Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalysts

doi:10.1039/c9se00678h

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalysts
	Fang, Minling ; Zheng, Zhiping ; Chen, Jiayu ; Chen, Qian ; Liu, Deyu ; Xu, Binbin ; Wu, Jianyang ; Kuang, Qin ; Xie, Zhaoxiong
刊名	SUSTAINABLE ENERGY & FUELS
	2020
卷号	4 期号:2 页码:600-606
关键词	CARBON-DIOXIDE ELECTROCHEMICAL REDUCTION TIN ELECTRODES ELECTROREDUCTION EFFICIENT NANOPARTICLES FACETS
DOI	10.1039/c9se00678h
英文摘要	An alternative way to mitigate the energy and environmental crisis is electrochemical CO2 reduction (ECR) into high-value products using renewable energy. Recently, Sn-based catalysts have attracted attention because of their high ECR selectivity to C1 products (HCOOH and CO). However, high overpotential, low current density, and poor stability are some issues that need to be addressed for these Sn based ECR catalysts. Resolving these problems largely depends on a comprehensive insight into the relationship between the structure and the performance of the catalysts in the ECR. In this work, we specifically compared the ECR activities and selectivities of three kinds of SnO2 nanocrystals (NCs) with different dominantly exposed facets ({111}, {221} and {110}) in an effort to elucidate their surface structure-performance relationship. We found that {111} faceted octahedral SnO2 NCs (i.e., Oct-{111} NPs) showed not only high selectivity for C1 products (>90% FE) in a wide potential range of -0.7 V to -1.0 V but also significant stability. The performance of Oct-{111} NPs was superior to that of the other two SnO2 morphologies, i.e. {221} faceted SnO2 octahedral NCs and {110}-dominantly faceted SnO2 rod-like NCs. Detailed structure and composition analysis revealed that such different ECR performances of the three SnO2 facets were mainly related to the formation of different catalytic layers on their surfaces. The findings presented here will deepen our understanding of the surface-dependent performances of Sn-based electrocatalysts in the ECR. This work provides a new strategy to construct high performance electrocatalysts through rational regulation of the metal/oxide interface.
学科主题	Chemistry ; Energy & Fuels ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20014]
专题	2020专题
作者单位	1.Kuang, Q 2.Xie, ZX (corresponding author), Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China. 3.Xie, ZX (corresponding author), Xiamen Univ, Pen Tung Sah Inst Micronano Sci & Technol, Xiamen 361005, Peoples R China.
推荐引用方式 GB/T 7714	Fang, Minling,Zheng, Zhiping,Chen, Jiayu,et al. Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalysts[J]. SUSTAINABLE ENERGY & FUELS,2020,4(2):600-606.
APA	Fang, Minling.,Zheng, Zhiping.,Chen, Jiayu.,Chen, Qian.,Liu, Deyu.,...&Xie, Zhaoxiong.(2020).Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalysts.SUSTAINABLE ENERGY & FUELS,4(2),600-606.
MLA	Fang, Minling,et al."Surface structure-dependent electrocatalytic reduction of CO2 to C1 products on SnO2 catalysts".SUSTAINABLE ENERGY & FUELS 4.2(2020):600-606.