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金属有机骨架固载的 Au-Pd 纳米粒子协同催化甲酸脱氢用于化学储氢。

Synergistic catalysis of metal-organic framework-immobilized Au-Pd nanoparticles in dehydrogenation of formic acid for chemical hydrogen storage.

机构信息

National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan.

出版信息

J Am Chem Soc. 2011 Aug 10;133(31):11822-5. doi: 10.1021/ja200122f. Epub 2011 Jul 19.

Abstract

Bimetallic Au-Pd nanoparticles (NPs) were successfully immobilized in the metal-organic frameworks (MOFs) MIL-101 and ethylenediamine (ED)-grafted MIL-101 (ED-MIL-101) using a simple liquid impregnation method. The resulting composites, Au-Pd/MIL-101 and Au-Pd/ED-MIL-101, represent the first highly active MOF-immobilized metal catalysts for the complete conversion of formic acid to high-quality hydrogen at a convenient temperature for chemical hydrogen storage. Au-Pd NPs with strong bimetallic synergistic effects have a much higher catalytic activity and a higher tolerance with respect to CO poisoning than monometallic Au and Pd counterparts.

摘要

双金属 Au-Pd 纳米粒子(NPs)成功地通过简单的液相浸渍法固定在金属有机骨架(MOFs) MIL-101 和乙二胺(ED)接枝的 MIL-101(ED-MIL-101)中。所得复合材料 Au-Pd/MIL-101 和 Au-Pd/ED-MIL-101 代表了在用于化学储氢的便利温度下,首例用于完全转化甲酸为高质量氢气的高活性 MOF 固载金属催化剂。具有强双金属协同作用的 Au-Pd NPs 具有比单金属 Au 和 Pd 对应物更高的催化活性和对 CO 中毒的更高耐受性。

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