Additional file 1: Figure S1.

FTIR spectra of MnO2/PANI fabricated in 0.1 M NaOH, 0 HClO4, 0.02 M. Figure S2. FTIR spectra of polyaniline (curve a) and the composites after heat treatment (curves b to f): MnO2/PANI fabricated in 0.1 M NaOH, and 0, 0.02, 0.05, and 0.1 M HClO4. Figure S3. CV curves of the composites before and after 100 cycles stability tests in 0.1 M HClO4 solution at 50 mV s−1, (A-D) samples fabricated in 1, 0.05, and 0.02 M HClO4, and 0.1 M NaOH and (E) MnO2 obtained by heating MnO2/PANI composite fabricated in 0.02 M HClO4.

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Meng et al. Nanoscale Research Letters 2013 8:179   doi:10.1186/1556-276X-8-179