Using TiO₂ photocatalyst with adsorbent to oxidize carbon monoxide in rich hydrogen

Simple item page
dc.contributor.authorNishimura, A.
dc.contributor.authorHisada, T.
dc.contributor.authorHirota, M.
dc.contributor.authorKubota, M.
dc.contributor.authorHu, E.
dc.date.issued2010
dc.description.abstractPolymer electrolyte fuel cell (PEFC) starts to be used in industries and homes in the world. Hydrogen (H<inf>2</inf>) is normally used as the fuel to power PEFC. However, the power generation performance of PEFC is harmed by the carbon monoxide (CO) in the H<inf>2</inf> that is often produced from methane (CH<inf>4</inf>). Normally, precious metal catalysts and thermal energy are used to remove CO in rich H<inf>2</inf>, which are costly. Therefore, an alternative process, i.e. using the TiO<inf>2</inf> photocatalyst combined with adsorbent to oxidize the CO is studied in this paper. The purpose of this study is to understand oxidization characteristics and experimental conditions for the alternative process, in order to improve its efficiency. The impacts of initial concentration ratio of O<inf>2</inf> to CO, filling volume ratio of the TiO <inf>2</inf> particles combined with silica to reactor, and different preparation methods of TiO<inf>2</inf> with adsorbent on the CO oxidization performance are investigated. The optimum initial concentration of O<inf>2</inf> and best filling volume ratio of the TiO<inf>2</inf> particles combined with silica to reactor was found to be 4 vol% and 50 vol%, respectively, under the experimental conditions. By using TiO<inf>2</inf> particles combined with mesoporous silica, the concentration of CO in the reactor was reduced from 10 800 ppmV down to 27 ppmV after UV light illumination of 48 h. © 2010 Elsevier B.V.
dc.description.statementofresponsibilityAkira Nishimura, Tomokazu Hisada, Masafumi Hirota, Mitsuhiro Kubota, Eric Hu
dc.identifier.citationCatalysis Today, 2010; 158(3-4):296-304
dc.identifier.doi10.1016/j.cattod.2010.03.076
dc.identifier.issn0920-5861
dc.identifier.issn1873-4308
dc.identifier.orcidHu, E. [0000-0002-7390-0961]
dc.identifier.urihttp://hdl.handle.net/2440/60310
dc.language.isoen
dc.publisherElsevier Science BV
dc.rightsCopyright © 2010 Elsevier B.V. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.cattod.2010.03.076
dc.subjectTiO₂ photocatalyst
dc.subjectCO oxidization
dc.subjectSilica
dc.subjectH₂
dc.subjectPEFC
dc.titleUsing TiO₂ photocatalyst with adsorbent to oxidize carbon monoxide in rich hydrogen
dc.title.alternativeUsing TiO(2) photocatalyst with adsorbent to oxidize carbon monoxide in rich hydrogen
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Mechanical Engineering publications
Environment Institute publications