多氨基硅烷偶联剂改性碳纤维电场电极的制备及其电化学性能研究  

Preparation and Electrochemical Performance of Carbon Fiber Electric Field Electrode Modified by Silane Coupling Agent with Amino Groups

作　　者：段智为 宰学荣 杨志伟 赵明岗 刘爽 付玉彬[1] DUAN Zhiwei;ZAI Xuerong;YANG Zhiwei;ZHAO Minggang;LIU Shuang;FU Yubin(School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China;College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China)

机构地区：[1]中国海洋大学材料科学与工程学院,山东青岛266100 [2]中国海洋大学化学化工学院海洋化学理论与工程技术教育部重点实验室,山东青岛266100

出　　处：《材料开发与应用》2018年第1期25-35,共11页Development and Application of Materials

基　　金：国防科技创新特区项目资助(17-H863-05-2T-002-040-001)

摘　　要：利用硅烷偶联剂作为改性碳纤维的接枝材料,探索γ-氨乙基氨丙基三甲氧基硅烷(KH-792)改性前后碳纤维电化学性能和电场响应性能的变化。结果表明,改性后碳纤维电极的电化学性能显著提升,比容量为105.96 F/g,是未改性电极的4.58倍,未改性电极存在的低频容抗现象也得到改善。改性后,电极对的极差稳定性提高,日漂移量最低10μV/d,能够很好地响应1 m V/1 m Hz电场信号,电极对的电化学自噪声可低至1.7 n V/rtHz@1 Hz,与未改性电极对的自噪声相比明显降低。The electrochemical performance and electric field response performance of the carbon fiber electrode before and after modification by N-(2-aminoethyl）-3-aminopropyltrimethoxysilane(KH-792） were investigated. Results show that the electrochemical performance of the modified carbon fiber electrode is greatly improved,the specific capacity is 105. 96 F/g,2. 2 times of that of the unmodified,the capacitive reactance at low frequency has been decreased. The modified electrode pair has high stability and its potential difference drifts about 10 μV/d. The electrode pair responds well to the 1 m V/1 m Hz electric field signal applied,and the electrochemical self-noise can be as low as 1. 7 n V/rtHz@ 1 Hz.

关 键 词：碳纤维电极 氨基硅烷偶联剂 表面改性 电化学性能 电场响应 

分 类 号：P756.6[天文地球—海洋科学]