Journal ArticleDOI
Role of Metal–Support Interactions, Particle Size, and Metal–Metal Synergy in CuNi Nanocatalysts for H2 Generation
TLDR
In this article, the mesoporous carbon-supported Cu0.5Ni 0.5 nanocatalysts exhibit excellent catalytic performance for the hydrolysis of ammonia borane and decomposition of hydrous hydrazine with 100% hydrogen selectivity.Abstract:
Efficient bimetallic nanocatalysts based on non-noble metals are highly desired for the development of new energy storage materials. In this work, we report a simple method for the synthesis of highly dispersed CuNi catalysts supported on mesoporous carbon or silica nanospheres using low-cost metal nitrate precursors. The mesoporous carbon-supported Cu0.5Ni0.5 nanocatalysts exhibit excellent catalytic performance for the hydrolysis of ammonia borane and decomposition of hydrous hydrazine with 100% hydrogen selectivity in aqueous alkaline solution at 60 °C. The chemical composition and size of the metal particles, which have a significant influence on the catalytic properties of the supported bimetallic CuNi materials, can readily be controlled by adjusting the metal loading and ratio of metal precursors. An exceedingly high turnover frequency of 3288 (molH2 molmetal–1 h–1) and complete reaction within 1 min in dehydrogenation of ammonia-borane were achieved over a tailored-made catalyst obtained through p...read more
Citations
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Journal ArticleDOI
Confinement of Supported Metal Catalysts at High Loading in the Mesopore Network of Hierarchical Zeolites, with Access via the Microporous Windows
TL;DR: In this article, a large amount of metal or metal oxide on a hierarchically porous zeolite was supported by an embedded network of nanowires along the mesopores.
Journal ArticleDOI
The Hydrogen-Storage Challenge: Nanoparticles for Metal-Catalyzed Ammonia Borane Dehydrogenation.
Clève D. Mboyi,Didier Poinsot,Julien Roger,Katia Fajerwerg,Myrtil L. Kahn,Jean-Cyrille Hierso +5 more
TL;DR: In this article, a recent state-of-theart on H2 production capacities from the dehydrogenation reaction of ammonia borane (and selected related amine-boranes) as a safer solid source of H2 by hydrolysis (or solvolysis), catalyzed by nanoparticle-based systems.
Journal ArticleDOI
Selective Hydrogenation of Furfural to Tetrahydrofurfuryl Alcohol Using Supported Nickel–Cobalt Catalysts
TL;DR: In this article, bimetallic nickel-cobalt catalysts supported on SiC, γ-Al2O3, and SBA-15 with different compositions of nickel and cobalt were explored for the one-step hydrogenation of furfural (FA) compounds.
Journal ArticleDOI
Hierarchically alloyed Pd–Cu microarchitecture with tunable shapes: Morphological engineering, and catalysis for hydrogen evolution reaction of ammonia borane
TL;DR: In this paper, a facile and flexible fabricating protocol was introduced to purposefully modulate the orientated growth of Pd-Cu alloyed crystals via joint operation of adding suitable additives and adjusting temperature.
Journal ArticleDOI
Supported Mn catalysts and the role of different supports in the catalytic oxidation of carbon monoxide
TL;DR: In this article, the effects of the carrier and the content of the active species were studied in the carbon monoxide oxidation process and the relation between the textural properties of the catalysts and the catalytic performance was investigated.
References
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Journal ArticleDOI
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Solvent-Free Oxidation of Primary Alcohols to Aldehydes Using Au-Pd/TiO2 Catalysts
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TL;DR: It is shown that Au/Pd-TiO2 catalysts give very high turnover frequencies (up to 270,000 turnovers per hour) for the oxidation of alcohols, including primary alkyl alcohols and the addition of Au to Pd nanocrystals improved the overall selectivity.
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