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658 results on '"Jiang, Luhua"'

154. Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070

Author

You, Bei, primary, Tuo, Yuoli, additional, Li, Chengzhe, additional, Wang, Wei, additional, Zhang, Shuang-Nan, additional, Zhang, Shu, additional, Ge, Mingyu, additional, Luo, Chong, additional, Liu, Bifang, additional, Yuan, Weimin, additional, Dai, Zigao, additional, Liu, Jifeng, additional, Qiao, Erlin, additional, Jin, Chichuan, additional, Liu, Zhu, additional, Czerny, Bozena, additional, Wu, Qingwen, additional, Bu, Qingcui, additional, Cai, Ce, additional, Cao, Xuelei, additional, Chang, Zhi, additional, Chen, Gang, additional, Chen, Li, additional, Chen, Tianxiang, additional, Chen, Yibao, additional, Chen, Yong, additional, Chen, Yupeng, additional, Cui, Wei, additional, Cui, Weiwei, additional, Deng, Jingkang, additional, Dong, Yongwei, additional, Du, Yuanyuan, additional, Fu, Minxue, additional, Gao, Guanhua, additional, Gao, He, additional, Gao, Min, additional, Gu, Yudong, additional, Guan, Ju, additional, Guo, Chengcheng, additional, Han, Dawei, additional, Huang, Yue, additional, Huo, Jia, additional, Jia, Shumei, additional, Jiang, Luhua, additional, Jiang, Weichun, additional, Jin, Jing, additional, Jin, Yongjie, additional, Kong, Lingda, additional, Li, Bing, additional, Li, Chengkui, additional, Li, Gang, additional, Li, Maoshun, additional, Li, Tipei, additional, Li, Wei, additional, Li, Xian, additional, Li, Xiaobo, additional, Li, Xufang, additional, Li, Yanguo, additional, Li, Zhengwei, additional, Liang, Xiaohua, additional, Liao, Jinyuan, additional, Liu, Congzhan, additional, Liu, Guoqing, additional, Liu, Hongwei, additional, Liu, Xiaojing, additional, Liu, Yinong, additional, Lu, Bo, additional, Lu, Fangjun, additional, Lu, Xuefeng, additional, Luo, Qi, additional, Luo, Tao, additional, Ma, Xiang, additional, Meng, Bin, additional, Nang, Yi, additional, Nie, Jianyin, additional, Ou, Ge, additional, Qu, Jinlu, additional, Sai, Na, additional, Shang, Rencheng, additional, Song, Liming, additional, Song, Xinying, additional, Sun, Liang, additional, Tan, Ying, additional, Tao, Lian, additional, Wang, Chen, additional, Wang, Guofeng, additional, Wang, Juan, additional, Wang, Lingjun, additional, Wang, Wenshuai, additional, Wang, Yusa, additional, Wen, Xiangyang, additional, Wu, Baiyang, additional, Wu, Bobing, additional, Wu, Mei, additional, Xiao, Guangcheng, additional, Xiao, Shuo, additional, Xiong, Shaolin, additional, Xu, Yupeng, additional, Yang, Jiawei, additional, Yang, Sheng, additional, Yang, Yanji, additional, Yi, Qibin, additional, Yin, Qianqing, additional, You, Yuan, additional, Zhang, Aimei, additional, Zhang, Chengmo, additional, Zhang, Fan, additional, Zhang, Hongmei, additional, Zhang, Juan, additional, Zhang, Tong, additional, Zhang, Wanchang, additional, Zhang, Wei, additional, Zhang, Wenzhao, additional, Zhang, Yi, additional, Zhang, Yifei, additional, Zhang, Yongjie, additional, Zhang, Yue, additional, Zhang, Zhao, additional, Zhang, Ziliang, additional, Zhao, Haisheng, additional, Zhao, Xiaofan, additional, Zheng, Shijie, additional, Zhou, Dengke, additional, Zhou, Jianfeng, additional, Zhu, Yuxuan, additional, and Zhu, Yue, additional

Published
2021
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157. An interconnected-graphene enveloped titanium dioxide flower as a robust support for proton exchange membrane fuel cells.

