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首页> 外文期刊>International Journal of Electrochemical Science >Praseodymium Selective Carbon Paste Electrode based on Carbon Nanotubes and Ionic Liquids
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Praseodymium Selective Carbon Paste Electrode based on Carbon Nanotubes and Ionic Liquids

机译：基于碳纳米管和离子液体的选择性碳糊电极

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Using multi-walled carbon nanotube (MWCNT) and ionic liquid (IL) in the composition of carbonpaste electrodes cause improvement in their characterizations. Previous solution studies showed a3+ selective interaction between N,N-bis(a-methylsalicylidene)diethylenetriamine (BMT) and Pr ionsrespect to other lanthanide ions. To have an electrode with enhanced mechanical resistant in analysis,3+ BMT incorporation of MWCNTs and ionic liquid in carbon paste was used in construction of a Prpotentiometric electrode. The nano-composite electrode showed better sensitivity, selectivity, responsetime, response stability and lifetime in comparison with typical carbon paste electrodes. The bestperformance for nano-composite sensor was obtained with electrode composition of 25% BMT, 25%IL, 45% graphite powder, and 5% MWCNT. The new electrode exhibited a Nernstian response3+ -6 -2 -1 (20.10.4 mV per decade) toward Pr ions in the range of 1.010 -1.010 mol L .
机译：在碳糊电极的组成中使用多壁碳纳米管（MWCNT）和离子液体（IL）会改善其特性。先前的溶液研究表明，N，N-双（α-甲基水杨基亚烷基）二亚乙基三胺（BMT）和Pr离子对其他镧系元素离子具有a3 +选择性相互作用。为了使电极在分析中具有增强的机械耐受性，在碳糊中使用了MWCNTs和离子液体在碳糊中的3+ BMT结合。与典型的碳糊电极相比，纳米复合电极显示出更好的灵敏度，选择性，响应时间，响应稳定性和寿命。使用25％BMT，25％IL，45％石墨粉和5％MWCNT的电极组成可获得纳米复合传感器的最佳性能。新电极对Pr离子的Nernstian响应3+ -6 -2 -1（每十倍20.10.4 mV）在1.010 -1.010 mol L的范围内。

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