Controllable Active Sites in Cu_{2–x}Se/Cu/NC Nanoparticles for Efficient Electroreduction to C₂₊ Products

Hao Wang; An Gao; Alina Bari; Mingzheng Gu; Xiaojun Zhang; Guangfeng Wang

doi:10.1021/acsanm.3c04961

journal article·2024-04-12

Controllable Active Sites in Cu_2–xSe/Cu/NC Nanoparticles for Efficient Electroreduction to C₂₊ Products

Hao Wang, An Gao, Alina Bari, Mingzheng Gu, Xiaojun Zhang, Guangfeng Wang

ACS Applied Nano Materials· Volume 7· Issue 7

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Source abstract

Abstract

Metal nanoparticles make up a special class of nanomaterials with precise crystal structures and compositions that play a crucial role in exploring structure–property relationships. Copper (Cu)-based nanoparticles possess great potential for electrocatalytic carbon dioxide (CO 2 ) reduction to produce long-chain hydrocarbons and multicarbon oxygenated compounds (C 2+ ). Herein, we have designed and synthesized Cu 2– x Se/Cu/NC catalysts, whose Cu 0 –Cu + species content on the surface can be tuned by the calcination temperature, with a bias current density of 30.44 mA cm –2 at −1.4 V versus RHE and a Faraday efficiency (FE-C 2+ ) of 71.57%. The experimental results show that Cu + can adsorb intermediates *CO efficiently and reduce the reaction potential barrier to promote C–C bond coupling, providing insights into the design of catalytic materials that direct the reaction pathway toward the C 2+ product.

Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials Catalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Ionic liquids properties and applications · Ammonia Synthesis and Nitrogen Reduction

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory for Functional Molecular Solids of the Education Ministry of China, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China

Anhui Province International Research Center on Advanced Building Materials, Anhui Jianzhu University, Hefei 230601, P.R. China

Funding

Science Fund for Distinguished Young Scholars of Anhui Province · Anhui Department of Education · National Natural Science Foundation of China · State Key Laboratory of High Performance Ceramics and Superfine Microstructure · Natural Science Foundation of Anhui Province · Anhui Province International Research Center on Advanced Building Materials

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