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首页> 外文期刊>Advanced Functional Materials >Highly Efficient Electrochemiluminescence of Functionalized Tris(2,2′-bipyridyl)ruthenium(Ⅱ) and Selective Concentration Enrichment of Its Co-reactants
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Highly Efficient Electrochemiluminescence of Functionalized Tris(2,2′-bipyridyl)ruthenium(Ⅱ) and Selective Concentration Enrichment of Its Co-reactants

机译：官能化三（2,2'-联吡啶）钌（Ⅱ）的高效电化学发光及其共反应物的选择性富集

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摘要

An enhanced electrochemiluminescence (ECL) efficiency is obtained from the ruthenium complex tris(2,2′-bipyridyl)ruthe-nium(Ⅱ) (Ru(bpy)_3~(2+)) by introduction of an ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate (BMImBF_4). Upon addition of 1 % (v/v) BMImBF_4 to 0.1 mM Ru(bpy)_3~(2+) solution, a maximum increase in ECL intensity is obtained both at an indium tin oxide (ITO) electrode (15-fold) and at a glassy carbon (GC) electrode (5- to 6-fold). Furthermore, upon addition of 1 % (v/v) BMImBF_4 to 5 μm Ru(bpy)_3~(2+)/100 mM co-reactant systems at a GC electrode, IL adsorption occurs at the electrode surface, which results in a change of the polarity of the electrode surface. Such functionalization greatly improves the functions of both Ru(bpy)_3~(2+) and ionic liquids, as is demonstrated in the sensitive and selective concentration enrichment of the Ru(bpy)_3~(2+) co-reactants.
机译：通过引入离子液体（IL）1从钌配合物三（2,2'-联吡啶基）钌（Ⅱ）（Ru（bpy）_3〜（2+））获得增强的电化学发光（ECL）效率3-甲基咪唑鎓四氟硼酸酯（BMImBF_4）。在0.1 mM Ru（bpy）_3〜（2+）溶液中添加1％（v / v）BMImBF_4时，在氧化铟锡（ITO）电极（15倍）和15倍氧化铟锡电极上均获得最大的ECL强度增加。在玻璃碳（GC）电极上（5至6倍）。此外，在GC电极上向5μmRu（bpy）_3〜（2 +）/ 100 mM共反应体系中添加1％（v / v）BMImBF_4时，电极表面会发生IL吸附，从而导致改变电极表面的极性。这种官能化极大地改善了Ru（bpy）_3〜（2+）和离子液体的功能，这在Ru（bpy）_3〜（2+）共反应剂的灵敏和选择性浓缩中得到了证明。

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