Thermo-electrochemical coupling for room temperature thermocatalysis in pyroelectric ZnO nanorods
| Autor: | Xiaoli Xu, Zheng Wu, Huilin You, Yuntao Xia, Weiqi Qian, Yanmin Jia, Yangqiong Zheng, Yuanting Hong |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Decomposition 0104 chemical sciences Ion Pyroelectricity lcsh:Chemistry chemistry.chemical_compound lcsh:Industrial electrochemistry lcsh:QD1-999 chemistry Chemical engineering Rhodamine B Coupling (piping) Nanorod 0210 nano-technology business Thermal energy lcsh:TP250-261 |
| Zdroj: | Electrochemistry Communications, Vol 81, Iss, Pp 124-127 (2017) |
| ISSN: | 1388-2481 |
| DOI: | 10.1016/j.elecom.2017.06.017 |
| Popis: | A strong thermo-electrochemical coupling in solvothermally-synthesized ZnO nanorods is achieved by combining pyroelectric effects and electrochemical oxidation, and is employed for room temperature thermocatalysis. Under 22–62°C heating–cooling cycles, ZnO nanorods are shown to possess high thermocatalytic activity for Rhodamine B, resulting in ~98.15% decomposition. The active species are shown to be hydroxyl and superoxide radicals generated from the reaction between pyroelectrically-induced charges and the hydroxyl ions/oxygen gas in solution. After being recycled six times, the ZnO shows no decrease in thermocatalytic activity. Thermocatalysis offers a non-toxic, highly efficient, recyclable approach for utilization of thermal energy at room temperature. Keywords: Room temperature thermocatalysis, Thermo-electrochemical coupling, Pyroelectric effect, ZnO nanorods |
| Databáze: | OpenAIRE |
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