Active sites engineering of Pt/CNT oxygen reduction catalysts by atomic layer deposition

作     者：Jie Gan Jiankang Zhang Baiyan Zhang Wenyao Chen Dongfang Niu Yong Qin Xuezhi Duan Xinggui Zhou Jie Gan;Jiankang Zhang;Baiyan Zhang;Wenyao Chen;Dongfang Niu;Yong Qin;Xuezhi Duan;Xinggui Zhou

作者机构：State Key Laboratory of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001ShanxiChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第6期

页      面：59-66,I0003页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：financially supported by the Natural Science Foundation of China(21922803 and 21776077) the Shanghai Natural Science Foundation(17ZR1407300 and 17ZR1407500) the Program for the Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning the Shanghai Rising-Star Program(17QA1401200) the State Key Laboratory of Organic-Inorganic Composites(oic-201801007) the Open Project of State Key Laboratory of Chemical Engineering(SKLChe-15C03) 

主　　题：Oxygen reduction Pt/CNT catalyst Atomic layer deposition Active sites 

摘      要：Understanding carbon-supported Pt-catalyzed oxygen reduction reaction(ORR)from the perspective of the active sites is of fundamental and practical *** this study,three differently sized carbon nanotube-supported Pt nanoparticles(Pt/CNT)are prepared by both atomic layer deposition(ALD)and impregnation *** performances of the catalysts toward the ORR in acidic media are comparatively studied to probe the effects of the sizes of the Pt nanoparticles together with their distributions,electronic properties,and local *** ALD-Pt/CNT catalysts show much higher ORR activity and selectivity than the impregnation-Pt/CNT *** outstanding ORR performance is ascribed to the well-controlled Pt particle sizes and distributions,desirable Pt^04f binding energy,and the Cl-free Pt surfaces based on the electrocatalytic measurements,catalyst characterizations,and model *** insights reported here could guide the rational design and fine-tuning of carbon-supported Pt catalysts for the ORR.