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Citrate combustion synthesized Al-doped CaCu3Ti4O12 quadruple perovskite: synthesis, characterization and multifunctional properties.
Pal, Kamalesh; Dey, Arka; Jana, Rajkumar; Ray, Partha P; Bera, Parthasarathi; Kumar, Lalit; Mandal, Tapas Kumar; Mohanty, Paritosh; Seikh, Md Motin; Gayen, Arup.
Afiliación
  • Pal K; Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com arup.gayen@jadavpuruniversity.in.
  • Dey A; Department of Physics, Jadavpur University, Kolkata 700032, India and Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India.
  • Jana R; Department of Physics, Jadavpur University, Kolkata 700032, India.
  • Ray PP; Department of Physics, Jadavpur University, Kolkata 700032, India.
  • Bera P; Surface Engineering Division, CSIR - National Aerospace Laboratories, Bengaluru 560017, India.
  • Kumar L; Department of Chemistry and Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
  • Mandal TK; Department of Chemistry and Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
  • Mohanty P; Department of Chemistry and Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
  • Seikh MM; Department of Chemistry, Visva-Bharati, Santiniketan 731235, India. mdmotin.seikh@visva-bharati.ac.in.
  • Gayen A; Department of Chemistry, Jadavpur University, Kolkata 700032, India. agayenju@yahoo.com arup.gayen@jadavpuruniversity.in.
Phys Chem Chem Phys ; 22(6): 3499-3511, 2020 Feb 14.
Article en En | MEDLINE | ID: mdl-31993602
The facile synthesis of the Al-doped CaCu3Ti4O12 quadruple perovskite, a well-known and vastly studied material for various technological applications, using the modified citrate combustion route along with structural, microstructural, and X-ray photoelectron spectroscopic (XPS) characterization and magnetic, dielectric and electrical properties has been investigated and reported here. The possible applications of the material as a Schottky barrier diode (SBD) in optoelectronic devices and as a catalyst in methanol steam reforming (MSR) reaction for hydrogen generation, hitherto unreported in the open literature, have also been explored. The compound is crystallized in the cubic body centered Im3[combining macron] space group and the particle size is found to be in nanodimension with rather narrow size distribution. The enhanced resistivity could be attributed to the grain boundary effect, and consequently, it exhibits better performance as a SBD compared to the undoped sample. Desired cationic composition with expected valence states within the probe range is confirmed by XPS analysis. A better catalytic activity towards MSR is noticed for the Al-doped CaCu3Ti4O12 compared to the undoped composition. These new findings, namely MSR activity and applicability in the Schottky device, have highlighted further the multifunctional nature of the material in energy related issues and would thus be of interest to the materials community searching for functional materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido