21 results on '"Wei, Mao"'
Search Results
2. Plasmonic Hot Electron-Mediated Hydrodehalogenation Kinetics on Nanostructured Ag Electrodes
- Author
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Zhong-Qun Tian, Jia Liu, De-Yin Wu, Wei-Xin Sun, Jia-Zheng Wang, Xiao-Ru Shen, Jianzhang Zhou, Chao Zhan, Zhuan-Yun Cai, Rajkumar Devasenathipathy, and Bing-Wei Mao
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Field (physics) ,Chemistry ,Kinetics ,General Chemistry ,010402 general chemistry ,01 natural sciences ,Biochemistry ,Chemical reaction ,Catalysis ,0104 chemical sciences ,Colloid and Surface Chemistry ,Chemical physics ,Electrode ,Hot electron ,Plasmon - Abstract
An attractive field of plasmon-mediated chemical reactions (PMCRs) is developing rapidly, but there is still incomplete understanding of how to control the kinetics of such a reaction related to hot carriers. Here, we chose 8-bromoadenine (8BrAd) as a probe molecule of hot electrons to investigate the influence of the electrode potential, laser wavelength, and power on the PMCR kinetics on silver nanoparticle-modified silver electrodes. Plasmonic hot electron-mediated cleavage of the C-Br bond in 8BrAd has been investigated by combining in situ electrochemical surface-enhanced Raman spectroscopy and density functional theory calculations. The experimental and theoretical results reveal that the energy position of plasmon relaxation-generated hot electrons can be modulated conveniently by applied potentials and laser light. This allows the proposal of a mechanism of modulating the matching energy of the hot electron of plasmon relaxation to promote the efficiency of PMCRs in electrochemical interfaces. Our work will be helpful to design surface plasmon resonance photoelectrochemical reactions on metal electrode surfaces of nanostructures with higher efficiency.
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- 2020
3. Electronic Spillover from a Metallic Nanoparticle: Can Simple Electrochemical Electron Transfer Processes Be Catalyzed by Electronic Coupling of a Molecular Scale Gold Nanoparticle Simultaneously to the Redox Molecule and the Electrode?
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Renat R. Nazmutdinov, Jiawei Yan, Tamara T. Zinkicheva, Zhong-Qun Tian, Bing-Wei Mao, Jingdong Zhang, De-Yin Wu, Jens Ulstrup, Shokirbek A. Shermukhamedov, and Michael D. Bronshtein
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Chemistry ,Nanoparticle ,General Chemistry ,010402 general chemistry ,Electrochemistry ,Photochemistry ,01 natural sciences ,Biochemistry ,Redox ,Catalysis ,0104 chemical sciences ,Metal ,Electron transfer ,Colloid and Surface Chemistry ,Transition metal ,visual_art ,Electrode ,visual_art.visual_art_medium ,Molecule - Abstract
Electrochemical electron transfer (ET) of transition metal complexes or redox metalloproteins can be catalyzed by more than an order of magnitude by molecular scale metallic nanoparticles (NPs), often rationalized by concentration enhancement of the redox molecules in the interfacial region, but collective electronic AuNP array effects have also been forwarded. Using DFT combined with molecular electrochemical ET theory we explore here whether a single molecular scale Au nanocluster (AuC) between a Au (111) surface and the molecular redox probe ferrocene/ferricinium (Fc/Fc+) can trigger an ET rate increase. Computational challenges limit us to Au n Cs (n up to 147), which are smaller than most electrocatalytic AuCs studied experimentally. AuC-coating thiols are addressed both as adsorption of two S atoms at the structural Au55 bridge sites and as superexchange of variable-size AuCs via a single six-carbon alkanethiyl bridge. Our results are guiding, but enable comparing many AuC surface details (apex, ridge, face, direct vs superexchange ET) with a planar Au(111) surface. The rate-determining electronic transmission coefficients for ET between Fc/Fc+ and AuC are highly sensitive to subtle AuC electronic features. The transmission coefficients mostly compete poorly with direct Fc/Fc+ ET at the Au(111) surface, but Fc/Fc+ 100 face-bound on Au79 and Au147 and ridge bound on Au19 leads to a 2- or 3-fold rate enhancement, in different distance ranges. Single AuCs can thus indeed cause rate enhancement of simple electrochemical ET, but additional, possibly collective AuNC effects, as well as larger clusters and more complete coating layers, also need to be considered.
