کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
190233 459695 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The electro-oxidation of dimethylamine borane: Part 1, polycrystalline substrates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The electro-oxidation of dimethylamine borane: Part 1, polycrystalline substrates
چکیده انگلیسی

The oxidation of dimethylamine borane (DMAB) on polycrystalline gold electrodes has been investigated using a number of electrochemical techniques. The oxidation of borohydride has been studied to provide a comparison: for DMAB we observe two, sequential oxidation processes on gold. At low potentials, three electrons are extracted from the molecule, implying that hydrogen is not oxidised, whereas at high potential a six electron oxidation occurs. The dimethylamine fragment is also oxidised on gold, albeit at higher potentials, in contrast to assumptions made in previous literature. DMAB oxidation is also studied on platinum and glassy carbon: the data suggests that only part of the amine–borane dissociates in alkaline solution, in particular cleavage of the B−N bond requires prolonged exposure to metallic surfaces.

Research highlights
► We have studied the oxidation of dimethylamine borane (DMAB) on Au electrodes.
► The results have been compared with oxidation of dimethylamine and borohydride.
► Further comparison is made with DMAB oxidation on glassy carbon and Pt electrodes.
► The mechanism of DMAB electro-oxidation is hereby proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 56, Issue 11, 15 April 2011, Pages 3835–3844
نویسندگان
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