In-situ spectroscopic studies of rhodium catalyzed production of hydrogen from dimethylamine borane: Homogeneous or heterogeneous catalysis?

Yongsheng Chen; John L. Fulton; John C. Linehan; Tom Autrey

In-situ spectroscopic studies of rhodium catalyzed production of hydrogen from dimethylamine borane: Homogeneous or heterogeneous catalysis?

Yongsheng Chen, John L. Fulton, John C. Linehan, Tom Autrey

Pacific Northwest National Laboratory

Research output: Contribution to journal › Conference article

1 Citation (Scopus)

Abstract

The mechanism of catalytic B-N bond formation in amine borane complexes was studied as potential new materials for hydrogen storage. Results using 11B NMR spectroscopy to monitor the kinetics of hydrogen release and in situ XAFS to characterize the active catalyst species in the Rh catalyzed dehydrocoupling reaction of dimethylamine borane complex in toluene were presented. dimethylamine borane was rapidly converted to the cyclic dimer with concurrent lose of hydrogen at room temperature with a half-life of ∼ 30 min using [Rh(cod)Cl]₂ as the catalyst precursor. The EXAFS results suggested that the predominate transition metal species is a Rh(0) cluster with no more than 4-6 core Rh atoms with strongly ligands. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

Original language	English
Pages (from-to)	FUEL-224
Journal	ACS National Meeting Book of Abstracts
Volume	228
Issue number	1
Publication status	Published - Jan 1 2004
Event	Abstracts of Papers - 228th ACS National Meeting - Philadelphia, PA, United States Duration: Aug 22 2004 → Aug 26 2004

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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Chen, Y., Fulton, J. L., Linehan, J. C., & Autrey, T. (2004). In-situ spectroscopic studies of rhodium catalyzed production of hydrogen from dimethylamine borane: Homogeneous or heterogeneous catalysis? ACS National Meeting Book of Abstracts, 228(1), FUEL-224.

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title = "In-situ spectroscopic studies of rhodium catalyzed production of hydrogen from dimethylamine borane: Homogeneous or heterogeneous catalysis?",

abstract = "The mechanism of catalytic B-N bond formation in amine borane complexes was studied as potential new materials for hydrogen storage. Results using 11B NMR spectroscopy to monitor the kinetics of hydrogen release and in situ XAFS to characterize the active catalyst species in the Rh catalyzed dehydrocoupling reaction of dimethylamine borane complex in toluene were presented. dimethylamine borane was rapidly converted to the cyclic dimer with concurrent lose of hydrogen at room temperature with a half-life of ∼ 30 min using [Rh(cod)Cl]2 as the catalyst precursor. The EXAFS results suggested that the predominate transition metal species is a Rh(0) cluster with no more than 4-6 core Rh atoms with strongly ligands. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).",

author = "Yongsheng Chen and Fulton, {John L.} and Linehan, {John C.} and Tom Autrey",

year = "2004",

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note = "Abstracts of Papers - 228th ACS National Meeting ; Conference date: 22-08-2004 Through 26-08-2004",

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T1 - In-situ spectroscopic studies of rhodium catalyzed production of hydrogen from dimethylamine borane

T2 - Abstracts of Papers - 228th ACS National Meeting

AU - Chen, Yongsheng

AU - Fulton, John L.

AU - Linehan, John C.

AU - Autrey, Tom

PY - 2004/1/1

Y1 - 2004/1/1

N2 - The mechanism of catalytic B-N bond formation in amine borane complexes was studied as potential new materials for hydrogen storage. Results using 11B NMR spectroscopy to monitor the kinetics of hydrogen release and in situ XAFS to characterize the active catalyst species in the Rh catalyzed dehydrocoupling reaction of dimethylamine borane complex in toluene were presented. dimethylamine borane was rapidly converted to the cyclic dimer with concurrent lose of hydrogen at room temperature with a half-life of ∼ 30 min using [Rh(cod)Cl]2 as the catalyst precursor. The EXAFS results suggested that the predominate transition metal species is a Rh(0) cluster with no more than 4-6 core Rh atoms with strongly ligands. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

AB - The mechanism of catalytic B-N bond formation in amine borane complexes was studied as potential new materials for hydrogen storage. Results using 11B NMR spectroscopy to monitor the kinetics of hydrogen release and in situ XAFS to characterize the active catalyst species in the Rh catalyzed dehydrocoupling reaction of dimethylamine borane complex in toluene were presented. dimethylamine borane was rapidly converted to the cyclic dimer with concurrent lose of hydrogen at room temperature with a half-life of ∼ 30 min using [Rh(cod)Cl]2 as the catalyst precursor. The EXAFS results suggested that the predominate transition metal species is a Rh(0) cluster with no more than 4-6 core Rh atoms with strongly ligands. This is an abstract of a paper presented at the 228th ACS National Meeting (Philadelphia, PA, 8/22-26/2004).

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