Goto, Y., Daisley, A. and Hargreaves, J.S.J. (2021) Towards anti-perovskite nitrides as potential nitrogen storage materials for chemical looping ammonia production: reduction of Co₃ZnN, Ni₃ZnN, Co₃InN, Ni₃InN under hydrogen. Catalysis Today, 364, pp. 196-201. (doi: 10.1016/j.cattod.2020.03.022)
Text
212296.pdf - Published Version Available under License Creative Commons Attribution. 2MB |
Abstract
The ammonia production properties upon reduction in hydrogen of the anti-perovskite nitrides Co₃ZnN, Ni₃ZnN, Co₃InN, and Ni₃InN have been investigated. Single phases with ideal anti-perovskite structures (Space group: Pm-3m) were prepared for all the nitrides by the ammonolysis of the corresponding precursor oxides and all the nitrides were observed to produce ammonia in high yields when reacted with H2/Ar. The cumulative ammonia production values at 400 °C were 3069, 2925, 289, and 1029 μmol-NH3 g⁻¹ for Co₃ZnN, Ni₃ZnN, Co₃InN, and Ni₃InN, respectively and the order of the release rates was Ni₃ZnN > Co₃ZnN > Ni₃InN > Co₃InN. X-ray diffraction studies revealed that Co₃ZnN and Co₃InN were decomposed upon the loss of lattice N, whereas Ni₃ZnN and Ni₃InN were transformed into Ni₃Zn and Ni₃In via the intermediate phases Ni₃ZnNₓ and Ni₃InNᵧ. The crystal structures of these intermediate phases are related to their initial structures, indicating that the loss of lattice N in Ni₃ZnN and Ni3InN was topotactic.
Item Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Daisley, Miss Angela and Hargreaves, Professor Justin |
Authors: | Goto, Y., Daisley, A., and Hargreaves, J.S.J. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Catalysis Today |
Publisher: | Elsevier |
ISSN: | 0920-5861 |
ISSN (Online): | 1873-4308 |
Published Online: | 16 March 2020 |
Copyright Holders: | Copyright © 2020 The Authors |
First Published: | First published in Catalysis Today 364: 196-201 |
Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record