Characterization of NiO–Al2O3 composite and its conductivity in biogas for solid oxide fuel cell

• Autorzy: Patil S. P. , Jadhav L. D. , Dubal D. P. , Puri V. R.

Identyfikatory

DOI

10.1515/msp-2016-0045

• Języki publikacji: EN

Abstrakty

EN

NiO–Al₂O₃ nanocomposite has been synthesized by mixing combustion synthesized powders. The nanocomposite is an effective anode/anode functional layer for intermediate temperature solid oxide fuel cells. The TEM of NiO and Al₂O₃ revealed spherical particles of 30 nm and platelets of 70 nm, respectively. The XRD analysis of NiO– Al₂O₃ composite sintered at 900 °C showed presence of cubic NiO and rhombohedral α- Al₂O₃ which were chemically stable. However, above 1200 °C Ni Al₂O₄ started to appear. The conductivity of NiO– Al₂O₃ was the highest in hydrogen (4.3 × 10^–3 S/cm at 600 °C). In biogas, the conductivity was 3.2 × 10^–3S/cm with the activation energy of 0.67 eV. The stability of the composite in biogas was also examined.

Słowa kluczowe

EN

oxides; chemical synthesis; X-ray diffraction; electrical conductivity; microstructure

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2016
• Tom: Vol. 34, No. 2
• Strony: 266--274
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Patil S. P.

• Department of Physics, Shivaji University, Kolhapur, India-416004

autor

Jadhav L. D.

• Electrochemical Energy Materials Laboratory, Department of Physics, Rajaram College, Kolhapur, India-416004

autor

Dubal D. P.

• Catalan Institute of Nanoscience and Nanotechnology, Campus UAB, Spain

autor

Puri V. R.

• Department of Physics, Shivaji University, Kolhapur, India-416004

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.