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The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell

Authorized Users Only
2019
Authors
Spasojević, Miroslav
Ribić Zelenović, Lenka
Spasojević, Milica
Trišović, Tomislav
Article (Published version)
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Abstract
An active coating, composed of a mixture of nanocrystals of RuO2 with the rutile structure and nanocrystals of metal Pt, was thermally synthetized on a titanium substrate. Cyclic voltammograms and polarization curves showed that the catalytic activity of the coating for the formic acid oxidation in an acidic solution increased with an increase in the RuO2 content, reaching the maximum value at 50 mol % RuO2. Additionally, further increase in the RuO2 content resulted in a decline of the catalytic activity. The catalytic effect was attributed to a bifunctional mechanism and an electronic effect. The bifunctional mechanism had a dominant role and was based on the fact that Ru–OH species were formed on Ru atoms of RuO2 at more negative potentials than on Pt. Those species oxidized the adsorbed COad and HCOOad—species on adjacent Pt atoms of clusters of metal Pt and thus discharge them to oxidize new HCOOH molecules.
Keywords:
formic acid fuel cells / RuO2 / catalysts
Source:
Russian Journal of Electrochemistry, 2019, 55, 12, 1350-1359
Publisher:
  • Springer
Funding / projects:
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)
Note:
  • Peer-reviewed manuscript: https://hdl.handle.net/21.15107/rcub_dais_8974
Related info:
  • Version of
    https://hdl.handle.net/21.15107/rcub_dais_8974

DOI: 10.1134/S1023193519120164

ISSN: 1608-3342

WoS: 000516575400021

Scopus: 2-s2.0-85077214622
[ Google Scholar ]
4
4
Handle
https://hdl.handle.net/21.15107/rcub_dais_8973
URI
https://dais.sanu.ac.rs/123456789/8973
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Spasojević, Miroslav
AU  - Ribić Zelenović, Lenka
AU  - Spasojević, Milica
AU  - Trišović, Tomislav
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/8973
AB  - An active coating, composed of a mixture of nanocrystals of RuO2 with the rutile structure and nanocrystals of metal Pt, was thermally synthetized on a titanium substrate. Cyclic voltammograms and polarization curves showed that the catalytic activity of the coating for the formic acid oxidation in an acidic solution increased with an increase in the RuO2 content, reaching the maximum value at 50 mol % RuO2. Additionally, further increase in the RuO2 content resulted in a decline of the catalytic activity. The catalytic effect was attributed to a bifunctional mechanism and an electronic effect. The bifunctional mechanism had a dominant role and was based on the fact that Ru–OH species were formed on Ru atoms of RuO2 at more negative potentials than on Pt. Those species oxidized the adsorbed COad and HCOOad—species on adjacent Pt atoms of clusters of metal Pt and thus discharge them to oxidize new HCOOH molecules.
PB  - Springer
T2  - Russian Journal of Electrochemistry
T1  - The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell
SP  - 1350
EP  - 1359
VL  - 55
IS  - 12
DO  - 10.1134/S1023193519120164
UR  - https://hdl.handle.net/21.15107/rcub_dais_8973
ER  - 
@article{
author = "Spasojević, Miroslav and Ribić Zelenović, Lenka and Spasojević, Milica and Trišović, Tomislav",
year = "2019",
abstract = "An active coating, composed of a mixture of nanocrystals of RuO2 with the rutile structure and nanocrystals of metal Pt, was thermally synthetized on a titanium substrate. Cyclic voltammograms and polarization curves showed that the catalytic activity of the coating for the formic acid oxidation in an acidic solution increased with an increase in the RuO2 content, reaching the maximum value at 50 mol % RuO2. Additionally, further increase in the RuO2 content resulted in a decline of the catalytic activity. The catalytic effect was attributed to a bifunctional mechanism and an electronic effect. The bifunctional mechanism had a dominant role and was based on the fact that Ru–OH species were formed on Ru atoms of RuO2 at more negative potentials than on Pt. Those species oxidized the adsorbed COad and HCOOad—species on adjacent Pt atoms of clusters of metal Pt and thus discharge them to oxidize new HCOOH molecules.",
publisher = "Springer",
journal = "Russian Journal of Electrochemistry",
title = "The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell",
pages = "1350-1359",
volume = "55",
number = "12",
doi = "10.1134/S1023193519120164",
url = "https://hdl.handle.net/21.15107/rcub_dais_8973"
}
Spasojević, M., Ribić Zelenović, L., Spasojević, M.,& Trišović, T.. (2019). The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell. in Russian Journal of Electrochemistry
Springer., 55(12), 1350-1359.
https://doi.org/10.1134/S1023193519120164
https://hdl.handle.net/21.15107/rcub_dais_8973
Spasojević M, Ribić Zelenović L, Spasojević M, Trišović T. The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell. in Russian Journal of Electrochemistry. 2019;55(12):1350-1359.
doi:10.1134/S1023193519120164
https://hdl.handle.net/21.15107/rcub_dais_8973 .
Spasojević, Miroslav, Ribić Zelenović, Lenka, Spasojević, Milica, Trišović, Tomislav, "The Mixture of Nanoparticles of RuO2 and Pt Supported on Ti as an Efficient Catalyst for Direct Formic Acid Fuel Cell" in Russian Journal of Electrochemistry, 55, no. 12 (2019):1350-1359,
https://doi.org/10.1134/S1023193519120164 .,
https://hdl.handle.net/21.15107/rcub_dais_8973 .

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