Robust, non-fouling liters-per-day flow synthesis of ultra-small catalytically active metal nanoparticles in a single-channel reactor,Reaction Chemistry & Engineering

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Robust, non-fouling liters-per-day flow synthesis of ultra-small catalytically active metal nanoparticles in a single-channel reactor
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2017-06-30 00:00:00 , DOI: 10.1039/c7re00072c
Wai Kuan Wong _{1,

2,

3,

4} , Swee Kun Yap _{1,

2,

3,

4} , Yi Chen Lim _{1,

2,

3,

4} , Saif A. Khan _{1,

2,

3,

4} , Frédéric Pelletier _{5,

6} , Elena Cristina Corbos _{5,

6}

Affiliation

In this communication, we demonstrate the robust, non-fouling continuous synthesis of catalytically active palladium nanoparticles using a triphasic segmented flow in a hybrid milli–meso flow reactor, which not only allows us to completely eliminate fouling over extended operational duration, but also allows the achievement of ∼10 L per day volumetric productivity in a single-channel reactor. From the synthesis perspective, we select the harshest challenge for this demonstration – the aqueous flow synthesis of metal nanoparticles using the strong, gas-evolving reducing agent sodium borohydride. We also present comparative evaluations of the catalytic activities of flow-synthesized nanoparticles compared to their batch counterparts in a model hydrogenation reaction to highlight the consistency and quality of the nanoparticles produced by the scaled-up flow synthesis.

中文翻译：

单通道反应器中超小型催化活性金属纳米颗粒的稳健，无污垢/日流量合成

在本交流中，我们证明了在混合毫微介孔流反应器中使用三段分段流，可以稳定，连续地合成具有催化活性的钯纳米颗粒，这不仅使我们能够在延长的运行时间内完全消除结垢，而且还允许在单通道反应器中实现每天约10 L的容积生产率。从综合的角度来看，我们选择最严峻的挑战对于此演示–使用强的，可放气的还原剂硼氢化钠对金属纳米颗粒进行水流合成。我们还提出了在模型氢化反应中，与流式合成纳米颗粒相比，其批处理对应物的催化活性的比较评估，以突出按比例放大的流式合成所产生的纳米颗粒的一致性和质量。

更新日期：2017-10-03

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