摘要
本文研究了不同电极材料对含水花岗岩阻抗谱的影响。在相同实验条件下,分别用铜、含氧化膜的钛片及钛/二氧化钛纳米管作为电极材料进行交流阻抗实验,结果表明,电极材料主要对阻抗谱的低频有影响,其中钛/二氧化钛纳米管电极的微观结构增大了其与岩石的接触面积,使有效导电通路增加,从而减小了测试阻抗,在同样的测试频率范围内得到更丰富的阻抗信息。
In this paper,the impact of various electrode materials on the EIS of granite rock was studied.In the same experimental condition,the Cu,Ti and Ti/TiO2 nanotubes were used as electrodes for AC impedance experiments.The results indicated that the electrode materials had mainly effects on the low frequency impedance of hydrous granite,the microstructure of the Ti/TiO2 nanotubes enlarged the contact area between the rock and electrode,increased the effective conductive path,and reduced the test impedance,so richer impedance information was obtained within the same testing frequency range.
出处
《化学通报》
CAS
CSCD
北大核心
2011年第12期1126-1130,共5页
Chemistry
基金
地震动力学国家重点实验室项目(LED2009B03)资助