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- 2020
4. Toward Long-Term Stability: Single-Crystal Alloys of Cesium-Containing Mixed Cation and Mixed Halide Perovskite
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Yong Hui, Jing-Xin Huang, Zi-Ang Nan, Zhixin Chen, Zhong-Qun Tian, Liang Chen, Chao Zhan, Suheng Wang, Bing-Wei Mao, Yan-Yan Tan, Shu Hu, Li-Qiang Xie, Tan Wang, Jiawei Yan, and Jianzhang Zhou
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Silicon ,chemistry.chemical_element ,Halide ,General Chemistry ,Carrier lifetime ,010402 general chemistry ,01 natural sciences ,Biochemistry ,Oxygen ,Catalysis ,0104 chemical sciences ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,chemistry ,Chemical engineering ,Bromide ,Caesium ,Single crystal ,Perovskite (structure) - Abstract
Perovskite solar cells are strong competitors for silicon-based ones, but suffer from poor long-term stability, for which the intrinsic stability of perovskite materials is of primary concern. Herein, we prepared a series of well-defined cesium-containing mixed cation and mixed halide perovskite single-crystal alloys, which enabled systematic investigations on their structural stabilities against light, heat, water, and oxygen. Two potential phase separation processes are evidenced for the alloys as the cesium content increases to 10% and/or bromide to 15%. Eventually, a highly stable new composition, (FAPbI3)0.9(MAPbBr3)0.05(CsPbBr3)0.05, emerges with a carrier lifetime of 16 μs. It remains stable during at least 10 000 h water–oxygen and 1000 h light stability tests, which is very promising for long-term stable devices with high efficiency. The mechanism for the enhanced stability is elucidated through detailed single-crystal structure analysis. Our work provides a single-crystal-based paradigm for stab...
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- 2019
5. Controlling and Observing Sharp-Valleyed Quantum Interference Effect in Single Molecular Junctions
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Shan Jin, Xu Liu, Ze-Wen Hong, Jing-Zhe Chen, Ying Yuan, Yong Shao, Jian-Feng Li, Lin-Qi Pei, Xiao-Shun Zhou, Ju-Fang Zheng, Bing-Wei Mao, and Bing Huang
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Molecular junction ,Chemistry ,business.industry ,Molecular electronics ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Biochemistry ,Catalysis ,0104 chemical sciences ,Colloid and Surface Chemistry ,Quantum interference ,Optoelectronics ,0210 nano-technology ,business - Abstract
The ability to control over the quantum interference (QI) effect in single molecular junctions is attractive in the application of molecular electronics. Herein we report that the QI effect of meta-benzene based molecule with dihydrobenzo[ b]thiophene as the anchoring group ( meta-BT) can be controlled by manipulating the electrode potential of the junctions in electrolyte while the redox state of the molecule does not change. More than 2 orders of magnitude conductance change is observed for meta-BT ranging from10
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- 2018
6. Mobility and Reactivity of Oxygen Adspecies on Platinum Surface
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Fangfang Wang, Wei Wang, Bing-Wei Mao, Zhong-Qun Tian, Jie Zhang, and Dongping Zhan
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Surface diffusion ,Chemistry ,Inorganic chemistry ,chemistry.chemical_element ,Ultramicroelectrode ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Biochemistry ,Oxygen ,Catalysis ,0104 chemical sciences ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,Adsorption ,Desorption ,0210 nano-technology ,Platinum ,Carbon monoxide - Abstract
The adsorption and mobility of oxygen adspecies on platinum (Pt) surface are crucial for the oxidation of surface-absorbed carbon monoxide (CO), which causes the deactivation of Pt catalyst in fuel cells. By employing nanoelectrode and ultramicroelectrode techniques, we have observed the surface mobility of oxygen adspecies produced by the dissociative adsorption of H2O and the surface reaction between the oxygen adspecies and the preadsorbed CO on the Pt surface. The desorption charge of oxygen adspecies on a Pt nanoelectrode has been found to be in proportion to the reciprocal of the square root of scan rate. Using this information, the apparent surface diffusion coefficient of oxygen adspecies has been determined to be (5.61 ± 0.84) × 10(-10) cm(2)/s at 25 °C. During the surface oxidation of CO, two current peaks are observed, which are attributed to CO oxidation at the Pt/electrolyte interface and the surface mobility of the oxygen adspecies on the adjacent Pt surface, respectively. These results demonstrate that the surface mobility of oxygen adspecies plays an important role in the antipoisoning and reactivation of Pt catalyst.
