中空碳球包覆的钌/氧化钌的制备及析氧性能研究  

Preparation of Hollow Carbon Sphere Encapsulated Ruthenium/Ruthenium Oxide and Performance Study of Oxygen Evolution Reaction

作　　者：陈振阳 陆新华 田林[1] 唐仕荣[1] CHEN Zhen-yang;LU Xin-hua;TIAN Lin;TANG Shi-rong(School of Materials and Chemical Engineering,Xuzhou Institute of Engineering,Xuzhou 221018,China)

机构地区：[1]徐州工程学院材料与化学工程学院,江苏徐州221018

出　　处：《安徽化工》2023年第1期79-82,88,共5页Anhui Chemical Industry

基　　金：大学生创新创业项目(XCX2021010)。

摘　　要：采用模板法,以SiO2为模板,盐酸多巴胺(PDA)为碳源,通过SiO2构筑具有高度连通的三维多孔结构的氮掺杂中空介孔碳纳米材料(NMHCS),然后以NMHCS为载体,通过简单的预沉淀法将钌负载在碳球表面,制备具有钌负载的氮掺杂中空介孔碳纳米材料电催化剂(Ru/NMHCS),并利用氧气进一步氧化得到Ru/RuO2异质结构电催化剂材料。该异质结构的纳米催化剂材料对析氧反应(OER)表现出显著的电催化活性,电流密度在10 m A·cm^(-2)处的过电位为270 mV,明显优于基准贵金属催化剂RuO2。为贵金属电催化剂的制备提供实验技术参考。In this paper,a template method was used to construct nitrogen-doped hollow mesoporous carbon nanomaterials(NMHCS)with a highly connected three-dimensional porous structure by using SiO2as a template and dopamine hydro-chloride(PDA)as a carbon source.A simple pre-precipitation method loads ruthenium on the surface of carbon spheres toprepare a nitrogen-doped hollow mesoporous carbon nanomaterial electrocatalyst(Ru/NMHCS)with ruthenium support,and further oxidizes it with oxygen to obtain a Ru/RuO2heterostructure electrocatalyst Material.The heterostructured nano-catalyst material exhibits remarkable electrocatalytic activity for OER with an overpotential of 270 m V at a current densityof 10 m A·cm^(-2),which is significantly better than that of the benchmark noble metal catalyst RuO2.Provide experimentaltechniques for the preparation of noble metal electrocatalysts.

关 键 词：中空结构 Ru/RuO2异质结 析氧反应 

分 类 号：O644.1[理学—物理化学]