TY - GEN
T1 - Preparation of Nanocrystalline Nb-Doped SnO2on Mesoporous Carbon for PEFC Electrocatalysts
AU - Inoue, Yusuke
AU - Yasutake, Masahiro
AU - Noda, Zhiyun
AU - Lyth, Stephen Matthew
AU - Nishihara, Masamichi
AU - Hayashi, Akari
AU - Matsuda, Junko
AU - Sasaki, Kazunari
N1 - Funding Information:
Financial support from New Energy and Industrial Technology Development Organization (NEDO) is gratefully acknowledged (Contract No. 20001214-0).
Publisher Copyright:
© 2022 ECS - The Electrochemical Society.
PY - 2022
Y1 - 2022
N2 - Platinum-based nanoparticles decorated on carbon supports (Pt/C) are widely used as electrocatalysts in polymer electrolyte fuel cells (PEFCs). Meanwhile, SnO2 is more stable than carbon at high potentials in cathodic environments. Highly durable Pt/SnO2/C electrocatalysts have therefore previously been developed using carbon nanomaterials as an electron-conducting backbone and SnO2 as a stable support layer for highly dispersed platinum nanoparticles. Here, we report on the development of Pt/SnO2/C electrocatalysts based on mesoporous carbon (MC) scaffolds. The electron conduction pathway through SnO2 was minimized by reducing the SnO2 loading. The use of Pt/SnO2/MC electrocatalysts resulted in high activity towards the oxygen reduction reaction (ORR) as well as excellent start-stop voltage cycling durability in half-cell conditions.
AB - Platinum-based nanoparticles decorated on carbon supports (Pt/C) are widely used as electrocatalysts in polymer electrolyte fuel cells (PEFCs). Meanwhile, SnO2 is more stable than carbon at high potentials in cathodic environments. Highly durable Pt/SnO2/C electrocatalysts have therefore previously been developed using carbon nanomaterials as an electron-conducting backbone and SnO2 as a stable support layer for highly dispersed platinum nanoparticles. Here, we report on the development of Pt/SnO2/C electrocatalysts based on mesoporous carbon (MC) scaffolds. The electron conduction pathway through SnO2 was minimized by reducing the SnO2 loading. The use of Pt/SnO2/MC electrocatalysts resulted in high activity towards the oxygen reduction reaction (ORR) as well as excellent start-stop voltage cycling durability in half-cell conditions.
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U2 - 10.1149/10909.0413ecst
DO - 10.1149/10909.0413ecst
M3 - Conference contribution
AN - SCOPUS:85140225617
T3 - ECS Transactions
SP - 413
EP - 423
BT - ECS Transactions
PB - Institute of Physics
T2 - 242nd ECS Meeting
Y2 - 9 October 2022 through 13 October 2022
ER -