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https://hdl.handle.net/2440/115854
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Type: | Journal article |
Title: | Characterization of NiO-Al₂O₃ composite and its conductivity in biogas for solid oxide fuel cell |
Other Titles: | Characterization of NiO-Al(2)O(3) composite and its conductivity in biogas for solid oxide fuel cell |
Author: | Patil, S. Jadhav, L. Dubal, D. Puri, V. |
Citation: | Materials Science-Poland, 2016; 34(2):266-274 |
Publisher: | De Gruyter Open |
Issue Date: | 2016 |
ISSN: | 2083-1331 2083-134X |
Statement of Responsibility: | Sarika P. Patil, L.D. Jadhav, D.P. Dubal, V.R. Puri |
Abstract: | 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 NiAl₂O₄ 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 × 10⁻³ S/cm with the activation energy of 0.67 eV. The stability of the composite in biogas was also examined. |
Keywords: | Oxides; chemical synthesis; X-ray diffraction; electrical conductivity; microstructure |
Rights: | © Wroclaw University of Technology. |
DOI: | 10.1515/msp-2016-0045 |
Published version: | http://dx.doi.org/10.1515/msp-2016-0045 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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