University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Preparation of radiation-grafted powders for use as anion exchange ionomers in alkaline polymer electrolyte fuel cells

Poynton, S, Slade, Robert, Omasta, T, Mustain, W, Escudero-Cid, R, Ocon, P and Varcoe, John (2014) Preparation of radiation-grafted powders for use as anion exchange ionomers in alkaline polymer electrolyte fuel cells JOURNAL OF MATERIALS CHEMISTRY A, 2 (14). pp. 5124-5130.

This is the latest version of this item.

[img] Text
J Mater Chem A vol2 p5124 (2014).pdf
Available under License : See the attached licence file.

Download (790kB)
[img] Text (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB)

Abstract

A novel alkaline exchange ionomer (AEI) was prepared from the radiation-grafting of vinylbenzyl chloride (VBC) onto poly(ethylene-co-tetrafluoroethylene) [ETFE] powders with powder particle sizes of less than 100 μm diameter. Quaternisation of the VBC grafted ETFE powders with trimethylamine resulted in AEIs that were chemically the same as the ETFE-based radiation-grafted alkaline anion exchange membranes (AAEM) that had been previously developed for use in low temperature alkaline polymer electrolyte fuel cells (APEFC). The integration of the AEI powders into the catalyst layers (CL) of both electrodes resulted in a H2/O2 fuel cell peak power density of 240 mW cm−2 at 50 °C (compared to 180 mW cm−2 with a benchmark membrane electrode assembly containing identical components apart from the use of a previous generation AEI). This result is promising considering the wholly un-optimised nature of the AEI inclusion into the catalyst layers.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Poynton, S
Slade, RobertR.Slade@surrey.ac.uk
Omasta, T
Mustain, W
Escudero-Cid, R
Ocon, P
Varcoe, JohnJ.Varcoe@surrey.ac.uk
Date : 1 January 2014
Identification Number : 10.1039/c4ta00558a
Copyright Disclaimer : Copyright 2014 Royal Society of Chemistry
Uncontrolled Keywords : Science & Technology, Physical Sciences, Technology, Chemistry, Physical, Energy & Fuels, Materials Science, Multidisciplinary, Chemistry, Materials Science, WEIGHT POLYETHYLENE POWDER, METAL-CATALYSTS, CARBON-DIOXIDE, HEAD-GROUPS, MEMBRANES, PERFORMANCE, ETFE, METHANOL, FABRICATION, STYRENE
Related URLs :
Additional Information : This article is licensed under a Creative Commons 3.0 Attribution License.
Depositing User : Symplectic Elements
Date Deposited : 13 Feb 2015 09:30
Last Modified : 19 Jun 2018 06:05
URI: http://epubs.surrey.ac.uk/id/eprint/805593

Available Versions of this Item

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800