Skutterudite unicouple characterization for energy harvesting applications
Skutterudites are promising thermoelectric materials because of their high figure of merit, ZT, and good thermomechanical properties. This work reports the effective figure of merit, ZT[subscript eff], and the efficiency of skutterudite legs and a unicouple working under a large temperature differen...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Wiley Blackwell
2012
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| Online Access: | http://hdl.handle.net/1721.1/74252 https://orcid.org/0000-0002-3968-8530 |
| _version_ | 1826216788337098752 |
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| author | Muto, Andrew Jerome Chen, Gang Yang, Jian Poudel, Bed Ren, Zhifeng |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Muto, Andrew Jerome Chen, Gang Yang, Jian Poudel, Bed Ren, Zhifeng |
| author_sort | Muto, Andrew Jerome |
| collection | MIT |
| description | Skutterudites are promising thermoelectric materials because of their high figure of merit, ZT, and good thermomechanical properties. This work reports the effective figure of merit, ZT[subscript eff], and the efficiency of skutterudite legs and a unicouple working under a large temperature difference. The p- and n-type legs are fabricated with electrodes sintered directly to the skutterudite during a hot pressing process. CoSi[subscript 2] is used as the electrode for the n-type skutterudite (Yb[subscript 0.35]Co[subscript 4]Sb[subscript 12]) and Co[subscript 2]Si for the p-type skutterudite (NdFe3.5Co0.5Sb12). A technique is developed to measure the ZTeff of individual legs and the efficiency of a unicouple. An ZT[subscript eff] of 0.74 is determined for the n-type legs operating between 52 and 595 °C, and an ZT[subscript eff] of 0.51 for the p-type legs operating between 77 and 600 °C. The efficiency of the p–n unicouple is determined to be 9.1% operating between ∼70 and 550 °C. |
| first_indexed | 2024-09-23T16:53:07Z |
| format | Article |
| id | mit-1721.1/74252 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:53:07Z |
| publishDate | 2012 |
| publisher | Wiley Blackwell |
| record_format | dspace |
| spelling | mit-1721.1/742522022-09-29T22:10:25Z Skutterudite unicouple characterization for energy harvesting applications Muto, Andrew Jerome Chen, Gang Yang, Jian Poudel, Bed Ren, Zhifeng Massachusetts Institute of Technology. Department of Mechanical Engineering Muto, Andrew Muto, Andrew Jerome Chen, Gang Skutterudites are promising thermoelectric materials because of their high figure of merit, ZT, and good thermomechanical properties. This work reports the effective figure of merit, ZT[subscript eff], and the efficiency of skutterudite legs and a unicouple working under a large temperature difference. The p- and n-type legs are fabricated with electrodes sintered directly to the skutterudite during a hot pressing process. CoSi[subscript 2] is used as the electrode for the n-type skutterudite (Yb[subscript 0.35]Co[subscript 4]Sb[subscript 12]) and Co[subscript 2]Si for the p-type skutterudite (NdFe3.5Co0.5Sb12). A technique is developed to measure the ZTeff of individual legs and the efficiency of a unicouple. An ZT[subscript eff] of 0.74 is determined for the n-type legs operating between 52 and 595 °C, and an ZT[subscript eff] of 0.51 for the p-type legs operating between 77 and 600 °C. The efficiency of the p–n unicouple is determined to be 9.1% operating between ∼70 and 550 °C. Center for Clean Water and Clean Energy at MIT and KFUPM United States. Dept. of Energy. Office of Science (Award DE-SC0001299) United States. Dept. of Energy. Office of Basic Energy Sciences (Award DE-FG02-09ER46577) 2012-10-25T17:43:45Z 2012-10-25T17:43:45Z 2012-09 2012-07 Article http://purl.org/eprint/type/JournalArticle 1614-6832 1614-6840 http://hdl.handle.net/1721.1/74252 Muto, Andrew et al. “Skutterudite Unicouple Characterization for Energy Harvesting Applications.” Advanced Energy Materials (2012). https://orcid.org/0000-0002-3968-8530 en_US http://dx.doi.org/ 10.1002/aenm.201200503 Advanced Energy Materials Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley Blackwell Andrew Muto |
| spellingShingle | Muto, Andrew Jerome Chen, Gang Yang, Jian Poudel, Bed Ren, Zhifeng Skutterudite unicouple characterization for energy harvesting applications |
| title | Skutterudite unicouple characterization for energy harvesting applications |
| title_full | Skutterudite unicouple characterization for energy harvesting applications |
| title_fullStr | Skutterudite unicouple characterization for energy harvesting applications |
| title_full_unstemmed | Skutterudite unicouple characterization for energy harvesting applications |
| title_short | Skutterudite unicouple characterization for energy harvesting applications |
| title_sort | skutterudite unicouple characterization for energy harvesting applications |
| url | http://hdl.handle.net/1721.1/74252 https://orcid.org/0000-0002-3968-8530 |
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