Document Detail

High-density storage of H2 in microporous crystalline silica at ambient conditions.
MedLine Citation:
PMID:  17361969     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Molecular hydrogen was encapsulated in the cages of clathrasil decadodecasil 3R (DD3R) during the hydrothermal synthesis of this microporous silicate. The crystalline structure of DD3R facilitates high-density hydrogen storage at ambient conditions. Prompt gamma activation analysis (PGAA) revealed that on average about one molecule of H2 is trapped in each (5(12)) cage of DD3R. The presence of molecular hydrogen inside the DD3R framework was confirmed by solid-state 1H NMR spectroscopy. Temperature-programmed decomposition (TPD) in combination with mass spectrometry showed that the encapsulated hydrogen is released upon decomposition of the clathrasil structure. This release can be promoted by the presence of water.
Annemieke W C van den Berg; Paolo P Pescarmona; Joop Schoonman; Jacobus C Jansen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chemistry (Weinheim an der Bergstrasse, Germany)     Volume:  13     ISSN:  0947-6539     ISO Abbreviation:  Chemistry     Publication Date:  2007  
Date Detail:
Created Date:  2007-04-25     Completed Date:  2007-07-24     Revised Date:  2009-08-04    
Medline Journal Info:
Nlm Unique ID:  9513783     Medline TA:  Chemistry     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  3590-5     Citation Subset:  -    
Ceramic Membrane Centre The Pore, DelftChemTech, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands.
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