Enchanced supercapacitor performance of Cu_xO deposited on activated carbon cloth

Authors

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

Abstract

The supercapacitive performance of Cu_xO 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 Cu_xO and ACC results in a combination of electric double layer capacitance and pseudocapacitance. Furthermore, the increase in areal capacitance (C_A) as scan rate decreased suggests that the charge storage mechanism of the samples is a diffusion-limited process. A highest C_A 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.

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Issue

2019: Proceedings of the 37th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2019-PA-26

Section

Poster Session PA

Published

2019-05-22

How to Cite

[1]

G Maylem, LV Sayson, HA 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://proceedings.spp-online.org/article/view/SPP-2019-PA-26.