A5100414758- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Fuel Cells and Related Materials
- ZnO doping and properties
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- CO2 Reduction Techniques and Catalysts
- Ammonia Synthesis and Nitrogen Reduction
- Electrochemical Analysis and Applications
- Ionic liquids properties and applications
- Gas Sensing Nanomaterials and Sensors
- Hydrocarbon exploration and reservoir analysis
- Conducting polymers and applications
- Advancements in Battery Materials
- Quantum Dots Synthesis And Properties
- Geological and Geophysical Studies
- Transition Metal Oxide Nanomaterials
- Metal-Organic Frameworks: Synthesis and Applications
- Geological formations and processes
- Advancements in Solid Oxide Fuel Cells
- Nanomaterials for catalytic reactions
- Magnetic and transport properties of perovskites and related materials
- Advanced Battery Materials and Technologies
- Advanced Sensor and Energy Harvesting Materials
National Synchrotron Radiation Laboratory
2016-2025
University of Science and Technology of China
2016-2025
Chinese PLA General Hospital
2023-2025
Xi'an University of Science and Technology
2022-2025
Fujian Agriculture and Forestry University
2023-2025
Chinese Academy of Sciences
2013-2025
Chengdu Institute of Biology
2023-2025
Affiliated Hospital of Taishan Medical University
2015-2025
Shandong First Medical University
2020-2025
Nanjing Medical University
2025
According to Yang Shao-Horn's principle, CoSe2 is a promising candidate as an efficient, affordable, and sustainable alternative electrocatalyst for the oxygen evolution reaction, owing its well-suited electronic configuration of Co ions. However, catalytic efficiency pure still far below what expected, because poor active site exposure yield. Herein, we successfully overcome disadvantage insufficient sites in bulk by reducing thickness into atomic scale rather than any additional...
Abstract Atomic interface regulation is thought to be an efficient method adjust the performance of single atom catalysts. Herein, a practical strategy was reported rationally design copper atoms coordinated with both sulfur and nitrogen in metal-organic framework derived hierarchically porous carbon (S-Cu-ISA/SNC). The atomic configuration site S-Cu-ISA/SNC detected unsymmetrically arranged Cu-S 1 N 3 moiety. catalyst exhibits excellent oxygen reduction reaction activity half-wave potential...
Outstanding magnetic properties are highly desired for two-dimensional ultrathin semiconductor nanosheets. Here, we propose a phase incorporation strategy to induce robust room-temperature ferromagnetism in nonmagnetic MoS2 semiconductor. A two-step hydrothermal method was used intentionally introduce sulfur vacancies 2H-MoS2 nanosheet host, which prompts the transformation of surrounding local lattice into trigonal (1T-MoS2) phase. 25% 1T-MoS2 nanosheets can enhance electron carrier...
Direct and efficient photocatalytic water splitting is critical for sustainable conversion storage of renewable solar energy. Here, we propose a conceptual design two-dimensional C3N4-based in-plane heterostructure to achieve fast spatial transfer photoexcited electrons realizing highly spontaneous overall splitting. This unique plane heterostructural carbon ring (Cring)–C3N4 nanosheet can synchronously expedite electron–hole pair separation promote photoelectron transport through the local...
Endowing transition-metal oxide electrocatalysts with high water oxidation activity is greatly desired for production of clean and sustainable chemical fuels. Here, we present an atomically thin cobalt oxyhydroxide (γ-CoOOH) nanosheet as efficient electrocatalyst oxidation. The 1.4 nm thick γ-CoOOH can effectively oxidize extraordinarily large mass activities 66.6 A g(-1), 20 times higher than that bulk 2.4 the benchmarking IrO2 electrocatalyst. Experimental characterizations...
Manipulation at the atomic level: Freestanding SnS2 single-layers with three atom thickness were synthesized through an exfoliation strategy (see picture). The have increased density of states valence band edge. A photoelectrode made from this material shows a visible-light conversion efficiency 38.7 % that is superior to most existing reports. Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset....
Abstract Limited by the relatively sluggish charge‐carrier separation in semiconductors, photocatalytic performance is still far below what expected. Herein, a model of ZnIn 2 S 4 (ZIS) nanosheets with oxygen doping put forward to obtain in‐depth understanding role that atoms play photocatalysis. It shows enhanced activity compared pristine ZIS. The electron dynamics analyzed ultrafast transient absorption spectroscopy reveals average recovery lifetime photoexcited electrons increased 1.53...
Abstract An active and stable photocatalyst to directly split water is desirable for solar‐energy conversion. However, it difficult accomplish overall splitting without sacrificial electron donors. Herein, we demonstrate a strategy via constructing single site simultaneously promote charge separation catalytic activity robust splitting. A Co 1 ‐P 4 confined on g‐C 3 N nanosheets was prepared by facile phosphidation method, identified microscopy X‐ray absorption spectroscopy. This...
The hydrophobic internal cavity and hydrophilic external surface of cyclodextrins (CDs) render promising electrochemical applications. Here, we report a comparative mechanistic study on the use CD molecules (α-, β-, γ-CD) as electrolyte additives for rechargeable Zn batteries. addition α-CD in aqueous ZnSO4 solution reduces nucleation overpotential activation energy plating suppresses H2 generation. Computational, spectroscopic, studies reveal that preferentially adsorbs parallel via...
Abstract The nitrogenous nucleophile electrooxidation reaction (NOR) plays a vital role in the degradation and transformation of available nitrogen. Focusing on NOR mediated by β‐Ni(OH) 2 electrode, we decipher mechanism nucleophile. For two‐step NOR, proton‐coupled electron transfer (PCET) is bridge between electrocatalytic dehydrogenation from to β‐Ni(OH)O, spontaneous dehydrogenative oxidation reaction. This theory can give good explanation for hydrazine primary amine reactions, but...
Electrocatalytic urea synthesis emerged as the promising alternative of Haber-Bosch process and industrial synthetic protocol. Here, we report that a diatomic catalyst with bonded Fe-Ni pairs can significantly improve efficiency electrochemical synthesis. Compared isolated single-atom catalysts, act efficient sites for coordinated adsorption activation multiple reactants, enhancing crucial C-N coupling thermodynamically kinetically. The performance up to an order magnitude higher than those...
Thermoelectric materials can realize significant energy savings by generating electricity from untapped waste heat. However, the coupling of thermoelectric parameters unfortunately limits their efficiency and practical applications. Here, a single-layer-based (SLB) composite fabricated atomically thick single layers was proposed to optimize fully. Freestanding five-atom-thick Bi2Se3 were first synthesized via scalable interaction/exfoliation strategy. As revealed X-ray absorption fine...
Tuning the metal insulator transition (MIT) behavior of VO2 film through interfacial strain is effective for practical applications. However, mechanism strain-modulated MIT still under debate. Here we directly record dynamics ultrathin on TiO2 substrate and reveal intrinsic modulation process by means synchrotron radiation first-principles calculations. It observed that obtained films can be modulated continuously via strain. The relationship between phase temperature evolution established...
Uncovering the dynamics of active sites in working conditions is crucial to realizing increased activity, enhanced stability and reduced cost oxygen evolution reaction (OER) electrocatalysts proton exchange membrane electrolytes. Herein, we identify at atomic level potential-driven dynamic-coupling on atomically dispersed hetero-nitrogen-configured Ir (AD-HN-Ir) OER successfully provide electrocatalyst with ultrahigh electrochemical acidic activity. Using in-situ synchrotron radiation...
Understanding the mechanism of W-doping induced reduction critical temperature (TC) for VO2 metal-insulator transition (MIT) is crucial both fundamental study and technological application. Here, using synchrotron radiation X-ray absorption spectroscopy combined with first-principles calculations, we unveil atomic structure evolutions W dopant its role in tailoring TC MIT. We find that local around atom intrinsically symmetric a tetragonal-like structure, exhibiting concentration-dependent...
Electrocatalytic CN coupling between carbon dioxide and nitrate has emerged to meet the comprehensive demands of footprint closing, valorization waste, sustainable manufacture urea. However, identification catalytic active sites design efficient electrocatalysts remain a challenge. Herein, synthesis urea catalyzed by copper single atoms decorated on CeO2 support (denoted as Cu1 -CeO2 ) is reported. The catalyst exhibits an average yield rate 52.84 mmol h-1 gcat.-1 at -1.6 V versus...
Photocatalytic two-electron oxygen reduction to produce high-value hydrogen peroxide (H2O2) is gaining popularity as a promising avenue of research. However, structural evolution mechanisms catalytically active sites in the entire photosynthetic H2O2 system remains unclear and seriously hinders development highly-active stable photocatalysts. Herein, we report high-loading Ni single-atom photocatalyst for efficient synthesis pure water, achieving an apparent quantum yield 10.9% at 420 nm...
The structural dynamics of the solid-liquid interfaces (SLEIs) determines chemistry in all electrochemical processes. Here, by combining multiple operando synchrotron spectroscopies, we identify at atomic level a general evolution single-atom Ni SLEIs into near-free atom state oxygen reduction reaction (ORR). We uncover that tends to be dynamically released from nitrogen-carbon substrate and then forms near-free, isolated-zigzag active site (Ni1(2-δ)+N2) during reaction. This Ni1(2-δ)+N2...