Nanocapillarity and Nanoconfinement Effects of Pipet-like Bismuth@Carbon Nanotubes for Highly Efficient Electrocatalytic CO2 Reduction

doi:10.1021/acs.nanolett.1c00390

	Nanocapillarity and Nanoconfinement Effects of Pipet-like Bismuth@Carbon Nanotubes for Highly Efficient Electrocatalytic CO2 Reduction
	Zhang, Wenjun 1,2,3; Yang, Songyuan 1,3; Jiang, Minghang 1,3; Hu, Yi 1,3; Hu, Chaoquan 4; Zhang, Xiaoli 5; Jin, Zhong 1,3
刊名	NANO LETTERS
	2021-03-24
卷号	21 期号:6 页码:2650-2657
关键词	electrochemical CO2 reduction formate production selectivity nanocapillarity nanoconfinement
ISSN号	1530-6984
DOI	10.1021/acs.nanolett.1c00390
英文摘要	Electrocatalytic CO2 reduction reaction is regarded as an intriguing route for producing renewable chemicals and fuels, but its development is limited by the lack of highly efficient and stable electrocatalysts. Herein, we propose the pipet-like bismuth (Bi) nanorods semifilled in nitrogen-doped carbon nanotubes (Bi-NRs@NCNTs) for highly selective electrocatalytic CO2 reduction. Benefited from the prominent capillary and confinement effects, the Bi-NRs@NCNTs act as nanoscale conveyors that can significantly facilitate the mass transport, adsorption,and concentration of reactants onto the active sites, realizing rapid reaction kinetics and low cathodic polarization. The spatial encapsulation and separation by the NCNT shells prevents the self-aggregation and surface oxidation of Bi-NRs, increasing the dispersity and stability of the electrocatalyst. As a result, the Bi-NRs@NCNTs exhibit high activity and durable catalytic stability for CO2-to-formate conversion over a wide potential range. The Faradaic efficiency for formate production reaches 90.9% at a moderate applied potential of -0.9 V vs reversible hydrogen electrode (RHE).
资助项目	National Key Research and Development Program of China[2017YFA0208200] ; Fundamental Research Funds for the Central Universities of China[0205-14380219] ; Fundamental Research Funds for the Central Universities of China[0205-14913212] ; NSFC[22022505] ; NSFC[21872069] ; NSFC[51761135104] ; Natural Science Foundation of Jiangsu Province[BK20180008] ; Shenzhen Fundamental Research Program of Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20180307155007589]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000634766600040
资助机构	National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities of China ; NSFC ; Natural Science Foundation of Jiangsu Province ; Shenzhen Fundamental Research Program of Science, Technology and Innovation Commission of Shenzhen Municipality
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48196]
专题	中国科学院过程工程研究所
通讯作者	Hu, Chaoquan; Jin, Zhong
作者单位	1.Nanjing Univ, Sch Chem & Chem Engn, Jiangsu Key Lab Adv Organ Mat, MOE Key Lab Mesoscop Chem,MOE Key Lab High Perfor, Nanjing 210023, Peoples R China 2.Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Jiangsu Prov Key Lab Green Biomass Based Fuels &, Nanjing 210037, Peoples R China 3.Nanjing Univ, Shenzhen Res Inst, Shenzhen 518063, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 5.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wenjun,Yang, Songyuan,Jiang, Minghang,et al. Nanocapillarity and Nanoconfinement Effects of Pipet-like Bismuth@Carbon Nanotubes for Highly Efficient Electrocatalytic CO2 Reduction[J]. NANO LETTERS,2021,21(6):2650-2657.
APA	Zhang, Wenjun.,Yang, Songyuan.,Jiang, Minghang.,Hu, Yi.,Hu, Chaoquan.,...&Jin, Zhong.(2021).Nanocapillarity and Nanoconfinement Effects of Pipet-like Bismuth@Carbon Nanotubes for Highly Efficient Electrocatalytic CO2 Reduction.NANO LETTERS,21(6),2650-2657.
MLA	Zhang, Wenjun,et al."Nanocapillarity and Nanoconfinement Effects of Pipet-like Bismuth@Carbon Nanotubes for Highly Efficient Electrocatalytic CO2 Reduction".NANO LETTERS 21.6(2021):2650-2657.