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High-Temperature Thermoelectric Properties of Na(Co0.91Ni0.09)2O4 Fabricated by Solution Combustion Method for Power Generation

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Abstract:

High-quality nano-sized Na(Co0.91Ni0.09)2O4 powders, i.e., 27 nm in average size, were synthesized by the solution combustion route. The magnitude of the electrical conductivity, the Seebeck coefficient, and the power factor for Na(Co0.91Ni0.09)2O4 depended strongly on the fuel used and followed the order of aspartic acid

> glutamic acid > alanine > glycine. The order of the thermoelectric characteristics was consistent with that of the density of Na(Co0.91Ni0.09)2O4. The maximal power factor (1.06×10−3 Wm−1 K-−2) was achieved for aspartic acid-processed Na(Co0.91Ni0.09)2O4 twicesintered at 800 °C. We believe that the solution combustion route was highly effective for fabricating high-efficiency thermoelectric materials.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.5582

Publication date: April 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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