标题： 当支持电解质相关 - 通过在碱金属和碱土金属氯化物中的电化学还原调节氧化石墨烯的电容响应 显示英文标题

标题： When supporting electrolyte matters - tuning capacitive response of graphene oxide via electrochemical reduction in alkali and alkaline earth metal chlorides

摘要： 石墨烯氧化物（GO）的电荷储存性能的调节对于能量转换应用至关重要。 在这里我们表明，GO的电化学还原对溶液中存在的阳离子非常敏感。 在碱金属氯化物溶液中，GO在较低的电位下被还原，而不是在碱土金属氯化物中。 在还原过程中，GO的电容从10增加到70倍。 还原后的GO的最大电容在65到130 F g-1之间，具体取决于电解质和导电添加剂的存在。 我们认为，在还原过程中阳离子与GO的氧官能团的不同相互作用是观察到的效果的原因。 显示英文摘要

摘要： The ability to tune charge storage properties of graphene oxide (GO) is of utmost importance for energy conversion applications. Here we show that electrochemical reduction of GO is highly sensitive to the cations present in the solution. GO is reduced at lower potential in alkali metal chloride solutions than in alkaline earth metal chlorides. During the reduction, capacitance of GO increases from 10 to 70 times. Maximum capacitances of reduced GO are between 65 and 130 F g-1, depending on the electrolyte and the presence of conductive additive. We propose that different interactions of cations with oxygen functional groups of GO during the reduction are responsible for the observed effect.