Irreversible high-Temperature hydrogen interaction with the metal organic framework Cu3(BTC)2t

A. Grzech; J. Yang; T.J. Dingemans; S. Subramanian; P.C.M.M. Magusin; F.M. Mulder

doi:10.1021/jp206821f

Irreversible high-Temperature hydrogen interaction with the metal organic framework Cu3(BTC)2t

A. Grzech, J. Yang, T.J. Dingemans, S. Subramanian, P.C.M.M. Magusin, F.M. Mulder

Inorganic Materials & Catalysis

Research output: Contribution to journal › Article › Academic › peer-review

20 Citations (Scopus)

Abstract

Unsaturated metal coordination sites in metal organic frameworks (MOFs) offer preferential hydrogen adsorption sites. In addition, MOFs can be applied as scaffolds for nano metal hydrides operating at elevated temperatures. For these reasons, the thermal stability of the framework with unsaturated Cu2+ coordination sites in a hydrogen atmosphere has been investigated in Cu3(BTC)2. It is found that Cu3(BTC)2 irreversibly binds 1.1 wt % of hydrogen at the temperatures between 323 and 423 K and 2 bar H2 pressure, which corresponds to three hydrogen atoms per BTC ligand. In accordance, FT-IR and NMR spectroscopy show that the BTC linkers are converted to their acid form, whereas XRD reveals the presence of reduced Cu0 metal particles and decomposition of the framework. When designing more strongly interacting MOFs for H2 storage applications or as template for light metal hydrides, one has to take possible reduction of the metal centers and the stability of the lattice into account.

Original language	English
Pages (from-to)	21521-21525
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	115
Issue number	43
DOIs	https://doi.org/10.1021/jp206821f
Publication status	Published - 2011

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title = "Irreversible high-Temperature hydrogen interaction with the metal organic framework Cu3(BTC)2t",

abstract = "Unsaturated metal coordination sites in metal organic frameworks (MOFs) offer preferential hydrogen adsorption sites. In addition, MOFs can be applied as scaffolds for nano metal hydrides operating at elevated temperatures. For these reasons, the thermal stability of the framework with unsaturated Cu2+ coordination sites in a hydrogen atmosphere has been investigated in Cu3(BTC)2. It is found that Cu3(BTC)2 irreversibly binds 1.1 wt % of hydrogen at the temperatures between 323 and 423 K and 2 bar H2 pressure, which corresponds to three hydrogen atoms per BTC ligand. In accordance, FT-IR and NMR spectroscopy show that the BTC linkers are converted to their acid form, whereas XRD reveals the presence of reduced Cu0 metal particles and decomposition of the framework. When designing more strongly interacting MOFs for H2 storage applications or as template for light metal hydrides, one has to take possible reduction of the metal centers and the stability of the lattice into account.",

author = "A. Grzech and J. Yang and T.J. Dingemans and S. Subramanian and P.C.M.M. Magusin and F.M. Mulder",

year = "2011",

doi = "10.1021/jp206821f",

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TY - JOUR

T1 - Irreversible high-Temperature hydrogen interaction with the metal organic framework Cu3(BTC)2t

AU - Grzech, A.

AU - Yang, J.

AU - Dingemans, T.J.

AU - Subramanian, S.

AU - Magusin, P.C.M.M.

AU - Mulder, F.M.

PY - 2011

Y1 - 2011

N2 - Unsaturated metal coordination sites in metal organic frameworks (MOFs) offer preferential hydrogen adsorption sites. In addition, MOFs can be applied as scaffolds for nano metal hydrides operating at elevated temperatures. For these reasons, the thermal stability of the framework with unsaturated Cu2+ coordination sites in a hydrogen atmosphere has been investigated in Cu3(BTC)2. It is found that Cu3(BTC)2 irreversibly binds 1.1 wt % of hydrogen at the temperatures between 323 and 423 K and 2 bar H2 pressure, which corresponds to three hydrogen atoms per BTC ligand. In accordance, FT-IR and NMR spectroscopy show that the BTC linkers are converted to their acid form, whereas XRD reveals the presence of reduced Cu0 metal particles and decomposition of the framework. When designing more strongly interacting MOFs for H2 storage applications or as template for light metal hydrides, one has to take possible reduction of the metal centers and the stability of the lattice into account.

AB - Unsaturated metal coordination sites in metal organic frameworks (MOFs) offer preferential hydrogen adsorption sites. In addition, MOFs can be applied as scaffolds for nano metal hydrides operating at elevated temperatures. For these reasons, the thermal stability of the framework with unsaturated Cu2+ coordination sites in a hydrogen atmosphere has been investigated in Cu3(BTC)2. It is found that Cu3(BTC)2 irreversibly binds 1.1 wt % of hydrogen at the temperatures between 323 and 423 K and 2 bar H2 pressure, which corresponds to three hydrogen atoms per BTC ligand. In accordance, FT-IR and NMR spectroscopy show that the BTC linkers are converted to their acid form, whereas XRD reveals the presence of reduced Cu0 metal particles and decomposition of the framework. When designing more strongly interacting MOFs for H2 storage applications or as template for light metal hydrides, one has to take possible reduction of the metal centers and the stability of the lattice into account.

U2 - 10.1021/jp206821f

DO - 10.1021/jp206821f

M3 - Article

SN - 1932-7447

VL - 115

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EP - 21525

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 43

ER -

Irreversible high-Temperature hydrogen interaction with the metal organic framework Cu3(BTC)2t

Abstract

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