caa a22 4500 467954194 CHVBK 20180405193745.0 cr unu---uuuuu 170328e20050101xx s 000 0 eng 10.1007/s11175-005-0046-7 doi (NATIONALLICENCE)springer-10.1007/s11175-005-0046-7 (NATIONALLICENCE)springer-10.1007/PL00022098 Cathode of a hydrogen-oxygen fuel cell with a solid polymer electrolyte: The effect of the flooding of pores by water on the characteristics of the active layer [Elektronische Daten] [Yu. Chirkov, V. Rostokin] A computer model of the active layer of the cathode of a hydrogen-oxygen fuel cell with a solid polymer electrolyte is studied. The active mass of the electrode consists of equidimensional grains of the substrate (agglomerates of carbon particles with platinum particles embedded in them) and a solid polymer electrolyte (Nafion). The flooding by water can be experienced by both the pores in the substrate grains, which facilitate the oxygen penetration into the active layer of the electrode, and the voids between the grains. All possible versions of the flooding of these pores by water are considered. A calculation of the optimum, at a given polarization of the electrode, value of electrochemical activity, the thickness of the active layer, and the weight of platinum is performed. The major parameters of the system are the concentrations of grains of the substrate and solid polymer electrolyte, the size of these grains, the platinum concentration in the substrate grains, the average diameter of pores in the substrate grains, and the polarization of electrodes. The ultimate aim of the work is to estimate how the flooding of pores of the active layer of the cathode by water affects the magnitude of the optimum current, the effective thickness of the active layer, and the weight of platinum. MAIK "Nauka/Interperiodica”, 2005 hydrogen-oxygen fuel cell with a solid polymer electrolyte nationallicence oxygen electrode nationallicence weight of platinum nationallicence computer-aided simulation of porous electrodes nationallicence Knudsen flow nationallicence Nafion nationallicence Chirkov Yu Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Rostokin V. Moscow Institute of Engineering Physics, Kashirskoe sh. 31, 117409, Moscow, Russia aut Russian Journal of Electrochemistry Nauka/Interperiodica 41/1(2005-01-01), 32-43 1023-1935 41:1<32 2005 41 11175 https://doi.org/10.1007/s11175-005-0046-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11175-005-0046-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chirkov Yu Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Rostokin V. Moscow Institute of Engineering Physics, Kashirskoe sh. 31, 117409, Moscow, Russia aut NATIONALLICENCE 773 0- Russian Journal of Electrochemistry Nauka/Interperiodica 41/1(2005-01-01), 32-43 1023-1935 41:1<32 2005 41 11175 NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00022098 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer