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Conference Paper: Investigation on reverse water-gas shift over La2NiO4 catalyst by cw-cavity enhanced absorption spectroscopy during CH4/CO2 reforming

TitleInvestigation on reverse water-gas shift over La2NiO4 catalyst by cw-cavity enhanced absorption spectroscopy during CH4/CO2 reforming
Authors
Liu, BSLi, LAu, CTCheung, ASC
Issue Date2007
PublisherAmerican Chemical Society. The Journal's web site is located at http://www.chemistry.org/portal/a/c/s/1/acsdisplay.html?DOC=meetingspast.html
Citation
Acs National Meeting Book Of Abstracts, 2007 How to Cite?
AbstractReverse water-gas shift (RWDS) reaction over La2NiO4 catalyst was investigated during CH4/CO2 reforming by continuous wave cavity enhanced absorption spectroscopy, a sensitive absorption technique. The results indicated that the RWGS reaction promoted the conversion of CO2 and decreased the partial pressure of hydrogen. By properly adjusting the pressure of reaction system, it is possible to suppress the occurrence of RWGS reaction and increase the selectivity of CH4/CO2 reforming. The intermediates, such as CHO and CH3 of CH4/CO2 reforming was observed by means of liquid-N2 for quenching technique and primarily confirmed a reaction step: CH3+ [O] = CHxO. In addition, XPS results verified that nickel over catalyst after CH4/CO2 reforming existed in elemental state. C1s and O1s spectra of catalyst observed before and after reforming indicated the adsorption of CO2 species reduced in working La2NiO4 catalyst, possibly related to the desorption of CO2 under the condition of vacuum.
Persistent Identifierhttp://hdl.handle.net/10722/148534
ISSN
0065-7727

 

DC FieldValueLanguage
dc.contributor.authorLiu, BSen_HK
dc.contributor.authorLi, Len_HK
dc.contributor.authorAu, CTen_HK
dc.contributor.authorCheung, ASCen_HK
dc.date.accessioned2012-05-29T06:13:34Z-
dc.date.available2012-05-29T06:13:34Z-
dc.date.issued2007en_HK
dc.identifier.citationAcs National Meeting Book Of Abstracts, 2007en_HK
dc.identifier.issn0065-7727en_HK
dc.identifier.urihttp://hdl.handle.net/10722/148534-
dc.description.abstractReverse water-gas shift (RWDS) reaction over La2NiO4 catalyst was investigated during CH4/CO2 reforming by continuous wave cavity enhanced absorption spectroscopy, a sensitive absorption technique. The results indicated that the RWGS reaction promoted the conversion of CO2 and decreased the partial pressure of hydrogen. By properly adjusting the pressure of reaction system, it is possible to suppress the occurrence of RWGS reaction and increase the selectivity of CH4/CO2 reforming. The intermediates, such as CHO and CH3 of CH4/CO2 reforming was observed by means of liquid-N2 for quenching technique and primarily confirmed a reaction step: CH3+ [O] = CHxO. In addition, XPS results verified that nickel over catalyst after CH4/CO2 reforming existed in elemental state. C1s and O1s spectra of catalyst observed before and after reforming indicated the adsorption of CO2 species reduced in working La2NiO4 catalyst, possibly related to the desorption of CO2 under the condition of vacuum.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://www.chemistry.org/portal/a/c/s/1/acsdisplay.html?DOC=meetingspast.htmlen_HK
dc.relation.ispartofACS National Meeting Book of Abstractsen_HK
dc.titleInvestigation on reverse water-gas shift over La2NiO4 catalyst by cw-cavity enhanced absorption spectroscopy during CH4/CO2 reformingen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailCheung, ASC:hrsccsc@hku.hken_HK
dc.identifier.authorityCheung, ASC=rp00676en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-37349082484en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLiu, BS=7408690821en_HK
dc.identifier.scopusauthoridLi, L=37004098700en_HK
dc.identifier.scopusauthoridAu, CT=7102805683en_HK
dc.identifier.scopusauthoridCheung, ASC=7401806538en_HK
dc.identifier.issnl0065-7727-

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