Unique electrochemiluminescence behavior of Ru(bpy)3 in a gold/Nafion/Ru(bpy)3 composite |
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| Authors: | Bin Qi Xue-Bo Yin Xiurong Yang |
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| Affiliation: | a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China
b Graduate School of the Chinese Academy of Sciences, Beijing, 100039, PR China |
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| Abstract: | The unique electrochemiluminescence (ECL) behavior of tris(bipyridine) ruthenium(II) (Ru(bpy)32+) immobilized in a gold/Nafion/Ru(bpy)32+ composite material was investigated. In this composite, the Ru(bpy)32+ ECL was found mainly occurred at 0-0.4 V during the cathodic scan process and the ECL peak was at about 0.1 V, which was quite different to the reported Ru(bpy)32+ ECL. Similar to the generally observed Ru(bpy)32+ ECL, the present ECL also could be enhanced by tri-n-propylamine (TPA). It is also unique that in the presence of TPA, another ECL peak at about 0.38 V occurred. These two ECL peak potentials all could be used as characteristic potential for the ECL determination of TPA. |
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| Keywords: | Ru(bpy)32+ Gold Nafion Luminescence TPA Composite materials |
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