Sodium ion dynamics in a sulfonate based ionomer system studied by 23Na solid-state nuclear magnetic resonance and impedance spectroscopy Pope, Cameron R., Romanenko, Konstantin, MacFarlane, Douglas R., Forsyth, Maria and O'Dell, Luke 2015, Sodium ion dynamics in a sulfonate based ionomer system studied by 23Na solid-state nuclear magnetic resonance and impedance spectroscopy, Electrochimica acta, vol. 175, pp. 62-67, doi: 10.1016/j.electacta.2015.03.131. Attached Files Name Description MIMEType Size Downloads pope-sodiumiondynamics-accepted-2015.pdf Accepted version application/pdf 722.45KB 8 Title Sodium ion dynamics in a sulfonate based ionomer system studied by 23Na solid-state nuclear magnetic resonance and impedance spectroscopy Formatted title Sodium ion dynamics in a sulfonate based ionomer system studied by 23Na solid-state nuclear magnetic resonance and impedance spectroscopy Author(s) Pope, Cameron R. Romanenko, Konstantin MacFarlane, Douglas R. Forsyth, Maria orcid.org/0000-0002-4273-8105 O'Dell, Luke orcid.org/0000-0002-7760-5417 Journal name Electrochimica acta Volume number 175 Start page 62 End page 67 Total pages 6 Publisher Elsevier Place of publication Amsterdam, The Netherlands Publication date 2015-09-01 ISSN 0013-4686 Keyword(s) Electrolyte Ionic conductivity Ionomers Sodium Solid-state NMR Summary A poly(2-acrylamido-2-methyl-1-propane-sulphonate) (PAMPS) ionomer containing both sodium and quaternary ammonium cations functionalised with an ether group, has been characterised in terms of its thermal properties, ionic conductivity and sodium ion dynamics. The ether oxygen was incorporated to reduce the Na+ association with the anionic sulfonate groups tethered to the polymer backbone, thereby promoting ion dissociation and ultimately enhancing the ionic conductivity. This functionalised ammonium cation led to a significant reduction in the ionomer Tg compared to an analogue system without an ether group, resulting in an increase in ionic conductivity of approximately four orders of magnitude. The sodium ion dynamics were probed by 23Na solid-state NMR, which allowed the signals from the dissociated (mobile) and bound Na+ cations to be distinguished. This demonstrates the utility of 23Na solid-state NMR as a probe of sodium dynamics in ionomer systems. Language eng DOI 10.1016/j.electacta.2015.03.131 Indigenous content off Field of Research 030304 Physical Chemistry of Materials Socio Economic Objective 850602 Energy Storage (excl. Hydrogen) HERDC Research category C1 Refereed article in a scholarly journal ERA Research output type C Journal article Copyright notice ©2015, Elsevier Free to Read? Yes Free to Read Start Date 2017-10-01 Use Rights Persistent URL http://hdl.handle.net/10536/DRO/DU:30072595 Document type: Journal Article Collections: Institute for Frontier Materials Open Access Collection GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Wed, 22 Apr 2015, 12:24:07 EST Mon, 07 Sep 2015, 11:55:04 EST Tue, 08 Sep 2015, 05:00:31 EST Tue, 08 Sep 2015, 06:10:16 EST Wed, 14 Oct 2015, 14:22:56 EST Wed, 11 Nov 2015, 14:52:16 EST Wed, 11 Nov 2015, 15:00:38 EST Wed, 25 Nov 2015, 11:03:47 EST Fri, 20 Jan 2017, 14:44:15 EST Fri, 20 Jan 2017, 14:46:19 EST Fri, 21 Apr 2017, 07:08:10 EST Mon, 21 Jun 2021, 15:43:42 EST Mon, 21 Jun 2021, 15:47:59 EST Fri, 25 Jun 2021, 11:58:12 EST Filtered Full Citation counts:   Cited 11 times in TR Web of Science Cited 12 times in Scopus Search Google Scholar Access Statistics: 761 Abstract Views, 11 File Downloads  -  Detailed Statistics Created: Mon, 07 Sep 2015, 11:55:04 EST