摘要
目的:制备氮化碳固态材料,提升电催化合成氨反应的活性和选择性。方法:选用尿素为原料进行一步热处理得到氮化碳材料,进行不同电位下的电化学性能测试。结果:在0.1 mol/L KOH电解液中,-0.2 V vs.RHE电压下,NH_(3)产率最高可达3.4μg/(h·mgcat),法拉第效率达到3.9%。结论:氮化碳催化剂具有较高的固氮活性、选择性以及稳定性,适用于电催化合成氨的发展需求。
Objective:Improve the activity and selectivity of electrocatalytic ammonia synthesis.Methods:In this paper,urea is used as the raw material for one-step heat treatment to obtain carbon nitride materials.Results:The electrochemical performance test under different potentials showed that in 0.1 mol/L KOH electrolyte,under-0.2 V vs.RHE voltage,the NH_(3) yield reached 3.4μg/(h·mgcat),and the FE reached 3.9%.Conclusion:The catalyst has high nitrogen fixation activity and selectivity,and has good stability,and is suitable for the development needs of electrocatalytic ammonia synthesis.
作者
杨雨彤
殷浩
张婷婷
张梓轩
王寅
YANG Yutong;YIN Hao;ZHANG Tingting;ZHANG Zixuan;WANG Yin(Nano Innovation Institute,Chemistry and Materials College,Inner Mongolia University for Nationalities,Inner Mongolia Tongliao 028000)
出处
《生物化工》
2021年第2期27-29,32,共4页
Biological Chemical Engineering
基金
内蒙古民族大学研究生科研创新项目(NMDSS1938)
内蒙古自治区科技计划项目(2019GG261)
内蒙古自治区科技成果转化项目(CGZH2018156)。
关键词
电催化
氮化碳
产氨速率
法拉第效率
electrocatalysis
carbon nitride
ammonia production rate
Faraday efficiency
