Conductive diamond hollow fiber membranes
Conductive diamond hollow fiber membranes
复制标题
DOI：
10.1016/j.elecom.2009.06.027
复制
发表时间：
2009-08
影响因子：
5.4
通讯作者：
T. Kondo;Sang Chul Lee;K. Honda;T. Kawai
中科院分区：
文献类型：
--
作者：
T. Kondo;Sang Chul Lee;K. Honda;T. Kawai
掺硼金刚石中空纤维膜（BDD-HFM）是一种新型多孔导电金刚石。 BDD-HFM 是通过将 BDD 多晶薄膜沉积到由石英纤维组成的石英过滤器基板上，然后在 HF/HNO3 水溶液中蚀刻基板而获得的。横截面扫描电子显微镜（SEM）观察显示BDD中空纤维的内径和壁厚分别在0.4-2和0.2-2μm范围内。 BDD-HFM 电极在 0.1M H2SO4 中表现出相对较大的双层电容（约 13Fg−1）。使用包含传输线模型的等效电路模型来模拟电化学交流阻抗特性，该模型表明了多孔电极材料的特性。
Boron-doped diamond hollow fiber membrane (BDD–HFM) was fabricated as a novel type of porous conductive diamond. BDD–HFM was obtained by deposition of BDD polycrystalline film onto a quartz filter substrate consisting of quartz fibers, followed by etching of the substrate in HF/HNO3aqueous solution. Cross-sectional scanning electron microscope (SEM) observation showed the inner diameter and wall thickness of the BDD hollow fibers were in the range of 0.4–2 and 0.2–2μm, respectively. The BDD–HFM electrode exhibited a relatively large double-layer capacitance (ca. 13Fg−1) in 0.1M H2SO4. Electrochemical AC impedance properties were simulated using an equivalent circuit model containing a transmission line model, which indicated characteristics of a porous electrode material.