The electro-oxidation of dimethylamine borane: Part 1, polycrystalline substrates
The electro-oxidation of dimethylamine borane: Part 1, polycrystalline substrates
复制标题
DOI:
10.1016/j.electacta.2011.02.041
复制
发表时间:
2011-04
影响因子:
6.6
通讯作者:
D. Plana;R. Dryfe
中科院分区:
文献类型:
--
作者:
D. Plana;R. Dryfe
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.