中国科学院 ARP系统 继续教育网 English 邮箱登录 网站地图
您现在的位置:首页>通知公告>学术报告
Strongly Coupled 2D nanomaterials in 3D NanoHybrid for Efficient Electrochemical and Photoelectrochemical Water Splitting
更新日期:2017-07-24  

 目:Strongly Coupled 2D nanomaterials in 3D NanoHybrid for Efficient Electrochemical and Photoelectrochemical Water Splitting
报告人:侯 阳 研究员

 位:浙江大学
 间:2017/7/27 10:30
 点:海西院2#235会议室 

  Solar-driven photoelectrochemical (PEC) water splitting for hydrogen and oxygen productions is recognized as a promising technology for the conversion and storage of renewable energies. The key to increase the efficiency of PEC water splitting is the development of highly active and stable electrocatalysts/cocatalysts that can serve as electron (or hole) traps to promote charge separation at the interfaces between the photoelectrode and electrocatalyst, yet only few integrated PEC systems have been reported due to materials incompatibility and interfacial defects. Here we developed a novel 3D hybrid electrocatalyst consisting of cobalt sulfide nanosheets strongly coupled with vertical nickel selenide nanosheets grown on electrochemically exfoliated graphene foil. Benefiting from the highly conductive support of graphene foil, strong interfacial coupling and interface reconstruction between nickel selenide and the grafted cobalt sulfide through Ni-S bonding, and the unique 3D hierarchical structure, the resulting hybrid electrode exhibits excellent electrochemical and PEC activity towards water splitting in both basic media and real river water. This result opens a new avenue toward the design of efficient 2D hybrid electrocatalysts for large-scale water-splitting technology. 

   阳研究员,博士生导师。博士毕业于大连理工大学环境工程专业。2011年至2017,分别在美国加州大学河滨分校、美国威斯康星大学密尔沃基分校和德国德累斯顿工业大学从事博士后研究工作。侯阳博士长期从事能源与环境催化新材料研究,在相关领域内取得了一系列重要成果,以第一/通讯作者已发表Adv. Mater. 4篇,Angew. Chem. Int. Ed. 1篇,Nano Lett. 3篇,Energy Environ. Sci. 1篇,Environ. Sci. Technol. 3篇,Adv. Energy Mater. 1篇和Adv. Funct. Mater. 2篇,以及其它SCI论文共65篇。13篇入选ESI高被引和ESI热点论文。论文总被引用3,200余次,H因子为31。多篇论文被AdvancedScienceNews, Nanotechnology Weekly, Materialsviewschina, HighBeam Research等科技媒体和网站予以亮点报道。