Abstract
Finding alternative energy sources to supply the growing need of power is of utmost importance. One of the most promising sources is the sun due to its natural abundance. However, capturing and storing this energy is challenging. Nanostructured metals have become an attractive area of research due to their ability to strongly interact with light, which causes motion of their surface electrons. They have also been shown to be of use in photoelectrochemical systems such as conversion of CO2 to other carbon containing products as well as water splitting. Herein, we address some of the most prevalent research of using these surface-active materials for enhancement of photoelectrochemical CO2 reduction and water oxidation to enhance overall activity as well as discuss analytical techniques (such as Raman spectroscopy) to understand the surface properties. Some challenges and perspectives associated with electrochemical characterization and improvement of the optical methods associated with measuring the plasmon resonance properties are also discussed.
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