A5087330509- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Minerals Flotation and Separation Techniques
- Spectroscopy and Quantum Chemical Studies
- Ammonia Synthesis and Nitrogen Reduction
- Catalysis and Hydrodesulfurization Studies
- Advancements in Solid Oxide Fuel Cells
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Mineral Processing and Grinding
- Catalysts for Methane Reforming
- High Entropy Alloys Studies
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- Catalysis for Biomass Conversion
- Nanopore and Nanochannel Transport Studies
- Metallurgical Processes and Thermodynamics
- Layered Double Hydroxides Synthesis and Applications
- Advanced Memory and Neural Computing
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
Hunan University
2018-2025
Karlsruhe Institute of Technology
2025
State Key Laboratory of Chemobiosensing and Chemometrics
2018-2024
Ministry of Education
2024
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...
Water splitting has been considered as one of the most prospective technologies for enhancing sustainable output hydrogen and reducing release carbon dioxide in 21st century. Much attention paid to designing optimal electrocatalysts water splitting, which includes evolution reaction (HER) oxygen (OER). To date, effective are still Pt based Ir or Ru group noble metal materials, can significantly improve current density with presence a low overpotential. As alternatives metals...
Due to the robust oxidation conditions in strong acid oxygen evolution reaction (OER), developing an OER electrocatalyst with high efficiency remains challenging polymer electrolyte membrane (PEM) water electrolyzer. Recent theoretical research suggested that reducing coordination number of Ir-O is feasible reduce energy barrier rate-determination step, potentially accelerating OER. Inspired by this, we experimentally verified number's role at model catalysts, then synthesized...
Porous materials are widely studied in many applications due to their high surface area and rich edge sites. Here, for the first time, we reported a simple convenient method synthesize porous nanosheets of metal hydroxides by selectively etching amphoteric Al CoAl layered double on carbon paper (CoAl-LDH/CP), then convert them into cobalt phosphide (p-CoP/CP) via low temperature phosphidation. In contrast pristine (CoP/CP), p-CoP/CP has lower overpotential, Tafel slope charge transfer...
Abstract 2,5‐Furandicarboxylic acid was obtained from the electrooxidation of 5‐hydroxymethylfurfural (HMF) with non‐noble metal‐based catalysts. Moreover, combining biomass oxidation hydrogen evolution reaction (HER) increased energy conversion efficiency an electrolyzer and also generated value‐added products at both electrodes. Here, pathway on surface a carbon‐coupled nickel nitride nanosheet (Ni 3 N@C) electrode evaluated by surface‐selective vibrational spectroscopy using sum frequency...
Hydrogen production from methanol represents an energy-sustainable way to produce ethanol, but it normally results in heavy CO2 emissions. The selective conversion of into H2 and valuable chemical feedstocks offers a promising strategy; however, is limited by the harsh operating conditions low efficiency. Herein, we realize efficient high-purity CO coupling thermocatalytic dehydrogenation with electrocatalytic hydrogen oxidation on bifunctional Ru/C catalyst. Electrocatalysis enables...
Abstract 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...
The dehydrogenation reaction of bioderived ethanol is particular interest for the synthesis fuels and value-added chemicals. However, this historically suffered from high energy consumption (>260 °C or >0.8 V) low efficiency. Herein, efficient conversion alcohol to hydrogen aldehyde achieved by integrating thermal with electrochemical transfer at temperature (120 °C) voltage (0.06 V), utilizing a bifunctional catalyst (Ru/C) both thermal-catalytic electrocatalytic activities. Specifically,...
The durability degradation during stack-operating conditions seriously deteriorates the lifetime and performance of fuel cell. To alleviate rapid potential rise degradation, an anode design is proposed to match working temperature high-temperature proton exchange membrane cells (HT-PEMFCs) with release hydrogen from palladium. result significantly enhanced oxidation reaction (HOR) activity Pd superior anode. Furthermore, as buffer oxygen absorbent layer in can provide additional situ absorb...
Abstract High‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) demonstrate crude hydrogen can be a cost‐effective source. However, the performance of HT‐PEMFCs is hindered by challenges such as high‐concentration CO poisoning and preferential adsorption H 3 PO 4 on electrocatalysts. This study explores Pt group metals anode catalysts, specifically focusing oxidation reaction (HOR) activity, tolerance, tolerance under operational conditions in HT‐PEMFCs. The results reveal that all...
Polyelectrolyte membrane fuel cell (PEMFC) is a kind of clean energy conversion device with great potential. The development related hydrogen-oxygen catalysts still one the key issues. Single atoms have high surface areas but weak metal synergies. Nanoparticles good synergies large area. Cluster materials are in between, as research moves from single to nanoclusters, relationship between structure and reaction properties becomes complex. Focusing on cells' hydrogen oxidation oxygen reduction...
The regulation of the ion selectivity by electric field and association on Li+ carboxyl functionalized graphene nanopores are investigated molecular dynamics simulation. Carboxylate sub-2 nm exhibit excellent under 1.0 V nm-1 . results show that inspired may be a key factor affecting nanopores. Mg2+ Cl- can promoted obviously near migrating retarded stable clusters formed degree with is relatively low disassociation cluster easier so more easily pass through These gain insight into effect...
Abstract High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) play an important role in the future hydrogen application system. However, there are still many issues of HT‐PEMFCs, especially on performance and durability, to be solved. Massive platinum usage is one most intractable issues. Herein, iron phosphide platinum‐based catalyst introduced for better activity oxidation reaction (HOR). This shows a similar HOR with commercial while only one‐eighth noble metal used anode...
Abstract Methanol steam reforming (MSR) provides an alternative way for efficient production and safe transportation of hydrogen but requires harsh conditions complicated purification processes. In this work, electrochemical‐assisted MSR reaction pure H 2 at lower temperature (~140 °C) is developed by coupling the electrocatalysis into in a polymer electrolyte membrane electrolysis reactor. By electrochemically assisted, two critical steps including methanol dehydrogenation water‐gas shift...