Journal ArticleDOI
Adsorbate Specificity in Hot Electron Driven Photochemistry on Catalytic Metal Surfaces
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TLDR
In this article, the electron-induced adsorbate dynamics on the metal surface was modeled using a nonadiabatic, first-principles based inelastic electron scattering model.Abstract:
Visible light driven catalysis on metal surfaces and nanoparticles has attracted significant attention in recent years as a potential route for driving selective chemical reactions that are difficult to achieve with thermal energy. It is most often assumed that photochemistry on metal surfaces occurs through a substrate-mediated process of adsorbate-metal bond photoexcitation, although crucial underlying phenomena controlling the efficiency of this process are still poorly understood. In this work, substrate-mediated photochemistry on metal surfaces was analyzed by combining dynamical models associated with the metal substrate photoexcitation and electron-mediated bond-activation processes. An extended version of two-temperature model was utilized to treat temporal evolution of photoexcited charge carriers in the metal substrate. The electron-induced adsorbate dynamics on the metal surface was modeled using a nonadiabatic, first-principles based inelastic electron scattering model. Photoactivation of thre...read more
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Nanometals for Solar-to-Chemical Energy Conversion: From Semiconductor-Based Photocatalysis to Plasmon-Mediated Photocatalysis and Photo-Thermocatalysis.
Xianguang Meng,Xianguang Meng,Xianguang Meng,Lequan Liu,Shuxin Ouyang,Hua Xu,Defa Wang,Naiqin Zhao,Jinhua Ye +8 more
TL;DR: The objective here is to provide instructive information on how to take the advantages of the unique functions of nanometals in different types of catalytic processes to improve the efficiency of solar-energy utilization for more practical artificial photosynthesis.
Journal ArticleDOI
Applications of Plasmon-Enhanced Nanocatalysis to Organic Transformations.
Alexandra Gellé,Tony Z. Jin,Luis Carlos de la Garza,Gareth D. Price,Lucas V. Besteiro,Lucas V. Besteiro,Audrey Moores +6 more
TL;DR: This review provides the basics of LSPR theory, details the mechanisms at play in plasmon-enhanced nanocatalysis, sheds light onto such nanocAtalyst design, and systematically presents the breadth of organic reactions hence catalyzed.
Journal ArticleDOI
Aluminum Nanocrystals as a Plasmonic Photocatalyst for Hydrogen Dissociation
Linan Zhou,Chao Zhang,Michael J. McClain,Alejandro Manjavacas,Caroline M. Krauter,Shu Tian,Felix Berg,Henry O. Everitt,Emily A. Carter,Peter Nordlander,Naomi J. Halas +10 more
TL;DR: It is shown that hot electron transfer from Al NCs to the antibonding orbitals of hydrogen molecules facilitates their dissociation, paving the way for the use of aluminum, an earth-abundant, nonprecious metal, for photocatalysis.
Journal ArticleDOI
Plasmonic hot carrier dynamics in solid-state and chemical systems for energy conversion
TL;DR: In this paper, a review of the theoretical and computational efforts to understand and model plasmonic hot carrier devices is presented, along with the key advances necessary to complete the microscopic mechanistic picture and facilitate the design of the next generation of devices and materials.
Journal ArticleDOI
Hot Charge Carrier Transmission from Plasmonic Nanostructures
TL;DR: This review focuses on the physics and dynamics governing plasmon-derived hot charge carrier transfer across, and the electronic structure at, metal-semiconductor (molecule) interfaces, where the barriers contributing to low efficiencies reside.
References
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Journal ArticleDOI
Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy
TL;DR: Plasmon-enhanced water splitting on composite photocatalysts containing semiconductor and plasmonic-metal building blocks is focused on, and recently reported plasMon-mediated photocatallytic reactions on plAsmonic nanostructures of noble metals are discussed.
Journal ArticleDOI
Visible-light-enhanced catalytic oxidation reactions on plasmonic silver nanostructures
TL;DR: It is shown that plasmonic nanostructures of silver can concurrently use low-intensity visible light and thermal energy to drive catalytic oxidation reactions--such as ethylene epoxidation, CO oxidation, and NH₃ oxidation--at lower temperatures than their conventional counterparts that use only thermal stimulus.
Journal ArticleDOI
Hot Electrons Do the Impossible: Plasmon-Induced Dissociation of H2 on Au
Shaunak Mukherjee,Florian Libisch,Nicolas Large,Oara Neumann,Lisa V. Brown,Jin Cheng,J. Britt Lassiter,Emily A. Carter,Peter Nordlander,Naomi J. Halas +9 more
TL;DR: The room temperature dissociation of H(2) on gold nanoparticles using visible light is reported to open a new pathway for controlling chemical reactions on metallic catalysts.
Journal ArticleDOI
Electron-phonon coupling and electron heat capacity of metals under conditions of strong electron-phonon nonequilibrium
TL;DR: In this article, the dependence of the strength of the electron-phonon coupling and the electron heat capacity on the electron temperature was investigated for eight representative metals, Al, Cu, Ag, Au, Ni, Pt, W, and Ti.
Journal ArticleDOI
Desorption from Metal Surfaces by Low‐Energy Electrons
Dietrich Menzel,Robert Gomer +1 more
TL;DR: In this paper, the effect of low-energy electrons on hydrogen, oxygen, carbon monoxide, and barium adsorbed on tungsten has been investigated by a field-emission technique.