热处理碳载Fe-三聚氰胺及Fe-g-C3N4催化剂的氧还原催化性能

引用本文: 李赏, 王家堂, 陈锐鑫, 赵伟, 钱柳, 潘牧. 热处理碳载Fe-三聚氰胺及Fe-g-C₃N₄催化剂的氧还原催化性能[J]. 物理化学学报, doi: 10.3866/PKU.WHXB201302221 shu

Citation: LI Shang, CHEN Rui-Xin, ZHAO Wei, QIAN Liu, PAN Mu, Catalytic Performance of Heat-Treated Fe-Melamine/C and Fe-g-C₃N₄/C Electrocatalysts for Oxygen Reduction Reaction[J]. Acta Physico-Chimica Sinica, doi: 10.3866/PKU.WHXB201302221 shu

热处理碳载Fe-三聚氰胺及Fe-g-C₃N₄催化剂的氧还原催化性能

通讯作者: 潘牧,

基金项目:
湖北省自然科学基金项目(2012FFB05106) (2012FFB05106)

国家重点基础研究发展计划项目(973) (2012CB215504)资助 (973) (2012CB215504)

摘要:

分别以三聚氰胺和三聚氰胺的聚合物为配体, 采用浸渍法合成了两种氧还原反应(ORR)催化剂Fe-N/C(1)和Fe-N/C(2). 通过X射线衍射光谱(XRD)、X射线光电子能谱(XPS)、透射电子显微镜(TEM)和电化学测试对催化剂的成分、形貌和电催化性能进行了表征. 结果表明, 以三聚氰胺聚合物为配体制备的Fe-N/C具有更高的ORR催化活性. 在高温热处理过程中, 催化剂表面能形成更多的石墨N活性点, 是其ORR性能提高的重要原因.

关键词:

English

Catalytic Performance of Heat-Treated Fe-Melamine/C and Fe-g-C₃N₄/C Electrocatalysts for Oxygen Reduction Reaction

1.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China

Corresponding author: ,

Received Date: 15 October 2012
Available Online: 25 March 2013
Fund Project:
湖北省自然科学基金项目(2012FFB05106)

国家重点基础研究发展计划项目(973) (2012CB215504)资助

Abstract:

Melamine and its polymer (g-C₃N₄) were used as ligands to prepare Fe-N/C electrocatalysts for the oxygen reduction reaction (ORR) by an impregnation method. The composition, morphology and electrocatalytic activity of the catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and electrochemical measurements. The Fe-N/C catalyst using g-C₃N₄ as a complex ligand showed higher activity in the ORR than that with melamine. The formation of quaternary N active sites on the surface of the catalyst during heat treatment helps to improve their performance in the ORR.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

热处理碳载Fe-三聚氰胺及Fe-g-C₃N₄催化剂的氧还原催化性能

通讯作者: 潘牧,

English

Catalytic Performance of Heat-Treated Fe-Melamine/C and Fe-g-C₃N₄/C Electrocatalysts for Oxygen Reduction Reaction

Corresponding author: ,

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