非贵金属催化剂S-doped p-Fe-g-C3N4@KB/rGO的改性制备和氧还原催化性能研究
Research of modifying of S-doped p-Fe-g-C3N4@KB/rGO as non-precious metal catalyst for oxygen reduction reaction
曾凯 1余培凯 2程志生 2余华平1
作者信息
- 1. 闽南科技学院生命科学与化学学院,福建泉州 362332
- 2. 厦门理工学院材料科学与工程学院,福建厦门 361024
- 折叠
摘要
开发用于电催化氧还原反应(ORR)的高活性铁-氮-碳催化剂是未来能源技术的关键.采用以Fe盐为金属源,以类石墨相氮化碳为氮源,分别以炭黑和石墨烯复合载体为载体,掺杂不同类型S源,在高温下二次热解以制备在酸性条件下具有高ORR性能和稳定性的非贵金属氧还原催化剂S-doped p-Fe-g-C3N4@KB/rGO.通过电化学性能测试和电化学稳定性实验等电化学测试方法,系统地研究了 S-doped p-Fe-g-C3N4@KB/rGO催化剂.电化学测试表明所制备的非贵金属催化剂在酸性条件下仍具有较为优异的催化活性.稳定性ADT测试表明循环4 000圈后,催化剂活性仅衰退15 mV.
Abstract
Developing highly active iron-nitrogen-carbon catalysts for electrocatalytic oxygen reduction reactions(ORR)is piv-otal to future energy technology.In this work,the non-precious metal oxygen reduction catalyst S-doped p-Fe-g-C3N4@KB/rGO with Fe salt was used as metal source,graphite-like phase carbon nitride was used as nitrogen source,and composite of carbon black graphene and KB was used as carbon support.Herein,through electrochemical performance test,the ORR catalytic activity and electrochemical stability of this S-doped p-Fe-g-C3N4@KB/rGO electrocatalyst were systematically investigated.These re-sults not only indicated that this as-prepared non-precious metal catalyst showed excellent catalytic activity under acidic condi-tions,but also represented that the catalytic activity of the catalyst deteriorated by only 15 mV after 4 000 cycles by the ADT test.
关键词
氧还原反应/非贵金属催化剂/石墨烯/类石墨烯氮化碳Key words
oxygen reduction reaction/non-precious metal catalyst/graphene/graphitic carbon nitri引用本文复制引用
基金项目
福建省自然科学基金(2014J05064)
出版年
2024
NETL
NSTL
万方数据