中文摘要：

一条环境地友好的途径被介绍综合 sulfonated 由使用 L 维生素酸(L-AA ) 和 sulfanilic 酸的芳基重氮基盐减少了 graphene 氧化物(S-rGO ) 。准备条件被优化了以便获得孤立，传导性的 S-rGO，和产品被紫外可见的光谱学描绘了， Fourier 转变了红外线的光谱学，拉曼， X 光检查光电子光谱学和 X 光检查粉末衍射和电气化学的方法。结果证明 S-rGO 表拥有优秀水溶性和高电的电导率，它暗示包含氧的功能的组被搬迁了并且结合 sp ² 网络被恢复了。而且，电气化学的大小表明 S-rGO 的电容的表演与 graphene 氧化物相比被改进了(去) 并且减少的 graphene 氧化物(rGO，由 L-AA 减少了) 。最佳 S-rGO 展出 205 F·g ⁻¹ 和好骑车稳定性的一个特定的电容(3.9% 在 10000 以后减少骑车) ，它比对 graphene 氧化物的那些好(109 F·g ⁻¹ 并且减少 6.6% 在 10000 个周期以后) 并且 rGO (139 F·g ⁻¹ 并且减少 11.3% 在 10000 骑车以后) 。这条途径证明一条新线路改进 rGO 的电容的性质。

英文摘要：

An environmentally friendly approach is presented to synthesize sulfonated reduced graphene oxide （S-rGO） by using L-ascorbic acid （L-AA） and aryl diazonium salt of sulfanilic acid. The preparation conditions have been optimized in order to obtain isolated and conductive S-rGO, and the products have been characterized by Ultraviolet-Visible spectroscopy, Fourier transformed infrared spectroscopy, Raman, X-ray photoelectron spectroscopy and X-ray powder diffraction and electrochemical methods. The results show that the S-rGO sheets possess excellent water-solubility and high electrical conductivity, which implies that the oxygen-containing functional groups have been removed and conjugated sp2 network has been restored. What＇s more, the electrochemical measurements reveal that the capacitive performance of the S-rGO has been improved compared with the graphene oxide （GO） and the reduced graphene oxide （rGO, reduced by L-AA）. The optimum S-rGO exhibits a specific capacitance of 205 F·g^-1 and good cycling stability （3.9% decreasing after 10000 cycles）, which are better than those for graphene oxide （109 F·g^-1 and decreasing 6.6% after 10000 cycles） and rGO （139 F·g^-1 and decreasing ll.3% after 10000 cycling）. This approach proves a new route to improve the capacitive properties of rGO.