Basit öğe kaydını göster

dc.contributor.authorDeligoz, Hüseyin
dc.contributor.authorOksuzomer, Faruk
dc.contributor.authorAri, Gulsen Albayrak
dc.contributor.authorYilmazturk, Serpil
dc.contributor.authorGumusoglu, Tolga
dc.date.accessioned2021-03-03T12:08:12Z
dc.date.available2021-03-03T12:08:12Z
dc.identifier.citationYilmazturk S., Gumusoglu T., Ari G. A. , Oksuzomer F., Deligoz H., "Fabrication and performance of catalyst-coated membranes by layer-by-layer deposition of catalyst onto Nafion for polymer electrolyte membrane fuel cells", JOURNAL OF POWER SOURCES, cilt.201, ss.88-94, 2012
dc.identifier.issn0378-7753
dc.identifier.othervv_1032021
dc.identifier.otherav_2c208446-a349-49f2-8f2b-b26f12139e6f
dc.identifier.urihttp://hdl.handle.net/20.500.12627/34386
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2011.10.116
dc.description.abstractIn this contribution, four comparative methods are described for the preparation of catalyst coated membranes (CCMs) via using layer-by-layer (LbL) technique. In the first method. LbL composite membrane is immersed into H2PtCl6 solution followed by reduction to metallic Pt. Secondly, Pt-C (Hispec 3000) dispersed in the positively charged polyelectrolyte is assembled onto the membrane support. Thirdly, anionic polyelectrolyte with external salt is used for the preparation of CCM. In the fourth method, reductive precipitation of platinum salt loaded on Vulcan XC complexes within LbL multilayer in the presence of Nation solution takes place. From SEM analysis, it is observed that the polyelectrolytes are deposited onto both sides of the pre-treated Nafion (R) 117 membrane successfully with Pt loadings of 0.023 mu g cm(-2) and 0.15 mu g cm(-2) for CCMs prepared according to method 1 reduced in 10 and 30 min, respectively. Single cell performance of MEA-6 based on CCM (PAH/PSS-H2PtCl6-Vulcan XC72-Nafion) prepared according to method 4 displays the best output performance (98 mW cm(-2)) due to the improved contact between the catalyst layer and the membrane. Furthermore the cell performance of MEA-6 is significantly improved (18%) due to creating new path for fuel and catalyst interaction (three phase boundary) compared to pristine Nafion (R) 117 based MEA. (C) 2011 Elsevier B.V. All rights reserved.
dc.language.isoeng
dc.subjectMühendislik ve Teknoloji
dc.subjectTemel Bilimler
dc.subjectKİMYA, FİZİKSEL
dc.subjectKimya
dc.subjectTemel Bilimler (SCI)
dc.subjectELEKTROKİMYA
dc.subjectENERJİ VE YAKITLAR
dc.subjectMühendislik
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMALZEME BİLİMİ, MULTIDISCIPLINARY
dc.subjectMalzeme Bilimi
dc.subjectTarımsal Bilimler
dc.subjectZiraat
dc.subjectTarım Makineleri
dc.subjectTarımda Enerji
dc.subjectBiyoyakıt Teknolojisi
dc.subjectFizikokimya
dc.subjectElektrokimya
dc.titleFabrication and performance of catalyst-coated membranes by layer-by-layer deposition of catalyst onto Nafion for polymer electrolyte membrane fuel cells
dc.typeMakale
dc.relation.journalJOURNAL OF POWER SOURCES
dc.contributor.departmentİstanbul Üniversitesi , ,
dc.identifier.volume201
dc.identifier.startpage88
dc.identifier.endpage94
dc.contributor.firstauthorID67073


Bu öğenin dosyaları:

DosyalarBoyutBiçimGöster

Bu öğe ile ilişkili dosya yok.

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster