Room temperature chemical synthesis of Cu(OH)2 thin films for supercapacitor application

K. V. Gurav, U. M. Patil, S. W. Shin, G. L. Agawane, M. P. Suryawanshi, S. M. Pawar, P. S. Patil, C. D. Lokhande, J. H. Kim

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Abstract

Room temperature soft chemical synthesis route is used to grow nanograined copper hydroxide [Cu(OH)2] thin films on glass and stainless steel substrates. The structural, morphological, optical and wettability properties of Cu(OH)2 thin films are studied by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), UV-vis spectrophotometer and water contact angle measurement techniques. The results showed that, room temperature chemical synthesis route allows to form the nanograined and hydrophilic Cu(OH)2 thin films with optical band gap energy of 3.0 eV. The electrochemical properties of Cu(OH)2 thin films are studied in an aqueous 1 M NaOH electrolyte using cyclic voltammetry. The sample exhibited supercapacitive behavior with 120 F/g specific capacitance.

Original languageEnglish (US)
Pages (from-to)27-31
Number of pages5
JournalJournal of Alloys and Compounds
Volume573
DOIs
StatePublished - 2013

Bibliographical note

Funding Information:
This work is supported by Human Resource Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 2012-4010203180) and was partially funded by National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST-No. 2011-0016564 ) and was supported by the Center for Inorganic Photovoltaic Materials (No. 2012-0001170 ) grant funded by the Korea Government (MEST).

Keywords

  • Copper hydroxide [Cu(OH)] Thin films Room temperature synthesis X-ray diffraction Supercapacitor

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