Author

Gao, Jie, Sun, Zhongyin, Wang, Jie, Fan, Chaohua, Cui, Xuejing, Liu, Jing, and Jiang, Luhua

Subjects
PROTON exchange membrane fuel cells, TITANIUM dioxide, FUEL cell electrodes, OXYGEN reduction, CATALYST supports, OXYGEN electrodes
Abstract

Support corrosion is a traditional intractable problem for oxygen electrodes of fuel cells, so developing anti-corrosion supports is highly desirable. Herein, we fabricate a three-dimensional (3D) interconnected-graphene enveloped titanium dioxide flower (TiO2@RGO) as a robust support for the oxygen reduction reaction (ORR). Benefiting from the unique 3D architecture, the TiO2@RGO composite possesses both a large surface area of 174 m2 g−1 and a superior electrical conductivity of 0.19 S cm−1, enabling an electron highway for efficient simultaneous mass transfer of reactants. After loading Pt nanoparticles, the Pt–TiO2@RGO catalyst exhibits a similar catalytic activity to the commercial Pt/C catalyst, while superior stability under the accelerated degradation protocols for both catalysts (0.6–1.0VRHE) and supports (1.0–1.5VRHE), due to the strong metal–support interaction (SMSI) of Pt nanoparticles and the TiO2@RGO composite support. The PEMFC with the Pt–TiO2@RGO cathode delivers a peak power density of 901 mW cm−2, which is comparable to that with a Pt/C cathode. This work proposes a new strategy for designing robust catalyst supports for PEMFCs. [ABSTRACT FROM AUTHOR]

Published
2022
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164. Spatial Distribution of Toxic Metal(loid)s and Microbial Community Analysis in Soil Vertical Profile at an Abandoned Nonferrous Metal Smelting Site

Author

Yang, Jiejie, primary, Wang, Siqi, additional, Guo, Ziwen, additional, Deng, Yan, additional, Xu, Menglong, additional, Zhang, Siyuan, additional, Yin, Huaqun, additional, Liang, Yili, additional, Liu, Hongwei, additional, Miao, Bo, additional, Meng, Delong, additional, Liu, Xueduan, additional, and Jiang, Luhua, additional

Published
2020
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165. Assessing Chromium Contamination in Red Soil: Monitoring the Migration of Fractions and the Change of Related Microorganisms

Author

Zhang, Siyuan, primary, Hao, Xiaodong, additional, Tang, Jiahui, additional, Hu, Jin, additional, Deng, Yan, additional, Xu, Menglong, additional, Zhu, Ping, additional, Tao, Jiemeng, additional, Liang, Yili, additional, Yin, Huaqun, additional, Jiang, Luhua, additional, Liu, Xueduan, additional, and Liu, Hongwei, additional

Published
2020
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171. Bioremediation of cadmium-contaminated paddy soil using an autotrophic and heterotrophic mixture

Author

Xu, Menglong, primary, Liu, Yazi, additional, Deng, Yan, additional, Zhang, Siyuan, additional, Hao, Xiaodong, additional, Zhu, Ping, additional, Zhou, Jieyi, additional, Yin, Huaqun, additional, Liang, Yili, additional, Liu, Hongwei, additional, Liu, Xueduan, additional, Bai, Lianyang, additional, Jiang, Luhua, additional, and Jiang, Huidan, additional

Published
2020
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186. Carbon‐Supported Divacancy‐Anchored Platinum Single‐Atom Electrocatalysts with Superhigh Pt Utilization for the Oxygen Reduction Reaction

Author

Liu, Jing, primary, Jiao, Menggai, additional, Mei, Bingbao, additional, Tong, Yuxin, additional, Li, Yuping, additional, Ruan, Mingbo, additional, Song, Ping, additional, Sun, Gongquan, additional, Jiang, Luhua, additional, Wang, Ying, additional, Jiang, Zheng, additional, Gu, Lin, additional, Zhou, Zhen, additional, and Xu, Weilin, additional

