快速微波法制备掺氮石墨烯用于碱性氧还原电催化剂

引用本文: 汪忠伟, 黎波, 辛宇尘, 刘建国, 姚颖方, 邹志刚. 快速微波法制备掺氮石墨烯用于碱性氧还原电催化剂[J]. 催化学报, 2014, 35(4): 509-513. doi: 10.1016/S1872-2067(14)60016-4 shu

Citation: Zhongwei Wang, Bo Li, Yuchen Xin, Jianguo Liu, Yingfang Yao, Zhigang Zou. Rapid synthesis of nitrogen-doped graphene by microwave heating for oxygen reduction reactions in alkaline electrolyte[J]. Chinese Journal of Catalysis, 2014, 35(4): 509-513. doi: 10.1016/S1872-2067(14)60016-4 shu

快速微波法制备掺氮石墨烯用于碱性氧还原电催化剂

汪忠伟 ^a,b, ,
黎波 ^a,b, ,
辛宇尘 ^a,b, ,
刘建国 ^{a,b,
,} ,
姚颖方 ^a,b, ,
邹志刚 ^{a,b,
,}

通讯作者: 刘建国, 邹志刚; 刘建国, 邹志刚

基金项目:
国家自然科学基金(21176111) (21176111)

国家重点基础研究发展计划(973计划, 2013CB632404) (973计划, 2013CB632404)

国家高技术研究发展计划(863计划, 2011AA11A271) (863计划, 2011AA11A271)

江苏高校优势学科建设工程资助项目.

摘要: 采用微波法在氨气气氛下快速加热石墨烯(G)制备了含氮量在4.05 wt%-5.47 wt%的掺氮石墨烯(NG). 将上述的掺氮石墨烯用作碱性电解质条件下的氧还原电催化剂, 起始还原电势为0.17 V(vs SHE), 接近商用碳载铂催化剂的0.21 V(vs SHE). 采用透射电子显微镜、拉曼光谱和X射线光电子能谱研究了掺氮石墨烯的形貌、结构和掺杂氮原子的键合方式. 结果发现, 掺氮石墨烯的氧还原起始电位随着石墨氮原子含量的提高而上升, 说明石墨类型的氮含量是影响其氧还原催化活性的关键因素. 实验结果表明, 微波法快速制备的掺氮石墨烯在碱性条件下表现出较高的氧还原催化活性, 具有作为碱性燃料电池阴极催化剂的潜力.

关键词:

English

Rapid synthesis of nitrogen-doped graphene by microwave heating for oxygen reduction reactions in alkaline electrolyte

1.
a Eco-materials and Renewable Energy Research Center, Department of Materials Science and Engineering, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, Jiangsu, China;

Corresponding author: 刘建国, 邹志刚; 刘建国, 邹志刚

Received Date: 28 November 2013
Available Online: 20 April 2014
Fund Project:
国家自然科学基金(21176111)

国家重点基础研究发展计划(973计划, 2013CB632404)

国家高技术研究发展计划(863计划, 2011AA11A271)

江苏高校优势学科建设工程资助项目.

Abstract: Nitrogen-doped graphene (NG) with a nitrogen content from 4.05 wt% to 5.47 wt% was rapidly prepared via microwave heating of graphene under NH₃ flow. The as-synthesized NG samples were then used as electrocatalysts in the oxygen reduction reaction (ORR) in alkaline solution. The NG samples showed excellent ORR catalytic activity with an onset potential of 0.17 V, which is comparable to that of commercial Pt/C electrocatalyst (0.21 V). The structure, composition, and nitrogen species of the NG samples were examined by transmission electron microscopy, Raman spectroscopy, elemental analysis and X-ray photoelectron spectroscopy. The onset potential increases with the content of graphite nitrogen in the NG samples, indicating that graphite nitrogen might be the main factor controlling the performance of the NG samples in the ORR. The results showed that NG prepared by rapid microwave heating is a promising ORR catalyst for fuel cells.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

快速微波法制备掺氮石墨烯用于碱性氧还原电催化剂

通讯作者: 刘建国, 邹志刚; 刘建国, 邹志刚

English

Rapid synthesis of nitrogen-doped graphene by microwave heating for oxygen reduction reactions in alkaline electrolyte

Corresponding author: 刘建国, 邹志刚; 刘建国, 邹志刚

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

快速微波法制备掺氮石墨烯用于碱性氧还原电催化剂

通讯作者: 刘建国, 邹志刚; 刘建国, 邹志刚

English

Rapid synthesis of nitrogen-doped graphene by microwave heating for oxygen reduction reactions in alkaline electrolyte

Corresponding author: 刘建国, 邹志刚; 刘建国, 邹志刚

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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