In the paper Article Superprotonic Conductivity of a UiO-66 Framework Functionali...
, the authors mentioned that they used "a home made sample holder composed of Pt pressed electrodes". Anyone know what the Pt-pressed electrodes is?
Dear Dr. Li,
Here is a procedures for preparing pressed Pt electrode, from the paper:
Michelle P. Browne and Andrew Mills, Determining the importance of the electrode support and fabrication method during the initial screening process of an active catalyst for the oxygen evolution reaction, J. Mater. Chem. A, 2018, 6, 14162-14169,
DOI: 10.1039/C8TA02908C
Pressed discs electrodes. 300 mg of Pt powder was placed in an IR pellet press die (Specac) with a 4 mm internal diameter. The powder was gently pressed down using the stainless steel IR die drive rod, no hydraulic press was used at this time. Then, 0.15 mg of the RuO2 powder was added to the die. A composite disk was fabricated by applying 2 T of pressure for 10 s in a hydraulic press. The composite disc had a geometric area of 0.125 cm−2 and a catalyst loading of 1.2 mg cm−2. For electrochemical analysis, the pressed discs were tested using a RDE assembly which accepts 4 mm diameter electrode discs (ALS Co. Ltd).
Sincerelly
prof. Grgur
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