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生物质焦油衍生氮掺杂多孔碳负载Co_3O_4纳米晶的制备及双功能氧反应催化
Authors
李德念
袁浩然
+3 more
阳济章
陈会兵
陈勇
Publication date
1 January 2020
Publisher
Abstract
以生物质焦油活化多级孔碳为骨架,通过一步水热合成同时实现氮掺杂和Co_3O_4纳米粒子负载,获得Co_3O_4@N/C复合催化剂。对比研究结果表明,凭借复合材料中活性Co_3O_4和N掺杂结构之间的协同效应, Co_3O_4@N/C复合催化剂对氧还原(ORR)和析氧反应(OER)均表现出较高的催化活性,ORR和OER启动电位电势差ΔE为0.99V;其中,ORR极限扩散电流密度为-5.10mA/cm~2,与贵金属Pt/C相当。此外,Co_3O_4@N/C具有优异的氧还原稳定性,在经3000次循环伏安法扫描后,Co_3O_4@N/C的极限扩散电流密度仍能保持89.9%。这一生物质焦油衍生碳所构筑的N掺杂多孔碳负载Co_3O_4纳米晶复合材料在燃料电池和金属空气电池等领域具有巨大的应用潜力
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/33699
Last time updated on 04/12/2021
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/33697
Last time updated on 04/12/2021