摘要
以六水合氯化铈为前驱体、氯化钠为模板、牛奶为碳源,制备CeO_(2)修饰的三维氮、磷掺杂的碳基催化剂(CeO_(2)-NPC)。通过旋转圆盘电极(RDE)以及旋转环盘电极(RRDE),分析催化剂的制备条件对氧还原反应(ORR)过程的影响;结合X射线光电子能谱(XPS)、拉曼光谱等表征,探究合成过程对结构的影响。通过改变煅烧温度发现,温度升高的过程中N、P等杂元素会随着小分子溢出,碳载体上的缺陷程度增加,CeO_(2)的质量分数一直处于上升趋势。
CeO_(2)-modified three-dimensional nitrogen-and phosphorus-doped carbon-based catalysts(CeO_(2)-NPC)were prepared with cerium chloride hexahydrate as the precursor,sodium chloride as the template,and milk as the carbon source.The results of rotating disc electrode(RDE)and rotating ring-disc electrode(RRDE)tests were used to analyze the influence of catalyst preparation conditions on the oxygen reduction reaction(ORR)process.The influence of the synthesis process on the structure was investigated by X-ray photoelectron spectroscopy(XPS)and Raman spectroscopy.Heteroelements such as N and P spilled out with small molecules during calcination temperature increase.In this process,the degree of defects on the carbon carriers was increasing and the content of CeO_(2)was invariably in an increasing trend.
作者
程喆
陈鹏华
满小
常迎
贾晶春
贾美林
Cheng Zhe;Chen Penghua;Man Xiao;Chang Ying;Jia Jingchun;Jia Meilin(College of Chemistry and Environmental Science,Inner Mongolia Normal University,Key Laboratory of Green Catalysis of Inner Mongolia Autonomous Region,Cooperative Innovation Center of Water Environment Safety of Inner Mongolia Autonomous Region,Hohhot Inner Mongolia 010022,China)
出处
《石油化工高等学校学报》
CAS
2022年第2期29-36,共8页
Journal of Petrochemical Universities
基金
国家自然基金地区基金项目(22062019)
内蒙古自治区自然科技基金面上项目(2019MS2017)
水环境安全协同创新中心项目(XTCX003)
内蒙古自治区科技计划项目(2020PT0003)。
关键词
氧还原
氧化铈
两电子
四电子
Oxygen reduction
Cerium oxide
Two-electron
Four-electron
