桃子汉化组移植游戏大全:桃子汉化组移植游戏大全举行瑞典林雪平大学Reverant Crispin 学术报告会的通知
报告题目:Electrochemical hydrogenation of liquid organic hydrogen carriers (LOCHs)
报 告 人:Reverant Crispin教授(林雪平大学)
邀 请 人:马於光 院士
报告时间:2024年10月11日(周五)上午10:30-11:30
报告地点:北区发光材料与器件国家重点实验室502会议室
内容摘要:
Green hydrogen is identified as one of the prime clean energy carriers due to its high energy density and a zero emission of CO2. A possible solution for the transport of H2 in a safe and low-cost way is in the form of liquid organic hydrogen carriers (LOHCs)[1]. As an alternative to loading LOHC with H2 via a two-step procedure involving preliminary electrolytic production of H2 and subsequent chemical hydrogenation of the LOHC, we explore here the possibility of electrochemical hydrogenation of the LOHC via conversion of protons into a hydrogen atom involved in covalent bonds with the LOHC (R) via a proton coupled electron transfer reaction (PCET): 2nH+ + 2ne- + Rox →nH20Rred .
We chose 9-fluorenone/fluorenol (Fnone/Fnol) conversion as such a model PCET reaction [2]. The electrochemical activation of Fnone via two sequential electron transfers was monitored with in-situ and operando spectroscopies in absence and in presence of different alcohols as proton donors of different reactivity, which enabled us to both quantify and get the mechanistic insight on PCET. The possibility of hydrogen extraction from the loaded carrier molecule was illustrated by chemical activation.
References: [1] Energy Fuels, 38, 12447 (2024); [2] Journal of Energy Chemistry 73, 292 (2022).
个人简介:
Reverant Crispin obtained his PhD in 2000 with Prof. J.L. Brédas at University of Mons, Belgium, in quantum chemical modelling of the interaction of organic molecules on transition metal surfaces. In 2004, Reverant joined the Laboratory of Organic Electronics headed by Prof. M. Berggren and developed activities on organic electronic devices (organic diodes, transistors, memories). For his development on thermoelectric polymers, he was awarded the Tage Erlander Prize (2012) and the G?ran Gustafsson prize (2016) from the Royal Swedish Academy of Sciences. Since 2014, he is a Professor (Link?ping University, Sweden) and leads research activities on organic energy materials. He became vice-director of the national program Advanced Functional Materials at Link?ping University in 2019. He is cofounder and scientific advisor of 3 start-up companies: Ligna Energy AB (2017) developing organic batteries, ParsNord (2020) developing flexible thermoelectric coolers, and Cellfion AB (2021) producing ion-selective cellulose membranes for H2-electrolysers and redox flow batteries. He is also advisory board member for the following journals: “Advanced Energy and Sustainability Research” (2020) and Nano Research Energy (2021).