Effect of Boron-Doping Level and Surface Termination in Diamond on Electrogenerated Chemiluminescence
Effect of Boron-Doping Level and Surface Termination in Diamond on Electrogenerated Chemiluminescence
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DOI：
10.1021/acsaelm.1c00620
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发表时间：
2021-09
影响因子：
4.7
通讯作者：
Kohei Sakanoue;A. Fiorani;Irkham;Y. Einaga
中科院分区：
文献类型：
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作者：
Kohei Sakanoue;A. Fiorani;Irkham;Y. Einaga
电致化学发光（Electrogenerated chemiluminescence，ECL）是一种由电化学反应引发的分子发光现象。与许多电化学系统一样，ECL高度依赖于电极材料及其表面状态。掺硼金刚石（BDD）已被应用于电化学发光，但深入的研究仍然很少。特别地，BDD的一个独特特征是通过改变硼掺杂的量来调节其性质，这反过来又影响电化学响应。本文总结了Ru（bpy）32+（bpy = 2，2 ′-bipyridine）/tri-n-propylamine（TPrA）、Ru（bpy）32+/S2 O 82-、Ru（bpy）32+/SO 42-、Ru（bpy）32+/CO 32-以及鲁米诺/CO 32-体系等重要电致化学发光体系的BDD研究结果，并将掺杂水平与电致化学发光响应进行了关联。我们发现，最合适的硼掺杂水平和表面状态是高度依赖于所研究的ECL系统，突出了正确选择的BDD电极的重要性。虽然集中在ECL系统，这些结果提供了一个一般的解释，并可能适用于不同的电化学系统，BDD发现应用。
Electrogenerated chemiluminescence (ECL) is a phenomenon of light emission from a molecular species that is triggered by an electrochemical reaction. As with many electrochemical systems, ECL is highly dependent on the electrode material and its surface state. Boron-doped diamond (BDD) has been applied for ECL, however, thoughtful investigation remains scarce. In particular, a peculiar feature of BDD is the tuning of its properties by changing the amount of boron doping which in turn affects the electrochemical response. Here, we summarize the results from the most important ECL systems, such as Ru(bpy)32+(bpy = 2,2′-bipyridine)/tri-n-propylamine (TPrA), Ru(bpy)32+/S2O82–, Ru(bpy)32+/SO42–, Ru(bpy)32+/CO32–, and the luminol/CO32–system, by using BDD and correlating the doping level to the ECL response. We showed that the most suitable boron doping level and surface state are highly dependent on the ECL system investigated, highlighting the importance of the right choice of the BDD electrode. While focused on ECL systems, these results offer a general interpretation and might be adapted to different electrochemical systems where BDD finds application.