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Article: Heterogeneous catalytic generation of hydrogen from formic acid under pressurized aqueous conditions
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TitleHeterogeneous catalytic generation of hydrogen from formic acid under pressurized aqueous conditions
 
AuthorsTing, SW1
Hu, C1
Pulleri, JK1
Chan, KY1
 
Issue Date2012
 
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecr
 
CitationIndustrial And Engineering Chemistry Research, 2012, v. 51 n. 13, p. 4861-4867 [How to Cite?]
DOI: http://dx.doi.org/10.1021/ie2030079
 
AbstractPtRuBiO x/C catalyst has shown the promise for catalyzing CO-free hydrogen generation from formic acid in aqueous solution at room temperature and atmospheric pressure. In order to produce hydrogen at moderate-pressure to feed into a fuel cell stack, postgeneration compression is needed to overcome the flow resistance. In the present study, liquid formic acid decomposition over the PtRuBiO x/C catalyst was investigated at temperatures ranging from 80 to 140 °C and pressure up to 350 psi. It was found that the selectivity of the catalyst for formic acid decomposition remained almost 100%, and a complete conversion of formic acid could be achieved in several hours, which is significantly shorter than that at ambient conditions. The overall activation energy was also found to be 78 kJ•mol -1 under present conditions. The increase from the previously determined value of 37 kJ/mol at open atmosphere pressure was due to carbon dioxide release beyond saturation at elevated pressures. Furthermore, the stability of the catalyst was confirmed by performing a series of repeated runs. © 2012 American Chemical Society.
 
ISSN0888-5885
2013 Impact Factor: 2.235
 
DOIhttp://dx.doi.org/10.1021/ie2030079
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorTing, SW
 
dc.contributor.authorHu, C
 
dc.contributor.authorPulleri, JK
 
dc.contributor.authorChan, KY
 
dc.date.accessioned2012-08-16T05:48:26Z
 
dc.date.available2012-08-16T05:48:26Z
 
dc.date.issued2012
 
dc.description.abstractPtRuBiO x/C catalyst has shown the promise for catalyzing CO-free hydrogen generation from formic acid in aqueous solution at room temperature and atmospheric pressure. In order to produce hydrogen at moderate-pressure to feed into a fuel cell stack, postgeneration compression is needed to overcome the flow resistance. In the present study, liquid formic acid decomposition over the PtRuBiO x/C catalyst was investigated at temperatures ranging from 80 to 140 °C and pressure up to 350 psi. It was found that the selectivity of the catalyst for formic acid decomposition remained almost 100%, and a complete conversion of formic acid could be achieved in several hours, which is significantly shorter than that at ambient conditions. The overall activation energy was also found to be 78 kJ•mol -1 under present conditions. The increase from the previously determined value of 37 kJ/mol at open atmosphere pressure was due to carbon dioxide release beyond saturation at elevated pressures. Furthermore, the stability of the catalyst was confirmed by performing a series of repeated runs. © 2012 American Chemical Society.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationIndustrial And Engineering Chemistry Research, 2012, v. 51 n. 13, p. 4861-4867 [How to Cite?]
DOI: http://dx.doi.org/10.1021/ie2030079
 
dc.identifier.doihttp://dx.doi.org/10.1021/ie2030079
 
dc.identifier.epage4867
 
dc.identifier.hkuros203312
 
dc.identifier.issn0888-5885
2013 Impact Factor: 2.235
 
dc.identifier.issue13
 
dc.identifier.scopuseid_2-s2.0-84859470872
 
dc.identifier.spage4861
 
dc.identifier.urihttp://hdl.handle.net/10722/159292
 
dc.identifier.volume51
 
dc.languageeng
 
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecr
 
dc.publisher.placeUnited States
 
dc.relation.ispartofIndustrial and Engineering Chemistry Research
 
dc.relation.referencesReferences in Scopus
 
dc.titleHeterogeneous catalytic generation of hydrogen from formic acid under pressurized aqueous conditions
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong