Studies of hydrogen adsorption on ni-modified mcm-41 mesoporous materials.
Fecha
2016Autor
Carraro, Paola
García Blanco, Andrés
Soria, Federico
Lener, Germán
Sapag, Karim
Oliva, Marcos Iván
Eimer, Griselda Alejandra
Metadatos
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MCM-41 mesoporous materials were prepared modified with different Ni
contents, as promising materials for hydrogen storage. The final materials were reduced for
studying the metallic nickel effect. The Ni/MCM-41 samples were characterized for different
experimental techniques such as TPR, XRD and N2 adsorption-desorption. The hydrogen
storage capacity of the materials was evaluated at 77 K and room temperature, and at low and
high-pressure conditions respectively. In this study, we focused on the role of dispersed nickel
as a way of promoting the interaction with hydrogen as an alternative to improve hydrogen
storage materials. The results obtained show that the amount of hydrogen stored was highly
enhanced by the dispersion of small amounts of Ni nanoparticles both at 77 and 298 K,
indicating that these materials could be used for hydrogen storage in cryogenic and room
temperature conditions.
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