報(bào)告題目:Understanding Electrocatalytic CO2 and CO Reduction on Cu at the Molecular Level
報(bào)告人:徐冰君 教授
報(bào)告時(shí)間:2021年10月18日上午9:30
報(bào)告地點(diǎn):先進(jìn)制造大樓西樓A308室
報(bào)告摘要:
Electrocatalysis powered by renewable energy is expected to play a pivotal role in the global decarbonization process. In particular, electrocatalytic CO2 and CO reduction reactions (CO(2)RR) are widely considered as indispensable components in the valorization of CO2. Much recent research effort has been devoted to the development of efficient and selective catalysts for valuable C2+ products on Cu surfaces, however, many open questions regarding how species in the electrochemical interfaces impact the activity and selectivity remain. In this lecture, recent efforts in understanding the impact of the surface speciation, adsorbed reaction intermediates and near surface species, including anions and cations, on the CO(2)RR at the molecular level. Mechanistic investigations on the electroreductive C-C coupling reactions leading to C3+ products will also be covered briefly. In-situ/operando surface enhanced vibrational spectroscopies, i.e., surface enhanced infrared and Raman spectroscopies, prove to be enabling tools in the identification of active sites and elucidation of reaction mechanisms. The interconnected nature of species at the electrochemical interface makes the assignment of their individual roles in electrocatalytic processes challenging, but also offers ample opportunities for future interfacial engineering in renewable energy devices.
報(bào)告人簡介:
徐冰君,現(xiàn)任北京大學(xué)化學(xué)與分子工程學(xué)院李革趙寧講席教授。哈佛大學(xué)物理化學(xué)博士(2011),加州理工學(xué)院化工系博后(2011-2013),曾任美國特拉華大學(xué)化學(xué)與分子生物工程系助理教授(2013)與centennial development講席副教授(2019),于2020年加入北京大學(xué)。曾獲ACS石油研究基金新人獎(jiǎng)(2015);美國空軍科研辦公室新人獎(jiǎng)(2016);美國自然科學(xué)基金新人獎(jiǎng)(2017);I&EC有影響力學(xué)者(2018);教育部長江特聘教授(2020)。
現(xiàn)擔(dān)任Science Advances與物理化學(xué)學(xué)報(bào)副主編,Scientific Reports編委。徐冰君課題組致力于多相熱、電催化界面機(jī)理研究,發(fā)展界面敏感的原位表征技術(shù),開發(fā)高效、高選擇性的催化材料與過程。在生物質(zhì)轉(zhuǎn)化,碳?xì)浠衔锷?jí),二氧化碳捕集與升級(jí)等方向在Nature Energy,JACS,Angew. Chem.,Nat. Commun., ACS Catal.等雜志發(fā)表了100余篇科學(xué)論文。