Synthesis of molybdenum carbide catalyst by DC arc plasma in ambient air for hydrogen evolution; Materials Chemistry and Physics; Vol. 254

Synthesis of molybdenum carbide catalyst by DC arc plasma in ambient air for hydrogen evolution; Materials Chemistry and Physics; Vol. 254

Dettagli Bibliografici
Parent link:	Materials Chemistry and Physics Vol. 254.— 2020.— [123509, 9 p.]
Ente Autore:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-исследовательский центр "Экоэнергетика 4.0"
Altri autori:	Vasiljeva (Vassilyeva) Yu. Z. Yuliya Zakharovna, Butenko D. A. Denis Alekseevich, Li Shilin, Han Wei, Pak A. Ya. Aleksandr Yakovlevich
Riassunto:	Title screen Electrochemical water splitting is attractive for hydrogen production, however, high cost of noble metal catalysts, such as platinum, restrict its use. Herein, molybdenum carbide nanoparticles encapsulated within carbon matrices as a high-performance and low-cost electrocatalyst for hydrogen evolution reaction (HER) were prepared by DC arc discharge plasma under ambient air conditions. According to XRD patterns the synthesized product includes molybdenum carbides (Я-Mo2C and Mo1.2C0.8), molybdenum and graphite crystalline phases. The resulting material shows highly active catalytic properties with very small onset potential of -63 mV, a low overpotential of -226 mV at current density of 10 mA cm-2 and Tafel slope of 66.1 mV.dec-1 in 1.0 M KOH. The long-term HER stability test for 50 h under constant current density of 10 mA cm-2 confirmed the stability of the catalytic properties of the synthesized product. Therefore, such a method for producing Mo-based material for HER electrocatalysts is promising and can have practical application. Режим доступа: по договору с организацией-держателем ресурса
Lingua:	inglese
Pubblicazione:	2020
Soggetti:	электронный ресурс труды учёных ТПУ molybdenum carbide DC arc discharge ambient air conditions HER electrocatalysis карбид молибдена дуговые разряды постоянный ток электрокатализ
Accesso online:	https://doi.org/10.1016/j.matchemphys.2020.123509
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663179

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