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101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aStudy of electrooxidation of binary electrolytic deposit palladium–bismuth deposited on graphite electrode surface
_fZh. K. Sabitova, Yu. A. Oskina, N. A. Kolpakova
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 31 tit.]
330 _aThe phase structure of palladium–bismuth binary electrolytic deposit was studied. The electrodeposition of deposit components on the surface of a graphite electrode (GE) was carried out in situ. On current–voltage curves, the peak of bismuth electrooxidation, the peak of palladium electrooxidation and an additional peak at 0.15 V vs. Ag/AgCl are observed. The peak current at 0.15 V depends both on the concentration of palladium(II) ions and on that of bismuth(III) ions. The thermodynamic theory of alloys in the approximation of the theory of regular solutions was used for calculations. The mixing heat of the binary alloy components and the equilibrium potential of bismuth in the bismuth–palladium alloy are calculated. The calculated equilibrium potential of bismuth in an alloy with palladium is 0.12 V vs. Ag/AgCl which corresponds to the Bi2Pd intermetallic compound (IMC). Investigation of the surface of a GE with a palladium–bismuth deposit with use of scanning electron microscope showed that the electrolytic deposit contains bismuth, palladium and the Bi2Pd IMC. Peak at the potential of plus 0.15 V vs. Ag/AgCl is due to selective bismuth electrooxidation from the Bi2Pd IMC.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Solid State Electrochemistry
_oScientific Journal
463 _tVol. 22, iss. 12
_v[7 p.]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aмодифицированные электроды
610 1 _aместорождения
610 1 _aсмешивание
610 1 _aкомпоненты
610 1 _aвольтамперометрия
700 1 _aSabitova
_bZh. K.
_gZhamilya Korganbekovna
701 1 _aOskina
_bYu. A.
_cChemical Engineer
_cEngineer-researcher of Tomsk Polytechnic University
_f1990-
_gYuliya Aleksandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33252
701 1 _aKolpakova
_bN. A.
_cMaiden Name Polukarova
_crussian chemist
_f1942-
_gNina Alexandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\28201
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа природных ресурсов
_bОтделение химической инженерии
_h8085
_2stltpush
_3(RuTPU)RU\TPU\col\23513
801 2 _aRU
_b63413507
_c20181106
_gRCR
856 4 0 _uhttps://doi.org/10.1007/s10008-018-4084-y
942 _cCF