文献类型：期刊文献

英文题名：Curvature Effect of Pyridinic N-Modified Carbon Atom Sites for Electrocatalyzing CO2 Conversion to CO

作者：Zhao, Yuying[1,2,3] Yuan, Qixin[3] Sun, Kang[1,2] Wang, Ao[1,2] Xu, Ruting[1,2] Xu, Jing[3] Wang, Yan[3] Fan, Mengmeng[1,2,3] Jiang, Jianchun[1,2,3]

第一作者：Zhao, Yuying

通信作者：Fan, MM[1];Fan, MM[2];Fan, MM[3]

机构：[1]Chinese Acad Forestry, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210042, Jiangsu, Peoples R China;[3]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China

年份：2023

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20233314568950);Scopus(收录号：2-s2.0-85167480832);WOS:【SCI-EXPANDED(收录号:WOS:001036869700001)】；

基金：This work is supported by the Key Lab & nbsp;of Biomass Energy and Material, Jiangsu Province (JSBEM-S-202315), Foundation Research Project of Jiangsu Province (BK20221338), National Natural Science Foundation of China (No. 51902162), and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, the Foundation of Jiangsu Key Lab of Biomass Energy and Material (JSBEM-S-202101).

语种：英文

外文关键词：carbon nanotubes; curvature effect; pyridinicN; CO2 reduction; CO selectivity

摘要：Carbon material is considered a promisingelectrocatalystfor theCO(2) reduction reaction (CO2RR); especially,N-doped carbon material shows high CO Faradic efficiency (FECO) when using pyridinic N species as the active site. However, inthe past decade, more efforts were focused on the preparation of variouscarbon nanostructures containing abundant pyridinic N species andfew researchers studied the electronic structure modulation of thepyridinic N site. The curvature of the carbon substrate is an easilycontrollable parameter for modulating the local electronic environmentof catalytic sites. In this research, carbon nanotubes (CNTs) withdifferent diameters are applied to modulate the electronic environmentof pyridinic N by the curvature effect. The pyridinic N sites dopedon CNTs with the average curvature of 0.04 show almost 100% FECO at the current density of 3 mA cm(-2) at-0.6 V vs RHE and 91% FECO retention after 12 h test, which is superior to most of the carbon-based electrocatalysts.As demonstrated by density functional theory simulation, the pyridinicN site forms a strong local electric field around the nearby C activesite and protrudes out of the curved CNT surface like a tip, whichremarkably enriches the protons around the adsorbed CO2 molecule.