Published
2019
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190. Anderson-Type Polyoxometalate-Assisted Synthesis of Defect-Rich Doped 1T/2H-MoSe2Nanosheets for Efficient Seawater Splitting and Mg/Seawater Batteries

Author

Xu, Yingshuang, Fo, Yumeng, Lv, Honghao, Cui, Xuejing, Liu, Guangbo, Zhou, Xin, and Jiang, Luhua

Abstract

Designing high-performance hydrogen evolution reaction (HER) catalysts is crucial for seawater splitting. Herein, we demonstrate a facile Anderson-type polyoxometalate-assisted synthesis route to prepare defect-rich doped 1T/2H-MoSe2nanosheets. As demonstrated, the optimized defect-rich doped 1T/2H-MoSe2nanosheets display low overpotentials of 116 and 274 mV to gain 10 mA cm–2in acidic and simulated seawater for the HER, respectively. A magnesium (Mg)/seawater battery was fabricated with the defect-rich doped 1T/2H-MoSe2nanosheet cathode, displaying the highest power density of up to 7.69 mW cm–2and stable galvanostatic discharging over 24 h. The theoretical and experimental investigations show that the superior HER and battery performances of the heteroatom-doped MoSe2nanosheets are attributed to both the improved intrinsic catalytic activity (effective activation of water and favorable subsequent hydrogen desorption) and the abundant active sites, benefiting from the favorable catalytic factors of the doped heteroatom, 1T phase, and defects. Our work presents an intriguing structural modulation strategy to design high-performance catalysts toward both HER and Mg/seawater batteries.

Published
2022
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192. Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods

Author

Krehula, Stjepko, Ristić, Mira, Mitar, Ivana, Wu, Chuchu, Li, Xuning, Jiang, Luhua, Wang, Junhu H., Sun, Gongquan, Zhang, Tao, Perović, Marija M., Bošković, Marko, Antić, Bratislav, Musić, Svetozar, Krehula, Stjepko, Ristić, Mira, Mitar, Ivana, Wu, Chuchu, Li, Xuning, Jiang, Luhua, Wang, Junhu H., Sun, Gongquan, Zhang, Tao, Perović, Marija M., Bošković, Marko, Antić, Bratislav, and Musić, Svetozar

Abstract

Ni-doped goethite (α-FeOOH) nanorods were synthesized from mixed Fe(III)-Ni(II) nitrate solutions with various Ni/(Ni+Fe) ratios (0, 5, 10, 20, 33 and 50 mol % Ni) by hydrothermal precipitation in a highly alkaline medium using the strong organic alkali, tetramethylammonium hydroxide (TMAH). Ni-doped hematite (α-Fe2O3) nanorods were obtained by calcination of Ni-doped goethite nanorods at 400 °C. The Ni 2+ -for-Fe 3+ substitution in goethite and hematite was confirmed by determination of the unit cell expansion (due to the difference in the ionic radii of Fe 3+ and Ni 2+ ) using XRPD and determination of the reduction of a hyperfine magnetic field (due to the difference in magnetic moments of Fe 3+ and Ni 2+ ) using Mössbauer spectroscopy. Single-phase goethite nanorods were found in samples containing 0 or 5 mol % Ni. A higher Ni content in the precipitation system (10 mol % or more) resulted in a higher Ni 2+ -for-Fe 3+ substitution in goethite, and larger Ni-doped goethite nanorods, though with the presence of low crystalline Ni-containing ferrihydrite and Ni ferrite (NiFe2O4) as additional phases. Significant changes in FT-IR and UV-Vis-NIR spectra of prepared samples were observed with increasing Ni content. Electrochemical measurements of samples showed a strong increase in oxygen evolution reaction (OER) electrocatalytic activity with increasing Ni content. © 2018 Croatian Chemical Society. All Rights Reserved.

