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Fundamental Study on Electrochemical Dechlorination of Dioxins

Research Project

Project/Area Number 12650805
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 工業物理化学
Research InstitutionCHIBA UNIVERSITY

Principal Investigator

HOSHI Nagahiro  Chiba University, Graduate School of Natural Science, Associate Professor, 自然科学研究科, 助教授 (30238729)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywordsdechlorination / chlorobenzene / aromatic chloride / metal electrodes / mediator / acetonitrile / naohthalene / benzene
Research Abstract

Chlorobenzene constitutes the parts of dioxins. Studying active electrodes for dechlorination of chlorobenzene will lead to the development of electro-catalysts for transforming dioxins to harmless materials. Electrochemical dechlorination of chlorobenzene was studied using voltammograms and macro electrolysis in acetonitrile solution containing 0.1 M TEAP and mediators. Electrodes examined were Pt, Ir, Rh, Pd, Au, Ag, Zn, In, Pb, Sn, Cu, Fe, and Cd. Naphthalene, dibenzofuran, anthracene and perylene were adopted as mediators. Voltammograms in the solution containing chlorobenzene and naphthalene gave a peak arising from the reduction of chlorobenzene on the electrodes of which overpotentials for hydrogen evolution are high. The following order was obtained for the reduction current : Cd < Sn < In < Pb < Zn < Ag. The other electrodes gave no current due to the reduction of chlorobenzene, because the current due to the hydrogen evolution overwhelmed the reduction current. Dibenzofuran gave the same results as naphthalene, whereas anthracene and perylene had no activity for the reduction of chlorobenzene.
We did macro electrolysis on Ag, Zn and Pt electrodes at -2.8 V (Ag/Ag^+) in 0.1 M TEAP/acetonitrile containing 10 mM of chlorobenzene and naphthalene. The main product was benzene on all the electrodes : current efficiency of benzene was 38% for Pt, 86% for Ag and Zn, respectively. Another reduction product was hydrogen. The partial current density of Ag was highest of all, 12.4 mA/cm^2. This value is more than 5 times as high as the former report using C electrode and dibenzofuran. The combination of Ag electrode and naphthalene has the high activity for the dechlorination of chlorobenzene.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] Nagahiro Hoshi: "Voltammograms of the single crystal electrodes of palladium in aqueous sulfuric acid electrolyte: Pd(S)-[n(111)x(111)] and Pd(S)-[n(lOO)x(111)]"J. Electroanal. Chem.. 485・1. 55-60 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "In situ infrared reflection absorption spectroscopic studies of coadsorption of CO with underpotential deposited lead on Pt(111) in aqueous acidic solution"J. Phys. Chem. B. 104・25. 6049-6052 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "Electrochemical reduction of carbon dioxide at a series of platinum single crystal electrodes"Electrochim. Acta. 45・25-26. 4263-4270 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "Configuration of adsorbed CO affected by the terrace width of Pt(S)-[n(111)×(111)] electrodes"Chem. Phys. Let.. 336・1-2. 13-18 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshio Hori: "Selective formation of C2 compounds from electrochemical reduction of CO_2 at a series of copper single crystal electrodes"J. Phys. Chem. B. 106・1. 15-17 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "Infrared Reflection Absorption Spectroscopy of Sulfuric Acid Anion Adsorbed on Stepped Surfaces of Platinum Single Crystal Electrodes"J. Phys. Chem. B. 106・8. 1985-1990 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "Voltammograms of stepped and kinked stepped surfaces of palladium: Pd(S)-[n(111)x(100)] and Pd(S)-[n(100)x(110)]"J. Electroanal. Chem.. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 星 永宏: "電極作製 単一結晶面の作製 各金属電極の単一結晶面の出し方,電極の作り方Q:白金単結晶面の出し方と電極の作製法はどのようにするか?"Electrochemistry. 70・1. 54-56 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 星 永宏(分担執筆): "電極触媒科学の新展開"北海道大学図書刊行会. 350(29-52) (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi, K. Kagaya, Y. Hori: "Voltammograms of the single crystal electrodes of palladium in aqueous sulfuric acid electrolyte : Pd(S)-[n(111)x(111)] and Pd(S)-[n(10O)x(111)]"J. Electroanal. Chem.. 485 (1). 55-60 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi, I. T. Bae, D. A. Scherson: "In situ infrared reflection absorption spectroscopic studies of coadsorption of CO with underpotential deposited lead on Pt(111) in aqueous acidic solution"J. Phys. Chem. B.. 104 (25). 6049-6052 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi, Y. Hori: "Electrochemical reduction of carbon dioxide at a series of platinum single crystal electrodes"Electrochim. Acta.. 45 (25-26). 4263-4270 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi, M. Tanizaki, O. Koga, Y. Hori: "Configuratioh of adsorbed CO affected by the terrace width of Pt(S)-[n(111)x(111)] electrodes"Chem. Phys. Lett.. 336 (1-2). 13-18 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y. Hori, I. Takahashi, O. Koga, N. Hoshi: "Selective formation of C2 compounds from electrochemical reduction of CO_2 at a serried of copper single crystal electrodes"J. Phys. Chem. B.. 106 (1). 15-17 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi, A. Sakurada, S. Nakamura, S. Teruya, O. Koga, Y. Hori: "Infrared Reflection Absorption Spectroscopy of Sulfuric Acid Anion Adsorbed on Stepped Surfaces of Platinum Single Crystal Electrodes"J. Phys. Chem. B.. 106 (8). 1985-1990 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hoshi, M. Kuroda, Y. Hori: "Voltammograms of stepped and kinked stepped surfaces of palladium : Pd(S)-[n(111)x(100)] and Pd(S)-[n(100)x(l10)]"J. Electroanal. Chem.. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi: "How to orient and prepare a single crystal of platinum"Electrochemistry. 79 (1). 54-56 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Hoshi: "New Developments of the Science on Electro-catalysis"Hokkaido University Press. total 350 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nagahiro Hoshi: "Voltammograms of the single crystal electrodes of palladium in aqueous sulfuric acid electrolyte: Pd(S)-[n(111)×(111)]and Pd(S)-[n(100)×(111)]"J. Electroanal. Chem.. 485・1. 55-60 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "In situ infrared reflection absorption spectroscopic studies of coadsorption of CO with underpotential deposited lead on Pt(111) in aqueous acidic solution"J. Phys. Chem. B. 104・25. 6049-6052 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Electrochemical reduction of carbon dioxide at a series of platinum single crystal electrodes"Electrochim. Acta. 45・25-26. 4263-4270 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Configuration of adsorbed CO affected by the terrace width of Pt(S)-[n(111)×(111)] electrodes"Chem. Phys. Lett.. 336・1-2. 13-18 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshio Hori: "Selective formation of C2 compounds from electrochemical reduction of CO_2 at a series of copper single crystal electrodes"J. Phys. Chem. B. 106・1. 15-17 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Infrared Reflection Absorption Spectroscopy of Sulfuric Acid Anion Adsorbed on Stepped Surfaces of Platinum Single Crystal Electrodes"J. Phys. Chem. B. 106・8. 1985-1990 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Voltammograms of stepped and kinked stepped surfaces of palladium: Pd(S)-[n(111)×(100)]and Pd(S)-[n(100)×(110)]"J. Electroanal. Chem.. (印刷中).

