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A symmetric direct ammonia fuel cell using ternary NiCuFe alloy embedded in a carbon network as electrodes
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Zhang, Mengfei, Zhang, Jie, Jeerh, Georgina, Zou, Peimiao, Sun, Boyao, Walker, Marc, Xie, Kui and Tao, Shanwen (2022) A symmetric direct ammonia fuel cell using ternary NiCuFe alloy embedded in a carbon network as electrodes. Journal of Materials Chemistry A, 10 (36). pp. 18701-18713. doi:10.1039/D2TA04129D ISSN 2050-7488.
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WRAP-A-symmetric-direct-ammonia-fuel-cell-using-ternary-NiCuFe-alloy-embedded-in-a-carbon-network-as-electrodes-Tao-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1816Kb) | Preview |
Official URL: http://dx.doi.org/10.1039/D2TA04129D
Abstract
Recently, due to the high energy density of ammonia, low source-to-tank energy cost and carbon free fuel, low-temperature direct ammonia fuel cells (DAFCs) have attracted extensive attention and play an important role in ammonia economy. In DAFCs, Pt-based materials have been the most studied electrocatalysts for the anodic ammonia oxidation reaction (AOR) and cathodic oxygen reduction reaction (ORR) over the past decade. However, the high cost of precious metal has markedly inhibited the large-scale application of DAFCs. Herein, a bifunctional material of ternary Ni4Cu5Fex (x = 0, 0.5, 1, 3, 5) alloy embedded in a carbon network was prepared by a simple solvothermal approach, and showed superior activity and durability towards both AOR and ORR. The excellent bifunctional catalytic activity of the Ni4Cu5Fe1/C sample was analyzed by experimental and calculational methods. Utilizing the bifunctional activities of this alloy, a symmetric DAFC was assembled with Ni4Cu5Fe1/C as both the anode and cathode, with a commercial anion exchange membrane (AEM) as electrolyte. The symmetric DAFC-Ni4Cu5Fe1/C showed a maximum current density of 67 mA cm−2 at 80 °C. To the best of our knowledge, this is the first report on a symmetric DAFC. This work not only reports a new AOR/ORR bifunctional catalyst, but also moves towards the development of low-cost DAFCs with simple structure.
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Fuel cells, Ammonia, Electrodes | ||||||||||||
| Journal or Publication Title: | Journal of Materials Chemistry A | ||||||||||||
| Publisher: | R S C Publications | ||||||||||||
| ISSN: | 2050-7488 | ||||||||||||
| Official Date: | 28 September 2022 | ||||||||||||
| Dates: |
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| Volume: | 10 | ||||||||||||
| Number: | 36 | ||||||||||||
| Page Range: | pp. 18701-18713 | ||||||||||||
| DOI: | 10.1039/D2TA04129D | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
| Date of first compliant deposit: | 18 October 2022 | ||||||||||||
| Date of first compliant Open Access: | 19 October 2022 | ||||||||||||
| RIOXX Funder/Project Grant: |
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