Effect of the Preparation Methods on the Physicochemical Properties of Indium-Based Catalysts and Their Catalytic Performance for CO2 Hydrogenation to Methanol
Artikel i vetenskaplig tidskrift, 2024

Indium oxides (In2O3) and indium oxides supported zirconia (ZrO2) have been known possible alternatives for conventional copper-based catalysts in the CO2-hydrogenation to methanol. This study aims to investigate the effect of preparation techniques on the physicochemical properties of indium-based materials and their catalytic performance for the hydrogenation of CO2 to methanol. Two series of both single oxide In2O3 and binary In2O3-ZrO2 have been synthesized by combustion, urea hydrolysis, and precipitation with different precipitating agents (sodium carbonate and ammonia/ethanol solution). Physicochemical properties of materials are characterized by elemental analysis, XRD, N2 physisorption, SEM/EDX, micro-Raman, XPS, H2-TPR, and CO2-TPD. Cubic In2O3 was the common phase generated by all four synthesis methods, except for urea hydrolysis, where rhombohedral In2O3 was additionally present. The combustion method produced the materials with the lowest specific surface areas while the precipitation using ammonia/ethanol aided in creating more oxygen defects. The synthesis methods strongly influenced the degree of interaction between the oxides and resulted in improvements in properties that boosted the catalytic performance of the binary oxides compared to their single-oxide counterparts.

Författare

Hoang Phuoc Ho

Chalmers, Kemi och kemiteknik, Kemiteknik

Giovanni Tizzanini

Universita di Bologna

Sreetama Ghosh

VIT University

Wei Di

Chalmers, Kemi och kemiteknik, Kemiteknik

Jieling Shao

Chalmers, Kemi och kemiteknik, Kemiteknik

Oleg Pajalic

Perstorp Holding AB

Lars Josefsson

Josefsson Sustainable Chemistry AB

Patricia Benito

Universita di Bologna

Derek Claude Creaser

Chalmers, Kemi och kemiteknik, Kemiteknik

Louise Olsson

Chalmers, Kemi och kemiteknik, Kemiteknik

Energy & Fuels

0887-0624 (ISSN) 1520-5029 (eISSN)

Vol. 38 6 5407-5420

Ämneskategorier

Materialkemi

Annan fysik

DOI

10.1021/acs.energyfuels.3c04721

Mer information

Senast uppdaterat

2024-04-04