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
More filters
Journal ArticleDOI
H2 production from lightweight inorganic hydrides catalyzed by 3d transition metals
TL;DR: A collective survey of the most recent research on hydrogen production from lightweight inorganic hydrides mediated by 3D metal-containing heterogeneous catalysts, within the broader context of chemical hydrogen storage is presented in this paper.
Journal ArticleDOI
Non-Noble Metal Nanoparticles Supported by Postmodified Porous Organic Semiconductors: Highly Efficient Catalysts for Visible-Light-Driven On-Demand H2 Evolution from Ammonia Borane
TL;DR: The structure characterizations indicated that the postmodified porous C3N4 species had the different band structures, photoluminescence lifetime, and photocurrent density under visible light irradiation, leading to the different separation efficiency of photogenerated charge carriers.
Journal ArticleDOI
N-doped mesoporous carbon embedded Co nanoparticles for highly efficient and stable H2 generation from hydrolysis of ammonia borane
TL;DR: In this paper, a facile and effective in-situ mosaic strategy for preparing non-noble metal and nitrogen co-doped mesoporous carbon catalysts, which feature homogeneously embedded, different sized metal nanoparticles as well as highly tunable nitrogen contents and types, was reported.
Journal ArticleDOI
PtxNi10−xO nanoparticles supported on N-doped graphene oxide with a synergetic effect for highly efficient hydrolysis of ammonia borane
Binhua Zhao,Kun Feng,Yun Wang,Xiaoxin Lv,Hechuang Zheng,Yanyun Ma,Wensheng Yan,Xuhui Sun,Jun Zhong +8 more
TL;DR: In this article, a Pt3Ni7O-NGO sample was used for the hydrolysis of ammonia borane (AB), which showed a high total turnover frequency (TOF) value of 709.6 mol H2 per mol Cat-Pt per min, better than that of pure Pt/C or Pt on NGO.
Journal ArticleDOI
Metal-organic framework derived carbon-supported bimetallic copper-nickel alloy electrocatalysts for highly selective nitrate reduction to ammonia.
TL;DR: In this article , a series of CuNi alloy nanoparticles embedded in nitrogen-doped carbon matrix (CuNi/NC) with hierarchical pores were fabricated by pyrolysis of bimetallic metal-organic frameworks (MOFs).
References
More filters
Journal ArticleDOI
Hydrogen-storage materials for mobile applications
TL;DR: Recent developments in the search for innovative materials with high hydrogen-storage capacity are presented.
Reference BookDOI
Handbook of Heterogeneous Catalysis
TL;DR: This paper presents a meta-modelling system that automates the very labor-intensive and therefore time-heavy and therefore expensive and expensive process of characterization and activation of Solid Catalysts.
Journal ArticleDOI
Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles
TL;DR: Nanoalloys of Group 11 (Cu, Ag, Au) 865 5.1.5.2.
Journal ArticleDOI
Towards the computational design of solid catalysts
TL;DR: The first steps towards using computational methods to design new catalysts are reviewed and how, in the future, such methods may be used to engineer the electronic structure of the active surface by changing its composition and structure are discussed.
Journal ArticleDOI
Solvent-Free Oxidation of Primary Alcohols to Aldehydes Using Au-Pd/TiO2 Catalysts
Dan I. Enache,Jennifer K. Edwards,Philip Landon,Benjamin Solsona-Espriu,Albert Frederick Carley,Andrew A. Herzing,Masashi Watanabe,Christopher J. Kiely,David W. Knight,Graham J. Hutchings +9 more
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.
Related Papers (5)
Dehydrogenation of Ammonia Borane by Metal Nanoparticle Catalysts
Hydrogen-storage materials for mobile applications
Catalytic activities of non-noble metals for hydrogen generation from aqueous ammonia-borane at room temperature
Qiang Xu,Manish Chandra +1 more