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
Dehydrogenation of Ammonia Borane by Metal Nanoparticle Catalysts
TL;DR: In this paper, the authors summarize new progress in the development of metal nanoparticle (NP) catalysts, which are categorized into monometallic and heterometallic catalysts with excellent activity and high recyclability for different AB dehydrogenation pathways.
Journal ArticleDOI
High Pt-like activity of the Ni–Mo/graphene catalyst for hydrogen evolution from hydrolysis of ammonia borane
TL;DR: In this paper, Ni nanoparticles modified with a Mo dopant have been synthesized on graphene sheets via a facile chemical reduction route, which show the highest catalytic activity reported to date for noble-metal-free catalysts for hydrogen evolution from the hydrolysis of ammonia borane with a turnover frequency value as high as 66.7 mol H2 (mol metal min)−1.
Journal ArticleDOI
Nanopore-Supported Metal Nanocatalysts for Efficient Hydrogen Generation from Liquid-Phase Chemical Hydrogen Storage Materials
TL;DR: The latest research progress in catalytic hydrogen production is summarized, by using metal nanocatalysts confined within diverse nanoporous materials, such as metal-organic frameworks, porous carbons, zeolites, mesoporous silica, and porous organic polymers.
Journal ArticleDOI
Efficient and versatile CuNi alloy nanocatalysts for the highly selective hydrogenation of furfural
TL;DR: In this article, a series of highly dispersed and versatile bimetallic nanocatalysts derived from layer double hydroxides (LDHs) precursors were fabricated and used for the selective hydrogenation of furfural to tetrahydrofurfuryl alcohol (THFA) and FOL.
Journal ArticleDOI
Supported Rhodium Catalysts for Ammonia–Borane Hydrolysis: Dependence of the Catalytic Activity on the Highest Occupied State of the Single Rhodium Atoms
Liangbing Wang,Hongliang Li,Wenbo Zhang,Xiao Zhao,Jianxiang Qiu,Aowen Li,Xusheng Zheng,Zhenpeng Hu,Rui Si,Jie Zeng +9 more
TL;DR: A quantitative profile for exploring metal-support interactions by considering the highest occupied state in single-atom catalysts, which indicates that the catalytic performance depended directly on thehighest occupied state of the single Rh atoms, which was determined by the band structure of the substrates.
References
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Journal ArticleDOI
The ethanol steam reforming over Cu-Ni/SiO2 catalysts: Effect of Cu/Ni ratio
Li-Chung Chen,Shawn D. Lin +1 more
TL;DR: In this paper, the operating conditions of the steam reforming of ethanol reaction were evaluated by thermodynamics, in considering of the application requirements in hydrogen concentration and energy consumption, and 5% CuNi/SiO 2 catalysts with different Cu/Ni ratios were tested for SRE.
Journal ArticleDOI
Nanocatalysts for hydrogen generation from hydrazine
Sanjay Kumar Singh,Qiang Xu +1 more
TL;DR: In this article, the structure and activity of nanocatalysts focusing on the structure-activity relationship for selective hydrogen generation from hydrous hydrazine was discussed focusing on their properties and properties.
Journal ArticleDOI
Zeolite confined copper(0) nanoclusters as cost-effective and reusable catalyst in hydrogen generation from the hydrolysis of ammonia-borane
TL;DR: In this paper, a cost-effective nanocluster catalyst for the hydrolytic dehydrogenation of ammonia-borane was proposed, which is considered to be one among the new hydrogen storage materials.
Journal ArticleDOI
Amine-capped Co nanoparticles for highly efficient dehydrogenation of ammonia borane.
TL;DR: It is demonstrated that as a capping ligand, PEI deposited on GO provides a novel pathway able to simultaneously control the morphology, spatial distribution, surface active sites of cobalt (Co) NPs, and remarkably enhances their catalytic properties for the hydrolytic dehydrogenation of ammonia borane (AB).
Journal ArticleDOI
Aqueous solution synthesis of Pt-M (M = Fe, Co, Ni) bimetallic nanoparticles and their catalysis for the hydrolytic dehydrogenation of ammonia borane.
TL;DR: The catalytic activities of Pt-M NPs in the hydrolytic dehydrogenation of AB reveal that Pt-Ni NPs with a ratio of 4:1 show the best catalytic activity and even better than that of pure Pt NPs when normalized to Pt molar amount.
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