Synthesis of NiMoO4 ceramics by proteic sol-gel method and investigation of their catalytic properties in hydrogen production.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilva, Maíra Vieira da-
Autor(es): dc.creatorFajardo, Humberto Vieira-
Autor(es): dc.creatorRodrigues, Thenner Silva-
Autor(es): dc.creatorSilva, Felipe A. e-
Autor(es): dc.creatorBergamaschi, Vanderlei Sérgio-
Autor(es): dc.creatorDias, Anderson-
Autor(es): dc.creatorSiqueira, Kisla Prislen Félix-
Data de aceite: dc.date.accessioned2025-08-21T15:42:17Z-
Data de disponibilização: dc.date.available2025-08-21T15:42:17Z-
Data de envio: dc.date.issued2021-12-13-
Data de envio: dc.date.issued2021-12-13-
Data de envio: dc.date.issued2020-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/14216-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/S0254058421000845?via%3Dihub-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.matchemphys.2021.124301-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1022043-
Descrição: dc.descriptionA proteic sol-gel route was used in the production of NiMoO4 catalysts, which used edible gelatin as a precursor. The triple helix structure of a protein in contact with identical structures acquires an unfolded form, which favors the interaction of the reactive groups of the gelatin (NH3 + and COO− ) with the metallic ions (MoO4 2− and Ni2+). The synthesized catalysts were thoroughly characterized using techniques such as X-ray diffraction, thermog ravimetric and differential thermal analysis, Raman scattering, scanning and transmission electron microscopies, UV–Vis spectroscopy, and colorimetry. The results showed that it is possible to prepare the phase-pure α-NiMoO4 polymorph only at temperatures above 700 ◦C, while a mixture of the polymorphs α and β were obtained at lower temperatures. The synthesized materials calcined at 300, 500, and 700 ◦C have their catalytic potentials tested in the ethanol steam reforming reaction aiming the production of hydrogen and presented a good performance. The results indicated that among tested materials, the sample calcined at 700 ◦C exhibited the highest stability, activity, and best selectivity relative to the product of interest.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectMolybdates-
Título: dc.titleSynthesis of NiMoO4 ceramics by proteic sol-gel method and investigation of their catalytic properties in hydrogen production.-
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