Research Article

Synthesis of Metal Oxide Decorated Polycarboxyphenyl Polymer-Grafted Multiwalled Carbon Nanotube Composites by a Chemical Grafting Approach for Supercapacitor Application

Figure 7

(a) Cyclic voltammograms of (A) purified MWNT, (B) P-CNT, (C) Sm2O3/P-CNT, and (D) Fe2O3/P-CNT electrodes at a scan rate of 5 mV s−1 in 1.0 M H2SO4 electrolyte. (b) Cyclic voltammograms of Sm2O3/P-CNT electrodes measured in 1.0 M H2SO4 electrolyte at the scan rates of (A) 5 mV s−1, (B) 10 mV s−1, and (C) 15 mV s−1. (c) Cyclic voltammograms of Fe2O3/P-CNT electrodes measured in 1.0 M H2SO4 electrolyte at the scan rates of (A) 5 mV s−1, (B) 10 mV s−1, and (C) 15 mV s−1.
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