摘要
这里，我们报导一条新途径为很好驱散的做 N 的 mesoporous 碳 nanospheres (MCN ) 的合成经由碳来源(多巴胺) 和硅石来源(tetraethyl orthosilicate ) 的 copolymerization 作为 soft-to-hard templating 策略参考了，它为电气化学的 supercapacitor 展出高效。这个方法分别地克服不受管束的 dispersity 和软模板或难模板的方法的复杂过程的缺点。而且，综合 MCN 特征在一个壶合成期间由高贵金属的 nanoparticles 充实 heteroatom 做 N 和容易的 functionalization。所有上述字符在许多应用程序使同样准备的 MCN 成为一个有希望的平台。表明综合做氮的 MCN 的适用性，这材料为高效的电气化学的 supercapacitor 作为一个电极被采用了，它显示出 223 和 140 的一个电容 ? 在 0.5 和 10 的当前的密度的 F/g ? 在 1 的 A/g ? mol/L KOH 电解质分别地。
Here we report a new approach referred as ＂soft- to-hard templating＂ strategy via the copolymerization of carbon source （dopamine） and silica source （tetraethyl orthosilicate） for the synthesis of well dispersed N-doped mesoporous carbon nanospheres （MCNs）, which exhibit high performance for electrochemical supercapacitor. This method overcomes the shortcoming of uncontrolled dis- persity and complicated procedures of soft- or hard-tem- plating methods, respectively. Moreover, the synthesized MCNs feature enriched heteroatom N-doping and easy functionalization by noble-metal nanoparticles during the one-pot synthesis. All the above characters make the as- prepared MCNs a promising platform in a variety of applications. To demonstrate the applicability of the syn- thesized nitrogen-doped MCNs, this material has been employed as an electrode for high-performance electro- chemical supercapacitor, which shows a capacitance of 223 and 140 F/g at current densities of 0.5 and 10 A/g in 1 mol/L KOH electrolyte, respectively.
基金
This work was supported by the National Basic Research Program of China （2013CB933200）, the National High Technology Research and Development Program of China （2012AA062703）, the National Natural Science Foundation of China （21177137） and the Youth Innovation Promotion Association CAS （2012200）.
