Hybrid Energy Cell for Degradation of Methyl Orange by Self-Powered Electrocatalytic Oxidation
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- 作者：Ya Yang ; Hulin Zhang ; Sangmin Lee ; Dongseob Kim ; Woonbong Hwang ; Zhong Lin Wang
- 刊名：Nano Letters
- 出版年：2013
- 出版时间：February 13, 2013
- 年：2013
- 卷：13
- 期：2
- 页码：803-808
- 全文大小：455K
- 年卷期：v.13,no.2(February 13, 2013)
- ISSN：1530-6992
文摘
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.