Preparation and properties of cellulose nanofiber-reduced graphene oxide/polyaniline composite aerogels as flexible electrodes
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摘要: 利用高长径比的纤维素纳米纤丝（CNF）与片层结构的氧化石墨烯（GO）形成的CNF-GO复合水凝胶经抗坏血酸还原制备出CNF-还原氧化石墨烯（rGO）复合水凝胶材料。通过冷冻干燥法得到CNF-rGO复合气凝胶，并进一步通过苯胺单体在CNF-rGO复合气凝胶的孔道内原位聚合制备出CNF-rGO/聚苯胺（PANI）气凝胶柔性电极复合材料。研究了不同苯胺、CNF和GO的质量比对CNF-rGO/PANI气凝胶柔性电极复合材料的结构形貌和电化学性能的影响。结果表明，苯胺原位聚合后所得CNF-rGO/PANI复合气凝胶仍具有紧密的三维多孔网络结构。与rGO/PANI气凝胶电极复合材料相比，CNF-rGO/PANI气凝胶电极复合材料具有更理想的电容行为。当CNF与GO质量比为60∶40，PANI添加量为0.1 mol时，CNF-rGO/PANI气凝胶电极复合材料比电容可达85.9 Fg-1，且其电化学性能几乎不受弯曲程度的影响，展现出了良好的柔韧性和电化学性能。Abstract: The cellulose nanofiber-reduced graphene oxide (CNF-rGO) composite hydrogel was prepared by ascorbic acid reduction of CNF-graphene oxide (GO) composite hydrogel which was obtained from CNF with high aspect ratio and GO with nanosheet. By freeze-drying method, CNF-rGO composite aerogel was obtained. By the in situ polymerization of aniline monomer, CNF-rGO/polyaniline (PANI) composite aerogels as flexible electrode materials was prepared. The effects of different dosage mass ratio of aniline, CNF and rGO on the morphology, structure and electrochemical properties of CNF-rGO/PANI aerogels electrode composites were studied. The results show that the CNF-rGO/PANI composite aerogels still have relatively close 3D network structure after in situ polymerization of aniline. Compared with rGO/PANI aerogel eletrode composites, the CNF-rGO/PANI aerogel eletrode composites have more excellent capacitance behavior. When the mass ratio of CNF and GO is 60:40 and the amount of PANI is 0.1 mol, the specific capacitance of the CNF-rGO/PANI aerogel electrode composites is 85.9 Fg-1, and its electrochemical properties are hardly affected by bending degree. So, the CNF-rGO/PANI aerogel eletrode composites show good electrochemical performance and excellent flexibility.
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Keywords:
- flexible electrode composites /
- cellulose nanofiber /
- polyaniline /
- graphene /
- composite aerogels
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期刊类型引用(8)
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2. 张涛，李梦扬，项钰洲，马培林，岳金权. RGO/CNTs/CNF柔性电极的制备及表征. 中国造纸. 2023(07): 10-19 . 百度学术
3. 王韵，胡少恒，邓阿申，刘宇杰，夏燎原. 基于纳米纤维素/多壁碳纳米管气凝胶和泡沫镍构筑的三维复合材料及其电容性能. 复合材料学报. 2023(09): 5350-5358 . 本站查看
4. 宋慧敏，王全璐，李廷希，韩永芹. 3D石墨烯/导电聚合物气凝胶复合材料在超级电容器中的研究进展. 化学推进剂与高分子材料. 2022(01): 19-24+31 . 百度学术
5. 王欢欢，陈玺，武晨光，赵晓明. 三维石墨烯多孔复合材料的吸波性能及研究进展. 现代纺织技术. 2021(05): 13-25 . 百度学术
6. 陈京环，刘金刚，侯磊磊，苏艳群，张瑞娟，许泽红. 羧乙基微纤化纤维素/石墨烯/聚苯胺复合膜的制备与表征. 中国造纸. 2021(11): 19-28 . 百度学术
7. 顾升，王雪，徐国祺. 基于界面相互作用构建纳米纤维素-羧基化碳纳米管-石墨/聚吡咯柔性电极复合材料. 复合材料学报. 2020(09): 2105-2116 . 本站查看
8. 崔萌，信宇航，宋蕊，孙启元，高迪. 羧甲基纤维素/氧化石墨烯复合电化学生物传感器制备及其对维生素B_6的检测性能研究. 吉林化工学院学报. 2019(11): 63-70+85 . 百度学术
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