Co–Co2B, Ni–Ni3B and Co–Ni–B nanocomposites catalyzed ammonia–borane methanolysis for hydrogen generation

文献信息

发布日期 2008-11-28
DOI 10.1039/B814216E
影响因子 3.676
作者

Suresh Babu Kalidindi, Amit Ashok Vernekar, Balaji R. Jagirdar


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摘要

Co–Co2B and Ni–Ni3B nanocomposites were synthesized by the reduction of Co2+ and Ni2+ ions using ammonia–borane in methanol. The Co–Ni–B nanocomposite was synthesized by the co-reduction of Co2+ and Ni2+ ions. The catalytic activities of these metal nanocomposites were studied for the dehydrogenation of ammonia–borane in methanol. Three moles of H2 were liberated in 2.5 min and 4.2 min in case of Co–Co2B and Ni–Ni3B nanocomposites, respectively (catalyst/AB = 0.2). The Co–Ni–B nanocomposite showed greater activity compared to individual metal–metal boride nanocomposites: 3 moles of H2 were liberated in 1.5 min (catalyst/AB = 0.2). The catalysts were highly recyclable and the activities remained almost unchanged even after several cycles.

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来源期刊

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
自引率: 10.3%
年发文量: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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