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- 2016
7. Controlling the Stereochemistry and Regularity of Butanethiol Self-Assembled Monolayers on Au(111)
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Bing-Wei Mao, David Tanner, Jeffrey R. Reimers, Palle Skovhus Jensen, Erhad Ascic, Chunguang Tang, Jingdong Zhang, Noel S. Hush, Runhai Ouyang, Jens Ulstrup, and Jiawei Yan
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Steric effects ,Surface Properties ,Stereochemistry ,Biochemistry ,Catalysis ,law.invention ,chemistry.chemical_compound ,Molecular dynamics ,Colloid and Surface Chemistry ,law ,Monolayer ,Sulfhydryl Compounds ,Particle Size ,Chemistry ,Stereoisomerism ,Self-assembled monolayer ,General Chemistry ,3. Good health ,Crystallography ,Quantum Theory ,Density functional theory ,Gold ,Scanning tunneling microscope ,Butanethiol ,Chirality (chemistry) ,Organogold Compounds - Abstract
The rich stereochemistry of the self-assembled monolayers (SAMs) of four butanethiols on Au(111) is described, the SAMs containing up to 12 individual C, S, or Au chiral centers per surface unit cell. This is facilitated by synthesis of enantiomerically pure 2-butanethiol (the smallest unsubstituted chiral alkanethiol), followed by in situ scanning tunneling microscopy (STM) imaging combined with density functional theory molecular dynamics STM image simulations. Even though butanethiol SAMs manifest strong headgroup interactions, steric interactions are shown to dominate SAM structure and chirality. Indeed, steric interactions are shown to dictate the nature of the headgroup itself, whether it takes on the adatom-bound motif RS(•)Au(0)S(•)R or involves direct binding of RS(•) to face-centered-cubic or hexagonal-close-packed sites. Binding as RS(•) produces large, organizationally chiral domains even when R is achiral, while adatom binding leads to rectangular plane groups that suppress long-range expression of chirality. Binding as RS(•) also inhibits the pitting intrinsically associated with adatom binding, desirably producing more regularly structured SAMs.
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- 2014
8. Resolving Fine Structures of the Electric Double Layer of Electrochemical Interfaces in Ionic Liquids with an AFM Tip Modification Strategy
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Xiao Zhang, Dingwen He, Yun-Xin Zhong, Mian-Gang Li, Jiawei Yan, and Bing-Wei Mao
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Chemistry ,Atomic force microscopy ,Analytical chemistry ,General Chemistry ,Electrochemistry ,Biochemistry ,Catalysis ,Force curves ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,Chemical physics ,Ionic liquid ,Layering ,Selectivity - Abstract
We report enhanced force detection selectivity based on Coulombic interactions through AFM tip modification for probing fine structures of the electric double layer (EDL) in ionic liquids. When AFM tips anchored with alkylthiol molecular layers having end groups with different charge states (e.g., -CH3, -COO(-), and -NH3(+)) are employed, Coulombic interactions between the tip and a specified layering structure are intensified or diminished depending on the polarities of the tip and the layering species. Systematic potential-dependent measurements of force curves with careful inspection of layered features and thickness analysis allows the fine structure of the EDL at the Au(111)-OMIPF6 interface to be resolved at the subionic level. The enhanced force detection selectivity provides a basis for thoroughly understanding the EDL in ionic liquids.
