Efficient synthesis of alkynyl carbon materials derived from CaC2 through solvent-free mechanochemical strategy for supercapacitors

The synthesis of new carbonaceous electrode materials for supercapacitors and the discovery of efficient techniques for the CaC 2 activation are meaningful subjects. In this study, unique alkynyl carbon materials (ACMs) were effectively synthesized through solvent-free mechanochemical reactions of C...

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Bibliographic Details
Published inSN applied sciences Vol. 1; no. 2; p. 195
Main Authors Li, Yangyang, Li, Yingjie, He, Xiaojun, Gu, Jing, Yu, Moxin, Li, Wenfeng, Li, Chunxi
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.02.2019
Springer Nature B.V
Subjects
Adsorption
Applications
Applied and Technical Physics
Carbon
Chemistry/Food Science
Earth Sciences
Electrode materials
Electrodes
Engineering
Environment
Fundamental Properties
Hydrocarbons
Materials Science
Materials Science: 2D Materials: Synthesis
Morphology
Pore size
Raw materials
Research Article
Scanning electron microscopy
Solvents
Spectrum analysis
Supercapacitors
Characterization
Supercapacitors
CaC
Alkynyl carbon materials
Mechanochemistry
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Summary:The synthesis of new carbonaceous electrode materials for supercapacitors and the discovery of efficient techniques for the CaC 2 activation are meaningful subjects. In this study, unique alkynyl carbon materials (ACMs) were effectively synthesized through solvent-free mechanochemical reactions of CaC 2 with C 2 Cl 6 or C 6 Br 6 . Their components and structure were comprehensively characterized, and their supercapacitor performances were examined in detail. The mechanochemistry has proved to be an efficient and targeted technique for the reactive activation of CaC 2 . The sp -C dominated ACMs feature interconnected framework with hierarchical pores, tunable structures, and low cost of raw materials. As electrodes for supercapacitors, the ACMs exhibit high specific capacitances in the range of 48.4–132.4 F g −1 with excellent electrical conductivities and outstanding cycling stabilities. This work provides an efficient, green, and cost-effective strategy for the synthesis of ACMs from wildly available precursors, and a significant assistance for the renaissance of CaC 2 chemistry. Graphical abstract
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ISSN:2523-3963
2523-3971
DOI:10.1007/s42452-019-0205-1