Published
2018

193. Influence of Fe(III) doping on the crystal structure and properties of hydrothermally prepared β-Ni(OH) 2 nanostructures

Author

Krehula, Stjepko, Ristić, Mira, Wu, Chuchu, Li, Xuning, Jiang, Luhua, Wang, Junhu H., Sun, Gongquan, Zhang, Tao, Perović, Marija M., Bošković, Marko, Antić, Bratislav, Kratofil Krehula, Ljerka, Kobzi, Balazs, Kubuki, Shiro, Musić, Svetozar, Krehula, Stjepko, Ristić, Mira, Wu, Chuchu, Li, Xuning, Jiang, Luhua, Wang, Junhu H., Sun, Gongquan, Zhang, Tao, Perović, Marija M., Bošković, Marko, Antić, Bratislav, Kratofil Krehula, Ljerka, Kobzi, Balazs, Kubuki, Shiro, and Musić, Svetozar

Abstract

This paper systematically examines the influence of the level of Fe(III) doping on the crystal structure and other properties of Ni(OH)(2). Reference beta-Ni(OH)(2) and Fe-doped Ni(OH)(2) samples were synthesized by hydrothermal precipitation of mixed Ni(II) and Fe(III) nitrate aqueous solutions in a highly alkaline medium. The samples were investigated using X-ray powder diffraction (XRPD), scanning and transmission electron microscopy (FE-SEM and TEM), energy dispersive X-ray spectroscopy (EDS), Mossbauer spectroscopy, magnetic measurements, Fourier transform infrared (FT-IR) spectroscopy, ultraviolet-visible-near infrared (UV-Vis-NIR) spectroscopy, thermogravimetric analysis (TGA) and electrochemical measurements. Incorporation of Fe in beta-Ni(OH)(2) by cation substitution was confirmed from the shifts in position of XRPD lines due to the difference in the ionic radius of Fe3+ and Ni-2. The Fe-3-for-Ni2+ substitution in beta-Ni(OH)(2) caused formation of an interstratifled structure with beta-Ni(OH)(2) and alpha-Ni(OH)(2) structural units interconnected within the same structural layers and crystallites. Mossbauer spectra revealed the presence of Fe3+ ions in highly distorted octahedral sites, presumably at the boundary between the alpha-Ni(OH)(2) and beta-Ni(OH)(2) structural units within the same structural layer. Electrochemical measurements showed significant increase in oxygen evolution reaction (OER) catalytic activity of Fe-doped Ni(OH)(2) compared to pure phase. (C) 2018 Elsevier B.V. All rights reserved.

Published
2018

195. Recent Progress on Photo‐Promoted Alcohol Electrooxidation for Fuel Cells.

Author

Liu, Jing, Fan, Chaohua, Xie, Xingming, and Jiang, Luhua

Subjects
ALCOHOL as fuel, FUEL cells, SOLAR energy, ALCOHOL oxidation, DIRECT methanol fuel cells
Abstract

Alcohol electrooxidation reaction (AOR) is of sluggish kinetics, which as the anodic reaction of direct alcohol fuel cells determines largely the discharging performance of the device. Solar energy as an endless energy source is introduced to promote the AOR kinetics. Herein, the recent progress on photo‐promoted AOR and the application in fuel cells is reviewed, including 1) design of the AOR photoelectrocatalysts, 2) photoelectrocatalysis mechanism, and 3) fabrication of photo‐promoted direct alcohol fuel cells (PDAFCs). Finally, a perspective on the challenges of PDAFCs and new directions in this exciting and still emerging research area are given. [ABSTRACT FROM AUTHOR]

Published
2021
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196. Allelochemicals Extracted from Eleocharis dulcis and their Inhibitory Effects on Microcystis aeruginosa

Author

Jun Wen, Jiang Luhua, Liu Yunguo, Chen Hao, Yan Zhi-li, Hua Sheng, and Hua Quan

Subjects
0106 biological sciences, 0301 basic medicine, chemistry.chemical_classification, Antioxidant, biology, 010604 marine biology & hydrobiology, medicine.medical_treatment, Flavonoid, Glutathione, Eriodictyol, biology.organism_classification, 01 natural sciences, Superoxide dismutase, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, chemistry, Catalase, medicine, biology.protein, Microcystis aeruginosa, Food science, Allelopathy
Abstract

