Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron

Latyshev, Vitalii; You, Hoydoo; Kovalcikova, Alexandra; Komanicky, Vladimir

doi:10.1016/j.electacta.2019.135178

Title: Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron

Full Record
Other Related Research

Abstract

The methanol electrooxidation catalysts in the form of Rh and FeRh thin films were prepared by magnetron sputtering deposition. To activate the FeRh catalyst, the as-prepared FeRh films were cycled in 0.1 M HClO₄ electrolyte in potential window from -0.25 V to 0.8 V (vs. Ag/AgCl). The dissolution of Fe atoms during the cycling leads to the formation of Rh-skeleton surface. Obtained FeRh catalysts exhibit significantly enhanced activity to methanol electrooxidation in both acidic and alkaline environments comparing to pure Rh catalyst. The optimal concentration of Fe is found to be 50%. Electrochemical impedance spectroscopy investigations show the higher rate of methanol dehydrogenation as well as better tolerance to CO intermediates poisoning of the FeRh catalysts. Furthermore, this study demonstrates that Rh-based catalysts can be considered as alternative to Pt-based catalysts.

Authors:

Latyshev, Vitalii ^[1]; You, Hoydoo ^[2]; Kovalcikova, Alexandra ^[3]; Komanicky, Vladimir ^[1]

P. J. Safarik Univ., Kosice (Slovak Republic)
Argonne National Lab. (ANL), Lemont, IL (United States)
Slovak Academy of Sciences, Kosice (Slovak Republic)

Publication Date:: 2019-11-01

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1577113

Alternate Identifier(s):: OSTI ID: 1573839

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Electrochimica Acta

Additional Journal Information:: Journal Volume: 330; Journal Issue: C; Journal ID: ISSN 0013-4686

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Fe-Rh Catalyst; Methanol oxidation reaction; Rhodium

Citation Formats


                    Latyshev, Vitalii, You, Hoydoo, Kovalcikova, Alexandra, and Komanicky, Vladimir. Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron.  United States: N. p., 2019. 
Web.  https://doi.org/10.1016/j.electacta.2019.135178.

Copy to clipboard


                    Latyshev, Vitalii, You, Hoydoo, Kovalcikova, Alexandra, & Komanicky, Vladimir. Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron.  United States.  https://doi.org/10.1016/j.electacta.2019.135178

Copy to clipboard


                    Latyshev, Vitalii, You, Hoydoo, Kovalcikova, Alexandra, and Komanicky, Vladimir. Fri .  
"Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron".  United States.  https://doi.org/10.1016/j.electacta.2019.135178.  https://www.osti.gov/servlets/purl/1577113.

Copy to clipboard


                    
@article{osti_1577113,

  title        = {Enhancing catalytic activity of rhodium towards methanol electro-oxidation in both acidic and alkaline media by alloying with iron},

  author       = {Latyshev, Vitalii and You, Hoydoo and Kovalcikova, Alexandra and Komanicky, Vladimir},

  abstractNote = {The methanol electrooxidation catalysts in the form of Rh and FeRh thin films were prepared by magnetron sputtering deposition. To activate the FeRh catalyst, the as-prepared FeRh films were cycled in 0.1 M HClO4 electrolyte in potential window from -0.25 V to 0.8 V (vs. Ag/AgCl). The dissolution of Fe atoms during the cycling leads to the formation of Rh-skeleton surface. Obtained FeRh catalysts exhibit significantly enhanced activity to methanol electrooxidation in both acidic and alkaline environments comparing to pure Rh catalyst. The optimal concentration of Fe is found to be 50%. Electrochemical impedance spectroscopy investigations show the higher rate of methanol dehydrogenation as well as better tolerance to CO intermediates poisoning of the FeRh catalysts. Furthermore, this study demonstrates that Rh-based catalysts can be considered as alternative to Pt-based catalysts.},

  doi          = {10.1016/j.electacta.2019.135178},

  journal      = {Electrochimica Acta},

  number       = C,

  volume       = 330,

  place        = {United States},

  year         = {2019},

  month        = {11}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.electacta.2019.135178

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Tungsten carbide/porous carbon composite as superior support for platinum catalyst toward methanol electro-oxidation

Journal Article Jiang, Liming ; Fu, Honggang ; Key Laboratory of Functional Inorganic Material Chemistry, Heilongjiang University, Harbin 150080 ; ... - Materials Research Bulletin

