Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor

Wan, Xiaoxi; Li, Jun; Li, Na; Zhang, Jingxi; Gu, Yongwan; Chen, Guo; Ju, Shaohua

doi:10.3390/ma16062217

Open AccessArticle

Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor

by

Xiaoxi Wan

^1,2,3,

Jun Li

^1,2,3,

Na Li

^1,2,3,

Jingxi Zhang

^1,2,3,

Yongwan Gu

⁴,

Guo Chen

^1,* and

Shaohua Ju

^1,2,3,*

¹

Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China

²

Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming 650093, China

³

National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming 650093, China

⁴

Kunming Institute of Precious Metals, Kunming 650106, China

^*

Authors to whom correspondence should be addressed.

Materials 2023, 16(6), 2217; https://doi.org/10.3390/ma16062217

Submission received: 10 February 2023 / Revised: 28 February 2023 / Accepted: 5 March 2023 / Published: 10 March 2023

(This article belongs to the Special Issue Recovery of Non-ferrous Metal from Metallurgical Residues)

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Abstract

Herein, micron-sized silver particles were prepared using the chemical reduction method by employing a Y-type microjet reactor, silver nitrate as the precursor, ascorbic acid as the reducing agent, and gelatin as the dispersion at room temperature (23 °C ± 2°C). Using a microjet reactor, the two reaction solutions collide and combine outside the reactor, thereby avoiding microchannel obstruction issues and facilitating a quicker and more convenient synthesis process. This study examined the effect of the jet flow rate and dispersion addition on the morphology and size of silver powder particles. Based on the results of this study, spherical and dendritic silver particles with a rough surface can be prepared by adjusting the flow rate of the reaction solution and gelatin concentration. The microjet flow rate of 75 mL/min and the injected gelatin amount of 1% of the silver nitrate mass produced spherical ultrafine silver particles with a size of 4.84 μm and a tap density of 5.22 g/cm³.

Keywords: Y-type microjet reactor; spherical ultrafine silver particles; wet chemical reduction; dendritic particle

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MDPI and ACS Style

Wan, X.; Li, J.; Li, N.; Zhang, J.; Gu, Y.; Chen, G.; Ju, S. Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor. Materials 2023, 16, 2217. https://doi.org/10.3390/ma16062217

AMA Style

Wan X, Li J, Li N, Zhang J, Gu Y, Chen G, Ju S. Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor. Materials. 2023; 16(6):2217. https://doi.org/10.3390/ma16062217

Chicago/Turabian Style

Wan, Xiaoxi, Jun Li, Na Li, Jingxi Zhang, Yongwan Gu, Guo Chen, and Shaohua Ju. 2023. "Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor" Materials 16, no. 6: 2217. https://doi.org/10.3390/ma16062217

APA Style

Wan, X., Li, J., Li, N., Zhang, J., Gu, Y., Chen, G., & Ju, S. (2023). Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor. Materials, 16(6), 2217. https://doi.org/10.3390/ma16062217

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Preparation of Spherical Ultrafine Silver Particles Using Y-Type Microjet Reactor

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