Operando XAS and NAP-XPS investigation of CO oxidation on meso- and nanoscale CoO catalysts

• Published in: Catalysis today Vol. 336; pp. 139 - 147
• Main Authors: Lukashuk, Liliana, Yigit, Nevzat, Li, Hao, Bernardi, Johannes, Föttinger, Karin, Rupprechter, Günther
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2019
• Subjects: CO oxidation; Co3O4; CoO; NAP-XPS; Operando; TEM; XAS; CoO; Operando; CO oxidation; NAP-XPS; XAS; TEM; Co3O4

[Display omitted] •Mesoscopic (˜1 μm) and nanosized (20–50 nm) CoO studied by operando XAS and NAP-XPS.•Pre-oxidation of mesoscopic CoO produced Co3O4 surface layers.•Vacuum-reduction of nanosized Co3O4 produced CoO surface layers.•During CO oxidation no bulk phase changes on mesoscopic CoO.•Nanosiz...