Interactions between the reducing agent and graphene oxide (GO) has crucial importance since it affects the performance of the final three-dimensional graphene networks (3D-GNs) as a supercapacitor electrode. In this study, morphological and electrochemical properties of 3D-GNs fabricated through reducing of GO by ethylenediamine (EDA), L-ascorbic acid (AA), glucose (Glu), and citric acid (CA) reducing agents have been determined. It is observed that the pH of GO dispersion, and molecular structure and pK a of reducing agents mainly determine the porosity and electrochemical behavior of 3D-GNs. All the 3D-GNs exhibit better electrochemical performance than those of GO both in acidic and alkaline electrolytes while the EDA-(3D-GN) has the highest specific capacitance values and excellent coulombic efficiency ( ##IMG## [http://ej.iop.org/images/2162-8777/9/7/071003/jssabb192ieqn1.gif] {$\geqslant $} 99) thanks to its mesoporous structures consisting o...

中文翻译：

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还原剂分子结构与3D-石墨烯网络形成过程中氧化石墨烯分散液pH值的相关性

还原剂与氧化石墨烯（GO）之间的相互作用至关重要，因为它影响最终的三维石墨烯网络（3D-GNs）作为超级电容器电极的性能。在这项研究中，已经确定了通过乙二胺（EDA），L-抗坏血酸（AA），葡萄糖（Glu）和柠檬酸（CA）还原剂还原GO制备的3D-GNs的形态和电化学性能。观察到，GO分散体的pH，还原剂的分子结构和pK a主要决定了3D-GNs的孔隙率和电化学行为。在酸性和碱性电解液中，所有3D-GNs的电化学性能都比GO更好，而EDA-（3D-GN）具有最高的比电容值和出色的库伦效率（## IMG ## [http：// ej .iop。