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A 60-second microwave-assisted synthesis of nickel foam and its application to the impregnation of porous scaffolds

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Irvine_2015_JES_60Second_CC.pdf (1.399Mb)
Date
2015
Author
Ruiz-Trejo, Enrique
Azad, Abul Kalam
Irvine, John Thomas Sirr
Keywords
QD Chemistry
NDAS
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Abstract
A rapid and facile method to prepare nickel foam from nickel nitrate and glycine using a conventional microwave oven is presented. The foam, characterized by SEM, XRD-Rietveld, TG, magnetization measurements and BET contains mostly nickel metal (80 w%) and nickel oxide (20 w%); it exhibits pores in the sub micrometric and nanometric scale and consists of particles with an average diameter of 45-47 nm and BET surface of 15.9 gm-2. This microwave-assisted combustion synthesis is used to infiltrate porous ceramic scaffolds with nickel metal as a potential method to accelerate the fabrication of electrodes in solid oxide fuel cells and electrolysers. After repeated impregnation, the scaffolds of Ce0.9Gd0.1O2, saffil (high temperature insulating brick), La0.2Sr0.7TiO3 and BaCe0.5Zr0.3Y0.16Zn0.04O3-δ were black, exhibited electrical continuity and were easily lifted with a magnet. A comparative SEM study of the microstructure of the porous scaffolds with and without nickel is presented.
Citation
Ruiz-Trejo , E , Azad , A K & Irvine , J T S 2015 , ' A 60-second microwave-assisted synthesis of nickel foam and its application to the impregnation of porous scaffolds ' , Journal of The Electrochemical Society , vol. 162 , no. 3 . https://doi.org/10.1149/2.0531503jes
Publication
Journal of The Electrochemical Society
Status
Peer reviewed
DOI
https://doi.org/10.1149/2.0531503jes
ISSN
0013-4651
Type
Journal article
Rights
© The Author(s) 2014. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited.
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We thank Sasol for financial support.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/6027

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