Facile synthesis of 3D nanoporous Pd/Co_2O_3 composites with enhanced catalytic performance for methanol oxidation

作     者：Yan-yan SONG Dong DUAN Wen-yu SHI Hai-yang WANG Zhan-bo SUN 宋衍滟;段栋;时文宇;王海洋;孙占波

作者机构：School of ScienceXi’an Jiaotong UniversityXi’an 710049China Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter of Ministry of EducationXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Shaanxi for Advanced Functional Materials and Mesoscopic PhysicsXi’an Jiaotong UniversityXi’an 710049China 

基　　金：Project(51371135)supported by the National Natural Science Foundation of China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2018年第28卷第4期

页      码：676-686页

摘      要：To simultaneously reduce noble metal Pd usage and enhance electrocatalytic performance for methanol oxidation,Pd/Co2O3 composites with ultrafine three-dimensional(3D)nanoporous structures were designed and synthesized by simple one-step dealloying of a melt-spun Al-Pd-Co alloy with an alkaline *** electrocatalytic activity in alkaline media was determined by a Versa-STAT MC *** results indicate that the typical sizes of the ligaments and pores of the composites were approximately 8-9 *** Co2O3 was uniformly distributed on the Pd ligament *** the as-prepared samples,the nanoporous Pd/Co2O3 composite generated from dealloying of the Al84.5Pd15Co0.5 alloy had the best electrocatalytic activity,and its activity was enhanced by approximately 230%compared with the nanoporous Pd from dealloying of *** improvement of the electrocatalytic performance was mainly attributed to the electronic modification effect between Pd and Co as well as the bifunctional mechanism between Pd and Co2O3.

主 题 词：nanoporous Pd/Co2O3 dealloying Al-Pd-Co alloy electrocatalytic performance methanol oxidation 

学科分类：081705[081705] 08[工学] 0817[工学-轻工类] 0805[工学-能源动力学] 080502[080502] 

核心收录：

D　O　I：10.1016/S1003-6326(18)64700-4

馆 藏 号：203287475...