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Palladium Supported on Porous Chitosan-Graphene Oxide Aerogels as Highly Efficient Catalysts for Hydrogen Generation from Formate. | LitMetric

Palladium Supported on Porous Chitosan-Graphene Oxide Aerogels as Highly Efficient Catalysts for Hydrogen Generation from Formate.

Molecules

Instituto de Tecnología Química, Consejo Superior de Investigaciones Científicas, Universitat Politècnica de València, Av. De los Naranjos s/n, 46022 Valencia, Spain.

Published: September 2019

AI Article Synopsis

Article Abstract

Adsorption of Pd(NH) in preformed chitosan-graphene oxide (CS-GO) beads and their subsequent reduction with NaBH afford well-dispersed, high dispersion (~21%) of uniformly sized Pd nanoparticles (~1.7 nm). The resulting Pd/CS-GO exhibits interesting catalytic activity for hydrogen generation by ammonium formate decomposition. The optimal GO proportion of 7 wt% allows reaching, at 60 °C, a turnover frequency above 2200 h-being outstanding among the highest values reported for this process to date. Interestingly, no formation of CO or CH was detected. The catalyst did not leach, although it underwent gradual deactivation, probably caused by the increase in the Pd average size that became over 3 nm after three uses. Our results are relevant in the context of efficient on-board hydrogen generation from liquid organic hydrogen carriers in transportation.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6767305PMC
http://dx.doi.org/10.3390/molecules24183290DOI Listing

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