional theory calculations indicate that the enhanced performance of heterophase Au@Pd nanorods can be attributed to the unconventional 2H phase, the 2H/fcc phase boundary, and the lattice expansion of the Pd shell. Moreover, the heterophase Au@Pd nanorods can also serve as an efficient catalyst for the electrochemical oxidation of methanol, ethylene glycol, and glycerol. Our work in the area of phase engineering of nanomaterials (PENs) opens the way for developing high-performance electrocatalysts toward future practical applications. ©

Published
2022

25. 2D/0D hierarchical heterostructures prepared via facet-selective epitaxial growth of triangular Rh nanoplates on 2H-Pd nanoparticles

Author

Wang, Xixi, Ge, Yiyao, Zhang, Qinghua, Lin, Ting, Chen, Bo, Li, Lujiang, Huang, Zhiqi, Yun, Qinbai, Zhou, Xichen, Shi, Zhenyu, Liu, Guanghua, Liu, Jiawei, Wang, Gang, Zheng, Long, Huang, Biao, Liao, Lingwen, Yao, Yao, Zhai, Li, Lu, Shiyao, Luo, Qinxin, Chen, Ye, Gu, Lin, Zhang, Hua, Wang, Xixi, Ge, Yiyao, Zhang, Qinghua, Lin, Ting, Chen, Bo, Li, Lujiang, Huang, Zhiqi, Yun, Qinbai, Zhou, Xichen, Shi, Zhenyu, Liu, Guanghua, Liu, Jiawei, Wang, Gang, Zheng, Long, Huang, Biao, Liao, Lingwen, Yao, Yao, Zhai, Li, Lu, Shiyao, Luo, Qinxin, Chen, Ye, Gu, Lin, and Zhang, Hua

Abstract

Phase engineering of nanomaterials opens a promising gateway to the construction of noble metal hierarchical heterostructures in a well-defined manner. Here, by using zero-dimensional (0D) Pd nanoparticles with hexagonal close-packed (hcp, 2H type) phase, denoted as 2H-Pd, as seeds, we report a facet-selective epitaxial growth method to prepare two-dimensional (2D)/0D Pd@Rh hierarchical heterostructures, in which two parallel triangular Rh nanoplates selectively grow on two opposite (002)h facets of 2H-Pd due to the confined growth of Rh along <002>h direction. Systematic characterizations demonstrate that a phase transformation from 2H phase to 2H/face-centered cubic (fcc) heterophase occurs during the formation of such 2D/0D hierarchical heterostructure with the continuous growth of Rh nanoplates. The obtained 2D/0D Pd@Rh hierarchical heterostructures with a Pd/Rh atomic ratio of ∼39/61, denoted as Pd39@Rh61, exhibit excellent performance toward electrochemical hydrogen evolution reaction (HER) in acid electrolyte. To reach the current density of 10 mA cm–2, the overpotential of only 21.3 mV is required for the 2D/0D Pd39@Rh61, which is comparable to commercial Pt/C and also among the best Rh-based HER catalysts reported until now.

Published
2022

26. Confined Growth of Silver–Copper Janus Nanostructures with {100} Facets for Highly Selective Tandem Electrocatalytic Carbon Dioxide Reduction

Author

Ma, Yangbo, primary, Yu, Jinli, additional, Sun, Mingzi, additional, Chen, Bo, additional, Zhou, Xichen, additional, Ye, Chenliang, additional, Guan, Zhiqiang, additional, Guo, Weihua, additional, Wang, Gang, additional, Lu, Shiyao, additional, Xia, Dongsheng, additional, Wang, Yunhao, additional, He, Zhen, additional, Zheng, Long, additional, Yun, Qinbai, additional, Wang, Liqiang, additional, Zhou, Jingwen, additional, Lu, Pengyi, additional, Yin, Jinwen, additional, Zhao, Yifei, additional, Luo, Zhongbin, additional, Zhai, Li, additional, Liao, Lingwen, additional, Zhu, Zonglong, additional, Ye, Ruquan, additional, Chen, Ye, additional, Lu, Yang, additional, Xi, Shibo, additional, Huang, Bolong, additional, Lee, Chun‐Sing, additional, and Fan, Zhanxi, additional

