DataVXAdvanced MaterialsPaper
journal article·2024-08Open access

Site‐Selective Growth of fcc‐2H‐fcc Copper on Unconventional Phase Metal Nanomaterials for Highly Efficient Tandem CO2 Electroreduction

Yangbo Ma, Mingzi Sun, Hongming Xu, Qinghua Zhang, Jia Lv, Weihua Guo, Fengkun Hao, Wenting Cui, Yunhao Wang, Jinwen Yin, Haiyu Wen, Pengyi Lu, Guozhi Wang, Jingwen Zhou, Jinli Yu, Chenliang Ye, Lin Gan, Daliang Zhang, Shengqi Chu, Lin Gu, Minhua Shao, Bolong Huang, Zhanxi Fan

Advanced Materials· Volume 36· Issue 32
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Source abstract

Abstract

Abstract Copper (Cu) nanomaterials are a unique kind of electrocatalysts for high‐value multi‐carbon production in carbon dioxide reduction reaction (CO2RR), which holds enormous potential in attaining carbon neutrality. However, phase engineering of Cu nanomaterials remains challenging, especially for the construction of unconventional phase Cu‐based asymmetric heteronanostructures. Here the site‐selective growth of Cu on unusual phase gold (Au) nanorods, obtaining three kinds of heterophase fcc‐2H‐fcc Au–Cu heteronanostructures is reported. Significantly, the resultant fcc‐2H‐fcc Au–Cu Janus nanostructures (JNSs) break the symmetric growth mode of Cu on Au. In electrocatalytic CO2RR, the fcc‐2H‐fcc Au–Cu JNSs exhibit excellent performance in both H‐type and flow cells, with Faradaic efficiencies of 55.5% and 84.3% for ethylene and multi‐carbon products, respectively. In situ characterizations and theoretical calculations reveal the co‐exposure of 2H‐Au and 2H‐Cu domains in Au–Cu JNSs diversifies the CO* adsorption configurations and promotes the CO* spillover and subsequent C–C coupling toward ethylene generation with reduced energy barriers.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Ionic liquids properties and applications · Advanced Thermoelectric Materials and Devices

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

Affiliations

Department of Chemistry City University of Hong Kong Hong Kong 999077 China

Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hong Kong 999077 China

Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) City University of Hong Kong Hong Kong 999077 China

Department of Chemical and Biological Engineering Energy Institute The Hong Kong University of Science and Technology Hong Kong 999077 China

Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China

Multi‐scale Porous Materials Center Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China

Institute of Materials Research Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 China

Department of Power Engineering North China Electric Power University Baoding 071003 China

Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China

Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials Department of Materials Science and Engineering Tsinghua University Beijing 100084 China

Hong Kong Institute for Clean Energy (HKICE) City University of Hong Kong Hong Kong 999077 China

City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality · City University of Hong Kong

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