Superior electric storage in de-alloyed and anodic oxidized Ti-Ni-Si glassy alloy ribbons

M. Fukuhara, H. Yoshida, M. Sato, K. Sugawara, T. Takeuchi, I. Seki, T. Sueyoshi

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Ti-Ni-Si glassy alloy supercapacitors, devices that store electric charge on their TiO2 surfaces that contain many nanometer-sized cavities, display many advantages over other power-source technologies. The use of de-alloying and anodic oxidization methods has made possible the synthesis of a TiO2 surface accessible to electron trapping. Until recently, no studies have addressed the "dry" electric storage in light glassy alloys. Our device realizes AC electric storage from 193 to 453 K with a voltage variation from 10 to 150 V, and DC capacitance of ∼4.8 F (∼52.8 kF/cm3), on the basis of electric double layers, deep electronic trapping sites and Shottky barriers. Further gains could be attained with surface optimization.

本文言語English
ページ(範囲)477-480
ページ数4
ジャーナルPhysica Status Solidi - Rapid Research Letters
7
7
DOI
出版ステータスPublished - 2013 7月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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