Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 11, Pages 6036-6040Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b00134
Keywords
nanoporous Pt electrode agglomeration; yttria-stabilized zirconia (YSZ); fuel cell; layer delamination; triple phase boundary (TPB)
Funding
- MOE from Singapore Ministry of Education, Singapore [RG 92/13]
- National Research Foundation of Korea, Republic of Korea [NRF-2011-0031569, NRF-2012R1A1A1006072]
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Nanoporous platinum electrode thin films were delaminated from yttria-stabilized zirconia (YSZ) Substrates via double cantilever beam delamination to reveal the :structure located at the interface between electrode and electrolyte, The thermally driven morphological evolution between the electrode top surface and the substrate contact interface of agglomerated nanoporous platinum thin films were compared. We found the temperature required for significant agglomeration to occur was approximately 100 degrees C higher at the electrolyte contact interface side than at the top Surface side. judging the reaction Active site from the electrode top surface could be inaccurate because higher resistance of thermal agglomeration at the interface could retain the reaction active site during fuel cell operation,
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