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

Wu, Qilong1,2; Liu, Chuangwei3; Su, Xiaozhi4; Yang, Qi1,2; Wu, Xiaotong1,2; Zou, Haiyuan1,2; Long, Baihua1,2; Fan, Xiaokun1,2; Liao, Yujia1,2; Duan, Lele5,6; Quan, Zewei5,6,7; Luo, Shuiping1,2

2022-12-01

10.1021/acsnano.2c08768

ACS Nano   Impact Factor & Quartile

1936-0851

1936-086X

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 (Delta E = 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.

defect engineering grain boundary Sn doping CO2 reduction reaction wide potential window

SCI

English

NI Journal Papers

First ; Corresponding

[52101259] ; [2017YFE0132300] ; [ACSRF65827] ; [2018B030322001] ; [2016ZT06C279] ; [JCYJ20210324105008022] ; [KQTD2016053019134356]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000906141700001

AMER CHEMICAL SOC

Web of Science

1.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
3.Tech Univ Denmark, Dept Energy Convers & Storage, DK-2800 Lyngby, Denmark
4.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China
5.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
6.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Peoples R China
7.Southern Univ Sci & Technol, Key Lab Energy Convers & Storage Technol, Minist Educ, Shenzhen 518055, Peoples R China

Wu, Qilong,Liu, Chuangwei,Su, Xiaozhi,et al. Defect-Engineered Cu-Based Nanomaterials for Efficient CO2 Reduction over Ultrawide Potential Window[J]. ACS Nano,2022.

Wu, Qilong.,Liu, Chuangwei.,Su, Xiaozhi.,Yang, Qi.,Wu, Xiaotong.,...&Luo, Shuiping.(2022).Defect-Engineered Cu-Based Nanomaterials for Efficient CO2 Reduction over Ultrawide Potential Window.ACS Nano.

Wu, Qilong,et al."Defect-Engineered Cu-Based Nanomaterials for Efficient CO2 Reduction over Ultrawide Potential Window".ACS Nano (2022).