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Impact of Preparation and Handling on the Hydrogen Storage Properties of Zn4O(1,4-benzenedicarboxylate)3 (MOF-5)

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Due to its clean combustion and high heating value, hydrogen is under consideration as a replacement for fossil fuels in mobile applications. To achieve this goal, however, an effective means of on-board storage is required, prompting the U.S. Department of Energy to set 2010 storage system performance targets of 6.0 wt
% H2 and 45 g H2/L. Recent work has exposed the considerable potential for cryogenic hydrogen storage in microporous metalorganic frameworks exhibiting robust three-dimensional network structures and high surface areas.3 In particular, frameworks consisting of tetrahedral [Zn4O]6+ units linked via rigid arylcarboxylate
ligands were found to adsorb large amounts of hydrogen reversibly at low temperature and moderate pressures. For example, at 77 K and pressures of up to 50 bar, Zn4O(BDC)3 (MOF-5, BDC2-) 1,4-benzenedicarboxylate) was shown to adsorb 5.2 excess wt % H2,4 while Zn4O(BTB) (MOF-177, BTB3- ) 1,3,5-benzenetribenzoate)
exhibited a record uptake of 75 mg/1075 mg ) 7.0 excess wt % H2.5 Here, we report conditions for the synthesis and handling of Zn4O(BDC)3 that significantly increase its gas adsor ption capacity, resulting in the highest gravimetric and volumetric loadings yet reported for a cryogenic hydrogen storage material.

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Informasi Detail

Judul Seri

J. AM. CHEM. SOC.

No. Panggil

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Penerbit

: American Chemical Society., 2007

Deskripsi Fisik

J. AM. CHEM. SOC. 2007, 129, 14176-14177

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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