DataVXACS Materials LettersPaper
journal article·2021-08-02

Ultrathin CuNi Nanosheets for CO2 Reduction and O2 Reduction Reaction in Fuel Cells

Yibo Yan, Zhengping Zhao, Jun Zhao, Yaohui Xu, Yifan Xu, Yuhan Zhao, Wenfei Tang, Jong-Min Lee

ACS Materials Letters· Volume 3· Issue 8
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Source abstract

Abstract

Developing efficient electrocatalysts applicable to CO2 reduction reaction and fuel cells has drawn great attention for energy conservation and environmental protection. Molecular conversion of CO2 to valuable products and fuel cells functioning with ultrahigh energy efficiencies is critical to remediate the global warming and energy crisis. Here, ultrathin hexagonal CuNi nanosheets are demonstrated to drive CO2 reduction to C ≥ 2 products with a high Faradaic efficiency (80.5%) at −1.5 V vs RHE. Modulation of the d-band states, intermediate binding energy, and interatomic synergistic interaction between Ni and Cu are crucial for the enhancement of catalytic activity through intermediate binding control and boosting of charge transfer kinetics. In addition, a four-electron oxygen reduction reaction (ORR) process is validated for the ultrahigh performance in steady-state hydrogen–air fuel cells.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Electrocatalysts for Energy Conversion · Advanced battery technologies research

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

Affiliations

Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China

Zhijiang College, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China

School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore

Funding

National Natural Science Foundation of China · AcRF Tier 1 grant, provided by Ministry of Education in Singapore · Fundamental Research Funds for the Central Universities, University Science and Technology Association Talent Promotion Program of Shaanxi

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