引用本文:
于浩, 郑笑晨, 刘冉彤, 金君, 简选. 多壁碳纳米管负载铁氰化铜-铁修饰电极的制备及对亚硝酸根的测定[J]. 应用化学,
2014, 31(11): 1336-1344.
doi:
10.3724/SP.J.1095.2014.40045
Citation: YU Hao, ZHENG Xiaochen, LIU Rantong, JIN Jun, JIAN Xuan. Preparation of Copper-iron Hexacyanoferrate Loaded Multi-walled Carbon Nanotubes Modified Electrode for the Determination of Nitrite[J]. Chinese Journal of Applied Chemistry, 2014, 31(11): 1336-1344. doi: 10.3724/SP.J.1095.2014.40045
Citation: YU Hao, ZHENG Xiaochen, LIU Rantong, JIN Jun, JIAN Xuan. Preparation of Copper-iron Hexacyanoferrate Loaded Multi-walled Carbon Nanotubes Modified Electrode for the Determination of Nitrite[J]. Chinese Journal of Applied Chemistry, 2014, 31(11): 1336-1344. doi: 10.3724/SP.J.1095.2014.40045
多壁碳纳米管负载铁氰化铜-铁修饰电极的制备及对亚硝酸根的测定
English
Preparation of Copper-iron Hexacyanoferrate Loaded Multi-walled Carbon Nanotubes Modified Electrode for the Determination of Nitrite
Abstract:
A copper-iron dual metal hexacyanoferrates(CuFeHCF),multi-walled carbon nanotube(MWCNT) modified composite ceramic carbon electrode(CCE)(CuFeHCF/MWCNT/CCE) was fabricated by using cyclic voltammetry.The electrochemical behavior and the electroctalytic activity of this modified electrode were also investigated carefully.The results show that the resulting modified electrode exhibits strongly electrocatalytic activity for the oxidation of nitrite.Based on this electrocatalytic property,an amperometry for the determination of nitrite was established.Under the optimum condition,the liner relationship between the catalytic current and the nitrite concentration is in the range of 2.0×10-7~1.4×10-3 mol/L.The sensitivity and the detection limit are 104.1 μA/(mmol·L-1) and 5.0×10-8 mol/L,respectively.The proposed method was applied to detect nitrite in real samples with satisfactory results.
-
Key words:
- metal hexacyanoferrate
- / multi-walled carbon nanotube
- / nitrite
- / electrocatalysis
-
-
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 435
- HTML全文浏览量: 30
下载:
