界面电化学中的原位红外和拉曼光谱联用研究

IF 6.7 1区化学 Q1 CHEMISTRY, ANALYTICAL

Analytical Chemistry Pub Date : 2025-01-08 DOI:10.1021/acs.analchem.4c04419

Xindi Xu, Wei-Yi Zhang, Xian-Yin Ma, Xianxian Qin, Tian-Wen Jiang, Hong Li, Yanliang Zhang, Kun Jiang, Wen-Bin Cai

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引用次数: 0

摘要

为了解决在分子水平上对电极-电解质界面的连字符原位表征的迫切需求，我们在这里报告了一份技术说明，以证明原位电化学表面增强红外吸收光谱（SEIRAS）和壳隔离纳米颗粒增强拉曼光谱（SHINERS）的连字符。核心装置包括一个自上而下配置的拉曼光纤头，装载在一个三维定位模块上，以及一个自下而上配置的衰减全反射红外光谱（ATR-IR）电化学电池，该电池安装在一个定制设计的光学附件中。通过同时测量两个模型系统，即吡啶在Au膜电极上的电位依赖吸附和Cu膜电极上的CO2还原反应，通过原位SEIRAS和SHINERS验证了这种集成设计的可行性，得到了不同且互补的光谱信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Toward Hyphenated In Situ Infrared and Raman Spectroscopies in Interfacial Electrochemistry

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Toward Hyphenated In Situ Infrared and Raman Spectroscopies in Interfacial Electrochemistry

To address the pressing demand for hyphenated in situ characterization of the electrode–electrolyte interfaces at the molecular level, we report herein a technical note to demonstrate the hyphenation of in situ electrochemical surface-enhanced infrared absorption spectroscopy (SEIRAS) and shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS). The core setup incorporates a top-down configured Raman optic fiber head loaded on a 3-dimension positioning module and a bottom-up configured attenuated total reflection infrared spectroscopy (ATR-IR) spectroelectrochemical cell accommodated in a custom-designed optical accessory. The feasibility of this integrated design is initially validated by the simultaneous measurement of two model systems, namely, potential dependent adsorption of pyridine on a Au film electrode and the CO₂ reduction reaction on a Cu film electrode by in situ SEIRAS and SHINERS, yielding distinct and complementary spectral information.

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来源期刊

Analytical Chemistry 化学-分析化学

CiteScore

12.10

自引率

12.20%

发文量

1949

审稿时长

1.4 months

期刊介绍： Analytical Chemistry, a peer-reviewed research journal, focuses on disseminating new and original knowledge across all branches of analytical chemistry. Fundamental articles may explore general principles of chemical measurement science and need not directly address existing or potential analytical methodology. They can be entirely theoretical or report experimental results. Contributions may cover various phases of analytical operations, including sampling, bioanalysis, electrochemistry, mass spectrometry, microscale and nanoscale systems, environmental analysis, separations, spectroscopy, chemical reactions and selectivity, instrumentation, imaging, surface analysis, and data processing. Papers discussing known analytical methods should present a significant, original application of the method, a notable improvement, or results on an important analyte.