Continuous Flow Routes toward Designer Metal Nanocatalysts
Continuous Flow Routes toward Designer Metal Nanocatalysts
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DOI：
10.1002/aenm.201902051
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发表时间：
2019-09-05
影响因子：
27.8
通讯作者：
Skrabalak，Sara E.
中科院分区：
文献类型：
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作者：
Santana，Joshua S.;Skrabalak，Sara E.
单金属和多金属纳米颗粒（NP）具有多种可调的物理化学性质，这些性质来自其组成以及微晶尺寸和形状。通过合成精确控制纳米颗粒的组成和结构的能力是实现最先进的设计师金属纳米颗粒用作催化剂和电催化剂的核心。然而，使用设计师金属NP作为催化剂的主要限制是在保持结构精确度的同时扩大其合成的能力。为了解决这一挑战，正在开发涉及使用液滴微反应器的金属纳米颗粒的连续流动路线，提供实现已知和全新纳米结构所需的合成多功能性。本进展报告概述了液滴微反应器的化学和工艺参数如何通过控制NP成分、尺寸、形状和结构来实现高性能纳米催化剂，并概述了以前难以想象的纳米结构的方向。
Mono‐ and multimetallic nanoparticles (NPs) have diverse and tunable physicochemical properties that arise from their compositions as well as crystallite size and shape. The ability to control precisely the composition and structure of NPs through synthesis is central to achieving state‐of‐the‐art designer metal NPs for use as catalysts and electrocatalysts. However, a major limitation to the use of designer metal NPs as catalysts is the ability to scale their syntheses while maintaining structural precision. To address this challenge, continuous flow routes to metal NPs involving the use of droplet microreactors are being developed, providing the synthetic versatility necessary to achieve known and completely new nanostructures. This progress report outlines how the chemistry and process parameters of droplet microreactors can be used to achieve high performing nanocatalysts through control of NP composition, size, shape, and architecture and outlines directions toward previously unimaginable nanostructures.