COA of Formula: C8H15BF4N2In 2019 ,《Fabrication of Hierarchical Porous Carbon Frameworks from Metal-Ion-Assisted Step-Activation of Biomass for Supercapacitors with Ultrahigh Capacitance》 appeared in ACS Sustainable Chemistry & Engineering. The author of the article were Chang, Chengshuai; Wang, He; Zhang, Yunqiang; Wang, Shulan; Liu, Xuan; Li, Li. The article conveys some information:
Advancement in the application of biomass-derived carbon is viewed as one of the most important drivers of sustainable and renewable technologies for energy storage. High-performance biochar with a well-defined structure is extremely attractive as a supercapacitor electrode material. Herein, carbon with an ultrahigh capacitance of 682 F/g at 0.2 A/g for biochar materials and remarkable cycling stability was synthesized from Chinese parasol fluff (CPF). Three-dimensional interconnected hierarchical porous carbon was fabricated via a feasible metal-ion-assisted step-activation method from the biomass precursor. CO2 was used to treat the carbonaceous material from CPF after molten KOH activation for pore structure tuning, while Co2+ was selected as the metal ion additive for directing graphitization. In addition to the extremely high capacitance, the as-synthesized carbon also delivered an energy d. of 46.38 W h/kg at a power d. of 300 W/kg in 1-butyl-3-Me imidazolium tetrafluoroborate/acetonitrile (BMIMBF4/AN) electrolyte, which is much better than for most reported biochar materials and about 10 times better than for com. supercapacitors. The current work points out an excellent sustainable source for fabrication of high-performance electrode materials and, more importantly, a feasible design strategy route for improvement of the electrochem. performance of energy storage devices. The experimental part of the paper was very detailed, including the reaction process of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6COA of Formula: C8H15BF4N2)
3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. COA of Formula: C8H15BF4N2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem