A5037963525- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- CO2 Reduction Techniques and Catalysts
- Advanced Photocatalysis Techniques
- Catalysis for Biomass Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Electrochemical Analysis and Applications
- Supercapacitor Materials and Fabrication
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Fuel Cells and Related Materials
- Catalysis and Hydrodesulfurization Studies
- Nanomaterials for catalytic reactions
- Radical Photochemical Reactions
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Copper-based nanomaterials and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Ionic liquids properties and applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Hydrogen Storage and Materials
- High Entropy Alloys Studies
- Carbon dioxide utilization in catalysis
- Layered Double Hydroxides Synthesis and Applications
- Caching and Content Delivery
Hunan University
2015-2024
State Key Laboratory of Chemobiosensing and Chemometrics
2015-2024
Anhui Normal University
2024
Ministry of Education
2023
Jishou University
2022-2023
Shenzhen University
2019-2022
Affiliated Hospital of Nantong University
2020
Nantong University
2020
Changsha University
2019
Beijing University of Chemical Technology
2017-2018
The exact role of a defect structure on transition metal compounds for electrocatalytic oxygen evolution reaction (OER), which is very dynamic process, remains unclear. Studying the structure-activity relationship defective electrocatalysts under operando conditions crucial understanding their intrinsic mechanism and behavior sites. Co3O4 with rich vacancy (VO) has been reported to efficiently catalyze OER. Herein, we constructed pure spinel VO-rich as catalyst models study investigate sites...
An earth-abundant and highly efficient electrocatalyst is essential for oxygen evolution reaction (OER) due to its poor kinetics. Layered double hydroxide (LDH)-based nanomaterials are considered as promising electrocatalysts OER. However, the stacking structure of LDHs limits exposure active sites. Therefore, exfoliation necessary expose more In addition, defect engineering proved be an strategy enhance performance OER electrocatalysts. For first time, this study prepares ultrathin CoFe...
Carbon-based metal-free electrocatalysts for the oxygen reduction reaction (ORR) in alkaline medium have been extensively investigated with aim of replacing commercially available, but precious platinum-based catalysts. For proper design carbon-based ORR, it would be interesting to identify active sites electrocatalyst. The ORR was now studied an air-saturated electrolyte solution droplet (diameter ca. 15 μm), which deposited at a specified position either on edge or basal plane highly...
Heterogeneous catalysis plays an important role in modern industry. Exploring catalysts with high efficiency, low-cost, and stability is issue for the research of heterogeneous catalysis. In recent years, researchers have prepared a variety defective found that defects effect on their catalytic activity. However, relationship between activity remains to be clarified. this Review, three aspects including recognition, understanding, utilization defect chemistry been proposed. Based progress,...
The design of high-efficiency non-noble bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen (HER) is paramount water splitting technologies associated renewable energy systems. Spinel-structured oxides with rich redox properties can serve as alternative low-cost OER but poor HER performance. Here, zirconium regulation in 3D CoFe2 O4 (CoFeZr oxides) nanosheets on nickel foam, a novel strategy inducing bifunctionality toward overall splitting, reported. It found that...
This paper reports a hydrothermal preparation of NiO–graphene sheet-on-sheet and nanoparticle-on-sheet nanostructures. The nanocomposite showed highly reversible large capacities at common current 0.1 C good rate capabilities. A initial charge capacity 1056 mAh/g was observed for the composite C, which decreased by only 2.4% to 1031 after 40 cycles discharge charge. cycling performance is better than that NiO nanosheets, graphene NiO-graphene nanoparticle-on-sheet, previous carbon/carbon...
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...
Abstract The electrosynthesis from 5‐hydroxymethylfurfural (HMF) is considered a green strategy to achieve biomass‐derived high‐value chemicals. As the molecular structure of HMF relatively complicated, understanding adsorption/catalysis behavior on electrocatalysts vital for biomass‐based electrosynthesis. electrocatalysis can be modulated by tuning adsorption energy reactive molecules. In this work, spinel oxide, Co 3 O 4 discovered. Correspondingly, successfully tuned decorating with...
The electrooxidation of 5-hydroxymethylfurfural (HMF) offers a promising green route to attain high-value chemicals from biomass. HMF reaction (HMFOR) is complicated process involving the combined adsorption and coupling organic molecules OH- on electrode surface. An in-depth understanding these sites processes electrocatalysts fundamentally important. Herein, behavior , role oxygen vacancy Co3 O4 are initially unraveled. Correspondingly, instead competitive metal sites, it observed that can...
Co-based spinel oxides, which are of mixing valences with the presence both Co2+ and Co3+ at different atom locations, considered as promising catalysts for electrochemical oxidation 5-hydroxymethylfurfural (HMF). Identifying role each site in electroxidation HMF is critical to design advanced electrocatalysts. In this work, we found that Co2+Td Co3 O4 capable chemical adsorption acidic organic molecules, Co3+Oh play a decisive oxidation. Thereafter, Cu2+ was introduced oxides enhance...
A novel low temperature strategy was developed for preparing high entropy oxide, which is conducive to solve the bottlenecks encountered by traditional methods and broaden their application areas.
Single-atom catalysts (SACs) have enormous significance in heterogeneous catalysis.
High-entropy oxides (HEOs), a new concept of entropy stabilization, exhibit unique structures and fascinating properties, are thus important class materials with significant technological potential. However, the conventional high-temperature synthesis techniques tend to afford micron-scale HEOs low surface area, catalytic activity available is still far from satisfactory because their limited exposed active sites poor intrinsic activity. Here we report low-temperature plasma strategy for...
Abstract Nickel hydroxide (Ni(OH) 2 ) is a promising electrocatalyst for the 5‐hydroxymethylfurfural oxidation reaction (HMFOR) and dehydronated intermediates Ni(OH)O species are proved to be active sites HMFOR. In this study, Ni(OH) modified by platinum adjust electronic structure current density of HMFOR improves 8.2 times at Pt/Ni(OH) electrode compared with that on electrode. Operando methods reveal introduction Pt optimized redox property accelerate formation during catalytic process....
Abstract The production of ammonia from N 2 molecules under ambient conditions [electro (photo) chemical reduction] is one the most attractive topics in energy‐related field due to its unique advantages and great potentials. Recently, various catalysts have been explored show certain activities nitrogen reduction reactions (NRRs) at room temperature atmospheric pressure. To further improve catalytic activity increase selectivity, should be rationally designed introduce extra active sites for...
Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) provides an efficient way to obtain high-value-added biomass-derived chemicals. Compared with other transition metal oxides, CuO exhibits poor oxygen evolution reaction performance, leading high Faraday efficiency for HMF oxidation. However, the weak adsorption and activation ability OH- species restricts its further development. Herein, CuO-PdO heterogeneous interface is successfully constructed, resulting in advanced...