화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.29, 227-237, September, 2015
DOI10.1016/j.jiec.2015.03.032  Export Citation
Fabrication of hierarchical porous anodized titania nano-network with enhanced active surface area: Ruthenium-based dye adsorption studies for dye-sensitized solar cell (DSSC) application
V.C. Anitha, Arghya Narayan Banerjee†, Sang Woo Joo†, and Bong Ki Min1
  • School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, South Korea
  • 1Center for Research Facilities, Yeungnam University, Gyeongsan 712-749, South Korea
E-mail:,
Hierarchical (HC) porous titania (TiO2) nano-networks are developed via a two-step anodization method in a mixed viscous electrolyte of hydrofluoric acid (HF) and glycerol. An ordered imprint was generated on metallic titanium (Ti) substrate and subsequently anodized this imprint in aged HF/glycerol at different conditions to create HC nanostructures. The optimal HF/glycerol volume ratio, conductivity, and initial water/glycerol content of the electrolyte are 1:5, 10 to 12 mS/cm, and 17/83 vol%, respectively, for obtaining HC structures. Also, ruthenium-based dye adsorption analysis demonstrates better dye adsorption on HC-TiO2 as compared to conventional TiO2 nanotubes (TNAs), due to the enhanced active surface area of the HC nano-network.
Keywords:Two-step anodization;Hierarchical TiO2;Conductivity;Surface area;Dye absorption
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