Journal
ELECTROCHIMICA ACTA
Volume 61, Issue -, Pages 118-123Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.11.109
Keywords
Indium tin oxide glass; Electrochemically generated chemiluminescence; Reactive oxygen species; Singlet oxygen; Intensification
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Funding
- National Natural Science Foundation of China [20675055, 21175096]
- Ph.D. Programs Foundation of the Ministry of Education of China [20093201110004]
- Natural Science Foundation of Jiangsu Province [BK2009111]
- Project of Science and Technology of Suzhou [SYJG0901]
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A significant phenomenon is observed when indium tin oxide (ITO) glass is used as the anode in electrochemical studies. Notable luminescent signals are observed when a pulse potential is applied to an ITO electrode in alkaline solution in the absence of a luminescent reagent. This paper discusses the mechanism of this luminescence effect in detail. The investigation reveals that the reactive oxygen species (ROSS) generated during the electrolysis are O-2(center dot-), OH center dot and H2O2, It was also found that the singlet oxygen (O-1(2)) produced subsequently acted as the indispensable light-emitting entity and the ITO was a critical intensification determinant. (C) 2011 Elsevier Ltd. All rights reserved.
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