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Kinetics of Ion Exchange / Tetraamineplatinum(II) in ZSM-5 Zeolites

Title data

Dubbe, Andreas ; Hagen, Gunter ; Moos, Ralf:
Kinetics of Ion Exchange / Tetraamineplatinum(II) in ZSM-5 Zeolites.
Event: 16. Deutsche Zeolith-Tagung , 03.-05. März 2004 , Dresden, Deutschland.
(Conference item: Conference , Speech )

Abstract in another language

Very selective hydrocarbon-gas sensors are based on measuring the complex impedance of zeolite functional films. For this purpose, we prepared Pt-loaded ZSM-5 zeolites via ion exchange with [Pt(NH3)4]2+ and subsequent calcination and reduction to metallic Pt particles in the pore system. Many studies on optimisation of preparation conditions were focused on calcination and reduction steps. The aim of the present investigation is to provide data for the kinetics of replacement of Na+ ions with [Pt(NH3)4]2+ in ZSM-5 as a basis for reliable and tailored recipes for the ion exchange. The experimental method consists of adding the zeolite to a surplus of [Pt(NH3)4]Cl2 solution and measuring the decay of the [Pt(NH3)4]2+ concentration until steady-state by UV photometry. Ion-exchange isotherms were obtained by exchange or back-exchange with addition of various amounts of NaCl.

Further data

Item Type: Conference item (Speech)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 29 Jun 2015 11:59
Last Modified: 05 Apr 2016 06:51