arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.14405cond-mat.mtrl-sci
收藏

过渡金属掺杂铝团簇与Carbon Dioxide的光诱导电荷转移

Light Induced Charge Transfer from Transition-metal Doped Aluminium Clusters to Carbon Dioxide

Alexandra Göbel, Angel Rubio, Johannes Lischner

摘要:

分子与催化剂之间的电荷转移在决定光化学催化过程的效率和产率方面起着关键作用。本文采用第一性原理含时密度泛函理论研究了过渡金属掺杂铝团簇与CO $_2$分子之间的光诱导电子转移。具体来说,我们进行了一系列的掺杂剂(锆,锰,铁,钌,钴,镍和铜)的计算,并发现所得到的系统分为两类:铜和铁掺杂的集群表现出没有基态电荷转移,弱CO $_2$吸附和光诱导电子转移到CO $_2$。在所有其他系统中,我们观察到基态电子转移到CO $_2$导致强吸附和主要是光诱导的电子从CO $_2$回转移到集群。这些发现为合理设计原子级精确的铝光催化剂铺平了道路。

英文摘要:

Charge transfer between molecules and catalysts plays a critical role in determining the efficiency and yield of photo-chemical catalytic processes. In this paper, we study light-induced electron transfer between transition metal doped aluminium clusters and CO$_2$ molecules using first-principles time-dependent density-functional theory. Specifically, we carry out calculations for a range of dopants (Zr, Mn, Fe, Ru, Co, Ni and Cu) and find that the resulting systems fall into two categories: Cu- and Fe-doped clusters exhibit no ground state charge transfer, weak CO$_2$ adsorption and light-induced electron transfer into the CO$_2$. In all other systems, we observe ground state electron transfer into the CO$_2$ resulting in strong adsorption and predominantly light-induced electron back-transfer from the CO$_2$ into the cluster. These findings pave the way towards a rational design of atomically precise aluminium photo-catalysts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