High Energy Electrochemical Capacitor Materials Prepared by Loading Ruthenium Oxide on Activated Carbon

• NANAUMI Takeshi

  Department of Applied Chemistry, Faculty of Engineering, Kanagawa University

• OHSAWA Yasuhiko

  Nissan Research Center, Nissan Motor Company, Limited, Materials Research Laboratory

• KOBAYAKAWA Koichi

  Department of Applied Chemistry, Faculty of Engineering, Kanagawa University

• SATO Yuichi

  Department of Applied Chemistry, Faculty of Engineering, Kanagawa University

抄録

Activated carbon has high power density, but has limited specific capacity. To increase the capacity of activated carbon, ruthenium oxide was loaded into coal-based activated carbon by suspending the activated carbon in an aqueous RuCL solution followed by neutralization. Although the BET surface area of the activated carbon decreased upon ruthenium oxide loading compared to that of the starting material, its capacitance increased. The maximum capacity obtained in this study was 324 F g⁻¹ for activated carbon loaded with 3.2 wt% ruthenium, an increase of about 25%. This unexpected large increase is considered to be due to an introduction of pseudocapacitance of ruthenium oxide and a new mesopore formation by oxidation of activated carbon during the heating process of the composite to improve the pore utility for double layer capacitance.

収録刊行物

• Electrochemistry

  Electrochemistry 70 (9), 681-685, 2002-09-05

  公益社団法人　電気化学会

キーワード

• Electrochemical Capacitor
• Activated Carbon
• Ruthenium Oxide

詳細情報

• CRID: 1390001277348147968
• NII論文ID: 10009443372
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.70.681
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 6289673
• Web Site: http://id.ndl.go.jp/bib/6289673
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6289673
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/70/9/70_681/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可