Catalytic performance of hybrid Pt@ZnO NRs on carbon fibers for methanol electro-oxidation

作     者：Dongyan Li Chen Gu Feng Han Zhaoxiang Zhong Weihong Xing 

作者机构：Department of Chemical Engineering and Materials Nanjing Polytechnic Institute State Key Laboratory of Materials-Oriented Chemical Engineering National Engineering Research Center for Special Separation Membrane Nanjing Tech University 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2017年第25卷第12期

页      面：1871-1876页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学] 

基　　金：Supported by the National Key R&D Program(2016YFC0204000) the National Natural Science Foundation of China(U1510202) the Jiangsu Province Scientific Supporting Project(BK20170046 and BE2015023) 

主　　题：Carbon fibers ZnO nanorods Pt Magnetron sputtering Methanol electro oxidation 

摘      要：A novel Pt@ZnO nanorod/carbon fiber （NR/CF） with hierarchical structure was prepared by atomic layer deposition combined with hydrothermal synthesis and magnetron sputtering （MS）. The morphology of Pt changes from nanoparticle to nanorod bundle with controlled thickness of Pt between 10 and 50 nm. Significantly, with the increase of voltage from 0 to 0.6 V （vs. standard calomel electrode）, the prompt photocurrent generated on ZnO NR/CF increases from 0235 to 0.725 mA. Besides, the Pt@ZnO NR/CF exhibited higher electrochemical active surface area （ECSA） value, better methanol oxidation ability and CO tolerance than Pt@CF, which demonstrated the importance of the multifunctional ZnO support. As the thickness of Pt increasing from 10 to 50 rim, the ECSA values were improved proportionally, leading to the improvement of methanol oxidation ability. More importantly, UV radiation increased the density of peak current of Pt@ZnO NR/CF towards methanol oxidation by additional 42.4%, which may be due to the synergy catalysis of UV light and electricity.