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| 单分散的酚醛树脂和碳微球作为超级电容器电极材料的研究 |
| Monodisperse Resorcinol-Formaldehyde (RF) Resin and Carbon Microspheres Electrode Material for Supercapacitors |
| 投稿时间：2013-04-07 修订日期：2013-04-07 |
| DOI： |
| 中文关键词: 酚醛树脂凝胶 碳微球 聚合物 电极材料 超级电容器 |
| 英文关键词: Colloidal RF spheres Carbon microspheres Polymers Electrode material Supercapacitor |
| 基金项目: |
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| 中文摘要: |
| 以氨水作为催化剂,间苯二酚和甲醛为前驱体制备单分散酚醛树脂微球和碳微球。采用循环伏安法,电化学交流阻抗和恒电流充放电等方法对碳微球的电化学性能进行测试。研究表明：在扫描速率为1 mV s-1时,比电容为175.9 F g-1,电阻为0.5 Ω,循环500圈后仍保持94.4%的电容量。以上结果表明,酚醛树脂和碳微球作为超级电容器的电极材料具有降低离子运输阻力和提高超级电容器稳定性的功能。 |
| 英文摘要: |
| Monodisperse resorcinol-formaldehyde (RF) resin and carbon microspheres are obtained using ammonia (NH3.H2O) as catalyst, resorcinol and formaldehyde as precursor. The obtained RF resin microspheres and Carbon microspheres are evaluated as the supercapacitor electrode material with several analytical tools such as Cyclic Voltammetry (CV), Electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge measurement. It presents the low resistance value (R) of 0.5 Ω in 6 mol L-1 KOH electrolyte. The maximum specific capacitance of the electrode measured from cyclic voltammetry is up to 175.9 F g-1at a scan rate of 1 mV s-1 .The specific capacitance only decays 5.6 % after 500 cycles, which indicates that the sample possesses excellent cycle durability. The present study clearly indicates that highly monodispersity carbon microspheres from RF resin are electroactive materials with reduced mass transport resistance and improved supercapacitor performance reliability. |
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