Co-N共掺杂碳球的制备及电催化性能  

Preparation and electrocatalytic performance of Co-N co-doped carbon spheres

作　　者：白亚峰 冯勇 杨代辉 薛峰 BAI Ya-feng;FENG Yong;YANG Dai-hui;XUE Feng(State Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Power Sources Co.,Ltd.,Zunyi,Guizhou 563003,China)

机构地区：[1]贵州梅岭电源有限公司,特种化学电源国家重点实验室,贵州遵义563003

出　　处：《电池》2021年第6期587-590,共4页Battery Bimonthly

摘　　要：以无定形金属有机框架(MOF)为前驱体,通过900℃热解制备Co-N共掺杂碳基氧还原反应(ORR)催化剂Co-N/C。XRD和SEM测试结果表明:Co-N/C具有典型的石墨化特征,形貌为直径350~650 nm的球形。该催化剂在0.1 mol/L KOH电解质中具有较好的ORR催化活性,起始电位为0.978 V,半波电位为0.856 V,极限电流密度为6.12 mA/cm^(2),且具有较好的抗CO和抗甲醇中毒性能,应用前景良好。Amorphous metal organic framework(MOF)was used as precursors to prepare Co-N co-doped carbon-based oxygen reduction reaction(ORR)catalyst Co-N/C by pyrolysis at 900℃.XRD and SEM test results showed that the Co-N/C had typical graphitization characteristics,the morphology was spherical with a diameter of 350-650 nm.The catalyst showed fine ORR performance in 0.1 mol/L KOH electrolyte,the initial potential was 0.978 V,the half wave potential was 0.856 V,the limited current density was 6.12 mA/cm^(2),exhibited good anti-CO and anti-methanol poison tolerance,which had good application prospect.

关 键 词：燃料电池 无定形 金属有机框架(MOF) 氧还原反应(ORR) 非贵金属催化剂 Co-N共掺杂碳球 

分 类 号：TM911.42[电气工程—电力电子与电力传动]