Enchanced supercapacitor performance of CuxO deposited on activated carbon cloth

  • Genes Maylem Materials Science and Engineering Program, University of the Philippines Diliman
  • Luce Vida Sayson Materials Science and Engineering Program, University of the Philippines Diliman
  • Horace Andrew Husay National Institute of Physics, University of the Philippines Diliman
  • Arnel Salvador National Institute of Physics, University of the Philippines Diliman
  • Elmer Estacio National Institute of Physics, University of the Philippines Diliman
  • Armando Somintac National Institute of Physics, University of the Philippines Diliman

Abstract

The supercapacitive performance of CuxO deposited on activated carbon cloth (ACC) is reported. First, Cu was electrochemically deposited on ACC, followed by thermal oxidation at different temperatures. Results of Raman spectroscopy revealed the formation of mixed Cu2O-CuO at both 100 and 150 oC, and a pure CuO phase at 200 oC. Electrochemical measurements demonstrated that the hybridization of CuxO and ACC results in a combination of electric double layer capacitance and pseudocapacitance. Furthermore, the increase in areal capacitance (CA) as scan rate decreased suggests that the charge storage mechanism of the samples is a diffusion-limited process. A highest CA of 40 mF cm-2 was obtained from the Cu2O-CuO mixed phase sample at a relatively high scan rate of 25 mV s-1 in 1.0 M Na2SO4.

Published
2019-05-22
How to Cite
[1]
G. Maylem, L. V. Sayson, H. A. Husay, A. Salvador, E. Estacio, and A. Somintac. Enchanced supercapacitor performance of CuxO deposited on activated carbon cloth, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-26 (2019). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2019-PA-26.