Altered thermodynamic and kinetic properties of MgH2 infiltrated in microporous scaffold

Zhirong Zhao-Karger; Jianjiang Hu; Arne Roth; Di Wang; Christian Kübel; Wiebke Lohstroh; Maximilian Fichtner

doi:10.1039/C0CC03072D

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Altered thermodynamic and kinetic properties of MgH₂ infiltrated in microporous scaffold†‡

Zhirong Zhao-Karger,^a Jianjiang Hu,^a Arne Roth,^a Di Wang,^a Christian Kübel,^a Wiebke Lohstroh^a and Maximilian Fichtner*^a

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* Corresponding authors

^a Karlsruhe Institute of Technology, Institute of Nanotechnology, P.O. Box 3640, D-76021 Karlsruhe, Germany
E-mail: m.fichtner@kit.edu
Fax: +49 7247 82 6368
Tel: +49 7247 82 5340

Abstract

MgH₂ nanoparticles with a size of <3 nm were formed by direct hydrogenation of Bu₂Mg inside the pores of a carbon scaffold. The activation energy for the dehydrogenation was lowered by 52 kJ mol⁻¹ compared to the bulk material, and a significantly reduced reaction enthalpy of 63.8 ± 0.5 kJ mol⁻¹ and entropy (117.2 ± 0.8 J mol⁻¹) was found for the nanoconfined system.

This article is part of the themed collection: Hydrogen

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Experimental details and additional data PDF (605K)

Article information

DOI: https://doi.org/10.1039/C0CC03072D
Article type: Communication
Submitted: 05 Aug 2010
Accepted: 14 Sep 2010
First published: 04 Oct 2010

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Chem. Commun., 2010,46, 8353-8355

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Altered thermodynamic and kinetic properties of MgH₂ infiltrated in microporous scaffold

Z. Zhao-Karger, J. Hu, A. Roth, D. Wang, C. Kübel, W. Lohstroh and M. Fichtner, Chem. Commun., 2010, 46, 8353 DOI: 10.1039/C0CC03072D

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