School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA.
Nano Lett. 2013 Feb 13;13(2):803-8. doi: 10.1021/nl3046188. Epub 2013 Jan 17.
In general, methyl orange (MO) can be degraded by an electrocatalytic oxidation process driven by a power source due to the generation of superoxidative hydroxyl radical on the anode. Here, we report a hybrid energy cell that is used for a self-powered electrocatalytic process for the degradation of MO without using an external power source. The hybrid energy cell can simultaneously or individually harvest mechanical and thermal energies. The mechanical energy was harvested by the triboelectric nanogenerator (TENG) fabricated at the top by using a flexible polydimethysiloxane (PDMS) nanowire array with diameters of about 200 nm. A pyroelectric nanogenerator (PENG) was fabricated below the TENG to harvest thermal energy. The power output of the device can be directly used for electrodegradation of MO, demonstrating a self-powered electrocatalytic oxidation process.
一般来说，由于阳极上产生超氧羟基自由基，甲橙（MO）可以通过电源驱动的电催化氧化过程进行降解。在这里，我们报告了一种混合能源电池，用于无需外部电源的 MO 电催化降解的自供电电催化过程。该混合能源电池可以同时或单独收集机械能和热能。机械能是通过在顶部使用直径约为 200nm 的柔性聚二甲基硅氧烷（PDMS）纳米线阵列制成的摩擦纳米发电机（TENG）来收集的。在 TENG 下方制造了一个热释电纳米发电机（PENG）来收集热能。该器件的功率输出可直接用于 MO 的电极降解，证明了一种自供电电催化氧化过程。
