Optimizing interfacial electronic coupling with metal oxide to activate inert polyaniline for superior electrocatalytic hydrogen generation

作     者：Zhen-Feng Huang Jiajia Song Yonghua Du Shuo Dou Libo Sun Wei Chen Kaidi Yuan Zhengfei Dai Xin Wang 

作者机构：School of Chemical and Biomedical EngineeringNanyang Technological UniversitySingaporeSingapore Singapore-HUJ Alliance for Research and EnterpriseNEW-CREATE Phase IICampus for Research Excellence and Technological Enterprise(CREATE)SingaporeSingapore Institute of Chemical and Engineering SciencesA*STARJurong IslandSingapore Department of ChemistryNational University of SingaporeSingaporeSingapore School of Materials Science and EngineeringNanyang Technological UniversitySingaporeSingapore 

出 版 物：《Carbon Energy》 (碳能源（英文）)

年 卷 期：2019年第1卷第1期

页      面：77-84页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：The authors appreciate the supports from the National Research Foundation(NRF) Prime Minister’s Office Singapore under its Campus for Research Excellence and Technological Enterprise(CREATE)programme.We also acknowledge financial support from the academic research fund AcRF tier 2(M4020246 ARC10/15) Ministry of Education Singapore 

主　　题：hydrogen evolution interfacial electronic coupling metal oxide N-H bond polyaniline 

摘      要：Tuning and optimization of electronic structures and related reaction energetics are critical toward the rational design of efficient ***,experimental and theoretical calculation demonstrate the originally inert N site within polyaniline(PANI)can be activated for hydrogen evolution by proper d-πinterfacial electronic coupling with metal *** a result,the assynthesized WO3 assemblies@PANI via a facile redox-induced assembly and in situ polymerization,exhibits the electrocatalytic production of hydrogen better than other control samples including W18O49@PANI and most of the reported nobel-metal-free electrocatalysts,with low overpotential of 74 mV at 10 mA·cm−2 and small Tafel slope of 46 mV·dec−1 in 0.5M H2SO4(comparable to commercial Pt/C).The general efficacy of this methodology is also validated by extension to other metal oxides such as MoO3 with similar improvements.