A5090823884- CO2 Reduction Techniques and Catalysts
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Ionic liquids properties and applications
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Electrochemical Analysis and Applications
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Catalysis and Oxidation Reactions
- Ammonia Synthesis and Nitrogen Reduction
- Carbon dioxide utilization in catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Chemical Synthesis and Characterization
- Supercapacitor Materials and Fabrication
- Burn Injury Management and Outcomes
- Mesenchymal stem cell research
- Advancements in Solid Oxide Fuel Cells
- Heme Oxygenase-1 and Carbon Monoxide
- Molecular Junctions and Nanostructures
- Electrochemical sensors and biosensors
Hunan University
2019-2025
Tianma Microelectronics (China)
2024
Lanzhou Institute of Chemical Physics
2016-2019
Chinese Academy of Sciences
2016-2019
University of Chinese Academy of Sciences
2016-2017
State Key Laboratory of Solid Lubrication
2016
Lanzhou City University
2016
Abstract Manipulating the in‐plane defects of metal–nitrogen–carbon catalysts to regulate electroreduction reaction CO 2 (CO RR) remains a challenging task. Here, it is demonstrated that activity intrinsic carbon can be dramatically improved through coupling with single‐atom Fe–N 4 sites. The resulting catalyst delivers maximum Faradaic efficiency 90% and partial current density 33 mA cm −2 in 0.1 m KHCO 3. remarkable enhancements are maintained concentrated electrolyte, endowing...
Replacing conventional metal–N4 moieties with different coordination structures is a promising strategy to tailor the activity and selectivity of single-atom catalysts (SACs). However, for CO2 electroreduction driven by metals that may produce diverse chemical species, such as Tin (Sn), influences nonnitrogen environments on reduction pathways are unclear. Herein, we report an Sn SAC special structure Sn-C2O2F, which delivers CO exclusive product faradaic efficiency higher than 90.0% over...
Nonmetallic functional species beyond the first coordination shell can affect or even dictate electrocatalytic performance of single-atom catalysts via indirect, long-range interaction with metal atoms.
Abstract Balancing the activation of H 2 O is crucial for highly selective CO electroreduction (CO RR), as protonation steps RR require fast dissociation kinetics, while suppressing hydrogen evolution (HER) demands slow reduction. We herein proposed one molecular engineering strategy to regulate using aprotic organic small molecules with high Gutmann donor number a solvation shell regulator. These occupy first K + and accumulate in electrical double layer, decreasing density at interface...
Abstract In this study, Co/Ni‐NC catalyst with hetero‐diatomic Co/Ni active sites dispersed on nitrogen‐doped carbon matrix is synthesized via the controlled pyrolysis of ZIF‐8 containing Co 2+ and Ni compounds. Experimental characterizations theoretical calculations reveal that are atomically uniformly in pairs CoN 4 ‐NiN an intersite distance ≈0.41 nm, there long‐range d – coupling between more electron delocalization for higher bifunctional activity. Besides, situ grown nanotubes at edges...
Commercial carbon paper (CP), a classical current collector, does not remain inert when subjected to CO 2 electroreduction in non-aqueous electrolyte.
Abstract High-purity ethylene production from CO 2 electroreduction (CO RR) is a coveted, yet arduous feat because the product stream comprises blend of unreacted , H 2, and other off-target reduction products. Here we present an indirect strategy for -to-ethylene conversion, one that employs 2-bromoethanol (Br-EO) as mediator. Br-EO initially generated RR subsequently undergoes to without need energy-intensive separation steps. The optimized AC-Ag/C catalyst with Cl incorporation reduces...
N-Doped mesoporous carbon-supported CoO@Co nanoparticles using an ionic liquid as the precursor show superior catalytic activity for Li–O<sub>2</sub>batteries.
Carbon-based matrix is known to exert a profound influence on the stability and activity of supported molecular catalyst for electrochemical CO2 reduction reaction (eCO2RR), while regulating interfacial π–π interaction by designing functional species carbon has seldom been explored. Herein, promoted π electron transfer between graphene substrate cobalt phthalocyanine (CoPc) achieved introducing abundant intrinsic defects into (DrGO), which not only generates more electrochemically active Co...
