Pt/C and Pt/SnOx/C Catalysts for Ethanol Electrooxidation: Rotating Disk Electrode Study

Catalysts

卷:9

Dmitri Bessarabov¹  StephanusP. du Preez¹  AnatolyA. Evdokimov²  VladimirN. Fateev³  NataliaA. Ivanova³  RatiborG. Chumakov³  VladimirG. Stankevich³  IrinaV. Pushkareva⁴  SergeyA. Grigoriev⁴  ArtemS. Pushkarev⁴ 

[1] DST HySA Infrastructure Centre of Competence, North-West University, Potchefstroom 2520, South Africa;

[2] MIREA—Russian Technological University (RTU MIREA), 78, Vernadskiy Ave., Moscow 119454, Russia;

[3] National Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., Moscow 123182, Russia;

[4] National Research University “Moscow Power Engineering Institute”, 14, Krasnokazarmennaya st., Moscow 111250, Russia;

关键词: ethanol electrooxidation;    rotating disk electrode;    Tin;    Tin oxide;    direct ethanol fuel cell;   

DOI  :  10.3390/catal9030271

来源: DOAJ

【 摘 要 】

Pt/C and Pt/SnOx/C catalysts were synthesized using the polyol method. Their structure, morphology and chemical composition were studied using a scanning electron microscope equipped with an energy dispersive X-ray spectrometer, transition electron microscope and X-ray photoelectron spectroscope. Electrochemical measurements were based on the results of rotating disk electrode (RDE) experiments applied to ethanol electrooxidation. The quick evaluation of catalyst activity, electrochemical behavior, and an average number of transferred electrons were made using the RDE technique. The usage of SnOx (through the carbon support modification) in a binary system together with Pt causes a significant increase of the catalyst activity in ethanol oxidation reaction and the utilization of ethanol.

【 授权许可】

Unknown