Insight into the electrochemical performance of heavy metal-free quantum dots in different buffered ferricyanide/ferrocyanide redox systems
Insight into the electrochemical performance of heavy metal-free quantum dots in different buffered ferricyanide/ferrocyanide redox systems
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深入了解无重金属量子点在不同缓冲铁氰化物/亚铁氰化物氧化还原体系中的电化学性能
DOI：
10.1016/j.matlet.2024.136203
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发表时间：
2024
影响因子：
3
通讯作者：
Adegoke O
中科院分区：
文献类型：
--
作者：
Adegoke O
铁氰化物/亚铁氰化物K3[Fe(CN)6]/K4[Fe(CN)6]氧化还原对是电化学中广泛使用的氧化还原探针。缓冲K3[Fe(CN)6]/K4[Fe(CN)6]体系已成为提高电子转移速率和稳定电化学体系的途径之一。近年来，半导体量子点作为纳米标记物在电化学领域得到了广泛的应用。本文用伏安法和交流阻抗法研究了无镉AuZnFeSeS量子点修饰的丝网印刷碳电极(SPCE)在不同缓冲K3[Fe(CN)6]/K4[Fe(CN)6]电解液中的电化学行为。结果表明，在所研究的电解质缓冲溶液中，量子点/SPCE具有较快的电子转移速率、较低的势垒和较低的电荷转移电阻(RCT)。
The ferricyanide/ferrocyanide K3[Fe(CN)6]/K4[Fe(CN)6] redox couple is a widely utilized redox probe in electrochemistry. Buffering the K3[Fe(CN)6]/K4[Fe(CN)6] system has become one of the ways to generate improved electron transfer rates and stable electrochemical systems. In recent years, semiconductor quantum dots (QDs) have gained popularity as nanotags in electrochemical applications. Herein, we report on the comparative electrochemical behaviour of cadmium-free AuZnFeSeS quantum dots (QDs)-modified screen-printed carbon electrode (SPCE) in different buffered K3[Fe(CN)6]/K4[Fe(CN)6] electrolyte solutions using voltammetry and electrochemical impedance spectroscopy (EIS) techniques. Our results showed that the QDs/SPCE exhibited faster electron transfer rates, lower energy barrier and lower charge transfer resistance (Rct) in the studied buffered electrolyte solution.
DOI：
10.1016/j.colsurfa.2022.129013
发表时间：
2022-04-18
影响因子：
5.2
作者：
Adegoke, Oluwasesan;Zolotovskaya, Svetlana;Daeid, Niamh Nic
通讯作者：
Daeid, Niamh Nic