Enhanced Performance of Supported HfO2 Counter Electrodes for Redox Couples Used in Dye‐Sensitized Solar Cells. Issue 2 (7th January 2014)

• Record Type: Journal Article
• Authors: Yun, Sining; Pu, Haihui; Chen, Junhong; Hagfeldt, Anders; Ma, Tingli
• Is Part Of: ChemSusChem. Volume 7:Issue 2(2014:Feb.)
• Page Start: 442
• Page End: 450
• Publication Date: 2014-01-07
• Subjects: Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201301140
• Languages: English
• ISSNs: 1864-5631

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Mesoporous‐graphitic‐carbon‐supported HfO₂ (HfO₂‐MGC) nanohybrids were synthesized by using a soft‐template route. Characterization and a systematic investigation of the catalytic properties, stability, and catalytic mechanism were performed for HfO₂‐MGC counter electrodes (CEs) in dye‐sensitized solar cells (DSSCs). The new HfO₂‐MGC as a CE in DSSCs showed a surprisingly high efficiency of 7.75 % for the triiodide/iodide redox couple and 3.69 % for the disulfide/thiolate redox couple, greater than the Pt electrode in the corresponding electrolyte system, which opens up a possibility for its practical application.</p> </abstract>