Micro Galvanic Cell To Generate PtO and Extend the Triple-Phase Boundary during Self-Assembly of Pt/C and Nafion for Catalyst Layers of PEMFC

2017 ◽  
Vol 9 (44) ◽  
pp. 38165-38169 ◽  
Author(s):  
Zhi Long ◽  
Liqin Gao ◽  
Yankai Li ◽  
Baotao Kang ◽  
Jin Yong Lee ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Self Assembly ◽  
Galvanic Cell ◽  
Triple Phase Boundary ◽  
Catalyst Layers

scholarly journals Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15635-15641 ◽  
Author(s):  
Dung Van Dao ◽  
Ganpurev Adilbish ◽  
Thanh Duc Le ◽  
In-Hwan Lee ◽  
Yeon-Tae Yu
Keyword(s):  
Phase Boundary ◽  
Power Density ◽  
Triple Phase Boundary ◽  
Catalyst Layers ◽  
Density Enhancement ◽  
First Time

Pt/C double catalyst layers (DCL), serving as an anodic electrode, have been utilized in a PEMFC application for the first time.

Measurement and finite element modeling of triple phase boundary-related current constriction in YSZ

2007 ◽  
Vol 178 (13-14) ◽  
pp. 915-923 ◽  
Author(s):  
Joshua L. Hertz ◽  
Harry L. Tuller
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Phase Boundary ◽  
Triple Phase Boundary ◽  
Element Modeling

Revisiting the Role of the Triple‐Phase Boundary in Promoting the Oxygen Reduction Reaction in Aluminum–Air Batteries

2021 ◽  
pp. 2101720
Author(s):  
Sangjin Choi ◽  
Hyung Wan Do ◽  
Dana Jin ◽  
Sungsoon Kim ◽  
Jeongyoub Lee ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Phase Boundary ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Triple Phase Boundary

EIS Analysis of the Triple Phase Boundary Model

2019 ◽  
Vol 19 (32) ◽  
pp. 23-31
Author(s):  
Abhishek Dhanda ◽  
Ryan O'Hayre ◽  
Heinz Pitsch
Keyword(s):  
Phase Boundary ◽  
Triple Phase Boundary ◽  
Boundary Model ◽  
Eis Analysis

scholarly journals Quantifying Percolated Triple Phase Boundary Density and Its Effects on Anodic Polarization in Ni-Infiltrated Ni/YSZ SOFC Anodes

2021 ◽  
Author(s):  
Jillian Grace Rix ◽  
Boshan Mo ◽  
Alexey Y Nikiforov ◽  
Uday B Pal ◽  
Srikanth Gopalan ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Anodic Polarization ◽  
Triple Phase Boundary ◽  
Boundary Density

Morphologically well-defined Gd0.1Ce0.9O1.95 embedded Ba0.5Sr0.5Co0.8Fe0.2O3-δ nanofiber with an enhanced triple phase boundary as cathode for low-temperature solid oxide fuel cells

2018 ◽  
Vol 378 ◽  
pp. 404-411 ◽  
Author(s):  
Chanho Kim ◽  
Hyunjung Park ◽  
Inyoung Jang ◽  
Sungmin Kim ◽  
Kijung Kim ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Phase Boundary ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Triple Phase Boundary

Electrochemical Properties of Nanocrystalline Y2-xPrxRu2O7 Pyrochlore for Electrodic Application in IT-SOFCS

2006 ◽  
Vol 972 ◽  
Author(s):  
Chiara Abate ◽  
Keith Duncan ◽  
Enrico Traversa ◽  
Eric Wachsman
Keyword(s):  
Cathode Material ◽  
Phase Boundary ◽  
Electrochemical Impedance ◽  
Charge Transfer Resistance ◽  
Nanocrystalline Powders ◽  
Precipitation Method ◽  
Electrode Polarization ◽  
Transfer Resistance ◽  
Triple Phase Boundary ◽  
Co Precipitation

AbstractNanocrystalline powders of Y2-xPrxRu2O7 were prepared by a co-precipitation method, and were tested as electrode on ESB and GDC electrolytes by electrochemical impedance spectroscopy in the 300-750°C temperatures range. The electrode polarization was studied as a function of the amount of praseodymium in the cathode material. Both systems, Y2-xPrxRu2O7/ESB and Y2-xPrxRu2O7/GDC, showed a similar variation of the electrode area specific resistance (ASR). Y1.5Pr0.5Ru2O7 cathode material presented the best performance, with ASR value of 0.19 Ωcm2 on ESB and 4.23 Ωcm2 on GDC at 700°C. Furthermore, the change in ASR with the oxygen partial pressure suggested that the rate limiting step is the surface diffusion of the adsorbed oxygen at the electrode surface to the triple-phase boundary. Thus, the low value of resistivity of the Y1.5Pr0.5Ru2O7 in contact with ESB results from a much lower charge transfer resistance compared to the Y2-xPrxRu2O7/GDC system, and a partial solid diffusion at the interface electrode/electrolyte that increases the effective triple phase boundary length. This suggests that Y2-xPrxRu2O7 is a promising material for cathode application in ESB-based electrolyte for intermediate temperature solid oxide fuel cells (IT-SOFCs).

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