Ultrasmall AuPd nanoclusters on amine-functionalized carbon blacks as high-performance bi-functional catalysts for ethanol electrooxidation and formic acid dehydrogenation  

作　　者：Yuhuan Cui Ming Zhao Yining Zou Junyu Zhang Jiuhui Han Zhili Wang Qing Jiang 

机构地区：[1]Key Laboratory of Automobile Materials,Ministry of Education,School of Materials Science and Engineering,Jilin University,Changchun 130022,Jilin,China [2]Frontier Research Institute for Interdisciplinary Sciences(FRIS),Tohoku University,Sendai 980-8578,Japan

出　　处：《Journal of Energy Chemistry》2022年第5期556-563,共8页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China (51901083);the Fundamental Research Funds for the Central Universities。

摘　　要：The synthesis of ultrasmall metal nanoclusters(NCs) with high catalytic activities is of great importance for the development of clean and renewable energy technologies but remains a challenge. Here we report a facile wet-chemical method to prepare ~1.0 nm Au Pd NCs supported on amine-functionalized carbon blacks. The Au Pd NCs exhibit a specific activity of 5.98 mA cm_(AuPd)^(-2)and mass activity of 5.25 A mg_(auPd)^(-1) for ethanol electrooxidation, which are far better than those of commercial Pd/C catalysts(1.74 mAcm_(AuPd)^(-2) and 0.54 A mg_(Pd)^(-1) ). For formic acid dehydrogenation, the Au Pd NCs have an initial turn over frequency of 49339 h^(-1) at 298 K without any additive, which is much higher than those obtained for most of reported Au Pd catalysts. The reported synthesis may represent a facile and low-cost approach to prepare other ultrasmall metal NCs with high catalytic activities for various applications.

关 键 词：Ethanol electrooxidation Formic acid dehydrogenation AuPd NANOCLUSTERS Bi-functional catalyst 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O643.36[理学—物理化学]