| NMR imaging of catalytic hydrogenation in microreactors with the use of para-hydrogen. | |
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MedLine Citation:
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PMID: 18218891 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Catalysis is vital to industrial chemistry, and the optimization of catalytic reactors attracts considerable resources. It has proven challenging to correlate the active regions in heterogeneous catalyst beds with morphology and to monitor multistep reactions within the bed. We demonstrate techniques, using magnetic resonance imaging and para-hydrogen (p-H2) polarization, that allow direct visualization of gas-phase flow and the density of active catalyst in a packed-bed microreactor, as well as control over the dynamics of the polarized state in space and time to facilitate the study of subsequent reactions. These procedures are suitable for characterizing reactors and reactions in microfluidic devices where low sensitivity of conventional magnetic resonance would otherwise be the limiting factor. |
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Authors:
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Louis-S Bouchard; Scott R Burt; M Sabieh Anwar; Kirill V Kovtunov; Igor V Koptyug; Alexander Pines |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 319 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2008 Jan |
Date Detail:
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Created Date: 2008-01-25 Completed Date: 2008-02-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 442-5 Citation Subset: - |
Affiliation:
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Materials Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, CA 94720, USA. louis.bouchard@gmail.com |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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