Mn(Co)氧化物可控制备及其对氧还原反应催化性能的研究
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- 英文论文题名：Controllable Synthesis of Co(Mn) Oxides and Their Catalytic Activity to Oxygen Reduction Reaction
- 论文作者：姜鲁华 ; 孙公权
- 英文论文作者：Luhua Jiang ; Gongquan Sun ; Fuel Cell & Battery Division ; Dalian National Laboratory for Clean Energy ; Dalian Institute of Chemical Physics ; CAS
- 年：2016
- 作者机构：中国科学院大连化学物理研究所大连洁净能源国家实验室(筹)燃料电池研究部;
- 论文关键词：氧还原反应 ; 氧化锰 ; 氧化钴 ; 物相 ; 晶面
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：O643.36
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：138k
- 原文格式：D
- 会议级别：全国
摘要
氧还原反应(ORR)是燃料电池、金属空气电池等环境友好发电装置阴极的主要反应,Co(Mn)过渡金属氧化物作为贵金属替代催化剂,对ORR具有较好的催化活性,已成为近年来的研究热点。然而,过渡金属氧化物的形貌和金属价态丰富、粒径难以控制,尤其是难以实现粒径、晶相和形貌等单一因素变化,以研究上述因素对ORR催化性能的影响。我们采用溶剂热法、辅助电位控制策略,实现了对Co(Mn)过渡金属氧化物粒径、物相、晶面可控制备,在此基础上,系统研究了上述因素对ORR催化活性的影响。进而提出了过渡金属氧化物型催化剂活性提升的可能策略。
Oxygen reduction reaction(ORR) is the cathodic reaction of the environmental-clean power sources, such as fuel cells and metal-air batteries. Co(Mn) oxides, as a series of Pt alternatives, have been reported to have promising catalytic activity for oxygen reduction reaction(ORR), owing to their diversified electronic structure. However, the metal valences, particle sizes and morphologies of Co(Mn) oxides are difficult to control. Especially, it is hard to synthesize a series of Co(Mn) oxides with single factor varied, to investigate the influence of the single factor on the ORR activity. In this presentation, I will describe our strategy to control the particle size, crystalline structure and morphology of the Co(Mn) oxides. On this basis, the influence of these factors on the ORR activity will be discussed. Finally, the possible strategies to improve the activity will be put forward.
Oxygen reduction reaction(ORR) is the cathodic reaction of the environmental-clean power sources, such as fuel cells and metal-air batteries. Co(Mn) oxides, as a series of Pt alternatives, have been reported to have promising catalytic activity for oxygen reduction reaction(ORR), owing to their diversified electronic structure. However, the metal valences, particle sizes and morphologies of Co(Mn) oxides are difficult to control. Especially, it is hard to synthesize a series of Co(Mn) oxides with single factor varied, to investigate the influence of the single factor on the ORR activity. In this presentation, I will describe our strategy to control the particle size, crystalline structure and morphology of the Co(Mn) oxides. On this basis, the influence of these factors on the ORR activity will be discussed. Finally, the possible strategies to improve the activity will be put forward.
引文
[1]Liu,J.;Jiang,L.;Zhang,B.;Jin,J.;Su,D-S.;Wang,S.;Sun,G.ACS Catal.2014,4:2998.
[2]Tang,Q.;Jiang,L.;Liu,J.;Wang,S.;Sun,G.ACS Catal.2014,4:457
[3]Liu,J.;Jiang,L.;Tang,Q.;Wang,E.;Qi,L.;Wang,S.;Sun,G.Appl.Catal.B.2015,148-149:212.
[4]Liu,J.;Jiang,L.;Sun,G.Electrochim Acta.2016,submitted.
[2]Tang,Q.;Jiang,L.;Liu,J.;Wang,S.;Sun,G.ACS Catal.2014,4:457
[3]Liu,J.;Jiang,L.;Tang,Q.;Wang,E.;Qi,L.;Wang,S.;Sun,G.Appl.Catal.B.2015,148-149:212.
[4]Liu,J.;Jiang,L.;Sun,G.Electrochim Acta.2016,submitted.