The influence of surface preparation on the electrochemistry of boron doped diamond: A study of the reduction of 1,4-benzoquinone in acetonitrile |
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| Institution: | 1. School of Chemistry, University of Bristol, Cantock''s Close, Bristol BS8 1TS, UK;1. Academy of Scientific and Innovative Research, New Delhi, India;2. Pharmacokinetics and Metabolism Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India;3. National Institute of Pharmaceutical Education and Research, Raebareli, Uttar Pradesh, India;4. Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India;1. ENVIRON International Corporation, Novato, CA 94998, USA;2. Earth and Atmospheric Sciences Department, University of Houston, Houston, TX 77204, USA;3. Department of Atmospheric and Oceanic Sciences, University of California-Los Angeles, Los Angeles, CA 90095, USA;4. Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599, USA;1. Tallinn University of Technology, Department of Polymeric Materials, Laboratory of Oil Shale and Renewables Research, 5 Ehitajate Road, Tallinn 19086, Estonia;2. Paul Scherrer Institute, General Energy Department, Laboratory for Bioenergy and Catalysis, 5232 Villigen PSI, Switzerland;1. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;2. Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China;3. Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The reduction, at boron doped diamond electrodes, of 1,4-benzoquinone dissolved in acetonitrile is investigated. It is shown that the mechanism of reduction is dependent on electrode pre-treatment. Whilst the response at an oxygenated diamond electrode surface resembles that at platinum and carbon electrodes, the i–E curve at a hydrogenated diamond surface is indicative of protonation of intermediates. The cyclic voltammograms obtained suggest that the sub-surface hydrogen present in the hydrogenated diamond lattice is able to participate in electrochemical processes. |
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