限域在金属有机骨架中的微小 Pd@Co 核壳纳米粒子用于高效催化。
Tiny Pd@Co core-shell nanoparticles confined inside a metal-organic framework for highly efficient catalysis.
机构信息
Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
出版信息
Small. 2015 Jan 7;11(1):71-6. doi: 10.1002/smll.201401875. Epub 2014 Sep 8.
A new strategy to pre-incorporate metal precursors followed by their in situ reduction is established to prepare tiny core-shell nanoparticles (NPs) stabilized by a metal-organic framework (MOF). The obtained Pd@Co core-shell NPs of ∼2.5 nm confined in the pores of a mesoporous MOF, MIL-101, exhibit synergistic and superior catalytic performance in hydrolytic dehydrogenation of NH3 BH3 under mild conditions compared to their monometallic and alloy counterparts as well as Pd@Co NPs located on a MOF surface.
建立了一种新的策略，通过预嵌入金属前体，然后进行原位还原，来制备由金属有机骨架（MOF）稳定的微小核壳纳米粒子（NPs）。将约 2.5nm 的 Pd@Co 核壳 NPs 限制在介孔 MOF MIL-101 的孔内，与单金属和合金相比，以及与位于 MOF 表面的 Pd@Co NPs 相比，在温和条件下，对 NH3BH3 的水解脱氢表现出协同和优越的催化性能。
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