Electrocatalytic layers modified by reduced graphene oxide for PEM fuel cells

Enhancement of high temperature PEMFC stability using catalysts based on Pt supported on SiC based materials

“…Pt/SiCTiC catalyst, PBI ionomer (1.5 wt.% PBI in N,N-dimethylacetamide, DMAc, 1-20 PBI/support ratio), and DMAc as a dispersing solvent. This Pt amount on the catalyst powder was fixed according to the optimization results of the catalyst layer for HT-PEMFCs achieved in previous results performed by our research group [17] and it is in agreement with the ratios used in other works shown in the literature [18]. For the anode, the commercial catalyst, Pt/C, was used.…”

New physical technologies for catalyst synthesis and anticorrosion protection

“…However, the activity of such electrode is not enough to use them as electrodes in PEM electrolyzers. Even when Pt films with roughness factor up to 30 sputtered on porous Ti support were used as cathodes or anodes of PEM electrolyzer the current density reached only 0.3 А/сm2 at 1.62 V (85 C) what is about 1.6 times less in comparison with current density for Pt black applied by more traditional technology [21,22]. When Nafion solution was preliminary applied on such electrode (current collector) to increase contact surface between the electrode and the membrane the current density increased but only for 10e20%.…”

High‐Stability Electrodes for High‐Temperature Proton Exchange Membrane Fuel Cells by Using Advanced Nanocarbonaceous Materials

“…Pt/CNFp, PBI ionomer (1.5 wt.% PBI in N, N‐dimethylacetamide, DMAc, 1–20 PBI/support ratio), and DMAc as a dispersing solvent. The Pt amount of the catalyst powder was fixed according to the results of previous studies carried out by our research group and it is in agreement with the ratios used in other works shown in the literature . For the anode, the commercial catalyst, Pt/Vulcan, was used in both cases.…”