Hostname: page-component-76fb5796d-wq484 Total loading time: 0 Render date: 2024-04-26T05:36:59.662Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of KHCO3, K2CO3 and CO2 on the Electrochemical Reduction of CO2 into Organics on a Cu Electrode for the Solar Energy Conversion and Storage

Published online by Cambridge University Press:  06 May 2014

Heng Zhong ,
Katsushi Fujii  and
Yoshiaki Nakano
Heng Zhong
Affiliation:
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153- 8904, Japan.
Katsushi Fujii
Affiliation:
Global Solar plus Initiative, The University of Tokyo, Tokyo 153-8904, Japan.
Yoshiaki Nakano
Affiliation:
Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan.
Get access

Abstract

Electrochemical reduction of CO2 into useful organics combined with photovoltaics is thought to be one of the promising ways to effectively store and transport the solar energy. In most of the previous researches, CO2 bubbling in different solutions were used as the electrolyte. However, the effects of the electrolyte and the CO2 bubbling are not clear. Therefore, in this research, the effects of different electrolyte, CO2 bubbling, concentration of the electrolyte and temperature on the electrochemical reduction of CO2 on a Cu working electrode were studied. The results showed that the form of the carbon source in the electrolyte, such as HCO3-, CO32- and H2CO3, had a strong effect on this reaction, which was controlled by the pH of the electrolyte. Furthermore, high concentration of the HCO3- and elevated temperature can strongly improve the reaction current density.

Keywords

Cuelectrochemical synthesisenergy storage
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1640: Symposium Z – Sustainable Solar-Energy Conversion Using Earth-Abundant Materials , 2014 , mrsf13-1640-z10-52
Copyright
Copyright © Materials Research Society 2014 

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

Hoffert, M. I., Caldeira, K., Benford, G., Criswell, D. R., Green, C., Herzog, H., Jain, A. K., Kheshgi, H. S., Lackner, K. S., Lewis, J. S., Lightfoot, H. D., Manheimer, W., Mankins, J. C., Mauel, M. E., Perkins, L. J., Schlesinger, M. E., Volk, T. and Wigley, T. M. L., Science 298, 981–987 (2002).CrossRefGoogle Scholar
Timilsina, G. R., Kurdgelashvili, L. and Narbel, P. A., Renew. Sust. Energ. Rev. 16, 449–465 (2012).CrossRefGoogle Scholar
Khaselev, O. and Turner, J. A., Science 280, 425–427 (1998).CrossRefGoogle Scholar
Kumar, B., Llorente, M., Froehlich, J., Dang, T., Sathrum, A. and Kubiak, C. P., Annu. Rev. Phys. Chem. 63, 541–569 (2012).CrossRefGoogle Scholar
Barton, E. E., Rampulla, D. M. and Bocarsly, A. B., J. Am. Chem. Soc. 130, 6342–6344 (2008).CrossRefGoogle Scholar
Hori, Y., Murata, A. and Takahashi, R., J. Chem. Soc., Faraday Trans. 1 85, 2309–2326 (1989).CrossRefGoogle Scholar
Gattrell, M., Gupta, N. and Co, A., J Electroanal Chem. 594, 1–19 (2006).CrossRefGoogle Scholar
Hori, Y., in Modern Aspects of Electrochemistry, edited by Vayenas, C., White, R. and Gamboa-Aldeco, M. (Springer, 2008).Google Scholar
Norskov, J. K., Bligaard, T., Logadottir, A., Kitchin, J. R., Chen, J. G., Pandelov, S. and Norskov, J. K., J. Electrochem. Soc. 152, J23–J26 (2005).CrossRefGoogle Scholar
Kuhl, K. P., Cave, E. R., Abram, D. N. and Jaramillo, T. F., Energ Environ. Sci. 5, 7050–7059 (2012).CrossRefGoogle Scholar
Zeebe, R. E. and Wolf-Gladrow, D. A., CO2 in Seawater: Equilibrium, Kinetics, Isotopes. (Elsevier, 2001).Google Scholar
Lide, D. R., CRC Handbook of Chemistry and Physics (90th Edition). (CRC Press, 2009).Google Scholar