非贵金属基氮掺杂碳材料Co@CN的制备及其催化性能的优化  

Preparation of Non-noble Metal Nanoparticles Supported on Nitrogen-doped Carbon Co@CN and Optimization of Its Catalytic Performance

作　　者：陈君[1] 

机构地区：[1]西华师范大学化学化工学院,化学合成与污染控制四川省重点实验室,四川南充637000

出　　处：《广州化工》2017年第17期85-87,共3页GuangZhou Chemical Industry

摘　　要：通过水热法合成制备了Co-MOF材料,然后将其置于高温下热解,得到Co@CN纳米催化剂。Co@CN的结构和组成通过X射线衍射谱(XRD)、扫描电子显微镜(SEM)等表征,Co@CN催化剂的催化性能通过氧还原反应(ORR)测试。为了探究热解温度对Co@CN催化剂在氧还原反应中催化性能的影响,将制备得到的Co-MOF材料在不同温度下热解,分别得到Co@CN-600,Co@CN-700,Co@CN-800,Co@CN-900,通过氧还原反应测试不同热解温度下Co@CN催化剂的催化性能。结果表明,当热解温度为900℃时制得的Co@CN-900相比其他温度下制得的催化剂而言,其催化活性更高。Co-MOF materials were synthesized through hydrothermal method, these materials were pyrolyzed at high temperatures to prepare nitrogen-doped carbon nanocatalysts Co@ CN. Its structure and composition were analyzed by X- ray diffraction （XRD） and scanning electron microscopy （SEM）, and its catalytic performance were tested by oxidation reduction reaction. Co- MOF materials were pyrolyzed at different temperatures to prepare a series of catalyst for investigate the effect of pyrolyzed temperature on the catalytic performance, catalytic activities of these catalysts were tested by oxidation reduction reaction. The experimental results indicated that Co@ CN-900 possessed better catalytic activity for oxidation reduction reaction.

关 键 词：燃料电池 氧还原反应 氮掺杂碳 纳米催化剂 

分 类 号：O69[理学—化学]