Methanol steam reforming for hydrogen production over NiTiO3 nanocatalyst with hierarchical porous structure

Steam reforming for hydrogen production is one of the important research directions for clean energy. NiTiO3 catalysts with a hierarchical porous structure are prepared and applied to methanol steam reforming for hydrogen production. The results show that the optimum catalyst (10% Ni–Ti–Ox) not only...

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Bibliographic Details
Published in:RSC advances 2023-05, Vol.13 (24), p.16342-16351
Main Authors: Jin, Qijie, Meng, Xuelu, Wu, Peng, Li, Yunhe, Xu, Mutao, Zhou, Ranran, Yang, Mengfei, Xu, Haitao
Format: Article
Language:English
Subjects:
Anatase
Catalysts
Chemistry
Clean energy
Coordination compounds
Decomposition reactions
Formic acid
High temperature
Hydrogen production
Hydroxyl groups
Low temperature
Methanol
Nickel compounds
Reforming
Titanates
Titanium dioxide
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Summary:Steam reforming for hydrogen production is one of the important research directions for clean energy. NiTiO3 catalysts with a hierarchical porous structure are prepared and applied to methanol steam reforming for hydrogen production. The results show that the optimum catalyst (10% Ni–Ti–Ox) not only has a hierarchical porous structure, but it also involves the coexistence of NiTiO3, anatase TiO2 and rutile TiO2. The formation of NiTiO3 is beneficial to the adsorption and activation of methanol molecules on the surface of the Ni–Ti–Ox catalyst, and the main intermediate species of the methanol molecular reaction are hydroxyl groups, methoxy species and formic acid species. Furthermore, the methanol steam reforming reaction is mainly dominated by methanol decomposition at low temperature (350–500 °C), while it is mainly dominated by methanol and water molecular reactions at high temperature (500–600 °C).
ISSN:2046-2069
2046-2069
DOI:10.1039/d3ra02891g