Effect of Magnetic Field on Properties of AuPt Particles Magneto- electrodeposited on Carbon Paper  

磁场对碳纸上磁电沉积的AuPt颗粒性能的影响

作　　者：张锦秋[1,2] 李达[1] 陈苗苗[1] 安茂忠[1,2] 杨培霞[1] 王鹏[2] 

机构地区：[1]哈尔滨工业大学化工学院,哈尔滨150001 [2]哈尔滨工业大学市政环境工程学院水资源与水环境国家重点实验室,哈尔滨150090

出　　处：《Chinese Journal of Chemical Physics》2014年第6期704-710,I0004,共8页化学物理学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China （No.51304056）, the China Postdoctoral Science Foundation （No.2013M531049）, the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, and the Fundamental Research Funds for the Central Universities （No.HIT.NSRIF.2011021）.

摘　　要：AuPt nano particles are bi-functional catalysts for Oxygen Reduction Reaction （ORR） and Oxygen Evolution Reaction （OER） that were taken place on air electrodes in lithium air batteries. Magnetic field has been applied during electrodeposition for the preparation of AuPt particles. With the increase of the magnetic flux density under constant current density, the grain size decreases from - 1μm to 200nm and the activity of the AuPt catalyst increases. The magnetic field oriented vertical to the electric field has a promotion effect on increasing the catalytic ability of AuPt/carbon electrode. By pulse plating, the grain size decreases to about 100nm. By adjusting parameters of the electric field and the magnetic field, controllable in-situ preparation of AuPt catalyst with various morphology and catalytic activity could be achieved.

关 键 词：Magneto-electrodeposition CATALYST Lithium-air battery Air electrode Pulse plating 

分 类 号：O[理学]