Direct power charge and discharge using the glycolic acid/oxalic acid redox couple toward carbon-neutral energy circulation

M. Yamauchi, R. Watanabe, S. Hata, S. Kitano, M. Sadakiyo, T. Takeguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We demonstrated an electric power circulation method that does not emit CO2 and is based on the glycolic acid (GC)/oxalic acid (OX) redox couple. Electric power charge in GC was achieved through OX electro-reduction with high selectivity (>98%) using purely anatase-type Ti02 spheres in the potential region of -0.5 to -0.7 V vs. RHE at 50 °C. We also realized GC production via the combination of electrochemical OX reduction and electro-oxidation of water with the help of renewable light energy for the first time. Furthermore, we succeeded in power generation via the selective electro-oxidation of GC to OX without CO2 emission. These results are the first experimental proof of the carbon-neutral power circulation involving an alcohol/carboxylic acid redox couple.

Original languageEnglish
Title of host publicationElectrosynthesis of Fuels 4
EditorsH. Xu, G. Brisard, X.-D. Zhou, J. Flake, J. Staser, T. Gur, M. Mogensen, W. Mustain
PublisherElectrochemical Society Inc.
Pages17-21
Number of pages5
Edition43
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2016 Jan 1
EventSymposium on Electrosynthesis of Fuels 4 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2016 Oct 22016 Oct 7

Publication series

NameECS Transactions
Number43
Volume75
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Electrosynthesis of Fuels 4 - PRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period16/10/216/10/7

ASJC Scopus subject areas

  • Engineering(all)

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    Yamauchi, M., Watanabe, R., Hata, S., Kitano, S., Sadakiyo, M., & Takeguchi, T. (2016). Direct power charge and discharge using the glycolic acid/oxalic acid redox couple toward carbon-neutral energy circulation. In H. Xu, G. Brisard, X-D. Zhou, J. Flake, J. Staser, T. Gur, M. Mogensen, & W. Mustain (Eds.), Electrosynthesis of Fuels 4 (43 ed., pp. 17-21). (ECS Transactions; Vol. 75, No. 43). Electrochemical Society Inc.. https://doi.org/10.1149/07543.0017ecst