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| 氧化热处理对不锈钢基碳纳米管结构及其电化学检测性能的影响 |
| Effect of oxidizing heat-treatment on the structural and electrochemical properties of carbon nanotube on stainless steel |
| 投稿时间：2016-12-15 |
| DOI： |
| 中文关键词: 碳纳米管 不锈钢 化学气相沉积 氧化热处理 电化学检测 尿酸 |
| 英文关键词: carbon nanotube stainless steel chemical vapor deposition oxidizing heat-treatment electrochemical detection uric acid |
| 基金项目:国家自然科学基金资助项目(51171133,2)；湖北省自然科学基金重点项目(2015CFA128). |
| 作者 | 单位 | E-mail | | 董姗 | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081 | 1264364771@qq.com | | 程佳瑞 | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081
普渡大学工业工程学院,美国 西拉法叶市,47907 | | | 陈荣生 | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081 | | | 倪红卫 | 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北 武汉,430081 | |
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| 中文摘要: |
| 采用化学气相沉积法,以不锈钢基体中的Fe、Ni等成分为催化剂,直接在其表面生长碳纳米管并进行氧化热处理。采用场发射扫描电镜观察制备的碳纳米管形貌及尺寸,并采用接触角测量方法检测试样亲水性质,结合透射电镜、拉曼光谱和XPS检测分析氧化热处理引起的碳管形貌和特征差异,最后考察尿酸在碳纳米管电极上的电化学响应。结果表明,氧化热处理使碳纳米管平滑的表面变得粗糙,暴露出了更多的边平面结构,并且碳纳米管从疏水变为超亲水状态,使其在电化学反应过程中电极表面能够更好地与溶液中的物质接触,有利于材料电化学性能的提高；以经过氧化热处理的碳纳米管为电极,能够在大量抗坏血酸存在的条件下选择性地测定尿酸。 |
| 英文摘要: |
| Using Fe, Ni and other elements in stainless steel as catalysts, carbon nanotubes were fabricated directly on stainless steel by chemical vapor deposition and heat treatment. The morphology and size of carbon nanotubes were characterized by field emission scanning electron microscope. The contact angle was used to test the hydrophilic property of the sample and analyze in detail the differences of carbon nanotubes in morphology and characteristics caused by heat treatment with the aid of transmission electron microscopy, Raman and XPS. Finally, the electrochemical response of uric acid at the carbon nanotube electrode was investigated. Results show that heat treatment roughens the smooth surface of carbon nanotubes, exposes more of the edge plane structure, and transfers carbon nanotubes from hydrophobic to hydrophilic. As a result, in the process of electrochemical reaction, the surface of carbon nanotube electrode can better contact the solution, which is beneficial to the improvement of the electrochemical properties. After heat treatment, the electrode can selectively determinate uric acid in the presence of large amounts of ascorbic acid. |
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