title: Synthesis and Supercapacitor Application of Alkynyl Carbon Materials Derived from CaC2and Polyhalogenated Hydrocarbons by Interfacial Mechanochemical Reactions.
abstract: The discovery of new carbon materials and the reactive activation of CaC2are challenging subjects. In this study, a series of alkynyl carbon materials (ACMs) were synthesized by the interfacial mechanochemical reaction of CaC2with 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 CaC2. 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-1and 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 CaC2.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Yingjie
authors.identifier: http://orcid.org/0000-0001-6439-211X
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Qingnan
authors.initials: Q
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Wenfeng
authors.initials: W
authors.lastname: Li
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Meng
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Yingzhou
authors.initials: Y
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, and ‡College of Chemical Engineering, Beijing University of Chemical Technology , Beijing 100029, P.R. China.
authors.forename: Chunxi
authors.initials: C
authors.lastname: Li
keywords: CaC2; alkynyl carbon materials; mechanochemistry; polyhalogenated hydrocarbons; supercapacitors