Electroanalytical Chemistry with Carbon Film Electrodes and Micro and Nano-Structured Carbon Film-Based Electrodes
Electroanalytical Chemistry with Carbon Film Electrodes and Micro and Nano-Structured Carbon Film-Based Electrodes
复制标题
碳膜电极和微纳米结构碳膜电极的电分析化学
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
O. Niwa
中科院分区：
文献类型：
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作者：
O. Niwa
综述了近年来碳膜电极和微纳米结构碳膜电极在电分析中的应用研究进展。采用热化学气相沉积、有机聚合物热处理等方法制备了类石墨碳薄膜。用等离子体化学气相沉积法制备了具有宽电位窗口的高稳定性金刚石膜电极，并用于电分析。介绍了一种由电子回旋共振（ECR）沉积的含有大量sp3键的碳膜组成的碳膜。该膜可以检测具有较高氧化电位的分析物或氧化后污染电极表面的电活性物质。ECR碳膜可以在低温下沉积，并且不掺杂就具有导电性。为了满足提高检测限和小体积样品电化学检测器稳定性的要求，人们采用光刻和干法刻蚀的方法制备了类石墨碳膜，用于构建各种微电极和微阵列电极。例如，当用作高效液相色谱（HPLC）和毛细管电泳（CE）的电化学检测器时，制造成叉指阵列（IDA）电极的碳膜对生物化学品如儿茶酚胺具有非常低的检测限。相比之下，含有各种金属纳米颗粒的复合碳膜可用于许多分析物，包括过氧化氢和糖。该薄膜是通过金属和碳的RF共溅射沉积的。这不同于其他制备方法，例如聚合物-金属络合物的热处理或金属颗粒在碳膜上的电镀。所获得的碳膜含有2 - 5 nm的金属颗粒，如Pt、Ni、Cu和Ir。通过分散Pt纳米颗粒的沉淀沉积碳膜，实现了对已知为各种氧化酶酶促反应产物的过氧化氢的高灵敏度和极稳定的检测。相比之下，含有分散的Ni和Cu纳米颗粒的碳膜在碱性溶液中为糖如葡萄糖和乳糖提供高的电催化电流。通过使用该膜作为HPLC的检测电极，可以获得比使用本体金属电极时更低的几种糖的检测限。
The recent development of electroanalysis using carbon film electrodes and micro and nano-structured carbon film based electrodes is reviewed. Graphite-like carbon film was synthesized by various methods such as thermal chemical vapor deposition and the thermolysis of organic polymers. Highly stable diamond film electrodes with a wide potential window have been synthesized by using the plasma CVD process and then employed for electroanalysis. A carbon film consisting of electron cyclotron resonance (ECR) sputter-deposited carbon films containing a large portion of sp 3 bonds was introduced. The film makes it possible to detect analytes with higher oxidation potential or electroactive species that foul the electrode surface after oxidation. ECR carbon film can be deposited at low temperature and is conductive without doping. Graphite-like carbon films have been formed in order to construct various microelectrodes and microarray electrodes by using photolithography and dry etching methods to meet the requirements for improving the detection limit and for miniaturizing electrochemical detectors for small volume samples. For example, carbon film fabricated into an interdigitated array (IDA) electrode has a very low detection limit for biochemicals such as catecholamines when used as an electrochemical detector for high-performance liquid chromatography (HPLC) and capillary electrophoresis (CE). In contrast, composite carbon films containing various metal nanoparticles can be used for many analytes, including hydrogen peroxide and sugars. The films are deposited by the RF co-sputtering of metal and carbon. This is unlike other preparation methods such as the thermolysis of a polymer-metal complex or the electroplating of metal particles onto carbon film. The obtained carbon film contains 2-5 nm metal particles such as Pt, Ni, Cu, and Ir. The highly sensitive and extremely stable detection of hydrogen peroxide, which is known to be the product of various oxidase enzymatic reactions, was achieved with sputter-deposited carbon film in which Pt nano-particles were dispersed. In contrast, carbon films containing dispersed Ni and Cu nanoparticles provide a high electrocatalytic current for sugars such as glucose and lactose in alkaline solution. By using the film as a detection electrode for HPLC, one can obtain a lower detection limit for several sugars than when using bulk metal electrodes.
影响因子：
7.4
作者：
Pihel, K;Walker, QD;Wightman, RM
通讯作者：
Wightman, RM
影响因子：
7.4
作者：
R. A. Wallingford;A. Ewing
通讯作者：
R. A. Wallingford;A. Ewing
影响因子：
7.4
作者：
Woolley, AT;Lao, KQ;Mathies, RA
通讯作者：
Mathies, RA