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A three-dimensional graphene aerogel containing solvent-free polyaniline fluid for high performance supercapacitors
Nanoscale ( IF 5.8 ) Pub Date : 2017-10-30 00:00:00 , DOI: 10.1039/c7nr06847f Zhaodongfang Gao 1, 2, 3, 4, 5 , Junwei Yang 1, 2, 3, 4, 5 , Jing Huang 4, 5, 6, 7 , Chuanxi Xiong 1, 2, 3, 4, 5 , Quanling Yang 1, 2, 3, 4, 5
Nanoscale ( IF 5.8 ) Pub Date : 2017-10-30 00:00:00 , DOI: 10.1039/c7nr06847f Zhaodongfang Gao 1, 2, 3, 4, 5 , Junwei Yang 1, 2, 3, 4, 5 , Jing Huang 4, 5, 6, 7 , Chuanxi Xiong 1, 2, 3, 4, 5 , Quanling Yang 1, 2, 3, 4, 5
Affiliation
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Conducting polymer based supercapacitors usually suffer from the difficulty of achieving high specific capacitance and good long-term stability simultaneously. In this communication, a long-chain protonic acid doped solvent-free self-suspended polyaniline (S-PANI) fluid and reduced graphene oxide (RGO) were used to fabricate a three-dimensional RGO/S-PANI aerogel via a simple self-assembled hydrothermal method, which was then applied as a supercapacitor electrode. This 3D RGO/S-PANI composite exhibited a high specific capacitance of up to 480 F g−1 at a current density of 1 A g−1 and 334 F g−1 even at a high discharge rate of 40 A g−1. An outstanding cycling performance, with 96.14% of the initial capacitance remaining after 10 000 charging/discharging cycles at a rate of 10 A g−1, was also achieved. Compared with the conventional conducting polymer materials, the 3D RGO/S-PANI composite presented more reliable rate capability and cycling stability. Moreover, S-PANI possesses excellent processability, thereby revealing its enormous potential in large scale production. We anticipate that the solvent-free fluid technique is also applicable to the preparation of other 3D graphene/polymer materials for energy storage.
中文翻译：
包含用于高性能超级电容器的无溶剂聚苯胺流体的三维石墨烯气凝胶
导电的基于聚合物的超级电容器通常具有难以同时获得高比电容和良好的长期稳定性的困难。在这种交流中，长链质子酸掺杂的无溶剂自悬浮聚苯胺（S-PANI）流体和还原型氧化石墨烯（RGO）用于通过简单的自组装来制造三维RGO / S-PANI气凝胶。组装水热法，然后将其用作超级电容器电极。即使在40 A g -1的高放电速率下，这种3D RGO / S-PANI复合材料在1 A g -1和334 F g -1的电流密度下也显示出高达480 F g -1的高比电容。。还实现了出色的循环性能，在以10 A g -1的速率进行1万次充电/放电循环后，剩余的初始电容为96.14％。与常规的导电聚合物材料相比，3D RGO / S-PANI复合材料具有更可靠的速率能力和循环稳定性。此外，S-PANI具有出色的加工性能，从而显示出其在大规模生产中的巨大潜力。我们预计，无溶剂流体技术也可用于制备其他3D石墨烯/聚合物材料以进行能量存储。
更新日期：2017-11-23
中文翻译：
包含用于高性能超级电容器的无溶剂聚苯胺流体的三维石墨烯气凝胶
导电的基于聚合物的超级电容器通常具有难以同时获得高比电容和良好的长期稳定性的困难。在这种交流中，长链质子酸掺杂的无溶剂自悬浮聚苯胺（S-PANI）流体和还原型氧化石墨烯（RGO）用于通过简单的自组装来制造三维RGO / S-PANI气凝胶。组装水热法，然后将其用作超级电容器电极。即使在40 A g -1的高放电速率下，这种3D RGO / S-PANI复合材料在1 A g -1和334 F g -1的电流密度下也显示出高达480 F g -1的高比电容。。还实现了出色的循环性能，在以10 A g -1的速率进行1万次充电/放电循环后，剩余的初始电容为96.14％。与常规的导电聚合物材料相比，3D RGO / S-PANI复合材料具有更可靠的速率能力和循环稳定性。此外，S-PANI具有出色的加工性能，从而显示出其在大规模生产中的巨大潜力。我们预计，无溶剂流体技术也可用于制备其他3D石墨烯/聚合物材料以进行能量存储。
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