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Continuous synthesis of hollow silver–palladium nanoparticles for catalytic applications
Faraday Discussions ( IF 3.4 ) Pub Date : 2018-04-16 , DOI: 10.1039/c8fd00001h
Ke-Jun Wu 1, 2, 3, 4 , Yunhu Gao 1, 2, 3, 4 , Laura Torrente-Murciano 1, 2, 3, 4
Affiliation  

Hollow bimetallic nanoparticles exhibit unique surface plasmonic properties, enhanced catalytic activities and high photo-thermal conversion efficiencies amongst other properties, however, their research and further deployment are currently limited by their complicated multi-step syntheses. This paper presents a novel approach for their continuous synthesis with controllable and tuneable sizes and compositions. This robust manufacturing tool, consisting of coiled flow inverter (CFI) reactors connected in series, allows for the first time the temporal and spatial separation of the initial formation of silver seeds and their subsequent galvanic displacement reaction in the presence of a palladium precursor, leading to the full control of both steps separately. We have also demonstrated that coupling the galvanic replacement and co-reduction leads to a great kinetic enhancement of the system leading to a high yield process of hollow bimetallic nanoparticles, directly applicable to other metal combinations.

中文翻译:

连续合成中空银钯纳米颗粒用于催化应用

中空双金属纳米颗粒具有独特的表面等离子体性能,增强的催化活性和较高的光热转化效率等特性,但是,由于其复杂的多步合成方法,它们的研究和进一步应用目前受到限制。本文提出了一种新颖的方法,可以连续不断地合成其大小和组成可控的化合物。这种坚固的制造工具由串联连接的螺旋流逆变器(CFI)反应器组成,首次实现了在存在钯前体的情况下在初始时间上和空间上分离了银种子的初始形成及其随后的电置换反应,从而分别完全控制两个步骤。
更新日期:2018-09-03
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