Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-10T11:01:56.228Z Has data issue: false hasContentIssue false

Catalytic Activity of Titanium and Ruthenium Oxide Nanosheets in the Oxygen Reduction Reaction

Published online by Cambridge University Press:  20 August 2019

Takahiro Saida*
Affiliation:
Department of Applied Chemistry, Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Aichi, Nagoya468-8502Japan Division of Applied Chemistry, Graduate School of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Aichi, Nagoya468-8502Japan
Miyu Mashiyama
Affiliation:
Division of Applied Chemistry, Graduate School of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Aichi, Nagoya468-8502Japan
Takahiro Maruyama
Affiliation:
Department of Applied Chemistry, Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Aichi, Nagoya468-8502Japan Division of Applied Chemistry, Graduate School of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Aichi, Nagoya468-8502Japan
*
Get access

Abstract:

Monolayer molecular electrodes composed of titanium oxide nanosheets (TiO2ns) or ruthenium oxide nanosheets (RuO2ns) were prepared and their activities in the oxygen reduction reaction (ORR) were evaluated to investigate the ORR active sites in oxide catalysts. In TiO2ns, the influence of physical distortion sites in the crystal structure formed by introducing oxygen vacancies was determined. The ORR activity of TiO2ns was improved by introducing physical distortion sites. In RuO2ns, the effects of both the type of crystal structure and electrochemical distortion sites arising from redox reactions on ORR performance were studied. The type of crystal structure had almost no effect on ORR activity. In contrast, electrochemical distortion sites were expected to behave as the ORR active sites because the on-set potential of the ORR was similar to the redox peak position for the RuO2ns. Thus, the distortion sites in oxide crystal structures may behave as the active sites in the ORR independent of the metal species.

Type
Articles
Copyright
Copyright © Materials Research Society 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

References:

Ota, K., Ohgi, Y., Nam, K.-D., Matsuzawa, K., Mitsushima, S., and Ishihara, A., J. Power Sources 196, 5256 (2011).CrossRefGoogle Scholar
Chisaka, M., Ishihara, A., Morioka, H., Nagai, T., Yin, S., Ohgi, Y., Matsuzawa, K., Mitsushima, S., and Ota, K., ACS Omega 2, 678 (2017).CrossRefGoogle Scholar
Ishihara, A., Tamura, M., Ohgi, Y., Matsumoto, M., Matsuzawa, K., Mitsushima, S., Imai, H., and Ota, K., J. Phys. Chem. C 117, 18837 (2013).CrossRefGoogle Scholar
Tominaka, S., Ishihara, A., Nagai, T., and Ota, K., ACS Omega 2, 5209 (2017).CrossRefGoogle Scholar
Ishihara, A., Wu, C., Nagai, T., Ohara, K., Nakada, K., Matsuzawa, K., Napporn, T., Arao, M., Kuroda, Y., Tominaka, S., Mitsushima, S., Imai, H., and Ota, K., Electrochim. Acta 283, 1779 (2018).CrossRefGoogle Scholar
Takasu, Y., Yoshinaga, N., and Sugimoto, W., Electrochem. Commun. 10, 668 (2008).CrossRefGoogle Scholar
Saida, T., Hirano, S., Niwa, E., Sato, F., and Maruyama, M., ECS Trans. 85, 865 (2018).CrossRefGoogle Scholar
Woods, R., Israel J. Chem. 18, 118 (1979).CrossRefGoogle Scholar
Stefan, I. C., Mo, Y., Antonio, M. R., and Scherson, D. A., J. Phys. Chem. B 106, 12373 (2002).CrossRefGoogle Scholar
Mo, Y., Antonio, M. R., and Scherson, D. A., J. Phys. Chem. B 104, 9777 (2000).CrossRefGoogle Scholar
Rao, R. R., Kolb, M. J., Halck, N. B., Pedersen, A. F., Mehta, A., You, H., Stoerzinger, K. A., Feng, Z., Hansen, H. A., Zhou, H., Giordano, L., Rossmeisl, J., Vegge, T., Chorkendorff, I., Stephens, I. E. L. and Shao-Horn, Y., Energy Environ. Sci. 10, 2626 (2017).CrossRefGoogle Scholar
Sugimoto, W., Iwata, H., Yasunaga, Y., Murakami, Y., and Takasu, Y., Angew. Chem. Int. Ed. 42, 4092 (2003).CrossRefGoogle Scholar
Fukuda, K., Kato, H., Sato, J., Sugimoto, W., and Takasu, Y., J. Solid State Chem. 182, 2997 (2009).CrossRefGoogle Scholar
Fukuda, K., Saida, T., Sato, J., Yonezawa, M., Takasu, Y., and Sugimoto, W., Inorg. Chem. 49, 4391 (2010).CrossRefGoogle Scholar
Sasaki, T., Watanabe, M., Michiue, Y., Komatsu, Y., Izumi, F., and Takenouchi, S., Chem. Mater. 7, 1001 (1995).CrossRefGoogle Scholar
Fukuda, K., Ebina, Y., Shibata, T., Aizawa, T., Nakai, I., and Sasaki, T., J. Am. Chem. Soc. 129, 202 (2007).CrossRefGoogle Scholar