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. © 2013 American Chemical Society.
CITATION STYLE
Walia, S., Balendhran, S., Yi, P., Yao, D., Zhuiykov, S., Pannirselvam, M., … Kalantar-Zadeh, K. (2013). MnO2-based thermopower wave sources with exceptionally large output voltages. Journal of Physical Chemistry C, 117(18), 9137–9142. https://doi.org/10.1021/jp401731b
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