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Scanning electron micrographs of (a) the pristine (A450), (b) the heat-treated (N800), (c) the deposited on the reduced , and (d) the x-ray diffraction pattern of pristine (A450) and heat-treated (N800). The rutile peaks are denoted as .
Cyclic voltammograms of the electrodes based on pristine (A450) and heat-treated (N800) substrates in electrolyte at a scan rate of (a) and (b) .
(a) Variation of specific capacitance calculated from cyclic voltammograms and (b) galvanostatic charge-discharge voltage profiles of pristine (A450Ru) and heat-treated (N800Ru) electrodes at .
EIS results conducted on electrodes based on pristine (A450) and heat-treated (N800) in solution. (a) Nyquist and (b) Bode plots.
Preparation conditions and properties of substrates.
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