Novel confinement combustion method of nanosized WC/C for efficient electrocatalytic oxygen reduction

作     者：Pengqi Chen Yunxiao Tai Huan Wu Yufei Gao Jiayu Chen Jigui Cheng Pengqi Chen;Yunxiao Tai;Huan Wu;Yufei Gao;Jiayu Chen;Jigui Cheng

作者机构：School of Materials Science and EngineeringHefei University of TechnologyHefei 230009China National-Local Joint Engineering Research Centre of Nonferrous Metals and Processing TechnologyHefei University of TechnologyHefei 230009China AECC Commercial Aircraft Engine Co.Ltd.Shanghai 200241China Research Centre for Powder Metallurgy Engineering and Technology of Anhui ProvinceHefei 230009China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2022年第29卷第8期

页      面：1627-1634页

核心收录：

学科分类：0808[工学-电气工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：This work was financially supported by the China Postdoctoral Science Foundation(No.2019M652169) the University Synergy Innovation Program of Anhui Province(No.GXXT-2019-016) the Natural Science Foundation of Anhui(No.JZ2018AKZR0063) the Fundamental Research Funds for the Central University,China(No.PA2019GDPK0044) 

主　　题：confinement combustion synthesis tungsten carbide activated carbon electrochemical catalysis oxygen reduction reaction 

摘      要：Nanosized tungsten carbide(WC)/carbon(C)catalyst was synthesized via a novel ultra-rapid confinement combustion synthesis *** amount of activated carbon(AC)plays an important role in the morphology and structure,controlling both the precursor and final *** WC particles synthesized inside the pores of the AC had been 10-20 nm because of the confinement of the pore structure and the large specific surface area of *** used for oxygen reduction performance,the half-wave potential was−0.24 V,and the electron transfer number was 3.45,indicating the main reaction process was the transfer of four *** detailed electrocatalytic performance and underlying mechanism were investigated in this *** study provides a novel approach for the design of catalysts with new compositions and new structures,which are significant for promoting the commercialization of fuel cells.