Efficient immobilization of 9,10-anthraquinonyl moiety at solid interfaces through 2-(bromomethyl)anthraquinone one-electron cleavage |
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| Institution: | 1. Key laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, 411105, Xiangtan, China;2. College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China;3. School of Mechanical Engineering, Xiangtan University, Xiangtan 411105;4. Hunan joint international laboratory of advanced materials and technology for clean energy, 410082, Changsha, China. |
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| Abstract: | We report here a new and very efficient method for the coverage of different carbon materials with 9,10-anthraquinone attached via a methylene linker. The method is based on one-electron reduction of 2-(bromomethyl)anthraquinone (AQ-CH2-Br) to a free radical AQ–CH2 which was readily achieved using propylene carbonate (PC) as solvent containing tetrabutylammonium iodide. This way, the radical AQ–CH2 adds to the abovementioned carbons forming very stable and dense covalently bound anhraquinonyl methane layers (Г ≈ 2 × 10− 9 mol cm− 2). The grafting could be performed by constant potential electrolyses (q < 0.5 × 10− 3 C mm− 2). |
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