Graphical abstract: The WC nanoparticles are well dispersed in the carbon matrix. The size of WC nanoparticles is about 30 nm. It can be concluded that tungsten carbide and carbon composite was successfully prepared by the present synthesis conditions. - Highlights: • The WC/PC composite with high specific surface area was prepared by a simple way. • The Pt/WC/PC catalyst has superior performance toward methanol electro-oxidation. • The current density for methanol electro-oxidation is as high as 595.93 A g{sup −1} Pt. • The Pt/WC/PC catalyst shows better durability and stronger CO electro-oxidation. • The performance of Pt/WC/PC is superiormore »« less
https://doi.org/10.1016/J.MATERRESBULL.2013.09.034
Adsorption and electrooxidation of some simple organic molecules on rhodium(111) as probed by real-time FTIR spectroscopy: Comparisons with platinum(111)

Journal Article Leung, Lam-Wing H ; Weaver, M J - Journal of Physical Chemistry; (USA)

The electrooxidation pathways of seven simple organic molecules in 0.1 M HClO{sub 4} on ordered Rh(111) were examined by means of real-time sequences of FTIR spectra obtained during slow (2 mV s{sup {minus}1}) voltammetric sweeps. The reactants studied are formic acid, methanol, ethanol, acetaldehyde, ethylene glycol, glyoxal, and oxalic acid for concentrations between 0.05 and 0.5 M. High coverages ({theta} {ge} 0.4) of adsorbed CO are formed in most cases, as detected from a band at about 1880-1890 cm{sup {minus}1} at the most negative potentials ({minus}0.25 to +0.05 V vs SCE), which is replaced by a band at 2030-2040 cm{supmore »« less
https://doi.org/10.1021/j100357a038
Anodic oxidation of methanol on Pt/WO[sub 3] in acidic media

Journal Article Shen, P K ; Tseung, A C.C. - Journal of the Electrochemical Society; (United States)

The details of the preparation and characterization of co-deposited Pt/WO[sub 3] electrodes are presented. X-ray, scanning, and transmission electron microscopic studies revealed that WO[sub 3] is amorphous and that [approximately]40 [angstrom] Pt crystallites are uniformly dispersed in the deposit. The influence of the deposition conditions and the effect of the solution acidity on the activity of such electrodes for methanol oxidation have been studied. The results demonstrated that the Pt/WO[sub 3] electrodes are much more active and more resistant to poisoning than Pt or Pt/Ru alloy catalysts. The reaction mechanism was studied by various electrochemical and surface analysis techniques. Amore »« less
https://doi.org/10.1149/1.2059282
Adsorption of silver on electrolytic rhodium deposits

Journal Article Kolyadko, E A ; Podlovchenko, B I - Sov. Electrochem. (Engl. Transl.); (United States)

The behavior of adatoms on electrodes made from platinum metals has been the subject of a considerable number of studies, though only a few were carried out on a rhodium electrode. The adsorption of silver on electrolytic deposits of Pd and Pt was previously studied, in which the influence of Ag adatoms on the electrooxidation of HCOOH and CH/sub 3/OH was also studied. The authors of this paper saw it as of interest to carry out a similar investigation on electrolytic deposits of Rh. Deposits of Rh applied to a Pt plate under potentiostatic conditions at E /SUB r/ =more »« less
Methanol electrooxidation on well-characterized Pt-Ru alloys

Journal Article Gasteiger, H A ; Markovic, N ; Ross, Jr, P N ; ... - Journal of Physical Chemistry; (United States)

The catalytic activity of single-phase polycrystalline Pt-Ru bulk alloys toward the electrooxidation of methanol in sulfuric acid electrolyte at room temperature was measured for the first time on well-characterized alloy surfaces, in terms of surface composition and true surface area. Sputter-cleaned and annealed alloys were prepared in ultrahigh vacuum (UHV) and the surface composition of oxygen-free surfaces was assessed via low-energy ion scattering (LEIS). Pt-Ru alloy surfaces annealed in UHV were strongly enriched in Pt, whereas the surface composition of sputter-cleaned alloys was essentially identical to their bulk composition. It was shown that the sputter-cleaned alloy with a Ru surfacemore »« less
https://doi.org/10.1021/j100148a030

Similar Records