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Citation: Fu Zhi-Dong, Lin Zhong-Hua, Huang Shao-Hua, Liu Min. Approach to the Mechanism of the Electrochemiluminescence of Luminol in Aqueous Alkaline Solution[J]. Acta Physico-Chimica Sinica, ;1994, 10(04): 371-375. doi: 10.3866/PKU.WHXB19940417 shu

Approach to the Mechanism of the Electrochemiluminescence of Luminol in Aqueous Alkaline Solution

1.
Department of Chemistry, State Key Laboratory for Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005

Received Date: 21 September 1992
Available Online: 15 April 1994

The electrochemiluminescence (ECL) of the luminol in aqueous alkaline solu tion has been studied using cyclic voltammetry, potential step tecdrique and time resolved UV/Vis spectroscopy. The results of the electrochemical experimens showed that the ECL of the luminol can carry out in the potential region of oxygen adsorption also and lead us suggest a new light-emitting pathway for the luminol on which the reaction between some of the luminol radical anions and the adsorbed superoxide radical simultaneously generated in the anodic oxidation proecss yields excited 3-aminophthalate, the light emitting species. The results of the time resolved spectroscopic experiments manifested that the formation of the polymeric film produced by the luminol radical anions is one of important factors decreasing the ECL of the luminol.
- Electrochemiluminescence,
- Luminol
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