Published
2022
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27. Surface Molecular Functionalization of Unusual Phase Metal Nanomaterials for Highly Efficient Electrochemical Carbon Dioxide Reduction under Industry‐Relevant Current Density

Author

Wang, Juan, primary, Yu, Jinli, additional, Sun, Mingzi, additional, Liao, Lingwen, additional, Zhang, Qinghua, additional, Zhai, Li, additional, Zhou, Xichen, additional, Li, Lujiang, additional, Wang, Gang, additional, Meng, Fanqi, additional, Shen, Dong, additional, Li, Zijian, additional, Bao, Haibo, additional, Wang, Yunhao, additional, Zhou, Jingwen, additional, Chen, Ye, additional, Niu, Wenxin, additional, Huang, Bolong, additional, Gu, Lin, additional, Lee, Chun‐Sing, additional, and Fan, Zhanxi, additional

Published
2022
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28. Preparation of Au@Pd Core–Shell Nanorods with fcc-2H-fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation

Author

Zhou, Xichen, primary, Ma, Yangbo, additional, Ge, Yiyao, additional, Zhu, Shangqian, additional, Cui, Yu, additional, Chen, Bo, additional, Liao, Lingwen, additional, Yun, Qinbai, additional, He, Zhen, additional, Long, Huiwu, additional, Li, Lujiang, additional, Huang, Biao, additional, Luo, Qinxin, additional, Zhai, Li, additional, Wang, Xixi, additional, Bai, Licheng, additional, Wang, Gang, additional, Guan, Zhiqiang, additional, Chen, Ye, additional, Lee, Chun-Sing, additional, Wang, Jinlan, additional, Ling, Chongyi, additional, Shao, Minhua, additional, Fan, Zhanxi, additional, and Zhang, Hua, additional

Published
2021
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29. Seeded Synthesis of Unconventional 2H-Phase Pd Alloy Nanomaterials for Highly Efficient Oxygen Reduction

Author

Ge, Yiyao, primary, Wang, Xixi, additional, Huang, Biao, additional, Huang, Zhiqi, additional, Chen, Bo, additional, Ling, Chongyi, additional, Liu, Jiawei, additional, Liu, Guanghua, additional, Zhang, Jie, additional, Wang, Gang, additional, Chen, Ye, additional, Li, Lujiang, additional, Liao, Lingwen, additional, Wang, Lei, additional, Yun, Qinbai, additional, Lai, Zhuangchai, additional, Lu, Shiyao, additional, Luo, Qinxin, additional, Wang, Jinlan, additional, Zheng, Zijian, additional, and Zhang, Hua, additional

Published
2021
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30. Preparation of Au@Pd Core-Shell Nanorods with fcc-2H- fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation

Author

Zhou, Xichen, Ma, Yongbo, Ge, Yiyao, Zhu, Shangqian, Cui, Yu, Chen, Bo, Liao, Lingwen, Yun, Qinbai, He, Zhen, Long, Huiwu, Li, Lujiang, Huang, Biao, Luo, Qinxin, Zhai, Li, Wang, Xixi, Bai, Licheng, Wang, Gang, Guan, Zhiqiang, Chen, Ye, Lee, Chun-Sing, Wang, Jinlan, Ling, Chongyi, Shao, Minhua, Fan, Zhaunxi, Zhang, Hua, Zhou, Xichen, Ma, Yongbo, Ge, Yiyao, Zhu, Shangqian, Cui, Yu, Chen, Bo, Liao, Lingwen, Yun, Qinbai, He, Zhen, Long, Huiwu, Li, Lujiang, Huang, Biao, Luo, Qinxin, Zhai, Li, Wang, Xixi, Bai, Licheng, Wang, Gang, Guan, Zhiqiang, Chen, Ye, Lee, Chun-Sing, Wang, Jinlan, Ling, Chongyi, Shao, Minhua, Fan, Zhaunxi, and Zhang, Hua

