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Graphene oxide/low ammonia NRL nanocomposite-based electrode in various electrolyte concentrations: electrical properties and capacitive behavior for supercapacitor
Journal of Rubber Research ( IF 1.3 ) Pub Date : 2020-11-04 , DOI: 10.1007/s42464-020-00066-4
M. D. Nurhafizah , I. Sabar , A. B. Suriani , A. Mohamed

Here, we report a fast fabrication process of nanocomposites with better electrical properties by intermixing graphene oxide (GO) and low ammonia natural rubber latex (NRL) polymer via the one-step method (~ × 10–5 to × 10–7 S cm−1). In comparison, the nanocomposite synthesized by the two-step method demonstrated lower electrical properties which were calculated to be × 10–7 S cm−1. Obviously, the increase in the electrolyte concentrations from 0.01 to 0.1 M SDS did not influenced the electrical conductivity which means the fabrication process also played a role in a successful dispersion of GO in NRL polymer. The electrical testing was carried out by four-point probe instrument and cyclic voltammograms in the range of 0–1 V were measured at various scan rates for all samples using a computerized potentiostat–galvanostat equipped with Gamry software (Gamry potentiostat series-G750, USA). Among all nanocomposite samples, 0.01 M SDS-GO/NRL nanocomposite synthesized via one-step method successfully showed higher capacitance performance which found to be 107 F g−1.



中文翻译:

各种电解质浓度下的氧化石墨烯/低氨NRL纳米复合材料基电极:超级电容器的电性能和电容特性

在这里,我们通过一步法(〜×10 –5至×10 –7  S cm )将氧化石墨烯(GO)和低氨天然橡胶胶乳(NRL)聚合物混合在一起,从而报告了一种具有更好电性能的纳米复合材料的快速制造工艺-1)。相比之下,通过两步法合成的纳米复合材料显示出较低的电性能,其计算值为×10 –7  S cm -1。显然,电解质浓度从0.01 M SDS增加到0.1 M SDS不会影响电导率,这意味着制造过程也对GO在NRL聚合物中的成功分散起到了作用。通过四点探针仪进行电气测试,并使用配备有Gamry软件的计算机恒电位仪-恒电流仪(Gamry恒电位仪系列-G750,美国)以各种扫描速率对所有样品测量0-1 V范围内的循环伏安图)。在所有纳米复合材料样品中,通过一步法合成的0.01 M SDS-GO / NRL纳米复合材料成功显示出更高的电容性能,为107 F g -1

更新日期:2020-11-06
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