3/22(一)專題演講公告

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演講人郭俊宏博士

服務單位中研院化學所

演講題目 Bridging Energy and Chemistry via Nanoarchitectonics Engineering 

演講時間110年3月22日(星期一)早上10點20分

演講地點工綜館203國際演講廳

個人學歷

畢業學校

國別

主修學門系所

學位

國立清華大學

臺灣

化學

博士

國立清華大學

臺灣

化學

碩士

國立成功大學

臺灣

化學

學士

 

個人經歷

服務機關

服務部門

職稱

現職:

   

中央研究院

化學研究所

副研究員

經歷:

   

中央研究院

化學研究所

助研究員

美國加州大學柏克萊分校

化學系

博士後

美國波士頓學院

化學系

博士後

國立清華大學

化學系

博士後

 

演講摘要Nanoarchitectonics engineering on nanocrystals aims to optimize their functions and render them superior catalysts for energy-conversion reactions. In the cases of heterogenous catalysts, recent strategies have been focused on manipulating their surface states by altering the compositions, defects, and strain, which exhibit required electronic and lattice-strain effects beneficial for catalytic reactions. In this presentation, the concept of nanoarchitectonics in nano-creation of bimetallic nanocrystals for superior catalytic properties will be introduced by taking examples of Pd-based and Cu-based nanocrystals with alloyed or core-shell structures. In the first part, Au-Pd icosahedral nanocrystals will be specifically discussed as the unique strain structure plays a key to the enhanced catalytic performance in both electrocatalytic and photocatalytic redox reactions. Moreover, insights into their electronic structures and charge transfer by X-ray absorption spectroscopy (XAS) will be explained. In the other part, a series of stories about Cu-templated nanocatalysts with bimetallic Cu-M surfaces will be presented, where the syntheses, the characterizations with synchrotron-radiation technologies, and the applications in electrochemical redox reactions will be explicitly illustrated.