Abstract Pervasive intrinsic defects have a significant impact on the electrocatalytic activity of carbon materials, but previous research has focused effects topological structures exclusively. Herein, compelling demonstration pivotal role played by positions and spatial arrangement in determining their efficacy for electrochemical CO 2 reduction (ECR) is presented. Theoretical calculations reveal substantial energy barriers * COOH formation at positioned along edges while hindering...
Electrosynthesis of high‐purity carbon monoxide (CO) from captured dioxide (CO₂) remains energy‐intensive due to the unavoidable CO₂ regeneration and post‐purification stages. Here, we propose a direct CO electrosynthesis strategy employing an innovative electrolyte, termed porous electrolyte (PE), based on "porous water". Zeolite nanocrystals within PE provide permanent pores in liquid phase, enabling physical adsorption through intraparticle diffusion model, as demonstrated by molecular...
Electrosynthesis of high‐purity carbon monoxide (CO) from captured dioxide (CO₂) remains energy‐intensive due to the unavoidable CO₂ regeneration and post‐purification stages. Here, we propose a direct CO electrosynthesis strategy employing an innovative electrolyte, termed porous electrolyte (PE), based on "porous water". Zeolite nanocrystals within PE provide permanent pores in liquid phase, enabling physical adsorption through intraparticle diffusion model, as demonstrated by molecular...
Carbon-based electrocatalysts with single metal sites hold great potential for mechanism exploration via mimicking molecular catalysts, due to their distinct catalytic sites. In addition atoms, the neighboring nonmetal heteroatoms such as N, S, and O which are widely detected in carbon-based single-atom may also contribute enhancing electrochemical activity of single-metal centers. this work, boosting effect O-doping toward oxygen reduction reaction (ORR) was evaluated by both experimental...
Nonhealing skin wounds are a problematic complication associated with diabetes. Therapeutic gases delivered by biomaterials have demonstrated powerful wound healing capabilities. However, the cellular responses and heterogeneity in regeneration process after gas therapy remain elusive. Here, we display benefit of carbon monoxide (CO)-releasing hyaluronan hydrogel (CO@HAG) promoting diabetic investigate through single-cell transcriptomic analysis. The presented CO@HAG demonstrates...
A single-atom utilization of 93% is realized by downsizing MOF particles into quantum dots featuring a shorter diffusion path and stronger substrate–MOF electronic interaction, thus promoting mass interfacial electron transfer.
Considering the significant influence of oxygen-containing groups on surface carbon involved electrodes, a nanotube (CNT)-based MnO2 composite catalyst was synthesized following facile method while using polymerized ionic liquids (PIL) as sacrifice agent. Herein, PIL (polymerized hydrophobic 1-vinyl-3-ethylimidazolium bis ((trifluoromethyl)sulfonyl)imide) wrapped CNTs were prepared. The applied to support by treatment KMnO4 solution, taking advantage reaction between and KMnO4, which...
Upgrading CO2 to formate systems is a promising avenue for fuel production, and SnOx unique low-cost candidate this conversion. However, the high oxygen affinity of Sn sites leads strong adsorption O-bound intermediates, resulting in low efficiency reduction. Herein, density functional theory (DFT) calculations confirmed that H-doping strategy SnO2 produces partially depleted positive charge sites, weakening HCOO* boosting electron transfer kinetics. Experimentally, H-doped commercial...
Abstract Balancing the activation of H 2 O is crucial for highly selective CO electroreduction (CO RR), as protonation steps RR require fast dissociation kinetics, while suppressing hydrogen evolution (HER) demands slow reduction. We herein proposed one molecular engineering strategy to regulate using aprotic organic small molecules with high Gutmann donor number a solvation shell regulator. These occupy first K + and accumulate in electrical double layer, decreasing density at interface...