机械化学辅助合成用于超级电容器的分级多孔碳。
Mechanochemistry-assisted synthesis of hierarchical porous carbons applied as supercapacitors.
作者信息
Leistenschneider Desirée, Jäckel Nicolas, Hippauf Felix, Presser Volker, Borchardt Lars
机构信息
Institute of Inorganic Chemistry, Technische Universität Dresden, Dresden, Germany.
INM - Leibniz Institute for New Materials & Saarland University, Saarbrücken, Germany.
出版信息
Beilstein J Org Chem. 2017 Jul 6;13:1332-1341. doi: 10.3762/bjoc.13.130. eCollection 2017.
A solvent-free synthesis of hierarchical porous carbons is conducted by a facile and fast mechanochemical reaction in a ball mill. By means of a mechanochemical ball-milling approach, we obtained titanium(IV) citrate-based polymers, which have been processed via high temperature chlorine treatment to hierarchical porous carbons with a high specific surface area of up to 1814 m g and well-defined pore structures. The carbons are applied as electrode materials in electric double-layer capacitors showing high specific capacitances with 98 F g in organic and 138 F g in an ionic liquid electrolyte as well as good rate capabilities, maintaining 87% of the initial capacitance with 1 M TEA-BF in acetonitrile (ACN) and 81% at 10 A g in EMIM-BF.
通过球磨机中简便快速的机械化学反应，进行了无溶剂合成分级多孔碳。借助机械化学球磨方法，我们获得了柠檬酸钛（IV）基聚合物，该聚合物经高温氯处理后转化为具有高达1814 m²/g的高比表面积和明确孔结构的分级多孔碳。这些碳被用作双电层电容器的电极材料，在有机电解质中表现出98 F/g的高比电容，在离子液体电解质中为138 F/g，并且具有良好的倍率性能，在乙腈（ACN）中1 M TEA-BF₄时保持初始电容的87%，在EMIM-BF₄中10 A/g时保持81%。
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