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- 2014
9. Understanding the Cubic Phase Stabilization and Crystallization Kinetics in Mixed Cations and Halides Perovskite Single Crystals
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Li-Qiang Xie, Zi-Ang Nan, Tan Wang, Bing-Wei Mao, Haixin Lin, Zhong-Qun Tian, Dongping Zhan, Jiawei Yan, and Liang Chen
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Phase transition ,Chemistry ,Inorganic chemistry ,Halide ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Biochemistry ,Catalysis ,0104 chemical sciences ,Gibbs free energy ,symbols.namesake ,Crystallography ,Colloid and Surface Chemistry ,Formamidinium ,Phase (matter) ,Goldschmidt tolerance factor ,symbols ,0210 nano-technology ,Single crystal ,Perovskite (structure) - Abstract
The spontaneous α-to-δ phase transition of the formamidinium-based (FA) lead halide perovskite hinders its large scale application in solar cells. Though this phase transition can be inhibited by alloying with methylammonium-based (MA) perovskite, the underlying mechanism is largely unexplored. In this Communication, we grow high-quality mixed cations and halides perovskite single crystals (FAPbI3)1–x(MAPbBr3)x to understand the principles for maintaining pure perovskite phase, which is essential to device optimization. We demonstrate that the best composition for a perfect α-phase perovskite without segregation is x = 0.1–0.15, and such a mixed perovskite exhibits carrier lifetime as long as 11.0 μs, which is over 20 times of that of FAPbI3 single crystal. Powder XRD, single crystal XRD and FT-IR results reveal that the incorporation of MA+ is critical for tuning the effective Goldschmidt tolerance factor toward the ideal value of 1 and lowering the Gibbs free energy via unit cell contraction and cation ...
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- 2017
10. Growth and shape-ordering of iron nanostructures on Au single crystalline electrodes in an ionic liquid: a paradigm of magnetostatic coupling
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Yi-Min Wei, Yong-Chun Fu, Jia-Wei Yan, Chun-Feng Sun, Zhan Shi, Zhao-Xiong Xie, De-Yin Wu, and Bing-Wei Mao
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Gold -- Chemical properties ,Gold -- Electric properties ,Gold -- Magnetic properties ,Iron -- Chemical properties ,Iron -- Electric properties ,Iron -- Magnetic properties ,Nanotechnology -- Research ,Chemistry - Abstract
A prototype of magnetostatic coupling related to the growth and shape-ordering of iron nanostructures on Au single crystalline electrodes in an ionic liquid is presented. The study offers a new dimension to electrodeposition in ionic liquid, which could be applied to derive new magnetic film structures.
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- 2010
11. Supramolecular aggregation of inorganic molecules at Au(111) electrodes under a strong ionic atmosphere
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Yong-Chun Fu, Yu-Zhuan Su, De-Yin Wu, Jia-Wei Yan, Zhao-Xiong Xie, and Bing-Wei Mao
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Adsorption -- Analysis ,Antimony -- Chemical properties ,Antimony -- Electric properties ,Electrostatic interactions -- Analysis ,Gold -- Chemical properties ,Gold -- Electric properties ,Ionic solutions -- Chemical properties ,Methyl groups -- Chemical properties ,Methyl groups -- Electric properties ,Scanning tunneling microscopy -- Usage ,Chemistry - Abstract
The covalent-bound semimetal compound molecules, X[Cl.sub.3] (X = Sb, Bi) were considered as model systems of neutral inorganic molecules to study their self-assembly at electrochemical interfaces under a high ionic atmosphere. The findings for the dynamic behavior of the Sb[Cl.sub.3] assembly demonstrated that the initial stage of assembly followed a two-dimensional nucleation and growth mechanism and have a potential-dependent rate that is closely related to the surface mobility of the Sb[Cl.sub.3] clusters.
