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Open AccessJournal ArticleDOI

Plasmon-induced selective carbon dioxide conversion on earth-abundant aluminum-cuprous oxide antenna-reactor nanoparticles.

TLDR
In this article, earth abundant aluminum is embedded in cuprous oxide antenna-reactor heterostructures that operate more effectively and selectively for the reverse water-gas shift reaction under milder illumination than in conventional thermal conditions.
Abstract
The rational combination of plasmonic nanoantennas with active transition metal-based catalysts, known as 'antenna-reactor' nanostructures, holds promise to expand the scope of chemical reactions possible with plasmonic photocatalysis. Here, we report earth-abundant embedded aluminum in cuprous oxide antenna-reactor heterostructures that operate more effectively and selectively for the reverse water-gas shift reaction under milder illumination than in conventional thermal conditions. Through rigorous comparison of the spatial temperature profile, optical absorption, and integrated electric field enhancement of the catalyst, we have been able to distinguish between competing photothermal and hot-carrier driven mechanistic pathways. The antenna-reactor geometry efficiently harnesses the plasmon resonance of aluminum to supply energetic hot-carriers and increases optical absorption in cuprous oxide for selective carbon dioxide conversion to carbon monoxide with visible light. The transition from noble metals to aluminum based antenna-reactor heterostructures in plasmonic photocatalysis provides a sustainable route to high-value chemicals and reaffirms the practical potential of plasmon-mediated chemical transformations.Plasmon-enhanced photocatalysis holds promise for the control of chemical reactions. Here the authors report an Al@Cu2O heterostructure based on earth abundant materials to transform CO2 into CO at significantly milder conditions.

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Citations
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Journal ArticleDOI

Surface-Plasmon-Driven Hot Electron Photochemistry

TL;DR: This review sums up recent theoretical and experimental approaches for understanding the underlying photophysical processes in hot electron generation and discusses various electron-transfer models on both plasmonic metal nanostructures and plasMonic metal/semiconductor heterostructure.
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Is this a practical approach

TL;DR: The health care system must treat illness, alleviate suffering and disability, and promote health, but the whole system needs to work to improve the health of populations.
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Quantifying hot carrier and thermal contributions in plasmonic photocatalysis

TL;DR: The concept of a light-dependent activation barrier is introduced to account for the effect of light illumination on electronic and thermal excitations in a single unified picture and provides insight into the specific role of hot carriers in plasmon-mediated photochemistry, which is critically important for designing energy-efficient plAsmonic photocatalysts.
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.
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Recent advances in catalytic hydrogenation of carbon dioxide

TL;DR: A critical review of recent developments in hydrogenation reaction, with emphases on catalytic reactivity, reactor innovation, and reaction mechanism, provides an overview regarding the challenges and opportunities for future research in the field.
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Plasmon-induced hot carrier science and technology

TL;DR: Recent advances in the understanding and application of plasmon-induced hot carrier generation are discussed and some of the exciting new directions for the field are highlighted.
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Plasmon-induced hot-electron generation at nanoparticle/metal-oxide interfaces for photovoltaic and photocatalytic devices

TL;DR: In this paper, the potential of hot electrons in metallic structures and its potential as an alternative to conventional electron-hole separation in semiconductor devices are discussed along with challenges in terms of the materials, architectures and fabrication methods.
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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.
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