Allelochemicals are considered to be effective substances for controlling the outbreak of harmful cyanobacteria. In this study, Eleocharis dulcis peel fractions with an inhibitory effect on Microcystis aeruginosa were isolated by extraction and purification. The extracted organic compounds were identified by gas chromatography-mass spectrometry (GC-MS), and the allelopathic effect and mechanism underlying the inhibition of M. aeruginosawere explored. The results demonstrated that the exogenous compound, eriodictyol, corresponding to one of the detected flavonoids (C15H12O6) could inhibit the growth of M. aeruginosa, indicating that the flavonoid C15H12O6 is one of the allelochemicals contained in E. dulcis. Levels of chlorophyll a (Chl-a), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and reduced glutathione (GSH) of cell health in M. aeruginosa were analysed. Our results show that the damage to the antioxidant enzymes of algal cells caused by eriodictyol could be a main contributing factor to the decrease in the number of algal cells and even cell death.

Published
2017
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197. Optimized W-dband configuration in porous sodium tungsten bronze octahedron enabling Pt-like and wide-pH hydrogen evolution

Author

Liu, Guangbo, Liu, Shukun, Li, Xiaolei, Lv, Honghao, Qu, He, Quan, Qinghao, Lu, Huasen, Cui, Xuejing, Zhou, Xin, Jiang, Luhua, and Qiu, Jieshan

Abstract

Metal d-band configuration is decisive to the interaction of metals with reactants and intermediates, therefore often governs the catalytic activity. Herein, we for the first time demonstrate a family of alkali tungsten bronzes (MxWO3, M = Na, K, Rb, Cs and 0

Published
2024
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198. Preparation of Fe–Co–P–Gr/NF Coating via Electroless Composite Plating as Efficient Electrocatalysts for Overall Water Splitting.

Author

Wang, Kaihang, Sun, Kaili, Li, Zihan, Lv, Zunhang, Yu, Tianpeng, Liu, Xin, Wang, Guixue, Xie, Guangwen, and Jiang, Luhua

Abstract

The development of electrocatalysts with high activity and low Tafel slope for overall water splitting has become a crucial challenge to exploit the sustainable energy. Herein, we construct a Fe–Co–P–Gr catalyst on nickel foam (NF) support through electroless composite plating to realize the co-deposition of Fe–Co–P alloys and graphene quantum dots. Interestingly, graphene quantum dots exhibit obvious effects on electron mobility and active sites of Fe–Co–P–Gr/NF catalyst. In oxygen evolution reaction, the Fe–Co–P–Gr/NF catalyst exhibits a small overpotential of 230 mV at 10 mA cm−2 and fast kinetics with Tafel slope of 37.8 mV dec−1. Meanwhile, the Fe–Co–P–Gr/NF also has a superior hydrogen evolution reaction performance in 1.0 M KOH. Compared with the Fe–Co–P alloys, the Fe–Co–P–Gr/NF both as the anode and cathode require only 1.58 V to reach a current density of 10 mA cm−2. The successful preparation of Fe–Co–P–Gr/NF electrode through electroless composite deposition provides a new path to manufacture electrocatalysts for overall water splitting. [ABSTRACT FROM AUTHOR]

Published
2020
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199. Carbon‐Supported Divacancy‐Anchored Platinum Single‐Atom Electrocatalysts with Superhigh Pt Utilization for the Oxygen Reduction Reaction

Author

Liu, Jing, primary, Jiao, Menggai, additional, Mei, Bingbao, additional, Tong, Yuxin, additional, Li, Yuping, additional, Ruan, Mingbo, additional, Song, Ping, additional, Sun, Gongquan, additional, Jiang, Luhua, additional, Wang, Ying, additional, Jiang, Zheng, additional, Gu, Lin, additional, Zhou, Zhen, additional, and Xu, Weilin, additional

Published
2018
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