Bifunctional porous SnO 2/Ag nanofibers for efficient electroreduction of carbon dioxide to formate and its mechanism elucidation by in-situ surface-enhanced Raman scattering. Synthesis of a gold-metal oxide core-satellite nanostructure for in-situ SERS study of CuO-catalyzed photooxidation. Fundamental understanding and applications of plasmon-enhanced Raman spectroscopy. Enhanced bonding of pentagon–heptagon defects in graphene to metal surfaces: insights from the adsorption of azulene and naphthalene to Pt(111). Electronic excitations of benzene, pyridine, and pyrazine adsorbed on Ag(111). Optical properties and applications of plasmonic‐metal nanoparticles. Potential application of Au core labeling for tracking Ag nanoparticles in the aquatic and biological system. Rational component and structure design of noble-metal composites for optical and catalytic applications. This protocol, from the initial synthesis of the surface-accessible plasmonic nanoparticles to the final in situ biphasic SERS analysis, requires ~14 h and is ideally suited to users with basic knowledge in performing Raman spectroscopy and wet synthesis of metal nanoparticles. The applications of the approach are illustrated using two examples: the probing of π–metal interactions and that of target/ligand–particle interactions on hollow bimetallic nanostars. The procedure covers the synthesis and characterization of surface-accessible colloids, the preliminary SERS screening with agglomerated colloids, the synthesis and characterization of interfacial nanoparticle assemblies, termed metal liquid-like films, and the in situ biphasic SERS analysis with metal liquid-like films. Here, we explain how to couple SERS with surface-accessible plasmonic-enhancing substrates, which are capped with weakly adsorbing capping ligands such as citrate and chloride ions, to allow molecule–metal interactions to be probed in situ and in real time, thus providing information on the surface orientation and the formation and breaking of chemical bonds. Surface-enhanced Raman spectroscopy (SERS) can be used to probe the interaction of plasmonic nanoparticles with light to enhance the Raman signals of molecules near the surface of nanoparticles. We developed a sensitive and robust characterization technique for probing the surface chemistry of nanomaterials in the complex environments that are directly relevant to their applications. The surface chemistry of noble metal surfaces under ideal, clean conditions has been extensively studied however, clean conditions are seldom met in real-world applications. The interactions between molecules and noble metal nanosurfaces play a central role in many areas of nanotechnology.
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