Work

Synthesis and Characterization of Electrochemically Prepared Ruthenium Oxide on Carbon Nanotube Film Substrate for Supercapacitor Applications

Year: 2005

Type: article

Abstract: Ruthenium oxide was electrodeposited onto a carbon nanotube (CNT) film substrate with a three-dimensional porous structure at the nanometer scale. For comparison, ruthenium oxide was prepared on a Pt plate and carbon paper substrate. Microstructures of the ruthenium oxide-based electrodes examined by scanning and transmission electron microscopy showed that the ruthenium oxide layers ( thickness) were electrochemically deposited on the surface of the multiwalled CNT. The ruthenium oxide on CNT film substrate showed not only a much higher specific capacitance of , but also an improved rate capability, compared with the ruthenium oxide layers on a Pt plate and carbon paper substrate. The improved specific capacitance and rate capability of ruthenium oxide on CNT film substrate are attributed to its electrode construction comprising a very thin film of the electroactive material on a conductive CNT film substrate with a three-dimensional nanoporous structure.

Source: Journal of The Electrochemical Society

DOI: 10.1149/1.2041147

Authors: Il-Hwan Kim, Jae-Hong Kim, Young-Ho Lee, Kwang-Bum Kim

Institutions: Yonsei University, Korea Institute of Ceramic Engineering and Technology

Language: English

Topic: Supercapacitor Materials and Fabrication

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funders: Yonsei University, Korea Science and Engineering Foundation