Nanoparticle Exsolution: Understanding the Role of Oxygen Vacancies in the Exsolution Mechanism of Perovskite Oxides.

该项目将研究来自钛酸锶（SrTiO 3）和钛酸锶镧（Sr 1-xLaxTiO 3-d）钙钛矿的铱纳米颗粒的出溶，主要目的是生产具有均匀分布的催化活性纳米颗粒的催化剂，用于能源应用，特别是实现净零排放。这项研究还旨在阐明纳米颗粒出溶的机制，特别是氧空位的作用，以推进纳米颗粒从钙钛矿母体氧化物出溶的知识状态，并推动我们更接近钙钛矿基纳米颗粒催化剂的开发和广泛应用，这些催化剂在操作条件下保持其活性，显着提高其更换前的寿命。

This project will investigate the exsolution of iridium nanoparticles from strontium titanate (SrTiO3) and strontium lanthanum titanate (Sr1-xLaxTiO3-d) perovskites, with the primary aim of producing catalysts with uniformly distributed, catalytically active nanoparticles for energy applications, particularly towards achieving net-zero emissions. This study will also aim to elucidate the mechanism of nanoparticle exsolution, in particular, the role of oxygen vacancies, to advance the state of knowledge of nanoparticle exsolution from perovskite parent oxides and drive us closer towards the development and widespread application of perovskite-based nanoparticle catalysts that retain their activity under operating conditions, significantly improving their lifetime before replacement.