DataVXACS NanoPaper
journal article·2023-01-10

Defect-Engineered Cu-Based Nanomaterials for Efficient CO2 Reduction over Ultrawide Potential Window

Qilong Wu, Chuangwei Liu, Xiaozhi Su, Qi Yang, Xiaotong Wu, Haiyuan Zou, Baihua Long, Xiaokun Fan, Yujia Liao, Lele Duan, Zewei Quan, Shuiping Luo

ACS Nano· Volume 17· Issue 1
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Source abstract

Abstract

High conversion efficiency over a wide operating potential window is important for the practical application of CO2 reduction electrocatalysis, yet that remains a huge challenge in differentiating the competing CO2 reduction and H2 evolution. Here we introduce point defects (Sn doping) and planar defects (grain boundary) into the Cu substrate. This multidimensional defect integration strategy guides the fabrication of highly diluted SnCu polycrystal, which exhibits high Faradaic efficiencies (>95%) toward CO2 electroreduction over an ultrawide potential window (ΔE = 1.3 V). The theoretical study indicates that the introduction of Sn doping and grain boundary synergistically provides an optimized electronic effect, which helps suppress H2 evolution and promotes the hydrogenation of *CO2.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Electrocatalysts for Energy Conversion · Ionic liquids properties and applications

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

Affiliations

Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen518055, China

Department of Energy Conversion and Storage, Technical University of Denmark, Lyngby2800, Denmark

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai201210, China

Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen518055, China

Ministry of Education, Key Laboratory of Energy Conversion and Storage Technologies, Southern University of Science and Technology, Shenzhen518055, China

Funding

Guangdong Science and Technology Department · Ministry of Science and Technology of the People's Republic of China · Science, Technology and Innovation Commission of Shenzhen Municipality · Australian Government · National Natural Science Foundation of China

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