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- 2009
12. Extending the capability of STM break junction for conductance measurement of atomic-size nanowires: an electrochemical strategy
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Xiao-Shun Zhou, Yi-Min Wei, Ling Liu, Zhao-Bin Chen, Jing Tang, and Bing-Wei Mao
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Copper -- Electric properties ,Electrochemistry -- Analysis ,Iron -- Electric properties ,Nanotechnology -- Research ,Palladium -- Electric properties ,Scanning tunneling microscopy -- Usage ,Chemistry - Abstract
An electrochemical approach to extend the capability of STM break junction (STM-BJ) to create atomic-size nanowires of various metals is presented. The performance of the method is confirmed by the successful conductance measurements of the Cu, Pd Fe as well as soft metals such as Cd, and liquid metal Hg.
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- 2008
13. Supramolecular Aggregation of Inorganic Molecules at Au(111) Electrodes under a Strong Ionic Atmosphere
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Zhaoxiong Xie, Yongchun Fu, De-Yin Wu, Yu-Zhuan Su, Bing-Wei Mao, and Jiawei Yan
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Ionic atmosphere ,Inorganic chemistry ,Supramolecular chemistry ,General Chemistry ,Electrolyte ,Biochemistry ,Catalysis ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,chemistry ,Chemical engineering ,Ionic strength ,Ionic liquid ,Molecule ,Cyclic voltammetry ,Electrode potential - Abstract
Neutral inorganic molecules are generally weak in surface adsorption and intermolecular interactions. Self-assembly of such types of molecule would provide valuable information about various interactions. At electrochemical interfaces, the relative strength of these interactions may be modified through control of electrode potential and electrolyte, which may lead to the discovery of new structures and new phenomena. However, studies of this nature are as yet lacking. In this work, we consider the covalent-bound semimetal compound molecules, XCl(3) (X = Sb, Bi), as model systems of neutral inorganic molecules to investigate their self-assembly at electrochemical interfaces under a high ionic atmosphere. To fulfill such investigations, in situ STM and cyclic voltammetry are employed, and comparative experiments are performed on Au(111) in ionic liquids as well as aqueous solutions with high ionic strength. In the room temperature ionic liquid of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIBF(4)), potential-dependent partial charge transfer between the Au surface and XCl(3) molecules creates a molecule-surface interaction and provides the driving force for adsorption of the molecules. Supramolecular aggregations of adsorbed XCl(3) are promoted through chlorine-based short-range intermolecular correlation under crystallographic constraint, while repulsive Coulombic interactions created between the partially charged aggregations facilitate their long-range ordering. For SbCl(3) molecules, hexagonally arranged 6- or 7-member clusters are formed at 0.08 to -0.2 V (vs Pt), which assemble into a secondary ( radical31 x radical31)R8.9 degrees structure. For BiCl(3) molecules, both the 6-membered hexagonal and 3-membered trigonal clusters are formed in the narrow potential range -0.3 to -0.35 V, and are also arranged into an ordered secondary structure. Comparative studies were performed with SbCl(3) in concentrated aqueous solutions containing 2 M HCl to simulate the strong ionic strength of the ionic liquid. Almost identical 6-/7-member clusters and long-range ( radical31 x radical31)R8.9 degrees structure are observed at -0.1 V, demonstrating the crucial role of strong ionic strength in such supramolecular aggregations. However, such supramolecular structures are modified and eventually destroyed as ionic strength is further increased by addition of NaClO(4) up to 6 M. The destructive changes of the supramolecular structures are attributed to the alteration of ion distribution in the double layer from cation-rich to anion-rich at increasing NaClO(4) concentration. This modifies and eventually breaks the balance of intermolecular and molecule-electrolyte interactions. Finally, the dynamic behavior of the SbCl(3) assembly is investigated down to molecular level. It has been demonstrated that the initial stage of assembly follows a two-dimensional nucleation and growth mechanism and has a potential-dependent rate that is closely related to the surface mobility of the SbCl(3) clusters. There is a probability that clusters can escape from an existing assembly domain or insert into a vacancy in such a domain while they can also relax with central or ring members in a dynamic fashion. These phenomena indirectly reflect the dynamic properties of cations from electrolytes at the interface. The rich information contained in the self-assembly behavior of SbCl(3) and BiCl(3) demonstrates that neutral inorganic molecules can be employed for fundamental studies of a variety of interesting issues, especially the interplay of various interfacial interactions.
