Processing of new efficient Cr1-xNaxO3 catalysts for sodium borohydride methanolysis

Alshammari, Khulaif; Alhassan, Sultan; Alshammari, Majed; Alshammari, Alhulw H.; Alotaibi, Turki; Mohaymen Taha, Taha Abdel; Henini, Mohamed

Abstract

This study reports the development of a novel Cr1-xNaxO3 catalyst using a simple cost-effective method for hydrogen production from NaBH4 methanolysis. The properties of the nanocomposites were investigated by employing XRD, FTIR, SEM and XPS characterization techniques. The XRD diffraction peaks confirmed the rhombohedral crystal structure of Cr1.xNaxO3 nanoparticles. The average crystal size of these nanoparticles was found to be ranging from 25.0 to 20 nm. FTIR analysis showed the characteristic absorption bands of Cr1.xNaxO3 nanoparticles. The SEM images of Cr2O3 and Cr1.7Na0.3O3 demonstrated that the nanoparticles are irregular in shape, while Cr1.4Na0.6O3 has a porous surface texture. XPS spectra of Cr2O3, Cr1.7Na0.3O3 and Cr1.4Na0.6O3 confirmed the presence of chromium, oxygen, and sodium in the samples. The optical band gaps of Cr2O3 Cr1.7Na0.3O3 and Cr1.4Na0.6O3 nanoparticles were approximately 3.28 eV, 1.61 and 0.81 eV, respectively. Cr1.4Na0.6O3 exhibited the most significant level of activity in terms of hydrogen production of 19144 mL/g.min.

Citation

Alshammari, K., Alhassan, S., Alshammari, M., Alshammari, A. H., Alotaibi, T., Mohaymen Taha, T. A., & Henini, M. (2024). Processing of new efficient Cr1-xNaxO3 catalysts for sodium borohydride methanolysis. International Journal of Hydrogen Energy, 53, 698-705. https://doi.org/10.1016/j.ijhydene.2023.12.078

• Journal Article Type: Article
• Acceptance Date: Dec 9, 2023
• Online Publication Date: Dec 19, 2023
• Publication Date: Jan 31, 2024
• Deposit Date: Dec 28, 2023
• Publicly Available Date: Dec 20, 2025
• Journal: International Journal of Hydrogen Energy
• Print ISSN: 0360-3199
• Electronic ISSN: 1879-3487
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 53
• Pages: 698-705
• DOI: https://doi.org/10.1016/j.ijhydene.2023.12.078
• Keywords: Energy Engineering and Power Technology, Condensed Matter Physics, Fuel Technology, Renewable Energy, Sustainability and the Environment
• Public URL: https://nottingham-repository.worktribe.com/output/28712332
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0360319923063784?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: Processing of new efficient Cr1-xNaxO3 catalysts for sodium borohydride methanolysis; Journal Title: International Journal of Hydrogen Energy; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ijhydene.2023.12.078; Content Type: article; Copyright: © 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.