A5101418172- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advancements in Battery Materials
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Chalcogenide Semiconductor Thin Films
- Aerodynamics and Fluid Dynamics Research
- Catalysis for Biomass Conversion
- Mine drainage and remediation techniques
- Structural Load-Bearing Analysis
- Electrochemical Analysis and Applications
- Polyoxometalates: Synthesis and Applications
- Fluid Dynamics and Turbulent Flows
- Fire effects on concrete materials
- Financial Markets and Investment Strategies
- CO2 Reduction Techniques and Catalysts
- Monetary Policy and Economic Impact
- Catalysis and Hydrodesulfurization Studies
- Ammonia Synthesis and Nitrogen Reduction
- Perovskite Materials and Applications
- Carbon dioxide utilization in catalysis
Hunan University
2021-2025
Wuhan University of Technology
2025
Hubei University of Automotive Technology
2025
Ministry of Education
2024
Institute of Process Engineering
2022
University of Chinese Academy of Sciences
2022
Wuhan University of Science and Technology
2019
Abstract Electrochemical H 2 O production through the 2‐electron oxygen reduction reaction (ORR) is a promising alternative to energy‐intensive anthraquinone process. Herein, by simultaneously regulating coordination number of atomically dispersed cobalt sites and nearby functional groups via one‐step microwave thermal shock, highly selective active CoNC electrocatalyst for electrosynthesis that exhibits high selectivity (91.3%), outstanding mass activity (44.4 A g −1 at 0.65 V), large...
Rationally designing efficient and robust catalysts for the oxygen evolution reaction (OER) is increasingly vital energy conversion technologies. Herein, we develop a core–shell electrocatalyst consisting of an amorphous/crystalline heterophase NiFe alloy encapsulated by ultrathin graphene layers (a/c-NiFe-G) via rapid microwave thermal shock strategy. The heterostructure generates enriched active sites with high intrinsic activity, while coatings serve as electron transport pathways...
Abstract Metal‐ and nitrogen‐doped carbon (M–N–C) materials as a unique class of single‐atom catalysts (SACs) have increasingly attracted attention the replacement platinum for hydrogen evolution reaction (HER); however, their employment HER electrodes at high current densities industrial level remains grand challenge. Herein, an aligned porous film embedded with Co–N–C sites exceptional activity stability is designed. Within film, atomic CoN x moieties exhibit intrinsic activity, while...
Abstract Selective two-electron (2e − ) oxygen reduction reaction (ORR) offers great opportunities for hydrogen peroxide (H 2 O electrosynthesis and its widespread employment depends on identifying cost-effective catalysts with high activity selectivity. Main-group metal nitrogen coordinated carbons (M-N-Cs) are promising but remain largely underexplored due to the low metal-atom density lack of understanding in structure-property correlation. Here, we report using a nanoarchitectured Sb S 3...
Direct seawater electrolysis is a promising technology for massive green hydrogen production but limited by the lack of durable and efficient electrocatalysts toward oxygen evolution reaction (OER). Herein, we develop core-shell nanoreactor as high-performance OER catalyst consisting NiFe alloys encapsulated within defective graphene layers (NiFe@DG) facile microwave shocking strategy. This needs overpotentials merely 218 276 mV in alkalized to deliver current densities 10 100 mA cm-2,...
The selective oxygen reduction reaction (ORR) is important for various energy conversion processes such as the fuel cells and metal-air batteries 4e
The development of strategies for tuning the electronic structure metal sites in single-atom catalysts (SACs) is key to optimizing their activity. Herein, we report that iodine doping within carbon matrix a cobalt–nitrogen–carbon (Co–N–C) catalyst can effectively modulate its and catalytic activity toward hydrogen evolution reaction (HER). iodine-doped Co–N–C shows exceptional HER acid with an overpotential merely 52 mV at 10 mA cm–2, small Tafel slope 56.1 dec–1, making it among best SACs...
Graphene-supported single-atom catalysts (SACs) are promising alternatives to precious metals for catalyzing the technologically important hydrogen evolution reaction (HER), but their performances limited by low intrinsic activity and insufficient mass transport. Herein, a highly HER-active graphene-supported Co-N-C SAC is reported with unique design features in morphology of substrate microenvironment single metal sites: i) crumpled scrolled graphene circumvents issues encountered stacked...
Metal- and nitrogen-doped nanocarbons (M-N-Cs) are promising alternatives to precious metals for catalyzing electrochemical energy conversion processes. However, M-N-Cs synthesized by high-temperature pyrolysis frequently suffer from compositional heterogeneity with the simultaneous presence of atomically dispersed M-Nx sites crystalline metal nanoparticles (NPs), which hinders identification active rational optimization in performance. Herein, a universal efficient strategy is reported...
Abstract The cobalt‐nitrogen‐carbon (Co─N─C) single‐atom catalysts (SACs) are promising alternatives to precious metals for catalyzing the hydrogen evolution reaction (HER) and their activity is highly dependent on coordination environments of metal centers. Herein, a NaHCO 3 etching strategy developed introduce abundant in‐plane pores within carbon substrates that further enable construction low‐coordinated asymmetric Co─N sites with nearby vacancy defects in Co─N─C catalyst. This catalyst...
Site density and turnover frequency are the two fundamental kinetic descriptors that determine oxygen reduction activity of iron-nitrogen-carbon (Fe-N-C) catalysts. However, it remains a grand challenge to simultaneously optimize these parameters in single Fe-N-C catalyst. Here we show treating typical catalyst with ammonium iodine (NH4I) vapor via one-step chemical deposition process not only increases surface area porosity (and thus enhanced exposure active sites) etching effect in-situ...
Abstract Gas‐evolving reactions (GERs) are important in many electrochemical energy conversion technologies and chemical industries. The operation of GERs at high current densities is critical for their industrial implementation but remains challenging as it poses stringent requirements on the electrodes terms reaction kinetics, mass transfer, electron transport. Here general rational design self‐standing carbon with vertically aligned porous channels, appropriate pore size distribution,...
Lignin, as a byproduct from the paper industry and biorefineries, has been used renewable alternative to conventional catalyst for future industrial application. However, due complex structure of lignin, its application considerably restricted. Herein, three types lignin (soda kraft enzymatic hydrolysis lignin) were prepared illuminate real impact interunit linkages hydroxyl groups on catalytic activity cycloaddition reaction. Among these lignin/cocatalyst systems, soda lignin/KI system...
Abstract Atomic metal‐nitrogen‐carbon catalysts (M‐N‐Cs) are promising electrocatalysts for the two‐electron oxygen reduction reaction (2e − ORR) green production of H 2 O . However, conventional synthetic methods M‐N‐Cs typically suffer from prolonged possessing time and high energy consumption. Herein, a flash light irradiation‐assisted transient pyrolysis strategy is reported rapid facile synthesis Co‐N‐C catalyst consisting atomic Co‐N 4 sites supported on graphene. The resultant highly...
Abstract Uncontrolled dendrite growth leads to poor cycling performance and potential safety hazards in high‐energy metal resource‐rich (Na/Mg) batteries. Herein, a polar Nylon 6‐cellulose acetate (NCA) separator is designed regulate electrolyte solvation structure electrode–electrolyte interface for dendrite‐free Na/Mg The different dipole interactions between separator's groups (CONH, COOR, ROR, OH) anhydride/ether from ester/ether solvents ensure the universality various electrolytes. In...