涂有卟嗪复合物的纳米多孔金电极的不寻常暗场高光谱和共焦拉曼显微镜特征。

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-14 DOI:10.1111/jmi.13339

Leonardo M. A. Ribeiro, Hiago N. Silva, Pedro H. A. Damasceno, Mauro Bertotti, Marcos M. Toyama, Marcelo Nakamura, Henrique E. Toma

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引用次数: 0

摘要

纳米多孔金电极因其非同寻常的活性和较大的表面积而在电分析化学中备受关注。通过涂覆分子催化剂（如本研究中研究的四钌化四吡啶卟啉），可以进一步提高电化学活性。纳米孔和边界处的等离子散射光增强改变了电极的光学特性，通过表面增强拉曼散射（SERS）效应提高了透射率。利用高光谱暗视野和共焦拉曼显微镜进行监测时，这种效应可以探测质子纳米孔处的卟吩嗪物种，从而加深对化学修饰金电极的理解。

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Unusual dark-field hyperspectral and confocal Raman microscopy features of a nanoporous gold electrode coated with porphyrazine complex

Nanoporous gold electrodes are of great interest in electroanalytical chemistry, because of their unusual activity and large surface area. The electrochemical activity can be further improved by coating with molecular catalysts such as the tetraruthenated cobalt-tetrapyridylporphyrazines investigated in this work. The plasmonic enhancement of the scattered light at the nanoholes and borders modifies the electrode's optical characteristics, improving the transmission through the surface-enhanced Raman scattering (SERS) effect. When monitored by hyperspectral dark-field and confocal Raman microscopy, this effect allows probing of the porphyrazine species at the plasmonic nanholes, improving the understanding of the chemically modified gold electrodes.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.