| Thermoelectric properties of nanocrystalline Ca(3-x)Cu(x)Co4O9 (0 < or = x < or = 0.32) for power generation. | |
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MedLine Citation:
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PMID: 21456279 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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We successfully synthesized nano-sized Ca(3-x)Cu(x)Co4O9 (0 < or = x < or = 0.32) powders by solution combustion process. Plate-like grains and porous structure were observed in the sintered Ca(3-x)Cu(x)Co4O9 ceramics. The sintered Ca(3-x)Cu(x)Co4O9 showed a monoclinic symmetry. The electrical conductivity of the Ca(3-x)Cu(x)Co4O9 increased with increasing temperature, indicative of a semiconducting behavior. The added Cu led to a significant increase in the electrical conductivity. The Seebeck coefficient of the Cu-added Ca(3-x)Cu(x)Co4O9 was much higher than that of the Cu-free Ca3Co4O9. The highest power factor (9.99 x 10(-4) Wm(-1)K-2) was obtained for Ca2.76Cu0.24Co4O9 at 800 degrees C. |
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Authors:
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S W Nam; Y S Lim; S M Choi; W S Seo; K Park |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of nanoscience and nanotechnology Volume: 11 ISSN: 1533-4880 ISO Abbreviation: J Nanosci Nanotechnol Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-04-01 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101088195 Medline TA: J Nanosci Nanotechnol Country: United States |
Other Details:
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Languages: eng Pagination: 1734-7 Citation Subset: IM |
Affiliation:
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Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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