硫氮共掺杂的有序介孔碳用于氧还原反应的实验研究  

Experimental study of sulfur and nitrogen co-doped ordered mesoporous carbons for oxygen reduction reaction

作　　者：王海文[1] 任红鑫 宋晓增 丁俊杰[1] 王晨飞[1] 殷馨[1] 

机构地区：[1]华东理工大学化学与分子工程学院,上海200237

出　　处：《实验技术与管理》2016年第6期55-58,62,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(50902049);上海高校实验技术队伍建设计划资助项目(YJ0114204)

摘　　要：硫氮共掺杂的有序介孔碳(SN-OMC)是通过一步复制路线合成的,双硫腙在SN-OMCs的制备过程中作为单一的碳、硫、氮前驱物。对此非金属催化剂进行物理化学表征,并在碱性电解质中对其催化氧还原反应(ORR)的电化学性进行了评估。在900℃下得到的SN-MOC展现了用于ORR反应的高电催化活性,以及可观的耐久性和耐甲醇性;介孔碳孔道中硫和氮的协同效应有利于提高SN-MOC的氧还原催化活性。The ordered mesoporous carbons co-doped with sulfur and nitrogen （SN-OMC）are synthesized via one-step nanocasting route.Diphenylthiocarbazone is used as a single precursor for carbon,sulfur and nitrogen in the preparation of SN-OMCs.These metal-free catalysts are subj ected to physicochemical characterization and electrochemical evaluation toward the oxygen reduction reaction （ORR）in an alkaline electrolyte.SN-OMC obtained at 900 ℃ exhibits a high electrocatalytic activity for ORR and the impressive durability and methanol-torrence.The synergistic effect of nitrogen and sulfur in mesoporous carbon walls may contribute to high oxygen reduction performance of SN-OMC.

关 键 词：非金属催化剂 介孔碳 氧还原反应 

分 类 号：O643.36[理学—物理化学]