Writers: M.D. Gonçalves and Pardha S. Maram and A. Navrotsky and R. Muccillo Keywords: Proton conductor; Barium zirconate; Powder synthesis; Impedance spectroscopy Abstract: Yttrium-doped barium zirconate ceramic powders were synthesized by the oxidant peroxide method in air and […]
Writers: R. Gonçalves and A.A. Correa and R. Pereira and E.C. Pereira Keywords: poly(3-hexylthiophene); impedance spectroscopy; electrochemical aging; electrochemical degradation Abstract: In this paper, the electrochemical ageing of poly(3-hexilthiophene) was studied using two different films electrodeposited under different […]
Writers: M.D.P. Silva and R.F. Gonçalves and I.C. Nogueira and V.M. Longo and L. Mondoni and M.G. Moron and Y.V. Santana and E. Longo Keywords: Ag2WO4; Ag2MoO4; Photoluminescence; Morphology; Raman spectroscopy Abstract: Ag2W1 -xMoxO4 (x = 0.0 and 0.50) powders were […]
Writers: M.D.P. Silva, R.F. Gonçalves, I.C. Nogueira, V.M. Longo, L. Mondoni, M.G. Moron, Y.V. Santana, E. Longo Keywords: Ag2WO4; Ag2MoO4; Photoluminescence; Morphology; Raman spectroscopy Abstract: Ag2W1 -xMoxO4 (x = 0.0 and 0.50) powders were synthesized […]
Writers: E. Z. Santos, R. Muccillo Keywords: Zirconia-scandia; Impedance spectroscopy Abstract: Zirconia stabilized with 8-12 mol% scandia shows the highest value of oxide ion conductivity among zirconia-based oxides. However, the cubic-rhombohedral phase transition at approximately 600 […]
Writers: L.F. Marchesia, E.C. Pereira Keywords: Polymer morphology; P3HT/PCBM electrodes; Electrochemical impedance spectroscopy Abstract: The characterization of P3HT/PCBM thin films electrodes synthesized using different drying conditions is presented in this paper. P3HT/PCBM thin film was painted on ITO […]
Writers: Eliana N.S. Muccillo, Reginaldo Muccillo Keywords: Electric field-assisted sintering; Tin dioxide; Impedance spectroscopy Abstract: Green compacts of pure SnO2 and with addition of 0.25, 0.5 and 1.0 wt.% MnO2 were sintered by applying 100 V cm−1 at […]
Writers: V. D. Araújo, Fabiana V. Motta, Ana. P. A. Marques, Carlos A. Paskocimas, Maurício R. D. Bomio, Elson. Longo, José. A. Varela Keywords: Ferroelectric materials; polymerization method; X-ray; Raman spectroscopy Abstract: Ferroelectric materials, such as barium titanate (BaTiO3), have […]
Writers: Bartolomeu C. Viana; Juliana Sousa Gonçalves; Valdemir dos Santos; Maria Rita de M. C. Santos; Elson Longo; Francisco E. P. Santos; and José Milton Elias de Matos Keywords: anatase; nanoparticles; solvothermal method; H2O2; Raman […]
Writers: Tanmaya Badapanda, Laécio Santos Cavalcante, Geraldo Eduardo da Luz Jr, Nouga Cardoso Batista, Shahid Anwar, Elson Longo Keywords: Ceramics; Spectroscopy; Study Abstract: In the current article, we studied the effect of yttrium [Y3+] ions’ substitution on the structure and electric behavior of barium zirconate titanate (BZT) ceramics with a general formula [Ba1−xY2x/3](Zr0.25Ti0.75)O3 (BYZT) […]
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