The formation of unsaturated IrOx in SrIrO3 by cobalt-doping for …
2024年4月4日 · Herein, we develop a Co-doped SrIrO 3 system to enhance oxygen evolution reaction activity and elucidate the origin of catalytic activity. In situ experiments reveal Co …
Reversible metal-insulator transition in SrIrO3 ultrathin layers by ...
2023年5月24日 · SrIrO 3 is a correlated semimetal with narrow t 2g d-bands of strong mixed orbital character resulting from the interplay of the spin-orbit interaction due to heavy iridium …
Amorphization mechanism of SrIrO3 electrocatalyst: How oxygen …
2021年1月8日 · Here, we investigate the interfacial transformation of the SrIrO 3 OER electrocatalyst. The SrIrO 3 amorphization is initiated by the lattice oxygen redox, a step that …
Electronic tuning of SrIrO3 perovskite nanosheets by sulfur ...
2021年12月5日 · Electronic tuning of M-SrIrO 3 by S incorporation enables high OER activity. Surface reconstruction of S-doped M-SrIrO 3 is confirmed during OER process. IrO 2 and RuO …
Facile synthesis of SrIrO3 by mechanical activation assisted solid ...
2019年11月1日 · XRD and TEM results confirmed the formation of SrIrO 3 without other impurities, and XPS results revealed that some of the Ir species, including Ir 4+, existed in +3 …
SrIrO3 modified with laminar Sr2IrO4 as a robust bifunctional ...
2021年9月1日 · Sr-containing perovskites are very sensitive to surface structural reconstruction in acidic media. To better understand the structural evolution during the OER, ex situ X-ray …
A highly active and stable IrOx/SrIrO3 catalyst for the oxygen ...
2016年9月2日 · The surface composition and chemical state of the IrO x /SrIrO 3 catalysts were assessed by x-ray photoelectron spectroscopy (XPS). Sample Ir4f and Sr3d peaks are shown …
Mechanism from catalyst to catalysis on Ir segregated SrIrO3 for ...
X-ray absorption spectrum (XAS) and XPS were conducted to investigate the evolution of the chemical state and coordination environment of Ir and Sr. The Ir 4 f spectra of SrIrO 3 showed …
Partial Exsolution Enables Superior Bifunctionality of Ir@SrIrO3 for ...
2024年4月2日 · An Ir@SrIrO3 heterojunction with strong metal-support interaction is prepared by a top-down partial exsolution strategy for acidic overall water splitting. Thanks to interfacial …
Tunable charge transport properties in non-stoichiometric SrIrO3 …
The tunability of the electronic band structure of SrIrO3 films with varying oxygen vacancy is correlated with the DFT calculations. Our findings elucidate the intricate mechanisms dictating …