Abstract

Controlled construction of bimetallic nanostructures with a well-defined heterophase is of great significance for developing highly efficient nanocatalysts and investigating the structure-dependent catalytic performance. Here, a wet-chemical synthesis method is used to prepare Au@Pd core-shell nanorods with a unique fcc-2H-fcc heterophase (fcc: face-centered cubic; 2H: hexagonal close-packed with a stacking sequence of "AB"). The obtained fcc-2H-fcc heterophase Au@Pd core-shell nanorods exhibit superior electrocatalytic ethanol oxidation performance with a mass activity as high as 6.82 A mgPd-1, which is 2.44, 6.96, and 6.43 times those of 2H-Pd nanoparticles, fcc-Pd nanoparticles, and commercial Pd/C, respectively. The operando infrared reflection absorption spectroscopy reveals a C2 pathway with fast reaction kinetics for the ethanol oxidation on the prepared heterophase Au@Pd nanorods. Our experimental results together with density functional theory calculations indicate that the enhanced performance of heterophase Au@Pd nanorods can be attributed to the unconventional 2H phase, the 2H/fcc phase boundary, and the lattice expansion of the Pd shell. Moreover, the heterophase Au@Pd nanorods can also serve as an efficient catalyst for the electrochemical oxidation of methanol, ethylene glycol, and glycerol. Our work in the area of phase engineering of nanomaterials (PENs) opens the way for developing high-performance electrocatalysts toward future practical applications. ©

Published
2021

31. Seeded Synthesis of Unconventional 2H-Phase Pd Alloy Nanomaterials for Highly Efficient Oxygen Reduction

Author

Ge, Yiyao, Wang, Xixi, Huang, Biao, Huang, Zhiqi, Chen, Bo, Ling, Chongyi, Liu, Jiawei, Liu, Guanghua, Zhang, Jie, Wang, Gang, Chen, Ye, Li, Lujiang, Liao, Lingwen, Wang, Lei, Yun, Qinbai, Lai, Zhuangchai, Lu, Shiyao, Luo, Qinxin, Wang, Jinlan, Zheng, Zijian, Zhang, Hua, Ge, Yiyao, Wang, Xixi, Huang, Biao, Huang, Zhiqi, Chen, Bo, Ling, Chongyi, Liu, Jiawei, Liu, Guanghua, Zhang, Jie, Wang, Gang, Chen, Ye, Li, Lujiang, Liao, Lingwen, Wang, Lei, Yun, Qinbai, Lai, Zhuangchai, Lu, Shiyao, Luo, Qinxin, Wang, Jinlan, Zheng, Zijian, and Zhang, Hua

Abstract

Crystal phase engineering of noble-metal-based alloy nanomaterials paves a new way to the rational synthesis of high-performance catalysts for various applications. However, the controlled preparation of noble-metal-based alloy nanomaterials with unconventional crystal phases still remains a great challenge due to their thermodynamically unstable nature. Herein, we develop a robust and general seeded method to synthesize PdCu alloy nanomaterials with unconventional hexagonal close-packed (hcp, 2H type) phase and also tunable Cu contents. Moreover, galvanic replacement of Cu by Pt can be further conducted to prepare unconventional trimetallic 2H-PdCuPt nanomaterials. Impressively, 2H-Pd67Cu33 nanoparticles possess a high mass activity of 0.87 A mg–1Pd at 0.9 V (vs reversible hydrogen electrode (RHE)) in electrochemical oxygen reduction reaction (ORR) under alkaline condition, which is 2.5 times that of the conventional face-centered cubic (fcc) Pd69Cu31 counterpart, revealing the important role of crystal phase on determining the ORR performance. After the incorporation of Pt, the obtained 2H-Pd71Cu22Pt7 catalyst shows a significantly enhanced mass activity of 1.92 A mg–1Pd+Pt at 0.9 V (vs RHE), which is 19.2 and 8.7 times those of commercial Pt/C and Pd/C, placing it among the best reported Pd-based ORR electrocatalysts under alkaline conditions.

Published
2021

38. Module Replacement of Gold Nanoparticles by a Pseudo-AGR Process

Author

Jin, Fengming, primary, Dong, Hongwei, additional, Zhao, Yan, additional, Zhuang, Shengli, additional, Liao, Lingwen, additional, Yan, Nan, additional, Gu, Wanmiao, additional, Zha, Jun, additional, Yuan, Jinyun, additional, Li, Jin, additional, Deng, Haiteng, additional, Gan, Zibao, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2020
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39. Titelbild: Atomically Precise Nanometer‐Sized Pt Catalysts with an Additional Photothermy Functionality (Angew. Chem. 25/2024).

