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首页> 外文期刊>Microporous and mesoporous materials: The offical journal of the International Zeolite Association >RuCuCo nanoparticles supported on MIL-101 as a novel highly efficient catalysts for the hydrolysis of ammonia borane
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RuCuCo nanoparticles supported on MIL-101 as a novel highly efficient catalysts for the hydrolysis of ammonia borane

机译：载于MIL-101上的RuCuCo纳米颗粒作为新型高效的硼硼烷水解催化剂

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摘要

The catalysts containing Ru, CuCo and trimetallic RuCuCo nanoparticles were successfully synthesized by in-situ reduction of Ru, Cu and Co salts into the highly porous and hydrothermally stable metal-organic framework MIL-101 via a simple liquid impregnation method, and then characterized the structure, size, composition and specific area of the catalysts with different metal nanoparticles loading by XRD, TEM, EDX, ICP-AES, XPS and BET techniques. Their catalytic activities had been examined in ammonia borane hydrolysis to generate hydrogen gas. The result shows that the as-synthesized RuCuCo@MIL-101 exhibits a higher catalytic activity than those of monometallic Ru and bimetallic CuCo counterparts loadings, owing to the strong trimetallic synergistic effects, uniform distribution of nanoparticles as well as bifunctional effects between RuCuCo nanoparticles and the host of MIL-101, with the turn over frequency (TOF) value of 241.2 mol H-2 min(-1) (mol Ru)(-1) and the activation energy (Ea) is determined to be 48 kJ/mol. Moreover, this catalyst exhibits satisfied durability after five cycles for the hydrolytic dehydrogenation of ammonia borane. (C) 2015 Elsevier Inc. All rights reserved.
机译：通过简单的液体浸渍法将Ru，Cu和Co盐原位还原成高度多孔和水热稳定的金属有机骨架MIL-101，成功地合成了含Ru，CuCo和三金属RuCuCo纳米粒子的催化剂，然后对其进行了表征。通过XRD，TEM，EDX，ICP-AES，XPS和BET技术对具有不同金属纳米颗粒负载量的催化剂的结构，尺寸，组成和比表面积进行了分析。在氨硼烷水解产生氢气中检查了它们的催化活性。结果表明，由于强的三金属协同作用，纳米粒子的均匀分布以及RuCuCo纳米粒子和双金属间的双功能效应，因此合成后的RuCuCo @ MIL-101具有比单金属Ru和双金属CuCo对应物更高的催化活性。 MIL-101的主体，其周转频率（TOF）值为241.2 mol H-2 min（-1）（mol Ru）（-1），活化能（Ea）确定为48 kJ / mol 。此外，该催化剂在氨硼烷的水解脱氢的五个循环后表现出令人满意的耐久性。 （C）2015 Elsevier Inc.保留所有权利。

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