Efficient Production of Single-Walled Carbon Nanotube Aqueous Dispersion Using Hexahydroxytriphenylene as a Dispersant and Stabilizer
Efficient Production of Single-Walled Carbon Nanotube Aqueous Dispersion Using Hexahydroxytriphenylene as a Dispersant and Stabilizer
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使用六羟基苯并菲作为分散剂和稳定剂高效生产单壁碳纳米管水分散体
DOI：
10.1002/slct.201800473
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发表时间：
2018-06
期刊：
影响因子：
2.1
通讯作者：
Naoki Komatsu
中科院分区：
文献类型：
--
作者：
Gang Liu;Neng Liu;Alej;ro Lo´ pez-Moreno;Ping Zhao;Wubin Dai;Shengwei Shi;Naoki Komatsu
单壁碳纳米管（SWNTs）的分散是促进SWNTs在许多领域实际应用的关键技术之一。在此，我们报告了一种有效的分散剂，2，3，6，7，10，11-六羟基苯并菲，通过非共价官能化分散单壁碳纳米管。典型地，68wt%的初始SWNT（25 mg/L）在低浓度的六羟基苯并菲（25 mg/L）下良好地分散在水中。 为了比较各种分散剂的效率，我们提出了基于摩尔和重量的分散效率指数（分别为m‐和w ‐DEI），其基于所用分散剂的浓度（Cm‐DPSmmol/L或Cw‐DPSmg/L）和分散的单壁碳纳米管的浓度（Cd‐ CNT mg/L）;m‐和w ‐DEI分别定义为Cd‐CNT/ Cm‐ DPS和Cd‐CNT/ Cw‐DPS。虽然生物聚合物显示出比六羟基苯并菲稍好的DEI，但六羟基苯并菲的w-DEI优于我们比较的所有分散剂。例如，六羟基苯并菲的them-和w-DEI比十二烷基苯磺酸钠（SDBS）（SWNT最广泛使用的分散剂之一）的那些好得多，分别好两个和三个数量级。发现2，3，6，7，10，11-六羟基苯并菲和SDBS之间的DEI的巨大差异是由它们与SWNTs络合的缔合常数（Ka）的差异支持的，这是通过最近报道的滴定方法确定的。
Dispersing single‐walled carbon nanotubes (SWNTs) is one of the key technologies for promoting the practical application of SWNTs in many fields. Herein, we report on an efficient dispersant, 2,3,6,7,10,11‐hexahydroxytriphenylene, for dispersing SWNTs through noncovalent functionalization. Typically, 68 wt% of the initial SWNTs (25 mg/L) were well dispersed in water at the low concentration of hexahydroxytriphenylene (25 mg/L). In order to compare the efficiency of various dispersants, we propose mole‐ and weight‐based dispersing efficiency index (m‐ andw‐DEI, respectively) based on the concentration of the dispersant employed (Cm‐DPSmmol/L or Cw‐DPSmg/L) and the concentration of the SWNTs dispersed (Cd‐CNTmg/L);m‐ andw‐DEI are defined as Cd‐CNT/ Cm‐DPSand Cd‐CNT/ Cw‐DPS, respectively. Although a biopolymer shows slightly betterm‐DEI than hexahydroxytriphenylene, thew‐DEI of hexahydroxytriphenylene is better than that of all the dispersants we compared. For example, them‐ andw‐DEI of hexahydroxytriphenylene are much better than those of sodium dodecylbenzenesulfonate (SDBS), one of the most widely used dispersant for SWNTs, by two and three orders of magnitude, respectively. The large difference of the DEI between 2,3,6,7,10,11‐hexahydroxytriphenylene and SDBS is found to be supported by the difference in their association constants (Ka) for the complexation with SWNTs, which were determined by the recently reported titration method.
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影响因子：
1.6
作者：
Nakashima, N;Tomonari, Y;Murakami, H
通讯作者：
Murakami, H
影响因子：
2.8
作者：
Murakami, H;Nomura, T;Nakashima, N
通讯作者：
Nakashima, N
影响因子：
1.5
作者：
Tatsuhiro Yamamoto;Y. Miyauchi;Jin Motoyanagi;T. Fukushima;T. Aida;Masaru Kato;S. Maruyama
通讯作者：
Tatsuhiro Yamamoto;Y. Miyauchi;Jin Motoyanagi;T. Fukushima;T. Aida;Masaru Kato;S. Maruyama
影响因子：
3.9
作者：
Oh, Hyunkyu;Sim, Jinsook;Ju, Sang-Yong
通讯作者：
Ju, Sang-Yong
影响因子：
4
作者：
Yanlin Liu;Jiyu He;Rongjie Yang
通讯作者：
Yanlin Liu;Jiyu He;Rongjie Yang