A5100784912- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Ammonia Synthesis and Nitrogen Reduction
- CO2 Reduction Techniques and Catalysts
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Rare-earth and actinide compounds
- Covalent Organic Framework Applications
- Conducting polymers and applications
- High-pressure geophysics and materials
- Electrochemical Analysis and Applications
- Catalytic Processes in Materials Science
- Model Reduction and Neural Networks
- 2D Materials and Applications
- Hydrogen Storage and Materials
- MXene and MAX Phase Materials
- Fractional Differential Equations Solutions
- Catalysis and Hydrodesulfurization Studies
- Muon and positron interactions and applications
- Plant biochemistry and biosynthesis
- Nanomaterials for catalytic reactions
- Inorganic Fluorides and Related Compounds
- Caching and Content Delivery
- Pharmacogenetics and Drug Metabolism
Hunan University
2022-2024
Curtin University
2021-2024
State Key Laboratory of Chemobiosensing and Chemometrics
2022-2024
UNSW Sydney
2023-2024
Guangxi University
2018-2023
Ji Hua Laboratory
2023
Qufu Normal University
2023
Ministry of Education of the People's Republic of China
2020-2021
Nanning Normal University
2020
Kunming University
2020
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...
Nonprecious group metal (NPGM)-based single atom catalysts (SACs) hold a great potential in electrocatalysis and dopant engineering has been extensively exploited to boost their catalytic activity, while the coordination environment of dopant, which also significantly affects electronic structure SACs, consequently electrocatalytic performance, have largely ignored. Here, by adopting precursor modulation strategy, authors successfully synthesize cobalt embedded nitrogen-doped carbon, Co-N/C,...
Electrocatalytic urea synthesis via coupling N2 and CO2 provides an effective route to mitigate energy crisis close carbon footprint. However, the difficulty on breaking N≡N is main reason that caused low efficiencies for both electrocatalytic NH3 synthesis, which bottleneck restricting their industrial applications. Herein, a new mechanism overcome inert of nitrogen molecule was proposed by elongating instead realize one-step C-N in process production. We constructed Zn-Mn diatomic catalyst...
Abstract The electrocatalytic C−N coupling from carbon dioxide and nitrate under ambient conditions is kind of sustainable promising alternative method for urea synthesis. To date, the influence catalyst surface properties on molecular adsorption configuration synthesis activity unclear. In this work, we proposed that closely linked with localized charge bimetallic electrocatalysts, it found a negatively charged induces C‐bound path boosts yield rate can reach 13.1 mmol g −1 h Cu 97 3 ‐C,...
Electrocatalytic reduction of nitric oxide (NO) to ammonia (NH3 ) is a promising approach NH3 synthesis. However, due the lack efficient electrocatalysts, performance electrocatalytic NO reaction (NORR) far from satisfactory. Herein, it reported that an atomic copper-iron dual-site electrocatalyst bridged by axial oxygen atom (OFeN6 Cu) anchored on nitrogen-doped carbon (CuFe DS/NC) for NORR. The CuFe DS/NC can significantly enhance synthesis (Faraday efficiency, 90%; yield rate, 112.52...
Electrochemical water-splitting reactions (hydrogen evolution reaction (HER) and oxygen (OER)) redox (oxygen reduction (ORR) OER) are core processes for electrochemical devices, rechargeable metal-air batteries, regenerative fuel cells. Developing highly efficient non-noble multifunctional catalysts in the same electrolyte is an open challenge. Herein, Co-N-C electrocatalysts with a mixed structure comprising Co-N moieties Co nanoparticles encapsulated N-doped carbon layer were prepared via...
Abstract The recent report of near-ambient superconductivity and associated color changes in pressurized nitrogen doped lutetium hydride has triggered worldwide interest raised major questions about the nature underlying physics these latest claims. Here we synthesis characterization high-purity LuH 2± x N y . We find that pressure conditions have notable effects on Lu-N Lu-NH chemical bonding likely stem from pressure-induced electron redistribution nitrogen/vacancies interaction with 2...
As a widely used commodity chemical, ammonia is critical for producing nitrogen-containing fertilizers and serving as the promising zero-carbon energy carrier. Photoelectrochemical nitrogen reduction reaction (PEC NRR) can provide solar-powered green sustainable route synthesis of (NH3 ). Herein, an optimum PEC system reported with Si-based hierarchically-structured PdCu/TiO2 /Si photocathode well-thought-out trifluoroethanol proton source lithium-mediated NRR, achieving record high NH3...
Abstract Electrocatalytic C−N coupling process is indeed a sustainable alternative for direct urea synthesis and co‐upgrading of carbon dioxide nitrate wastes. However, the main challenge lies in unactivated process. Here, we proposed strategy intermediate assembly with alkali metal cations to activate at electrode/electrolyte interface. Urea activity follows trend Li + <Na <Cs <K . In presence K , world‐record performance was achieved yield rate 212.8±10.6 mmol h −1 g on...
Photoelectrochemical (PEC) coupling of CO 2 and nitrate can provide a useful green source urea, but the process is affected by photocathodes with poor charge-carrier dynamics low conversion efficiency. Here, NiFe diatomic catalysts/TiO layer/nanostructured n + p-Si photocathode rationally designed, achieving good charge-separation efficiency 78.8% charge-injection 56.9% in PEC urea synthesis. Compared electrocatalytic synthesis using same catalysts, Si-based shows similar yield rate (81.1...
Abstract The electrochemical C‐N coupling process, facilitating the production of organic nitrogen substances (such as urea, methylamine, formamide, and ethylamine) via simultaneous reduction carbon dioxide (CO 2 ) small nitrogen‐based substances, stands at forefront advancing neutrality artificial cycle. This method has garnered substantial interest due to its potential economic environmental benefits. Although considerable progress been achieved in this emerging field, it still faces...
The electrocatalytic C-N coupling from CO
Developing transition-metal excluding iron and cobalt–nitrogen–carbon (M–N–C) electrocatalysts for the oxygen reduction reaction (ORR) is critical to substantially promote development of precious-metal-free metal–air batteries fuel cells. In work, Mn–N–C nanoparticles with atomically dispersed MnNx moieties were synthesized by pyrolyzing Mn-ion–dual-pyridine coordinated complex, which was obtained via a simple condensation between 2,6-diamino-pyridine 2,6-diacetyl-pyridine MnCl2 as Mn...