High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid
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2007
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Surface processes on Pt4Mo alloy well-defined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were studied in acid solution by cyclic voltammetry. It was established that Mo in the alloy is much more resistant toward electrochemical dissolution than pure Mo. During the potential cycling of Pt4Mo surfaces in completely quiescent electrolyte, hydrous Mo-oxide could be generated on Mo sites. Investigation of the formic acid oxidation revealed that this type of Mo-oxide enhances the reaction rate by more than I order of magnitude with respect to pure Pt. Surface poisoning by COads is significantly lower on Pt4Mo alloy than on pure Pt. The effect of hydrous Mo-oxide on the HCOOH oxidation rate was explained through the facilitated removal of the poisoning species and through its possible influence on the intrinsic rate of the direct reaction path.
Izvor:
Langmuir, 2007, 23, 25, 12760-12764Izdavač:
- Amer Chemical Soc, Washington
Finansiranje / projekti:
- Novi materijali za primenu u gorivim spregovima sa polimernom membranom (RS-MESTD-MPN2006-2010-142056)
DOI: 10.1021/la702344s
ISSN: 0743-7463
PubMed: 17988163
WoS: 000251244800041
Scopus: 2-s2.0-37249013531
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Gojković, Snežana Lj. AU - Tripković, Amalija AU - Stevanović, Rade M. AU - Krstajić, Nedeljko V. PY - 2007 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1153 AB - Surface processes on Pt4Mo alloy well-defined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were studied in acid solution by cyclic voltammetry. It was established that Mo in the alloy is much more resistant toward electrochemical dissolution than pure Mo. During the potential cycling of Pt4Mo surfaces in completely quiescent electrolyte, hydrous Mo-oxide could be generated on Mo sites. Investigation of the formic acid oxidation revealed that this type of Mo-oxide enhances the reaction rate by more than I order of magnitude with respect to pure Pt. Surface poisoning by COads is significantly lower on Pt4Mo alloy than on pure Pt. The effect of hydrous Mo-oxide on the HCOOH oxidation rate was explained through the facilitated removal of the poisoning species and through its possible influence on the intrinsic rate of the direct reaction path. PB - Amer Chemical Soc, Washington T2 - Langmuir T1 - High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid EP - 12764 IS - 25 SP - 12760 VL - 23 DO - 10.1021/la702344s ER -
@article{ author = "Gojković, Snežana Lj. and Tripković, Amalija and Stevanović, Rade M. and Krstajić, Nedeljko V.", year = "2007", abstract = "Surface processes on Pt4Mo alloy well-defined by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were studied in acid solution by cyclic voltammetry. It was established that Mo in the alloy is much more resistant toward electrochemical dissolution than pure Mo. During the potential cycling of Pt4Mo surfaces in completely quiescent electrolyte, hydrous Mo-oxide could be generated on Mo sites. Investigation of the formic acid oxidation revealed that this type of Mo-oxide enhances the reaction rate by more than I order of magnitude with respect to pure Pt. Surface poisoning by COads is significantly lower on Pt4Mo alloy than on pure Pt. The effect of hydrous Mo-oxide on the HCOOH oxidation rate was explained through the facilitated removal of the poisoning species and through its possible influence on the intrinsic rate of the direct reaction path.", publisher = "Amer Chemical Soc, Washington", journal = "Langmuir", title = "High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid", pages = "12764-12760", number = "25", volume = "23", doi = "10.1021/la702344s" }
Gojković, S. Lj., Tripković, A., Stevanović, R. M.,& Krstajić, N. V.. (2007). High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid. in Langmuir Amer Chemical Soc, Washington., 23(25), 12760-12764. https://doi.org/10.1021/la702344s
Gojković SL, Tripković A, Stevanović RM, Krstajić NV. High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid. in Langmuir. 2007;23(25):12760-12764. doi:10.1021/la702344s .
Gojković, Snežana Lj., Tripković, Amalija, Stevanović, Rade M., Krstajić, Nedeljko V., "High activity of Pt4Mo alloy for the electrochemical oxidation of formic acid" in Langmuir, 23, no. 25 (2007):12760-12764, https://doi.org/10.1021/la702344s . .