Electrocatalytic Oxidation of Oxalic Acid Using a Multielectrolytic Modified Glassy Carbon Electrodes

Abstract:

Electrocatalytic oxidation activity of oxalic acid can be observed by using a multielectrolytic modified glassy carbon electrode (MMGCE). The MMGCE was fabricated by using the following electrolytic-oxidation/reduction processes. First, the functional groups containing nitrogen atoms such as amino group are introduced by the electrode oxidation of a bare glassy carbon electrode in an ammonium carbamate aqueous solution, and next, this electrode was electroreduced in sulfuric acid, and it was found that the reduction current gradually increased as the electrolysis time increased. This suggests that functional groups containing nitrogen atoms contributing the catalytic electron transfer of hydrogen ion are introduced. To observe the electrode oxidation wave of oxalic acid, the voltammmetric measurements of oxalic acid was carried out by using MMGCE in an acidic medium. The oxidation wave of oxalic acid at low potential range was appeared in the linear sweep voltammograms. The MMGCE exhibited well-defined peak of oxalic acid oxidation in acidic medium.

• Periodical: Materials Science Forum (Volume 833)
• Pages: 35-38
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.833.35
• Online since: November 2015
• Authors: Syuhei Akabe, Koichi Asaka, Takuto Takahashi, Tsubasa Kitamura, Hiroaki Matsuura*, Shunichi Uchiyama
• Keywords: Electrocatalytic Oxidation, Multielectrolytic Modified Glassy Carbon Electrode, Oxalic Acid

References

[1] G. M. Jenkins and K. Kawamura: Nature, Vol. 231 (1971), p.175.

[2] R. L. McCreery: Chem. Rev., Vol. 108 (2008), p.2646.

[3] R. W. Murray: Electroanalytical Chemistry, edtied by A. J. Bard Marcel Dekker: New York, Vol. 13 (1984) p.191.

[4] R. W. Murray: Electroanalytical Chemistry, edtied by A. J. Bard Marcel Dekker: New York, Vol. 17 (1991) p.221.

[5] S. M. Lyth, Y. Nabae, S. Morita, S. Kuroki, M. Kakimoto, J. Ozaki and S. Miyata: J. Phys. Chem. C, Vol. 113 (2009) p.20148.

DOI: 10.1021/jp907928j

[6] H. Watanabe, H. Yamazaki, X. Wang and S. Uchiyama: Electrochimica Acta, Vol. 54 (2009), p.1362.

[7] S. Uchiyama, H. Watanabe, H. Yamazaki, A. Kanazawa, H. Hamana and Y. Okabe: J. Electrochem. Soc., Vol. 154 (2007), p. F31.

DOI: 10.1149/1.2402127

[8] X. Wang and S. Uchiyama: Anal. Lett., Vol. 41 (2008), p.1173.

[9] H. Matsuura, Y. Yamawaki, K. Sasaki and S. Uchiyama: J. Environ. Sci., Vol. 88 (2013), p.251.

[10] A. Kanazawa, T. Okajima, S. Uchiyama, A. Kawauchi, and T. Osaka: Langmuir, 30 (2014), p.5297.