An atmospheric pressure microplasma technique is demonstrated for the gas phase synthesis of Ni nanoparticles by plasma‐assisted nickelocene dissociation at different conditions. The dissociation process and the products are characterized by complementary analytical methods to establish the relationship between operational conditions and product properties. The innovation is to show proof‐of‐principle of a new synthesis route which offers access to less costly and less poisonous reactant, a higher quality product, and a simple, continuous and pre/post treatment‐free manner with chance for fine‐tuning “in‐flight.” Results show that Ni nanoparticles with controllable magnetic properties are obtained, in which flexible adjustment of product properties can be achieved by tuning operational parameters. At the optimized condition only fcc Ni nanoparticles are formed, with saturation magnetization value of 44.4 mAm²/g. The upper limit of production rate for Ni nanoparticles is calculated as 4.65 × 10⁻³ g/h using a single plasma jet, but the process can be scaled‐up through a microplasma array design. In addition, possible mechanisms for plasma‐assisted nickelocene dissociation process are discussed. © 2017 The Authors AIChE Journal published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers AIChE J, 64: 1540–1549, 2018

中文翻译：

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大气压等离子体辅助工艺合成磁性可控的镍纳米粒子

演示了一种大气压微等离子体技术，该技术通过在不同条件下通过等离子体辅助的全新世离解来气相合成Ni纳米颗粒。离解过程和产物的特征在于互补的分析方法，以建立操作条件和产物性质之间的关系。创新之处在于展示一条新合成路线的原理证明，该路线可提供成本更低，毒性更低的反应物，更高质量的产品以及简单，连续且无前/后处理方式的机会，并有机会进行微调“机上”。结果表明，获得了具有可控磁性能的Ni纳米颗粒，其中可以通过调节操作参数来实现产品性能的灵活调整。² /克。使用单个等离子流可计算出Ni纳米颗粒的生产率上限为4.65×10 ^-3 g / h，但该过程可通过微等离子体阵列设计扩大规模。此外，还讨论了等离子体辅助的全新世解离过程的可能机制。©2017 The Authors AIChE Journal由Wiley Periodicals，Inc.代表美国化学工程师学会AIChE J，64：1540-1549，2018年出版