Fe clusters embedded on N-doped graphene as a photothermal catalyst for selective CO2 hydrogenation

[EN] In comparison with the Co analog, small Fe clusters incorporated in a graphene matrix exhibit a photo-assisted increase of 110% in reverse water gas shift CO2 hydrogenation under UV-Vis light irradiation. Available data indicate that the photo-assistance derives from light absorption by the N-doped graphene followed by charge recombination at the Fe clusters, increasing their local temperature. L. P. prepared and characterized the catalysts. H. S. performed the photocatalytic reactions and mechanistic experiments. A. P. supervised the materials preparation and characterization. J. A. performed the TA measurements. This work was supervised by J. A. and H. G. who wrote the draft. The manuscript was revised by all the authors. Financial support by the Spanish Ministry of Science and Innovation (RTI201898237-CO2-1) and Generalitat Valenciana (Prometeo 2017-083) is gratefully acknowledged. This project has also received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 861151. Szalad, H.; Peng, L.; Primo Arnau, AM.; Albero-Sancho, J.; García Gómez, H. (2021). Fe clusters embedded on N-doped graphene as a photothermal catalyst for selective CO2 hydrogenation. Chemical Communications. 57(78):10075-10078. https://doi.org/10.1039/d1cc03524j