摘要
本研究通过简单的自上而下的方法成功改进了氮化碳材料,并通过引入氧化石墨烯制备出薄层的石墨烯复合材料(CoO_(x)/PCN/RGO),该复合材料在氧还原反应和氧析出反应中表现出良好的双功能电催化活性(ΔE=0.95 V)和稳定性。CoO_(x)/PCN/RGO复合物作为锌-空气电池的阴极材料时,显示出优于Pt/C+Ir/C的充放电性能。CoO_(x)/PCN/RGO复合材料的优异催化性能主要归因于其薄层结构、大的比表面积和充分暴露的活性中心。
In this work,carbon nitride materials have been successfully improved by a simple top-down method and thin-layer graphene composites(CoO_(x)/PCN/RGO)have been prepared by introducing graphene oxide,showing good bifunctional electrocatalytic activity(ΔE=0.95 V)and stability in the oxygen reduction and oxygen evolution reactions.The zinc-air battery with the CoO_(x)/PCN/RGO composites exhibited greater charge/discharge performance than Pt/C+Ir/C which are mainly attributed to the structure of the thin layer,the large surface area and the fully exposed active sites.
作者
孙晓玲
弓巧娟
梁云霞
巩鹏妮
SUN Xiaoling;GONG Qiaojuan;LIANG Yunxia;GONG Pengni(College of Chemistry and Materials Sciences,Shanxi Normal University,Linfen 041004,China;Department of Applied Chemistry,Yuncheng College,Yuncheng 044000,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2021年第8期1-6,共6页
Materials Reports
基金
国家自然科学基金(U1810110)
山西省重点研发项目(201803D121030)
山西省盐湖区省教科局项目。
