Fermi level engineering in oxygen transport membranes (A03)

项目A03通过使用可持续的微波加热软化学工艺合成3d过渡金属掺杂的brownmillerite型Ba2In2O5，以揭示费米能在这些混合离子电子导体中的作用。重点是晶体结构，微观结构，电子结构，以及由此产生的氧渗透通量之间的相互关系。这允许材料用作气体可渗透的氧传输膜，例如用于从CO2等离子体中提取氧自由基。与其他项目合作，对这些材料通过掺杂（研究区域A）和表面气体吸附物（研究区域B）的费米能级重新定位进行了实验和理论研究。

Project A03 synthesizes 3d transition metal doped brownmillerite-type Ba2In2O5 by using sustainable microwave heated soft chemistry processes to unravel the role of the Fermi energy in these mixed ionic electronic conductors. The focus is on the interrelations between crystal structure, microstructure, electronic structure, and the resulting oxygen permeation flux. This allows material usage as gas permeable oxygen transport membranes, e.g. for extraction of oxygen radicals from a CO2 plasma. The Fermi level relocation of these materials by doping (research area A) and surface gas adsorbates (research area B) is studied experimentally and theoretically in collaboration with other projects.