A non-precious metal catalyst for oxygen reduction prepared by heat-treating a mechanical mixture of carbon black, melamine and cobalt chloride

作者：Si Yu Jun^*; Xiong Zhong Ping; Chen Chang Guo; Liu Ping; Wu Hui Juan

来源：Chinese Chemical Letters, 2013, 24(12): 1109-1111.

DOI：10.1016/j.cclet.2013.09.002

• Oxygen reduction
• Non-precious metal catalyst
• Preparation
• Mechanical method

A non-precious metal catalyst CoMe/C for the oxygen reduction reaction is prepared by heat-treating a mechanical mixture of carbon black, melamine and cobalt chloride at 600 under nitrogen atmosphere for 2 h. The catalytic activity of CoMe/C is characterized by the electrochemical linear sweep voltammetry technique. The onset reduction potential of the catalyst is 0.55 V (vs. SCE) at a scanning rate of 5 mV/s in 0.5 mol/L H2SO4 solution. The formation of the ORR activity sites of CoMe/C is facilitated by metallic beta-cobalt.

• 出版日期2013-12
• 单位四川大学; 重庆大学