| Download | - View final version: Electrochemical promotion of bimetallic palladium‐cobalt nano‐catalysts for complete methane oxidation (PDF, 1.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1002/cctc.202301363 |
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| Author | Search for: Ahledel, NajmehORCID identifier: https://orcid.org/0000-0002-7255-4796; Search for: Saini, Komalpreet Kaur; Search for: Couillard, Martin1; Search for: Baranova, Elena A.ORCID identifier: https://orcid.org/0000-0001-5993-2740 |
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| Affiliation | - National Research Council Canada. Clean Energy Innovation
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| Format | Text, Article |
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| Subject | electrochemical promotion of the catalysis (EPOC); complete methane oxidation; yttria-stabilized zirconia (YSZ); palladium-cobalt nanoparticles; heterogeneous catalysis |
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| Abstract | The catalytic activity and electrochemical promotion of catalysis (EPOC) of the bimetallic Pd−Co nanoparticles (10 nm) deposited on yttria-stabilized zirconia were investigated for complete methane oxidation. The reaction was conducted under open-circuit and under polarization in a temperature range of 320–400 °C in reducing, stoichiometric, and oxidizing conditions. The catalytic activity of the catalyst nanoparticles increased to 40 % upon positive polarization in all gaseous compositions. A comparison of three reaction conditions revealed that the highest reaction rate increase (enhancement ratio, ρ=1.4) occurs under reducing conditions. The reaction rate increased upon anodic polarization, resulting in non-Faradaic electrochemical modification of catalytic activity (Λ≫1) in reducing and oxidizing conditions and Faradaic or electrochemical enhancement (Λ<1) in stoichiometric reaction condition. This work demonstrates that the formation of different Pd and Co oxide phases can be accurately controlled by electrochemical stimuli and, in reducing conditions, result in pseudo-capacitor behaviour. |
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| Publication date | 2024-01-08 |
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| Publisher | Wiley |
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| Licence | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 53aa8fbd-eaa5-4066-9bbf-e992e8986134 |
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| Record created | 2024-06-18 |
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| Record modified | 2024-06-18 |
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