Chemical Vapor Synthesis of Nonagglomerated Nickel Nanoparticles by In-Flight Coating.

Autor:	Jo YS; Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do 25440, Republic of Korea.; Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea., Lee HJ; Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do 25440, Republic of Korea.; Korea Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung, Gangwon-do 25457, Republic of Korea., Park HM; Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do 25440, Republic of Korea.; Department of Advanced Materials Engineering, Kyonggi University, Suwon, Kyonggi-do 16227, Republic of Korea., Na TW; Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do 25440, Republic of Korea., Jung JS; Korea Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung, Gangwon-do 25457, Republic of Korea., Min SH; Korea Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung, Gangwon-do 25457, Republic of Korea., Kim YK; Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea., Yang SM; Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do 25440, Republic of Korea.
Jazyk:	angličtina
Zdroj:	ACS omega [ACS Omega] 2021 Oct 13; Vol. 6 (42), pp. 27842-27850. Date of Electronic Publication: 2021 Oct 13 (Print Publication: 2021).
DOI:	10.1021/acsomega.1c03468
Abstrakt:	Nickel (Ni) nanoparticles (NPs) prepared through vapor-phase synthesis (VPS) are preferred for multilayer ceramic capacitor electrodes due to their high purity and crystallinity advantages. Agglomerated Ni NPs are usually generated using VPS but are undesirable because they cause various problems such as low packing density and electrical shorts. This study proposes the use of coating-assisted chemical vapor synthesis (CVS) for agglomerate inhibition using NaCl or KCl as a coating agent. We have found that the agglomeration ratio, 34.40%, for conventional CVS, can be reduced to 4.80% in the proposed method by in-flight coating with KCl at 900 °C by image analysis using field-emission scanning electron microscopy. Furthermore, the X-ray diffraction and X-ray fluorescence analyses confirm that the NaCl and KCl coating agent can be removed by washing with distilled water. We believe that this coating process can be used to inhibit the formation of agglomerates during the CVS of Ni NPs. Competing Interests: The authors declare no competing financial interest. (© 2021 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
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