Electrochemical characteristics of nanoporous carbide-derived carbon materials in various nonaqueous electrolyte solutions
Electrochemical characteristics of nanoporous carbide-derived carbon materials in various nonaqueous electrolyte solutions
复制标题
DOI：
10.1149/1.2135212
复制
发表时间：
2006-01-01
影响因子：
3.9
通讯作者：
Lust, E
中科院分区：
文献类型：
--
作者：
Jänes, A;Lust, E
用循环伏安法和交流阻抗谱研究了碳化物基纳米多孔碳(由TiC、α-碳化硅、Mo2C、Al4C3和B4C制备)在1M不同四烷基四氟硼酸铵溶液中在乙腈、γ-丁内酯和碳酸亚丙酯电解液中的电化学特性。利用液氮温度下的气体吸附测量获得了比表面积、孔径分布、纳米孔体积等特性，这些特性取决于所使用的前驱体碳化物(纳米孔是指2 nm及以下的孔，即根据IUPAC分类的微孔)。根据用于碳合成的前驱体碳化物，确定了理想极化率的范围、串联、并联电容和电阻的值以及其他特性。建立并讨论了纳米多孔材料特性与气相性质的关系。(C)2005年电化学会。
Electrochemical characteristics for the carbide-derived nanoporous carbon (prepared from TiC, alpha-SiC, Mo2C, Al4C3, and B4C) in 1 M various tetraalkyl ammonium tetrafluoroborate in acetonitrile, gamma-butyrolactone, and propylene carbonate electrolyte solutions has been studied using cyclic voltammetry and electrochemical impedance spectroscopy. The specific surface area, pore size distribution, nanopore volume, and other characteristics, dependent on the precursor carbide used (nanopores are pores in the range of 2 nm and below, i.e., micropores according to IUPAC classification), have been obtained using the gas adsorption measurements at temperature of liquid nitrogen. The region of ideal polarizability, values of series, parallel capacitances and resistances, and other characteristics dependent on the precursor carbide used for carbon synthesis have been established. The dependence of nanoporous material characteristics on the gas-phase properties has been established and discussed. (c) 2005 The Electrochemical Society.