Document Detail


Observing High-Pressure Chemistry in Graphene Bubbles.
MedLine Citation:
PMID:  24259233     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Using IR spectroscopy, high-pressure reactions of molecules were observed in liquids entrapped by graphene nanobubbles formed at the graphene-diamond interface. Nanobubbles formed on graphene as a result of thermally induced bonding of its edges with diamond are highly impermeable, thus providing a good sealing of solvents within. Owing to the optical transparency of graphene and diamond, high-pressure chemical reactions within the bubbles can be probed with vibrational spectroscopy. By monitoring the conformational changes of pressure-sensitive molecules, the pressure within the nanobubble can be calibrated as a function of temperature and it is about 1 GPa at 600 K. The polymerization of buckministerfullerene (C60 ), which is symmetrically forbidden under ambient conditions, is observed to proceed in well-defined stages in the pressurized nanobubbles.
Authors:
Candy Haley Yi Xuan Lim; Milos Nesladek; Kian Ping Loh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-11-20
Journal Detail:
Title:  Angewandte Chemie (International ed. in English)     Volume:  -     ISSN:  1521-3773     ISO Abbreviation:  Angew. Chem. Int. Ed. Engl.     Publication Date:  2013 Nov 
Date Detail:
Created Date:  2013-11-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370543     Medline TA:  Angew Chem Int Ed Engl     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Graphene Research Centre, Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore); NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences #05-01, 28 Medical Drive, Singapore 117456 (Singapore).
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