Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide The direct conversion of emitted and captured carbon dioxide into usable fuels remains a significant challenge and is a key element in the transition to net zero. Herein, we examine the reaction of CO 2 and H 2 O over Ni- and Cu-based catalysts combined with nonthermal plasma (NTP) technology. The catalysis under NTP conditions enabled significantly higher CO 2 conversion and product yield, which was almost six times higher than that of the plasma-only system. A maximum H 2 concentration of ∼2500 ppm was achieved for the Cu/ZSM5 catalyst at 17% CO 2 conversion. Comprehensive catalyst characterization together with the reaction performances reveals that Cu in a reduced state promotes both the CO 2 and H 2 O conversion leading to H 2 formation. In situ diffuse reflectance infrared spectroscopy (DRIFTS) coupled with mass spectrometry (MS) analysis of the gas phase products confirms that CO is the major active species to drive the water gas shift reaction to form H 2 in addition to the direct CO 2 and H 2 O interaction. It also explains how the different metal support interactions influence the CO adsorption and its interaction with water. Among the catalysts studied, ZSM5-supported Cu catalysts were found to be the most effective in facilitating the CO 2 and H 2 O reaction to produce H 2 .
Source: ACS Catalysis
Authors: Piu Chawdhury, Sarayute Chansai, Matthew Conway, Joseph Parker, Matthew Lindley, Cristina E. Stere, Meenakshisundaram Sankar, Sarah J. Haigh, Ben Dennis-Smither, Sorin V. Filip, Stephen Poulston, Peter Hinde, Christopher Hawkins, Christopher Hardacre
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G1015058392, G1278519414, Sustainable Catalysis for Clean Growth, G1626821369, G2158237762, G229551657, G2703599441, G3305536412, G3405814578, G3748897288, G4522418412, Sir Henry Royce Institute - Manchester and NNL Equipment, G4630886971, G504327055, G5424142534, Sir Henry Royce Institute - Manchester Build, G6148779978, The UK Catalysis Hub - 'Science': 1 - Optimising, predicting and designing new Catalysts, G6659993949, The Royce: Capitalising on the investment, G708391930, The UK Catalysis Hub - 'Science': 2 Catalysis at the Water-Energy Nexus, G7445816383, G7514479249, Hub 'Science' 3: Catalysis for the Circular Economy and Sustainable Manufacturing, G7679617292, Sir Henry Royce InsStitute - recurrent grant, G87373762, The UK Catalysis Hub -'Core'
OpenAlex ID: W4409484415