Zeolite framework stabilized nickel(0) nanoparticles: Active and long-lived catalyst for hydrogen generation from the hydrolysis of ammonia-borane and sodium borohydride
Zeolite framework stabilized nickel(0) nanoparticles: Active and long-lived catalyst for hydrogen generation from the hydrolysis of ammonia-borane and sodium borohydride
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DOI：
10.1016/j.cattod.2010.09.022
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发表时间：
2011-07
期刊：
影响因子：
5.3
通讯作者：
M. Zahmakiran;Tuğçe Ayvalı;S. Akbayrak;S. Çalışkan;Derya Çelik;S. Özkar
中科院分区：
文献类型：
--
作者：
M. Zahmakiran;Tuğçe Ayvalı;S. Akbayrak;S. Çalışkan;Derya Çelik;S. Özkar
在储氢材料中，氨硼烷和硼氢化钠似乎是有希望的候选者，因为它们可以在温和条件下在水溶液中水解释放氢。在这里，我们报告了一种具有成本效益和高活性的镍（0）纳米粒子催化剂的氨硼烷和硼氢化钠的水解的发展。采用我们建立的方法制备了镍（0）纳米颗粒，并通过ICP-OES、XRD、TEM、HR-TEM、SEM、EDX、XPS、拉曼光谱和N2吸附-脱附等手段对其进行了表征。所有结果表明，镍（0）纳米粒子在沸石-Y的框架内形成。在硼氢化钠和氨-硼烷的水解反应中，镍（0）纳米粒子是一种高活性的催化剂。该催化剂具有可分离、可装瓶、可再分散、可重复使用等特点。该报告还包括两个基板，氨硼烷和硼氢化钠的催化水解取决于催化剂浓度，底物浓度和温度的详细动力学研究。
Among the hydrogen storage materials, ammonia-borane and sodium borohydride appear to be promising candidates as they can release hydrogen on hydrolysis in aqueous solution under mild conditions. Here, we report the development of a cost-effective and highly active nickel(0) nanoparticles catalyst for the hydrolysis of ammonia-borane and sodium borohydride. Nickel(0) nanoparticles confined in zeolite framework were prepared by using our previously established procedure and characterized by ICP-OES, XRD, TEM, HR-TEM, SEM, EDX, XPS, Raman spectroscopy and N2adsorption–desorption technique. All the results show that nickel(0) nanoparticles are formed within the framework of zeolite-Y. Nickel(0) nanoparticles confined in zeolite framework are highly active catalyst in the hydrolytic dehydrogenations of sodium borohydride and ammonia-borane. This catalyst is isolable, bottleable, redispersible and reusable. The report also includes the detailed kinetic study of the catalytic hydrolysis of both substrates, ammonia-borane and sodium borohydride depending on the catalyst concentration, substrate concentration, and temperature.