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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b02237
|2 doi
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|a pubmed24n0876.xml
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|a eng
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|a Harbottle, Allison M
|e verfasserin
|4 aut
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|a Lewis Acid Based Sorption of Trace Amounts of RuCl3 by Polyaniline
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 13.06.2018
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|a Date Revised 13.06.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A sorption process of RuCl3 in phosphate buffer by polyaniline (PANI) powder chemically synthesized from phosphoric acid was spectrophotometrically monitored as a function of time. It was determined that the sorption process follows the Langmuir and Freundlich isotherms, and their constants were evaluated. It was determined that chemisorption was the rate-controlling step. By conducting detailed studies, we assigned the chemisorption to Lewis acid based interactions of the sorbent electron pair localized at the benzenoid amine (-NH2) and quinoid imine (═NH) groups, with the sorbate, RuCl3, as the electron acceptor. The stability of the interaction over a period of ∼1 week showed that the presence of the Ru(III) in the PANI matrix reverses its state from emeraldine base to emeraldine salt, resulting in a change of conductivity. The partial electron donor based charge transfer is a slow process as compared to the sorption process involving Brønsted acid doping
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
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|a Hira, Steven M
|e verfasserin
|4 aut
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|a Josowicz, Mira
|e verfasserin
|4 aut
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| 700 |
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|a Janata, Jiří
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 33 vom: 23. Aug., Seite 8315-21
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:33
|g day:23
|g month:08
|g pages:8315-21
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|u http://dx.doi.org/10.1021/acs.langmuir.6b02237
|3 Volltext
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