UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Catalytic decomposition of N2O over Cu–Al–Ox mixed metal oxides

Jabłońska, M; Arán, MA; Beale, AM; Góra-Marek, K; Delahay, G; Petitto, C; Pacultová, K; (2019) Catalytic decomposition of N2O over Cu–Al–Ox mixed metal oxides. RSC Advances , 9 (7) pp. 3979-3986. 10.1039/c8ra10509j. Green open access

[img]
Preview
Text
c8ra10509j.pdf - Published version

Download (1MB) | Preview

Abstract

Cu–Al–Ox mixed metal oxides with intended molar ratios of Cu/Al = 85/15, 78/22, 75/25, 60/30, were prepared by thermal decomposition of precursors at 600 °C and tested for the decomposition of nitrous oxide (deN2O). Techniques such as XRD, ICP-MS, N2 physisorption, O2-TPD, H2-TPR, in situ FT-IR and XAFS were used to characterize the obtained materials. Physico-chemical characterization revealed the formation of mixed metal oxides characterized by different specific surface area and thus, different surface oxygen default sites. The O2-TPD results gained for Cu–Al–Ox mixed metal oxides conform closely to the catalytic reaction data. In situ FT-IR studies allowed detecting the form of Cu+⋯N2 complexes due to the adsorption of nitrogen, i.e. the product in the reaction between N2O and copper lattice oxygen. On the other hand, mostly nitrate species and NO were detected but those species were attributed to the residue from catalyst synthesis.

Type: Article
Title: Catalytic decomposition of N2O over Cu–Al–Ox mixed metal oxides
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c8ra10509j
Publisher version: https://doi.org/10.1039/c8ra10509j
Language: English
Additional information: This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. https://creativecommons.org/licenses/by-nc/3.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10068356
Downloads since deposit
44Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item