Spiral effect of helical carbon nanorods boosting electrocatalysis of oxygen reduction reaction

作     者：Peng-Chao Shi Duan-Hui Si Ming-Shui Yao Tao-Tao Liu Yuan-Biao Huang Teng Zhang Rong Cao 石鹏超;司端惠;姚明水;刘陶陶;黄远标;张腾;曹荣

作者机构：State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of SciencesBeijing 100049China 

基　　金：financial support from the National Key Research and Development Program of China(2018YFA0208600 and 2017YFA0700100) the Key Research Program of Frontier Science,CAS(QYZDJ-SSW-SLH045) the National Natural Science Foundation of China(21671188,21871263 and 22033008) the Strategic Priority Research Program of CAS(XDB20000000) the Youth Innovation Promotion Association,CAS(2014265) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第6期

页      码：1531-1538页

摘      要：Helical metal-organic frameworks(MOFs)were used as templates or precursors to fabricate helical carbon nanorods(HCNRs)for the first *** carbon contains many topological defects such as pentagonal or heptagonal carbons,which have the potential to facilitate oxygen reduction reactions(ORR).HCNRs show more positive onset/halfwave reduction potentials and higher limited current density than straight carbon nanorods(SCNRs).They also exhibit four-electron oxygen reduction in tests of ORR,while the alternative SCNRs prefer a two-electron reduction *** and theoretical studies reveal that these enhanced ORR activities can be attributed to pentagon/heptagon defects in *** work provides an effective strategy to synthesize helical,defect-rich carbon materials and opens up a new perspective for utilization of a spiral effect for the development of more effective electrocatalysts.

主 题 词：helical carbon nanorods oxygen reduction reaction spiral effect pentagon/heptagon defects 

学科分类：081705[081705] 07[理学] 070205[070205] 08[工学] 0817[工学-轻工类] 080501[080501] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s40843-021-1919-5

馆 藏 号：203109514...