報告時間：2023年10月21日（星期六）9:30
報告地點：學術會議中心二樓報告廳
報 告 人：Ib Chorkendorff 教授
工作單位：丹麥技術大學
舉辦單位：化學與化工學院、先進催化與反應工程安徽省重點實驗室、可控化學與材料化工安徽省重點實驗室、先進功能材料與器件安徽省重點實驗室
報告簡介：
In the future we will have to extensively rely on sustainable energy that comes in the form of electricity, and we therefore must rethink our entire chemical production which today is based on fossil resources. One of the most challenging processes is the activation of molecular nitrogen, which is essential for life, as it constitutes a part of all amino acids and nucleic acid. Sustainable energy is produced de-centrally and ammonia is used de-centrally as fertilizer, therefore imagine if we could do like Nature and synthesize ammonia at ambient conditions. We have recently demonstrated that an electrochemical lithium mediated process can indeed activate Nitrogen and synthesize ammonia at ambient conditions. We have subsequently followed up on this new insight and based on models improved the Faradaic efficiency by oscillating the potential, optimizing the Oxygen content in the Nitrogen gas, and by synthesizing high area electrodes. Very recently we have designed a fuel cell type cell which is scalable, and which can operate continuously using hydrogen as the proton source with both Li or Ca. This is the first step towards making this a viable de-centralized process, although outstanding questions concerning the energy efficiency will be discussed.
報告人簡介：
Ib Chorkendorff，丹麥技術大學物理系教授，丹麥皇家科學院院士。于1985年在丹麥奧登塞大學獲得博士學位，隨后在美國匹茲堡大學從事博士后研究。 1987年入職丹麥技術大學，并于1999年晉升為正教授。2005-2016年，擔任丹麥國家研究基金會“個體納米粒子功能中心（CINF）”主任。2016-至今，擔任“可持續燃料和化學科學Villum中心（V-SUSTAIN）”主任。迄今共發表400余篇學術論文、23項專利和一本《現代催化和動力學概論》著作。自2017年以來，被列為高被引科學家（ISI）（領域內前1%）。Chorkendorff教授的研究工作是利用表面科學方法研究異質催化過程，包括熱催化、電催化和光催化。研究方向聚焦于尋找新型催化劑，以提高可持續能源生產/轉化效率并促進環境保護。此外，他是三家初創公司RENCAT APS、HPNOW APS和Spectroinlets APS的聯合創始人。Chorkendorff教授獲得過眾多獎項，包括最近的2021年的維勒姆·坎·拉斯穆森年度獎（丹麥最負盛名的獎項）以及2022年的Eni獎（能源前沿獎）。
