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CO2 Electrolysis by solid electrolyte having iron catalyst

Research Project

Project/Area Number 24561010
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Recycling engineering
Research InstitutionKyoto University

Principal Investigator

YOSHIAKI Kashiwaya  京都大学, エネルギー科学研究科, 准教授 (10169435)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsCO2排出削減 / 電気分解 / 固体電解質 / 鉄触媒 / ReDox反応 / CO2電解 / 電極構造 / CO2削減
Outline of Final Research Achievements

Reductions in CO2 emission can be achieved directly through CO2 capture and storage (CCS). It is effective method for the large CO2 emitters such as electrical power plants and iron and steel mills. Solid-oxide electrolysis presents an alternative means of reducing CO2 that can use some of the CO2 captured by CCS as a source of electrolysis. In addition, unused heat generated by steelmaking and through renewable sources (e.g., solar and wind) can be utilized for high-temperature electrolysis.
This study investigated the effect of applying a high voltage of between 2.5 and 4.0 V to common electrolytic materials (YSZ and Pt), and found that although the initial current density is very low, it increases drastically upon application of a high voltage. The results of FE-SEM observation revealed that the interface between the YSZ and Pt electrode moves into the YSZ by about 70 micro m, and consists of a nano- and micro-porous structure that reduces the resistivity and gas diffusivity.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (9 results)

All 2015 2014 2013 2012

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Effect of Applied Voltage on the Current Density of CO<sub>2</sub> Electrolysis in High Temperature2015

    • Author(s)
      Yoshiaki Kashiwaya, Yohei Shiomi, Takahiro Nomura and Masakatsu Hasegawa
    • Journal Title

      ISIJ International

      Volume: 55 Issue: 2 Pages: 392-398

    • DOI

      10.2355/isijinternational.55.392

    • NAID

      130004734564

    • ISSN
      0915-1559, 1347-5460
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 高温CO2 電解におけるナイキスト線図におよぼすアノードガス条件の影響2014

    • Author(s)
      柏谷悦章、塩見燿平、長谷川将克
    • Organizer
      日本鉄鋼協会第167回講演大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-09-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 高温CO2 電解におけるナイキスト線図におよぼす温度の影響2014

    • Author(s)
      柏谷悦章、塩見燿平、長谷川将克
    • Organizer
      日本鉄鋼協会第167回講演大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-09-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] CO2 Electrolysis using waste heat in Steel Works.2014

    • Author(s)
      Y.Shiomi, Y.Kashiwaya, M.Hasegawa
    • Organizer
      ICSRI (International Conference on Smart Carbon Saving and Recycling for Ironmaking)
    • Place of Presentation
      神奈川,日本
    • Related Report
      2013 Research-status Report
  • [Presentation] YSZ固体電解質を用いたCO2高温還元とPt電極構造の影響2014

    • Author(s)
      柏谷悦章,塩見燿平,桜井拓弥,長谷川将克(京大),能村貴宏,秋山友宏(北大)
    • Organizer
      日本鉄鋼協会第167回講演大会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Research-status Report
  • [Presentation] High Temperature Electrolysis of CO2 Using Waste Heat in Steel Works2013

    • Author(s)
      Y. Shiomi, Y. Kashiwaya, M. Hasegawa
    • Organizer
      9th Japan-Brazil Symposium on Dust Processing &#8211; Energy &#8211; Environment in Metallurgical Industries 2013年9月9日 オウロ・プレット連邦大学
    • Place of Presentation
      オウロ・プレット連邦大学 ブラジル
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 高温 CO 2電解への鉄触媒利 電解への鉄触媒利 電解への鉄触媒利用2013

    • Author(s)
      塩見燿平,柏谷悦章,長谷川将克
    • Organizer
      日本鉄鋼協会 CAMP-ISIJ VOL. 27(2013)
    • Place of Presentation
      東京電機大学
    • Related Report
      2012 Research-status Report
  • [Presentation] ジルコニア固体電解質を利用したCO2 電解と鉄触媒の影響2012

    • Author(s)
      柏谷悦章,長谷川将克
    • Organizer
      日本鉄鋼協会 CAMP-ISIJ VOL. 26(2012)
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Research-status Report
  • [Book] 炭素循環製鉄の展開2015

    • Author(s)
      炭素循環製鉄研究会
    • Total Pages
      233
    • Publisher
      (一社)日本鉄鋼協会
    • Related Report
      2014 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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