MnO2-Based Thermopower Wave Sources with Exceptionally Large Output Voltages
| Autor: | Rodney Weber, David D. Yao, Kourosh Kalantar-zadeh, Sivacarendran Balendhran, Pyshar Yi, Serge Zhuiykov, Sharath Sriram, Michael S. Strano, Sumeet Walia, Muthu Pannirselvam, Madhu Bhaskaran |
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| Rok vydání: | 2013 |
| Předmět: |
business.industry
High voltage Thermoelectric materials Surfaces Coatings and Films Electronic Optical and Magnetic Materials General Energy Electricity generation Seebeck coefficient Thermoelectric effect Optoelectronics Physical and Theoretical Chemistry business Energy source Power density Voltage |
| Zdroj: | The Journal of Physical Chemistry C. 117:9137-9142 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp401731b |
| Popis: | Miniaturization of conventional energy sources has so far proven to be a cumbersome process. A recently developed concept of thermopower waves has shown tremendous potential to reduce the dimensions of power sources while maintaining their energy generation capabilities. We demonstrate a tremendous improvement in the output for these thermopower wave-based energy generation devices by implementing manganese dioxide (MnO2) as the core thermoelectric material. In this work, the thermoelectric MnO2 layer is used as a pathway for the propagation of thermopower waves that are generated as a result of an exothermic chemical reaction of a solid fuel (nitrocellulose). Such self-propagating thermopower waves result in exceptionally high voltage output on the order of 1.8 V and a specific power (power-to-mass ratio) on the order of 1.0 kW·kg–1. The output voltage is at least 300% higher than any other thermopower wave system reported so far. |
| Databáze: | OpenAIRE |
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