Preparation of PEFC Electrocatalysts Using SnO2Thin Layer Support

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Pt/C is widely used as a PEFC electrocatalyst. However, Pt detachment and aggregation due to carbon support corrosion can occur. Therefore, the conventional Pt/C electrocatalyst has a difficulty in durability. We have developed Pt-based electrocatalysts dispersed on graphitized carbon black (GCB) coated with SnO2 thin layer support, achieving both high activity and high durability. Here in this study, Pt-Co alloy based electrocatalysts,Pt3Co/Sn0.98Nb0.02O2/GCB, are prepared. XRD measurement confirmed that the catalyst was supported on the oxide. STEM analysis confirmed the alloying of Pt with Co. The catalytic activity was characterized by half-cell electrochemical measurements. The electrochemical activity and pore structure were examined by preparing membrane electrode assemblies (MEA) usingPt3Co/Sn0.98Nb0.02O2/GCB as the cathode catalyst.

Original languageEnglish
Title of host publication240th ECS Meeting - Polymer Electrolyte Fuel Cells and Electrolyzers 21 (PEFC and E 21)
PublisherIOP Publishing Ltd.
Number of pages11
ISBN (Electronic)9781607685395
Publication statusPublished - 2021
Event240th ECS Meeting - Orlando, United States
Duration: Oct 10 2021Oct 14 2021

Publication series

NameECS Transactions
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862


Conference240th ECS Meeting
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • General Engineering


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