Shape-controlled Pt nanocubes directly grown on carbon supports and their electrocatalytic activity toward methanol oxidation  

作　　者：Hee Jin Kim Bibi Ruqia Mi Sung Kang Su Bin Lim Ran Choi Ki Min Nam Won Seok Seo Gaehang Lee Sang-Il Choi 

机构地区：[1]Department of Chemistry and Green-Nano Materials Research Center,Kyungpook National University [2]Department of Chemistry,KAIST [3]Department of Chemistry,Mokpo National University [4]Department of Chemistry,Sogang University [5]Korea Basic Science Institute(KBSI) and University of Science and Technology

出　　处：《Science Bulletin》2017年第13期943-949,共7页科学通报（英文版）

基　　金：supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(NRF-2015R1D1A3A01019467,NRF2017R1D1A1B03031892) and KBSI(D37614)

摘　　要：Synthesis of shape-controlled Pt nanocrystals is substantial and important for enhancing chemical and electrochemical reactions.However,the removal of capping agents,shape-controlling chemicals,on Pt surfaces is essential prior to conducting the catalytic reactions.Here we report a facile one-pot synthesis of Pt nanocubes directly grown on carbon supports(Pt nanocubes/C) with modulating the kinetic reaction factors for shaping the nanocrystals,but without adding any capping agents for preserving the clean Pt surfaces.Well-dispersed Pt nanocubes/C shows enhanced activity and long-term stability toward methanol oxidation reaction compared to the commercial Pt/C catalyst.Synthesis of shape-controlled Pt nanocrystals is substantial and important for enhancing chemical and electrochemical reactions. However, the removal of capping agents, shape-controlling chemicals, on Pt surfaces is essential prior to conducting the catalytic reactions. Here we report a facile one-pot synthesis of Pt nanocubes directly grown on carbon supports （Pt nanocubes/C） with modulating the kinetic reaction factors for shaping the nanocrystals, but without adding any capping agents for preserving the clean Pt surfaces. Well-dispersed Pt nanocubes/C shows enhanced activity and long-term stability toward metha- nol oxidation reaction compared to the commercial Pt/C catalyst.

关 键 词：Platinum Nanocube Shape-control Kinetic product Methanol oxidation 

分 类 号：O643.36[理学—物理化学] TB383.1[理学—化学]