| Summary: | 碩士 === 逢甲大學 === 材料科學與工程學系 === 106 === This work is consisted of a number of aspects including (a) production of 3D photonic crystal templates with polystyrene (PS) microspheres on electrically conductive ITO glass substrates via electrophoretic self-assembly (EPSA) technique, (b) design and development of template-mediated technique to fabricate nickel-based photonic crystals (PhCs) in inverse opal structure (IOS) via electrochemical deposition (ECD), (c) preparation of MoS2 film, MoS2@Ni foam and MoS2@Ni-IOS via ECD route, and finally (d) microstructural analysis and electrochemical characterization of the above-mentioned smaples.
The results show that the EPSA is associated with fine tuning the ratio of water to alcohol in the colloidal solution and the photonic crystal templates in perfect ordered microstructure can be achieved with the water-alcohol ratio of 3:7. The thickness of the nickel metal PhCs in invers opal structure (Ni-IOS) was manipulated by adjusting the electrochemical deposition time. A novel MoS2@Ni-IOS composite supercapacitor’s electrode contining nanosheet structure of MoS2 features was achieved by ECD process using current density of -10 mA/cm2.
Electrochemical tests depict that our MoS2@Ni-IOS electrode samples show a rather high specific capacitance of 1,915.6 F/g at currect density of 0.5 A/g during the charging-discharging (CD) test and they can rentain a satisfactory capacitance perfromance up to 90.6% of original level after experiencing 1,000 cycles under CD test at currect density of 1 A/g. In sum, our results indicate that the unique design and manufacturing of MoS2@Ni-IOS and MoS2@Ni foam offered remarkable electrochemical performances, which render a great potential for energy storage applications and development.
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