杂原子
催化作用
碳纤维
兴奋剂
电化学发光
纳米材料
化学
抗氧化剂
材料科学
无机化学
组合化学
纳米技术
电极
有机化学
物理化学
戒指(化学)
光电子学
复合数
复合材料
作者
Peng Jin,Guoyuan Ren,Nan Gao,Chenglin Qing,Hui Zeng,Li Wang,Meining Zhang
标识
DOI:10.1002/smtd.202401496
摘要
Abstract Heteroatom doping can change the chemical environment of carbon‐based nanomaterials and improve their catalytic performance. Exploring the structure‐catalytic activity relationship of heteroatom‐doped carbon‐based materials is of great significance for studying catalytic mechanisms and designing highly efficient catalysts, but remains a significant challenge. Recently, reactive oxygen species (ROS)‐triggered electrochemiluminescence (ECL) has shown great potential for unveiling the mechanism by which heteroatom‐doped carbon‐based materials catalyze the oxygen reduction reaction (ORR), owing to the high sensitivity of these materials to the properties of the electrode surface. Herein, two kinds of heteroatom‐doped porous carbon (denoted as NP‐C and N‐C) are synthesized and analyzed by monitoring the cathodic ECL of luminol‐H 2 O 2 in the low negative‐potential region. P, N‐doped NP‐C exhibits better catalytic ability for activating H 2 O 2 to generate large amounts of •OH and O 2 •− , compared with N‐C. A sensitive antioxidant‐mediated ECL platform is successfully developed for detecting the antioxidant levels in cells, exhibiting considerable potential for evaluating the antioxidant capacity. The relationship between the structure and catalytic mechanism of heteroatom‐doped carbon‐based materials is successfully explored using ECL, where this method can be universally applied to carbon‐based materials.
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