Nanosized Rh grown on single-walled carbon nanohorns for efficient methanol oxidation reaction

作     者：Xiang-Jie Guo Qi Zhang Ya-Nan Li Yang Chen Lu Yang Hai-Yan He Xing-Tao Xu Hua-Jie Huang Xiang-Jie Guo;Qi Zhang;Ya-Nan Li;Yang Chen;Lu Yang;Hai-Yan He;Xing-Tao Xu;Hua-Jie Huang

作者机构：Collegeof Mechanics and Materials Hohai UniversityNanjing 210098China International Center for Materials Nanoarchitectonics(WPI-MANA)National Institute for Materials ScienceIbaraki 305-0044Japan 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第6期

页      面：2108-2117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：financially supported by the National Natural Science Foundation of China (No.51802077) the Fundamental Research Funds for the Central Universities (No. B210202093) 

主　　题：Rhodium Carbon nanohorns Electrocatalysts Methanol oxidation Fuel cells 

摘      要：Reasonable design and controllable synthesis of non-Pt catalysts with high methanol oxidation activity are regarded as a valid way to promote the large-scale com-mercial applications of direct methanol fuel cells(DMFCs).Herein,we develop a convenient and cost-ef-fective approach to the successful fabrication of nanosized Rh grown on single-walled carbon nanohorns(Rh/SWCNH)as anode catalysts for *** unique architectural configuration endows the as-obtained hybrids with a series of intriguing structural merits,including large specific surface areas,abundant opened holes,optimized electronic structures,homogeneous Rh dispersion,and good electrical *** a consequence,the resulting Rh/SWCNH catalysts exhibit exceptional elec-trocatalytic properties in terms of a large electrochemically active surface area of 102.5 m^(2)·g^(-1),a high mass activity of 784.0 mA·mg^(-1),as well as reliable long-term durability towards the methanol oxidation reaction in alkaline media,thereby holding great potential as alternatives for com-mercial Pt/carbon black and Pd/carbon black catalysts.