- Published
- 2009
14. Surface-enhanced Raman scattering in the ultraviolet spectral region: UV-SERS on rhodium and ruthenium electrodes
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Ren, Bin, Xu-Feng Lin, Zhi-Lin Yang, Guo-Kun Liu, Aroca, Ricardo F., Zhong-Qun Tian, and Bing-Wei Mao
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Raman effect -- Research ,Ruthenium -- Research ,Ruthenium -- Optical properties ,Rhodium -- Research ,Rhodium -- Optical properties ,Chemistry - Abstract
The first ultraviolet surface-enhanced Raman scattering (UVSERS) spectra of molecules adsorbed onto rough rhodium (Rh) and ruthenium (Ru) metal surfaces are reported. Findings show that UV-SERS, like SERS in the visible, with its unique surface-selectivity has a great potential in UV surface and interfacial science to study a wide variety of adsorbed molecular systems on metal nanoparticles.
- Published
- 2003
15. Extending the Capability of STM Break Junction for Conductance Measurement of Atomic-Size Nanowires: An Electrochemical Strategy
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Bing-Wei Mao, Zhao-Bin Chen, Yi-Min Wei, Xiao-Shun Zhou, Ling Liu, and Jing Tang
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Chemistry ,Nanowire ,Conductance ,Nanotechnology ,General Chemistry ,Substrate (electronics) ,Biochemistry ,Catalysis ,Metal ,Colloid and Surface Chemistry ,Atomic radius ,visual_art ,Electrode ,visual_art.visual_art_medium ,Thin film ,Break junction - Abstract
The STM break junction (STM-BJ) and mechanically controllable break junction (MCBJ) are the two most widely applied techniques to fabricate atomic-size nanowires for conductance measurement. However, the drawbacks of the mechanical crashing between the two electrodes of the same material in these techniques hamper its capability of application in view of the variety of metals as well as the environment to perform the measurements. In this paper, we present an electrochemical strategy for STM-BJ by establishing a chemically well-defined metallic contact through a jump-to-contact mechanism between the tip and substrate of dissimilar metals, wherein the tip is in situ and electrochemically deposited with a thin film of a foreign metal of interest. The feasibility of the approach is demonstrated by taking Cu as a model system, followed by generalizing to Pd and Fe for which the conductance has been found otherwise difficult to measure at room temperature. The preferential point-contact conductance at 1, 0.9, and 0.86 G0 was measured for Cu, Pd, and Fe, respectively. The strategy present in this work not only extends the capability of STM-BJ to create a variety of metal nanowires including magnetic nanowires for further investigations but also provides opportunities to construct metal-molecule-metal junctions with a variety of choices of metals in the junctions.
