Photocatalytic oxidation of methane coupling with hydrogen evolution from water over Au decorated Ga2O3 catalysts
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2022
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CINE CONFERENCE, 3.
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Resumo
Methane is a major constituent of natural gases and is an important source of carbon and
hydrogen for the chemical industry. However, CH4 is one of the most stable molecule and
high reaction temperatures are required to transform CH4 into more valuable chemicals [1].
In this work, we investigated the use of β-Ga2O3 loaded with Au nanoparticles (0.1–1.0%) as
photocatalysts that were prepared 3 different methods: pre-formed NNTS; in-situ; and H2
reduction. The materials were characterized by XRD, UV-Vis, TEM, and Raman. The
reactions were performed on a photocatalytic reactor with Hg lamp (450W, UV/A/B/C). CH4
gas was bubbled into H2O, Au/Ga2O3 in suspension and the products were identified by GC-MS
and quantified by GC-FID/TCD using calibration curves. C2H6, CO2, H2 with minor
quantities of C2H4, C3H8, C4H10, and CO were produced. The best performance was
observed for the photocatalyst prepared with 0.03% of Au that produced 112 mol.gcat-1h-1
of C2H6 and 16.500 mol.gcat-1h-1 of H2.
Como referenciar
JANUARIO, ELIANE R.; VAZ, JORGE M.; SPINACE, ESTEVAM V. Photocatalytic oxidation of methane coupling with hydrogen evolution from water over Au decorated Ga2O3 catalysts. In: CINE CONFERENCE, 3., 18-19 de outubro, 2022, Campinas, SP. Resumo... Disponível em: http://repositorio.ipen.br/handle/123456789/33936. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.