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Complete Photocatalytic Reduction of CO 2 to Methane by H 2 under Solar Light Irradiation

2014; American Chemical Society; Volume: 136; Issue: 19 Linguagem: Inglês

10.1021/ja500924t

1943-2984

Francesc Sastre, Alberto V. Puga, Lichen Liu, Avelino Corma, Hermenegildo Garcı́a,

Copper-based nanomaterials and applications

Nickel supported on silica-alumina is an efficient and reusable photocatalyst for the reduction of CO2 to methane by H2, reaching selectivity above 95% at CO2 conversion over 90%. Although NiO behaves similarly, it undergoes a gradual deactivation upon reuse. About 26% of the photocatalytic activity of Ni/silica-alumina under solar light derives from the visible light photoresponse.