Low-temperature synthesis of nitrogen/sulfur co-doped three-dimensional graphene frameworks as efficient metal-free electrocatalyst for oxygen reduction reaction
Low-temperature synthesis of nitrogen/sulfur co-doped three-dimensional graphene frameworks as efficient metal-free electrocatalyst for oxygen reduction reaction
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DOI：
10.1016/j.carbon.2013.05.067
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发表时间：
2013-10-01
期刊：
影响因子：
10.9
通讯作者：
Feng, Xinliang
中科院分区：
文献类型：
--
作者：
Su, Yuezeng;Zhang, Yi;Feng, Xinliang
无金属氧还原反应催化剂的开发是燃料电池研究中最具挑战性的课题之一。杂原子掺杂石墨烯被认为是有前途的候选材料。在这项工作中，我们开发了一种一锅水热方法来制备三维氮和硫共掺杂石墨烯框架（N/S-GFs），采用氧化石墨烯和硫氰酸铵作为前体。在碱性条件下，N/S-GFs在ORR中表现出优异的催化性能，主要有四种电子转移途径。(C) 2013 Elsevier Ltd.版权所有。
The development of metal-free catalyst for oxygen reduction reaction (ORR) is one of the most challenging tasks in fuel cells. Heteroatom doped graphenes have been recognized as the promising candidate. In this work, we have developed a one-pot hydrothermal approach towards three-dimensional nitrogen and sulfur co-doped graphene frameworks (N/S-GFs) employing graphene oxide and ammonium thiocyanate as the precursors. N/S-GFs manifest excellent catalytic behavior with mainly four electron transfer pathway in ORR in alkaline condition. (C) 2013 Elsevier Ltd. All rights reserved.