State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
ACS Appl Mater Interfaces. 2017 Feb 1;9(4):3895-3901. doi: 10.1021/acsami.6b13610. Epub 2017 Jan 19.
The discovery of new carbon materials and the reactive activation of CaC are challenging subjects. In this study, a series of alkynyl carbon materials (ACMs) were synthesized by the interfacial mechanochemical reaction of CaC with four typical polyhalogenated hydrocarbons. Their properties and structures were characterized, and their electrochemical performances were examined. The reaction was rapid and efficient arising from the intense mechanical activation of CaC. The ACMs are micro-mesoporous materials with distinct layered structure, specific graphitization degree, and clear existence of sp-C. In addition, the ACMs exhibit high specific capacitance in the range of 57-133 F g and thus can be ideal candidates for active materials used in supercapacitors. The results may imply an alternative synthesis of carbon allotropes, as well as an efficient approach for the activation of CaC.
新型碳材料的发现和 CaC 的反应性活化是具有挑战性的课题。在这项研究中，通过 CaC 与四种典型的多卤代烃的界面机械化学反应，合成了一系列炔基碳材料 (ACMs)。对它们的性质和结构进行了表征，并考察了它们的电化学性能。由于 CaC 的剧烈机械活化，反应快速高效。ACMs 是具有明显层状结构、特定石墨化程度和清晰 sp-C 存在的微孔-介孔材料。此外，ACMs 在 57-133 F g 的范围内表现出高比电容，因此可用作超级电容器中活性材料的理想候选材料。这些结果可能暗示了碳同素异形体的另一种合成方法，以及 CaC 有效活化的方法。
