Article: Photocatalytic reforming of C3-polyols for H 2 production. Part (I). Role of their OH groups

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TitlePhotocatalytic reforming of C3-polyols for H 2 production. Part (I). Role of their OH groups
AuthorsFu, X1 2
Wang, X3
Leung, DYC1
Gu, Q3
Chen, S2
Huang, H1
KeywordsHydrogen production
OH group
Photocatalytic reforming
Polyols
Pt/TiO 2
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apcatb
CitationApplied Catalysis B: Environmental, 2011, v. 106 n. 3-4, p. 681-688 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.apcatb.2011.05.045
AbstractTiO 2 photocatalyst was prepared by sol-gel method, and then loaded with 1.0wt.% Pt by impregnation-chemical reduction method (denoted as PT). Photocatalytic reforming (PR) of C3-polyols (glycerol, propyleneglycol, and isopropanol) which have similar carbohydrate structure but possess different number of OH groups for H 2 production over PT was performed to study the role of their OH groups in the reforming reaction. The results indicated that the H 2 evolution rate and the mineralization efficiency of polyols (oxidized to CO 2) are highly correlated with the number of OH groups they contain. The more OH group it has, the higher H 2 evolution rate can be obtained, as well as the generation of CO 2. The roles of the OH group were discussed in terms of providing an anchor for the chemical adsorption of polyols to the PT and serving as an effective holes scavenger to trigger the reforming reaction. For a polyol molecule, only OH directly connected segment can be effectively converted to H 2 and CO 2 via the PR process. © 2011 Elsevier B.V.
ISSN0926-3373
2011 Impact Factor: 5.625
2011 SCImago Journal Rankings: 0.320
DOIhttp://dx.doi.org/10.1016/j.apcatb.2011.05.045
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorFu, X
dc.contributor.authorWang, X
dc.contributor.authorLeung, DYC
dc.contributor.authorGu, Q
dc.contributor.authorChen, S
dc.contributor.authorHuang, H
dc.date.accessioned2011-09-23T05:49:11Z
dc.date.available2011-09-23T05:49:11Z
dc.date.issued2011
dc.description.abstractTiO 2 photocatalyst was prepared by sol-gel method, and then loaded with 1.0wt.% Pt by impregnation-chemical reduction method (denoted as PT). Photocatalytic reforming (PR) of C3-polyols (glycerol, propyleneglycol, and isopropanol) which have similar carbohydrate structure but possess different number of OH groups for H 2 production over PT was performed to study the role of their OH groups in the reforming reaction. The results indicated that the H 2 evolution rate and the mineralization efficiency of polyols (oxidized to CO 2) are highly correlated with the number of OH groups they contain. The more OH group it has, the higher H 2 evolution rate can be obtained, as well as the generation of CO 2. The roles of the OH group were discussed in terms of providing an anchor for the chemical adsorption of polyols to the PT and serving as an effective holes scavenger to trigger the reforming reaction. For a polyol molecule, only OH directly connected segment can be effectively converted to H 2 and CO 2 via the PR process. © 2011 Elsevier B.V.
dc.description.naturelink_to_subscribed_fulltext
dc.identifier.citationApplied Catalysis B: Environmental, 2011, v. 106 n. 3-4, p. 681-688 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.apcatb.2011.05.045
dc.identifier.doihttp://dx.doi.org/10.1016/j.apcatb.2011.05.045
dc.identifier.epage688
dc.identifier.hkuros195037
dc.identifier.hkuros200084
dc.identifier.isiWOS:000294092400048
Funding AgencyGrant Number
NSFC21003021
20873022
20973071
National High Tech R&D Program of China (863 Program)2008AA06Z326
HKU
Funding Information:

This work was financially supported by the NSFC Grants (Nos. 21003021, 20873022, and 20973071), and the National High Tech R&D Program of China (863 Program, 2008AA06Z326). The authors at the University of Hong Kong (HKU) acknowledgement HKU for supporting part of the work in this paper.

dc.identifier.issn0926-3373
2011 Impact Factor: 5.625
2011 SCImago Journal Rankings: 0.320
dc.identifier.issue3-4
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-79960843690
dc.identifier.spage681
dc.identifier.urihttp://hdl.handle.net/10722/139403
dc.identifier.volume106
dc.languageeng
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/apcatb
dc.publisher.placeNetherlands
dc.relation.ispartofApplied Catalysis B: Environmental
dc.relation.referencesReferences in Scopus
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Applied Catalysis B: Environmental. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis B: Environmental, [VOL 106, ISSUE 3-4, 2011] DOI 10.1016/j.apcatb.2011.05.045
dc.subjectHydrogen production
dc.subjectOH group
dc.subjectPhotocatalytic reforming
dc.subjectPolyols
dc.subjectPt/TiO 2
dc.titlePhotocatalytic reforming of C3-polyols for H 2 production. Part (I). Role of their OH groups
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Huaibei Normal University
  3. Fuzhou University