Single-Atom Iron Boosts Electrochemiluminescence.,Angewandte Chemie International Edition

当前位置： X-MOL 学术 › Angew. Chem. Int. Ed. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Single-Atom Iron Boosts Electrochemiluminescence.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-12-24 , DOI: 10.1002/anie.201914643
Wenling Gu ₁ , Hengjia Wang ₁ , Lei Jiao ₁ , Yu Wu ₁ , Yuxin Chen ₁ , Liuyong Hu ₂ , Jingming Gong ₁ , Dan Du ₃ , Chengzhou Zhu ₁

Affiliation

The traditional luminol-H2 O2 electrochemiluminescence (ECL) sensing platform suffers from self-decomposition of H2 O2 at room temperature, hampering its application for quantitative analysis. In this work, for the first time we employ iron single-atom catalysts (Fe-N-C SACs) as an advanced co-reactant accelerator to directly reduce the dissolved oxygen (O2 ) to reactive oxygen species (ROS). Owing to the unique electronic structure and catalytic activity of Fe-N-C SACs, large amounts of ROS are efficiently produced, which then react with the luminol anion radical and significantly amplify the luminol ECL emission. Under the optimum conditions, a Fe-N-C SACs-luminol ECL sensor for antioxidant capacity measurement was developed with a good linear range from 0.8 μm to 1.0 mm of Trolox.

中文翻译：

单原子铁增强电化学发光。

传统的Luminol-H2 O2电化学发光（ECL）传感平台在室温下会遭受H2 O2的自分解，从而妨碍了其在定量分析中的应用。在这项工作中，我们首次使用铁单原子催化剂（Fe-NC SAC）作为先进的共反应促进剂，直接将溶解氧（O2）还原为活性氧（ROS）。由于Fe-NC SAC具有独特的电子结构和催化活性，因此可以有效地产生大量的ROS，然后它们与鲁米诺阴离子自由基反应并显着放大鲁米诺ECL的发射。在最佳条件下，开发了用于抗氧化剂容量测量的Fe-NC SACs-luminol ECL传感器，其Trolox线性范围从0.8μm到1.0 mm。

更新日期：2020-01-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11