    • Related Report
      2001 Annual Research Report
  • [Publications] 星 永宏: "電極作製 単一結晶面の作製 各金属電極の単一結晶面の出し方,電極の作り方Q:白金単結晶面の出し方と電極の作製法はどのようにするか?"Electrochemistry. 70・1. 54-56 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 星 永宏(分担執筆): "電極触媒科学の新展開"北海道大学図書刊行会. 350 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Voltammograms of the single crystal electrodes of palladium in aqueous sulfuric acid electrolyte : Pd(S)-[n(111)×(111)] and Pd(S)-[n(100)×(111)]"J.Electroanal.Chem.. 485・1. 55-60 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nagahiro Hoshi: "In situ infrared reflection absorption spectroscopic studies of coadsorption of CO with underpotential deposited lead on Pt(111) in aqueous acidic solution"J.Phys.Chem.B. 104・25. 6049-6052 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Electrochemical reduction of carbon dioxide at a series of platinum single crystal electrodes"Electrochim.Acta. 45・25-26. 4263-4270 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nagahiro Hoshi: "Configuration of adsorbed CO affected by the terrace width of Pt(S)-[n(111)×(111)] electrodes"Chem.Phys.Lett.. 336・1-2. 13-18 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 星永宏(分担執筆): "電極触媒科学の新展開"北海道大学図書刊行会. 350(29-52) (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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