Hydrogen accumulation in surface of perfluorosulfonic acid membranes after γ-ray irradiation using elastic recoil detection techniques

Toru Adachi, Shinji Nagata, Naofumi Ohtsu, Bun Tsuchiya, Kentaro Toh, Tatsuo Shikama

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Electrical conductivity measurements and elastic recoil detection (ERD) analysis were carried our on perfluorosulfonic acid membranes that were irradiated by 60Co γ-ray. Maximum electrical conductivity of irradiated specimen was obtained at 40-60°C, though that of unirradiated specimen increased with increasing temperature. And 4000-fold higher conductivity was obtained in irradiated membrane at 40°C under dry condition. ERD analysis indicated that hydrogen concentration of the irradiated membrane is 1.5-fold higher than that of the unirradiated specimen. It is considered that the γ-ray generates a lot of site that can trap hydrogen and the trapped hydrogen cannot easily move. As the results, irradiated membrane retains more hydrogen than unirradiated one and the electrical conductivity of irradiated membrane is higher than that of unirradiated membrane in any conditions. γ-Ray irradiation is effective for improving the electrical conductivity of proton-conducting membranes.

本文言語English
ページ(範囲)6385-6387
ページ数3
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
45
8 A
DOI
出版ステータスPublished - 2006 8 4

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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