TY - JOUR
T1 - Core Size-Dependent Proton Conductivity of Silica Filler-Functionalized Polymer Electrolyte Membrane
AU - Nohara, Tomohiro
AU - Koseki, Kazuki
AU - Tabata, Keisuke
AU - Shimada, Ryuichiro
AU - Suzuki, Yukina
AU - Umemoto, Kazuki
AU - Takeda, Masaki
AU - Sato, Ryota
AU - Rodbuntum, Sasiphapa
AU - Arita, Toshihiko
AU - Masuhara, Akito
N1 - Funding Information:
This work was supported by the cooperative research program of Network Joint Research Center for Materials and Devices: Alliance for Open Innovation Bridging Human, Environment and Materials, Grant-in-Aid for Scientific Research B (JP18H01717), Network Joint Research Center for Materials and Devices, Fuji Seal Foundation, and Suzuki Foundation.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/10/5
Y1 - 2020/10/5
N2 - Polymer electrolyte fuel cells (PEFC) are expected as next energy generation systems, and their performance is strongly dependent upon the polymer electrolyte membrane (PEM). We have suggested a new model of PEM with a three-dimensional proton conduction passways structure using the filler method, particularly focused on the functionalization of filler particles. The polymer surface-functionalized silica nanoparticles (NPs) with three different particle sizes were prepared by the reversible addition-fragmentation chain transfer polymerization with particles (RAFT PwP) method that we developed. Silica NPs coated with an in situ polymerized block copolymer consisted of a proton conductive polymer and a protective polymer. We confirmed that the proton conductivity increased and the activation energy decreased as the core particle size became smaller because of enlarging the total interface area between each particle and increasing the proton conduction passways.
AB - Polymer electrolyte fuel cells (PEFC) are expected as next energy generation systems, and their performance is strongly dependent upon the polymer electrolyte membrane (PEM). We have suggested a new model of PEM with a three-dimensional proton conduction passways structure using the filler method, particularly focused on the functionalization of filler particles. The polymer surface-functionalized silica nanoparticles (NPs) with three different particle sizes were prepared by the reversible addition-fragmentation chain transfer polymerization with particles (RAFT PwP) method that we developed. Silica NPs coated with an in situ polymerized block copolymer consisted of a proton conductive polymer and a protective polymer. We confirmed that the proton conductivity increased and the activation energy decreased as the core particle size became smaller because of enlarging the total interface area between each particle and increasing the proton conduction passways.
KW - Core-shell type hybridized nanoparticles
KW - Polymer coating method
KW - Polymer electrolyte fuel cell
KW - Proton conductive polymer
KW - RAFT polymerization
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U2 - 10.1021/acssuschemeng.0c04033
DO - 10.1021/acssuschemeng.0c04033
M3 - Article
AN - SCOPUS:85095114205
SN - 2168-0485
VL - 8
SP - 14674
EP - 14678
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 39
ER -
