报告人：Hong Jin Fan (Schoolof Physical and Mathematical Sciences, Nanyang Technological University,Singapore)
报告题目：Design andTailoring Bimetallic Nanostructured Electrocatalysts
报告时间：2：00pm, November 27th
报告地点：909-B
摘要
Water electrolysis, fuel cells, and metal-airbatteries all require efficient and cheap electrocatalysts that cansignificantly lower the overpotentials. Bimetallic alloys and their oxides ornitrides compounds are particularly interesting as non-precious metalelectrocatalyst materials for HER and OER applications, because of theirtailorable electronic structure, electric conductivity, and surface chemistry.Our group has been actively working on nanoarray materials directly onconductive substrates as electrodes for both supercapacitor, batteries as wellas electrocatalyst.
In this talk, I will present two results: (1)RF nitrogen and carbon plasma as a highly effective technique for conversionreaction and surface functionalization of nanostructured electrodes. The plasmatreatment not only generates hierarchical nanostructure surface, but alsoinduces N-doping as well as hydrophilicity. This is a fast and NH3-freestrategy to synthesize metal nitrides for wide applications inelectrocatalysts, supercapacitors and batteries. (2) Atomic epitaxial grownCo-Ni3N nanowires array with a nanoconfinement effect at the interface. Weattest by first-principle calculations that the nanoconfinement effectfacilitates electron transfer at the epitaxial interface, leading to asignificant enhancement in catalytic activities for both HER and OER.
简历
Dr. Fan is currently an associateprofessor at Nanyang Technological University (NTU). He received PhD fromNational University of Singapore in 2003, followed by postdoc atMax-Planck-Institute of Microstructure Physics, Germany and University ofCambridge. He joined NTU as Nanyang Assistant Professor in 2018. He is aneditorial board member of Nanotechnology, Materials Today Nano, advisory boardmember of Advanced Science, Advanced Materials Interface, and AdvancedMaterials Technologies, and Associate Editor of Materials Research Bulletin.Dr. Fan has chaired or co-chaired several international major conferencesincluding MRS in US and ICMAT in Singapore. Dr. Fan’s research interestsinclude semiconductor nanowires and related heterostructures, energy conversionand storage applications of nanomaterials (including photolysis andelectrolysis of water, batteries) and optical properties of low-dimensionalheterostructures. He has authored orco-authored 190 journal articles with an H-index of 63.
联系人：李彦光 教授
责任编辑：杨娟
