Engineering Ni-Co bimetallic interfaces for ambient plasma-catalytic CO2 hydrogenation to methanol


Wang, Yaolin, Yang, Jiaqiang, Sun, Yuhai, Ye, Daiqi, Shan, Bin, Tsang, Shik Chi Edman and Tu, Xin ORCID: 0000-0002-6376-0897 (2024) Engineering Ni-Co bimetallic interfaces for ambient plasma-catalytic CO2 hydrogenation to methanol Chem, 10 (8). pp. 2590-2606. ISSN 2451-9294, 2451-9294

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Abstract

Plasma catalysis offers a flexible and decentralized solution for CO<inf>2</inf> hydrogenation to methanol under ambient conditions, avoiding the high temperatures and pressures required for thermal catalysis. However, the reaction mechanism, particularly plasma-assisted surface reactions, remains unclear, limiting the development of efficient catalysts for selective methanol synthesis. Here, we report a bimetallic Ni-Co catalyst effective in plasma-catalytic CO<inf>2</inf> hydrogenation to methanol at 35°C and 0.1 MPa, achieving 46% methanol selectivity and 24% CO<inf>2</inf> conversion. In situ plasma-coupled Fourier transform infrared characterization, along with density functional theory calculations, reveals that the engineered bimetallic sites act as primary active centers for methanol synthesis, promoting the rate-determining step in H-radical-induced reaction pathways by reducing steric hindrance effects. This work demonstrates the significant potential of bimetallic catalysts in plasma-catalytic CO<inf>2</inf> hydrogenation to methanol under ambient conditions, representing a major step toward sustainable CO<inf>2</inf> conversion and fuel production.

Item Type: Article
Uncontrolled Keywords: 34 Chemical Sciences, 3406 Physical Chemistry
Depositing User: Symplectic Admin
Date Deposited: 15 Jul 2024 13:38
Last Modified: 23 May 2026 08:58
DOI: 10.1016/j.chempr.2024.06.022
Open Access URL: https://doi.org/10.1016/j.chempr.2024.06.022
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3182863
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