Author

Wang, Runguo, Chen, Dong, Fang, Liang, Fan, Wentao, You, Qing, Bian, Guoqing, Zhou, Yue, Gu, Wanmiao, Wang, Chengming, Bai, Licheng, Li, Jin, Deng, Haiteng, Liao, Lingwen, Yang, Jun, and Wu, Zhikun

Subjects
MELTING points, PHOTOTHERMAL conversion, CATALYTIC activity, POLYMER melting, FLOW batteries
Abstract

This article, published in Angewandte Chemie, discusses the discovery of the largest organic-ligand-protected Pt nanoclusters with atomic precision. The researchers found that these Pt23 nanoclusters exhibited superior catalytic activity for the oxygen reduction reaction under acidic conditions compared to commercial Pt/C catalysts, without the need for additional treatments. Additionally, the nanoclusters demonstrated excellent photothermal conversion efficiency, suggesting potential applications in various fields. The article also briefly mentions other research topics, including the synthesis of sulfur-containing polymers and the development of naphthalene diimide anolytes for neutral flow batteries. [Extracted from the article]

Published
2024
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44. Inside Cover: Fcc versus Non‐fcc Structural Isomerism of Gold Nanoparticles with Kernel Atom Packing Dependent Photoluminescence (Angew. Chem. Int. Ed. 14/2019)

Author

Zhuang, Shengli, primary, Liao, Lingwen, additional, Yuan, Jinyun, additional, Xia, Nan, additional, Zhao, Yan, additional, Wang, Chengming, additional, Gan, Zibao, additional, Yan, Nan, additional, He, Lizhong, additional, Li, Jin, additional, Deng, Haiteng, additional, Guan, Zhaoyong, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2019
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45. Innentitelbild: Fcc versus Non‐fcc Structural Isomerism of Gold Nanoparticles with Kernel Atom Packing Dependent Photoluminescence (Angew. Chem. 14/2019)

Author

Zhuang, Shengli, primary, Liao, Lingwen, additional, Yuan, Jinyun, additional, Xia, Nan, additional, Zhao, Yan, additional, Wang, Chengming, additional, Gan, Zibao, additional, Yan, Nan, additional, He, Lizhong, additional, Li, Jin, additional, Deng, Haiteng, additional, Guan, Zhaoyong, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2019
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46. Fcc versus Non‐fcc Structural Isomerism of Gold Nanoparticles with Kernel Atom Packing Dependent Photoluminescence

Author

Zhuang, Shengli, primary, Liao, Lingwen, additional, Yuan, Jinyun, additional, Xia, Nan, additional, Zhao, Yan, additional, Wang, Chengming, additional, Gan, Zibao, additional, Yan, Nan, additional, He, Lizhong, additional, Li, Jin, additional, Deng, Haiteng, additional, Guan, Zhaoyong, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2019
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48. Hard‐Sphere Random Close‐Packed Au47Cd2(TBBT)31 Nanoclusters with a Faradaic Efficiency of Up to 96 % for Electrocatalytic CO2 Reduction to CO.

Author

Zhuang, Shengli, Chen, Dong, Liao, Lingwen, Zhao, Yan, Xia, Nan, Zhang, Wenhao, Wang, Chengming, Yang, Jun, and Wu, Zhikun

Subjects
METALS, CADMIUM
Abstract

Metal nanoclusters have recently attracted considerable attention, not only because of their special size range but also because of their well‐defined compositions and structures. However, subtly tailoring the compositions and structures of metal nanoclusters for potential applications remains challenging. Now, a two‐phase anti‐galvanic reduction (AGR) method is presented for precisely tailoring Au44(TBBT)28 to produce Au47Cd2(TBBT)31 nanoclusters with a hard‐sphere random close‐packed structure, exhibiting Faradaic efficiencies of up to 96 % at −0.57 V for the electrocatalytic reduction of CO2 to CO. [ABSTRACT FROM AUTHOR]

Published
2020
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49. Kernel Homology in Gold Nanoclusters

Author

Zhuang, Shengli, primary, Liao, Lingwen, additional, Yuan, Jinyun, additional, Wang, Chengming, additional, Zhao, Yan, additional, Xia, Nan, additional, Gan, Zibao, additional, Gu, Wanmiao, additional, Li, Jin, additional, Deng, Haiteng, additional, Yang, Jinlong, additional, and Wu, Zhikun, additional

Published
2018
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