Cheng, Mingxing, Bhalothia, Dinesh, Huang, Guo-Heng, Saravanan, Praveen K, Wu, Yawei, Beniwal, Amisha, Chen, Po-Chun, Tu, Xin 
ORCID: 0000-0002-6376-0897 and Chen, Tsan-Yao
(2024)
Sub-millisecond pulsed laser engineering of CuOx-decorated Pd nanoparticles for enhanced catalytic CO2 hydrogenation.
Catalysis Today, 441.
p. 114891.
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2024 Catal Today Cheng.pdf - Open Access published version Download (6MB) | Preview |
Abstract
Catalytic CO2 hydrogenation to fuels and chemicals presents a promising avenue for addressing global warming and advancing toward a net-zero economy. Surface atomic rearrangement of catalysts has attracted growing interest as a means to manipulate catalyst activity and selectivity. Herein, we designed a ternary nanocatalyst comprising CuOx species decorated Pd nanoparticles (NPs) supported on Co oxide (denoted as CPCu) for catalytic CO2 hydrogenation. Sub-millisecond laser treatment (1 mJ per pulse) was used to manipulate the surface atomic arrangements of CPCu the catalyst. The CPCu nanocatalyst showed a significant enhancement in both CH4 production and CO production at 300 °C compared to the Pd/Co catalyst. Notably, the CH4 production using the laser-treated nanocatalyst (denoted as CPCu-L) was 66.6 % higher than the untreated one (CPCu) at 300 °C. Comprehensive catalyst characterizations revealed that CuOx species promoted CO2 activation, while neighboring Pd domains effectively dissociated H2 molecules, leading to enhanced CH4 production. This study demonstrates the potential of sub-millisecond laser treatment for tailoring catalyst surfaces, offering a promising strategy to design more active and selective catalysts for CO2 hydrogenation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 34 Chemical Sciences, 3406 Physical Chemistry |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 02 Jul 2024 09:24 |
| Last Modified: | 02 Jul 2024 09:24 |
| DOI: | 10.1016/j.cattod.2024.114891 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3182575 |
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