Article ID Journal Published Year Pages File Type
7214354 Composites Science and Technology 2018 21 Pages PDF
Abstract
Proton exchange membranes (PEMs) are the key parts in proton exchange membrane fuel cells (PEMFCs). In this work, a proton-conducting composite membrane rGO-P2W16V2@SPEEK was synthesized from vanadium-substituted Dawson-type heteropoly acid (H8P2W16V2O62
- 20H2O, abbreviated as P2W16V2), sulfonated polyether ether ketone (SPEEK) and reduced graphene oxide (rGO). Characterizations proved the integrity of the Dawson-structure heteropoly acids (HPAs) in composites and the uniform inorganic-organic hybrid distribution. The membrane shows excellent proton conductivity of 7.90 × 10−2 S cm−1 at 50 °C and the proton conduction was proved to comply with the Grotthuss mechanism. Up to now, this is the first time that a Dawson-type HPA was reported for the application of PEMs and this work extended the application of polyoxometalate-based materials in the field of fuel cells.
Related Topics
Physical Sciences and Engineering Engineering Engineering (General)
Authors
, , , ,