Year: 2025
Type: article
Abstract: Methanol is produced via syngas, and the catalysts used are based on Cu/Zn/Al. There is no catalyst yet to produce methanol from carbon dioxide with high performance. In this study, zirconia-supported copper/zinc-based catalysts with gallium and lanthanum promoters were synthesized via incipient wetness impregnation (IWI), sol–gel (SG), and deposition–precipitation (DP) with various configurations. The samples were characterized via BET, SEM, H2-TPR, and XRD and tested for methanol production. On the BET analysis, the samples synthesized via DP method yielded the highest surface area with 51.282 m2/g. H2-TPR analysis showed that samples were reduced ideally at 250°C. The incipient wetness impregnation method was found to have several disadvantages, while sol–gel and deposition–precipitation methods yielded uniformly dispersed oxide species on the support material, and the copper and zinc species’ particle sizes strongly affected the catalytic performance of the sample as the XRD results indicated. The DP method gave the highest performance in producing methanol, and the 33Cu25Zn3Ga/MZ–DP catalyst sample acquired with the ideal amount of gallium addition as promoter was found to be giving the highest yield of methanol among all the samples (0.329 g g catalyst −1 h−1) at 250°C, 4 MPa, and 6000 h−1.
Source: JOM
Authors: Ömer Egemen Bol, Gamze Behmenyar, Mesut Akgün
Institutions: Yıldız Technical University, TÜBİTAK Marmara Research Center
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,790
Award: G5149576019
OpenAlex ID: W4407251395