Comparative Study of the Efficiency of New Technical Carbons СН210 and С40 in Electrosynthesis of Н2О2 from О2 in Gas-Diffusion Electrodes on Their Basis

V. L. Kornienko V. L. Kornienko , G. A. Kolyagin G. A. Kolyagin , G. V. Kornienko G. V. Kornienko , V. A. Parfenov V. A. Parfenov
Российский электрохимический журнал
Abstract / Full Text

The efficiency of new brands of technical carbon CH210 and C40 in the electrogeneration of Н2О2 from О2 in gas-diffusion electrodes (GDE) on their basis is studied in acidic solutions of the 0.5 М K2SO4 : 0.1 M H2SO4 (3 : 1) electrolyte. The textural characteristics of original materials and their mixtures with polytetrafluoroethylene used as the hydrophobizer are determined by low-temperature nitrogen adsorption as well as their electric double layer capacitance. For a comparison, similar studies are also carried out with technical carbon Vulcan XC-72. The rate constants for hydrogen peroxide decomposition on these materials in acidic solutions are determined. The data on the kinetics of hydrogen peroxide accumulation at the overall current density of 1500 А/m2 are as follows: the 6 h electrolysis produces the solution with Н2О2 concentration exceeding 2.5 М with the current efficiency higher than 70.0%. It is concluded that in this case, the surface area is not the determining factor. The technical carbons СН210 and С40 are comparable as regards their efficiency with the well-known technical carbon Vulcan XC-72 and can be used as electrocatalysts in GDE for electrosynthesis of Н2О2 from О2.

Author information
  • Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Federal Research Institute “Krasnoyarsk Research Center,” Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

    V. L. Kornienko, G. A. Kolyagin & G. V. Kornienko

  • Reshetnev Siberian State University of Science and Technology, 660049, Krasnoyarsk, Russia

    V. A. Parfenov

  1. Noyori, R., Pursuing practical elegance in chemical synthesis, Chem. Commun., 2005, p. 1807.
  2. Khimiya i tekhnologiya perekisi vodoroda (Chemistry and Technology of Hydrogen Peroxide), Seryshev, G.A., Ed., Leningrad: Khimiya, 1984.
  3. Berl, B.E., A new cathodic process for the production H2O2, Trans. Electrochem. Soc., 1939, vol. 76, p. 359.
  4. Zakharkin, G.I., Tarasevich, M. R., and Burshtein, R.Kh., Study of the reactions of oxygen and hydrogen peroxide by means of O18. IV. Mechanism of the decomposition of hydrogen peroxide on various forms of carbon, Sov. Electrochem., 1974, vol. 10, p. 1716.
  5. Kolyagin, G.A. and Kornienko, V.L., Kinetics of hydrogen peroxide accumulation in electrosynthesis from oxygen in gas-diffusion electrode in acidic and alkaline solutions, Russ. J. Appl. Chem., 2003, vol. 76, p. 1070.
  6. Kornienko, V.L., Kolyagin, G.A., and Saltykov, Yu.V., Elektrosintez v gidrofobizirovannykh elektrodakh (Electrosynthesis in Waterproofed Electrodes), Novosibirsk: Sib. Otd. Ross. Akad. Nauk, 2011. (http://www.rfbr.ru/rffi/ru/books/o_1781580#1)
  7. Kornienko, V.L., Kolyagin, G.A., Kornienko, G.V., Parfenov, V.A., and Ponomarenko, I.V., Electrosynthesis of H2O2 from O2 in gas diffusion electrodes based on mesostructured carbon CMK-3, Russ. J. Electrochem., 2018, vol. 54. p. 192.
  8. Garcia-Rodriguez, O., Lee, Yi, Yang, Olvera-Vargas, H., Deng, F., Wang, Z., and Lefebvre, O., Mineralization of wastewater by electro-Fenton with on enhanced grapheme-based gas diffusion cathode, Electrochim. Acta, 2018, vol. 276, p. 12.
  9. Zhang, Z., Meng, H., Wang, Y., Shi, L., Wang, X., and Chai, S., Fabrication of graphene graphite-based gas diffusion electrode for improving H2O2 generation in electro-Fenton process, Electrochim. Acta, 2018, vol. 260, p. 112.
  10. Kornienko, V.L., Kolyagin, G.A., Kornienko, G.V., Parfenov, V.A., and Petin, A.A., Electrosynthesis of H2O2 from O2 in gas diffusion electrodes based on black CH600, Russ. J. Electrochem., 2017, vol. 53, p. 1307.
  11. Luo, H., Li, C., Wu, C., and Dong, X., In situ electrosynthesis of hydrogen peroxide with an improved gas diffusion cathode rolling by carbon black and PTFE, RSC Adv., 2015. vol. 5, p. 6527.