Exploring the Pyrolysis Mechanism towards OER Performance Optimization of Salophen-ligated Binuclear Cobalt Complex  

作　　者：Qi An Bingxin Pan Li Li Xu Peng Ming-Hua Zeng 

机构地区：[1]Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials,Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry&Chemical Engineering,Hubei University,Wuhan,Hubei 430062,China [2]Department of Chemistry and Pharmaceutical Sciences,Guangxi Normal University,Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources,Guilin,Guangxi 541004,China

出　　处：《Chinese Journal of Chemistry》2021年第9期2529-2535,共7页中国化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant 21805074);the BAGUI Talent Program(2019AC26001);NSFGX(Grant 2017GXNSFDA198040).

摘　　要：Exploring pyrolysis process is an efficient way to study the relationship between molecular level of the precursor structure and electrocatalytic functional materials in practice.Here,the unique semi-enclosed sector structure of Salophen ligands with highly symmetric N,N,0,0 mode was introduced to construct binuclear Co complex[Co2(salophen)(CI)2(C2H3N)](compound 1),which provides pre-liminary theoretical basis for the efficient coreshell structure electrocatalysts obtained by pyrolysis regulation.Moreover,we adopted TG-MS to real-time track the pyrolysis process from precursors of binuclear Co complexes with Salophen ligand to efficient catalytic materials with core-shell nano structures.As expected,the 1-600 sample achieves ultra-low overpote ntial of 256 mV at 10 mA·cm^(-2) and high catalytic stability within 10 h in 1 mol/L KOH solution.This work highlights salophen-ligated complex as excellent precursor material system for the an alysis of pyrolysis evoluti on process,and provides an opport unity for targeted preparati on of efficie nt oxy-gen evoluti on reacti on(OER)nano catalysts.

关 键 词：Schiff bases PYROLYSIS TG-MS Nanostructures ELECTROCHEMISTRY 

分 类 号：O62[理学—有机化学]