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Crystallization of NiCo MOF-74 on a porous NiO film as an anode for the urea/H2O2 fuel cell
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Putri, Yulia M. T. A., Chamberlain, Thomas W., Degirmenci, Volkan, Gunlazuardi, Jarnuzi, Krisnandi, Yuni K., Walton, Richard I. and Ivandini, Tribidasari A. (2023) Crystallization of NiCo MOF-74 on a porous NiO film as an anode for the urea/H2O2 fuel cell. ACS Applied Energy Materials, 6 (4). pp. 2497-2507. doi:10.1021/acsaem.2c03938 ISSN 2574-0962.
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WRAP-Crystallization-NiCo-MOF-74-porous-NiO-film-anode-urea-fuel-cell-23.pdf - Accepted Version - Requires a PDF viewer. Download (2408Kb) | Preview |
Official URL: https://doi.org/10.1021/acsaem.2c03938
Abstract
NiCo-MOF-74 crystallized directly on the surface of porous NiO (p-NiO) film using a solvothermal method is proposed as an effective electrocatalyst for the anode in direct urea fuel cells. A nickel-to-cobalt ratio of 4:1 was found to show optimum catalytic activity toward urea oxidation with significant current enhancement in comparison to other electrodes, including Ni foil and p-NiO. At optimized conditions in an electrolyte solution of 3.0 M KOH and 1.0 M urea, a current density of around 110 mA cm–2 with a maximum power density of 4131 μW cm–2 can be produced. This is ascribed to the increase of the active surface area over conventional nickel-based anodes, providing an abundance of active sites for urea oxidation. Excellent stability and reproducibility over 15 h application in a direct urea fuel cell was obtained with cell voltage of ∼0.6 V. Powder X-ray diffraction shows the crystalline MOF film remains intact after chronoamperometry tests, and after fuel cell application, illustrating applicability in real devices.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TN Mining engineering. Metallurgy T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Engineering > Engineering |
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SWORD Depositor: | Library Publications Router | |||||||||
Library of Congress Subject Headings (LCSH): | Fuel cells -- Electrodes, Cobalt-nickel alloys, Nickel oxide, Anodes, Urea -- Oxidation, Metal-organic frameworks | |||||||||
Journal or Publication Title: | ACS Applied Energy Materials | |||||||||
Publisher: | American Chemical Society (ACS) | |||||||||
ISSN: | 2574-0962 | |||||||||
Official Date: | 27 February 2023 | |||||||||
Dates: |
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Volume: | 6 | |||||||||
Number: | 4 | |||||||||
Page Range: | pp. 2497-2507 | |||||||||
DOI: | 10.1021/acsaem.2c03938 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Re-use Statement: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see ACS Articles on Request ].” | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Copyright Holders: | Copyright © 2023 American Chemical Society | |||||||||
Date of first compliant deposit: | 17 March 2023 | |||||||||
Date of first compliant Open Access: | 9 February 2024 | |||||||||
RIOXX Funder/Project Grant: |
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