Abstract

Plasmonic photocatalysis represents the synergetic union of two active fields of research: plasmonic effects in illuminated metallic nanoparticles and catalytic effects in tailored metallic nanoparticles. Traditionally, metallic nanoparticles that excel for one application are limited for the other, but recent developments have shown that desirable catalytic behaviors, such as reduced activation barriers and improved product selectivity, derive from nonthermal behaviors uniquely produced by this synergy. After examining such findings, this review will address a specific debate that has recently surfaced: what is the relative degree of contributions of thermal and nonthermal effects in plasmonic photocatalysis? We demonstrate the importance of correctly accounting for thermal effects before characterizing nonthermal contributions. We show that another synergy occurs: these desirable nonthermal behaviors have a temperature dependence, and the resulting temperature-dependent reaction rates far exceed what can be explained from purely thermal effects alone. Thus, the synergy of plasmonic photocatalysis offers an exciting new contribution to the quest for efficient, selective, sustainable methods for chemical synthesis and energy conversion.

中文翻译：

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等离子体光催化中热效应和非热效应之间的协同作用

摘要

等离子体光催化代表了两个活跃研究领域的协同结合：照明金属纳米粒子中的等离子体效应和定制金属纳米粒子中的催化效应。传统上，一种金属纳米粒子只能用于另一种金属纳米粒子，但最近的发展表明，理想的催化行为，例如降低的活化能垒和提高的产品选择性，源于这种协同作用唯一产生的非热行为。在审查了这些发现之后，本文将讨论最近浮出水面的具体辩论：等离子光催化中热效应和非热效应的相对贡献程度是多少？我们证明了在表征非热影响之前正确考虑热影响的重要性。我们表明发生了另一种协同作用：这些合乎需要的非热行为具有温度依赖性，并且所得的温度依赖性反应速率远远超过仅从单纯热效应可以解释的范围。因此，等离子体光催化的协同作用为寻求有效，选择性，可持续的化学合成和能量转化方法提供了令人兴奋的新贡献。