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关于举办题为“Atomically Dispersed Ni(I) as the Active Site for Electrochemical CO2 Reduction”学术报告的通知
 
发布时间:2018-08-20 发布者:杨利 字体<    >

   

  应煤转化国家重点实验室陈加藏研究员邀请,新加坡南洋理工大学刘彬教授来所访问,并做题为“Atomically Dispersed Ni(I) as the Active Site for Electrochemical CO2 Reduction”的学术报告。 

  时  间2018822日(周三),上午10:00 

  地  点:能源楼三层报告厅 

  报告摘要: 

  Electrochemical reduction of CO2 to chemical fuel offers a promising strategy for managing the global carbon balance, but presents challenges for chemistry due to the lack of effective electrocatalyst. Here in this talk, I am going to present atomically dispersed nickel on nitrogenated graphene as an efficient and durable electrocatalyst for CO2 reduction. Based on operando X-ray absorption and photoelectron spectroscopy measurements, the monovalent Ni(I) atomic center with a d9 electronic configuration was identified as the catalytically active site. The single-Ni-atom catalyst exhibits high intrinsic CO2reduction activity, reaching a specific current of 350A gcatalyst-1 and turnover frequency of 14,800h-1 at a mild overpotential of 0.61V for CO conversion with 97% Faradaic efficiency. The catalyst maintained 98% of its initial activity after 100h of continuous reaction at CO formation current densities as high as 22 mA cm-2. 

  个人简介: 

  Bin Liu received his B.Eng. (1st Class Honors) and M.Eng. degrees in Chemical Engineering from the National University of Singapore, and obtained his Ph.D. degree in Chemical Engineering from University of Minnesota in 2011. Thereafter, he moved to University of California, Berkeley and worked as a postdoctoral researcher in Department of Chemistry during 2011 – 2012 before joining School of Chemical and Biomedical Engineering at Nanyang Technological University as an Assistant Professor in 2012. He is now an Associate Professor at NTU. His main research interests are electrocatalysis, photovoltaics and photoelectrochemistry. More information can be found at http://www.ntu.edu.sg/home/liubin/home.html. 

    

  煤转化国家重点实验室院青促会煤化所小组 

  人事教育处

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