- Published
- 2008
16. Growth and shape-ordering of iron nanostructures on Au single crystalline electrodes in an ionic liquid: a paradigm of magnetostatic coupling
- Author
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Jiawei Yan, Zhan Shi, Yongchun Fu, Bing-Wei Mao, Yi-Min Wei, Zhaoxiong Xie, De-Yin Wu, and Chunfeng Sun
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Nanostructure ,Condensed matter physics ,Chemistry ,General Chemistry ,Antiparallel (biochemistry) ,Biochemistry ,Catalysis ,Magnetic flux ,Crystallography ,Magnetization ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,Ionic liquid ,Electrode ,Coupling (piping) ,Nanoscopic scale - Abstract
Fe electrodeposition on Au(111) and Au(100) in BMIBF(4) ionic liquid is found to form hitherto unreported shape-ordered nanoscale morphologies of pseudorods and pseudosquare rings, respectively, both composed of grains of 4-7 nm. The manner of growth of the square rings is a ring-on-ring structure with enlarging side length and slightly protruding four corners. The generality of the growth mechanism is verified by the formation of almost exactly the same shape-ordered Fe nanostructures on Pt, i.e., pseudorod structure on Pt(111) and pseudosquare rings Pt(100). These structures are explained within the framework of magnetostatic interactions of spontaneously magnetized grains under crystallographic constraint of the substrate surface, which result in an antiparallel arrangement in magnetization of the grains at pseudorods and magnetic flux closure at the pseudosquare rings. The closed magnetic flux further leads to magnetic field-enhanced growth at the four corners and the outer peripheries of the pseudosquare rings. The observed shape-ordering of the Fe thin film serves as a paradigm of magnetostatic coupling, in which the roles of ionic liquid as surfactant and magnetic media may not be underestimated. The present work adds a new dimension to electrodeposition in ionic liquid, by which new magnetic film structures may be expected.
- Published
- 2010
17. Mobility and Reactivity of Oxygen Adspecies on Platinum Surface.
- Author
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Wei Wang, Jie Zhang, Fangfang Wang, Bing-Wei Mao, Dongping Zhan, and Zhong-Qun Tian
- Published
- 2016
- Full Text
- View/download PDF
18. Giant Single-Molecule Anisotropic Magnetoresistance at Room Temperature.
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Ji-Jun Li, Mei-Lin Bai, Zhao-Bin Chen, Xiao-Shun Zhou, Zhan Shi, Meng Zhang, Song-Yuan Ding, Shi-Min Hou, Schwarzacher, Walther, Nichols, Richard J., and Bing-Wei Mao
- Published
- 2015
- Full Text
- View/download PDF
19. Resolving Fine Structures of the Electric Double Layer of Electrochemical Interfaces in Ionic Liquids with an AFM Tip Modification Strategy.
- Author
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Yun-Xin Zhong, Jia-Wei Yan, Mian-Gang Li, Xiao Zhang, Ding-Wen He, and Bing-Wei Mao
- Published
- 2014
- Full Text
- View/download PDF
20. Do Molecular Conductances Correlate with Electrochemical Rate Constants? Experimental Insights.
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Xiao-Shun Zhou, Ling Liu, Fortgang, Philippe, Lefevre, Anne-Sophie, Serra-Muns, Anna, Raouafi, Noureddine, Amatore, Christian, Bing-Wei Mao, Maisonhaute, Emmanuel, and Schollhorn, Bernd
- Published
- 2011
- Full Text
- View/download PDF
21. Surface-Enhanced Raman Scattering in the Ultraviolet Spectral Region: UV-SERS on Rhodium and Ruthenium Electrodes.
- Author
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Bin Ren, Xu-Feng Lin, Zhi-Lin Yang, Guo-Kun Liu, Aroca, Ricardo F., Bing-Wei Mao, and Zhong-Qun Tian
- Subjects
- *
RAMAN effect , *ULTRAVIOLET spectra , *MOLECULES , *SURFACE chemistry , *METALLIC surfaces - Abstract
Describes ultraviolet surface-enhanced Raman scattering (UV-SERS) spectra of molecules adsorbed onto rough rhodium (Rh) and ruthenium metal surfaces. Technique for roughening Rh surfaces; Estimation of the surface enhancement factor; Differences between UV-SERS and resonance Raman scattering.
- Published
- 2003
- Full Text
- View/download PDF
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