A potential nickel-supported infiltrate mesoporous silica-aluminosilicate (Ni/SAS) catalyst was developed for improving hydrogen production through methane decomposition reaction. Infiltrate mesoporous silica-aluminosilicate supports with different Si/Al ratios (25, 50, and 100) were synthesized through a sol–gel method, then nickel metal was loaded on the support using an incipient impregnation method. All SAS(x) supports revealed a bimodal mesoporous structure with pore sizes at 2.7 and 3.9 nm. The aluminum favorably incorporated into the silica framework in the tetrahedral-coordinated position as [AlO4]5– to form an aluminosilicate framework in the structure of SAS(50). The active nickel area of Ni/SAS(x) catalysts was 1.30–2.27 times higher than that of the Ni/MCM-41 catalyst. Using the Ni/SAS(x) catalyst in the cracking reaction gave a higher H2 yield than using a Ni-supported silica catalyst. In particular, the H2 yield of the Ni/SAS(50) catalyst was 1.45, 1.11, and 1.29 times higher than that of the Ni/MCM-41 catalyst at 500, 550, and 600 °C, respectively. This performance could be attributed to a promotional effect of the infiltrate aluminosilicate framework as well as the moderate surface acidity, which enhanced the Ni dispersion and interaction between Ni and the SAS support, resulting in the multi-walled carbon nanotube formation via a tip-growth mechanism. Consequently, the active surface of the Ni/SAS(50) catalyst remained constant throughout the methane decomposition reaction.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.