About: Influence of counter-ions on the permeability of polypyrrole films to hydrogen

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Description	The influence of the size and nature of counter-ions on the permeability of polypyrrole films to hydrogen was tested. The permeabilities were determined using the method of limiting currents on a Pt rotating disc electrode with subsequent Koutecky-Levich analysis. The work has focused mainly on the influence of the anion size, but the effect of polymeric anion hydrophilicity was also considered. Attention was especially paid to Nafion as a counter-ion. It was found that Nafion markedly increases polypyrrole permeability. The film growth was followed by means of EQCN, which allowed determination of the polypyrrole film densities. The influence of the size and nature of counter-ions on the permeability of polypyrrole films to hydrogen was tested. The permeabilities were determined using the method of limiting currents on a Pt rotating disc electrode with subsequent Koutecky-Levich analysis. The work has focused mainly on the influence of the anion size, but the effect of polymeric anion hydrophilicity was also considered. Attention was especially paid to Nafion as a counter-ion. It was found that Nafion markedly increases polypyrrole permeability. The film growth was followed by means of EQCN, which allowed determination of the polypyrrole film densities. (en) Byl testován vliv velikosti a charakteru protiontů na permeabilitu polypyrrolových filmů pro vodík. Permeability byly stanoveny metodou limitních proudů na rotující diskové elektrodě a následnou Kouteckého-Levičovou analýzou. Práce se zaměřila především na vliv velikosti intu, ale byl studován také vliv hydrofility polymerního aniontu. Zvláštní pozornost byla věnována Nafionu jako protiontu. Bylo zjištěno, že Nafion výrazně zvyšuje permebilitu polypyrrolu. Růst filmu byl sledován EQCN, to umožnilo stanovení hustot polypyrrolových filmů. (cs)
Title	Influence of counter-ions on the permeability of polypyrrole films to hydrogen Influence of counter-ions on the permeability of polypyrrole films to hydrogen (en) Vliv protiontů na permeabilitu polypyrrolového filmů pro vodík (cs)
skos:prefLabel	Influence of counter-ions on the permeability of polypyrrole films to hydrogen Influence of counter-ions on the permeability of polypyrrole films to hydrogen (en) Vliv protiontů na permeabilitu polypyrrolového filmů pro vodík (cs)
skos:notation	RIV/60461373:22310/06:00016953!RIV07-GA0-22310___
http://linked.open.../vavai/riv/strany	703-710
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA104/02/0664)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Bouzek, Karel Holzhauser, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	479352
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/06:00016953
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Counter-ion; Nafion permeability; polypyrrole; proton exchange membrane fuel cell (PEM FC) (en)
http://linked.open.../riv/klicoveSlovo	permeability polypyrrole Counter-ion Nafion&#61650 proton exchange membrane fuel cell (PEM FC)
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[0368E8532DDC]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Electrochemistry
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Platinum modified conductiong polymers as an alternative anode material for the low temperature fuel cells
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Bouzek, Karel Holzhauser, Petr
issn	0021-891X
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	22310
is http://linked.open...avai/riv/vysledek of	Influence of counter-ions on the permeability of polypyrrole films to hydrogen Influence of counter-ions on the permeability of polypyrrole films to hydrogen

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