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In Situ Monitoring of Electrooxidation Processes at Gold Single Crystal Surfaces Using Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopyстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 декабря 2017 г.
- Авторы: Chao-Yu Li, Dong Jin-Chao, Jin Xi, Chen Shu, Panneerselvam Rajapandiyan, Rudnev Alexander V., Yang Zhi-Lin, Jian-Feng Li, Wandlowski Thomas, Tian Zhong-Qun
- Журнал: Journal of the American Chemical Society
- Том: 137
- Номер: 24
- Год издания: 2015
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 7648
- Последняя страница: 7651
- DOI: 10.1021/jacs.5b04670
- Аннотация: Identifying the intermediate species in an electrocatalytic reaction can provide a great opportunity to understand the reaction mechanism and fabricate, a better catalyst. However, the direct observation of intermediate species at a single crystal-surface is. a daunting challenge for spectroscopic techniques. In this work, electrochemical shell-isolated nanoparticle-enhanced Raman spectroscopy (EC-SHINERS) is utilized to in situ monitor the electrooxidation processes at atomically flat Au(hkl) single crystal electrode surfaces: We systematically explored the effects,of crystallographic orientation, pH value, and anion on electrochemical behavior of intermediate (AuOH/AuO) species.. The experimental results are well Correlated, with our periodic density functional theory calculations and corroborate the long-standing speculation based on theoretical calculations in previous electrochemical studies. The presented in situ electrochemical SHINERS technique offers a unique way for a real-time investigation of an electrocatalytic reaction pathway at various well-defined noble metal surfaces.
- Добавил в систему: Руднев Александр Викторович