Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process

ABSTRACT: Nanoscale tungsten (W) powder is used in some special materials. In this study, a hollow superstructure W powder consisting of nanoparticles was synthesized by spray drying combined with two-step calcination from commercial (NH(4))(6)W(7)O(24)·6H(2)O. The high-pressure gas (HPG) was the si...

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Autores principales: Zhao, Panchao, Yi, Wei, Cao, Qigao, Zhang, Bosheng, Chen, Kunkun, Dang, Rui, Chen, Jialin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Nano Idea
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391506/
https://www.ncbi.nlm.nih.gov/pubmed/30806833
http://dx.doi.org/10.1186/s11671-019-2904-3
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author Zhao, Panchao
Yi, Wei
Cao, Qigao
Zhang, Bosheng
Chen, Kunkun
Dang, Rui
Chen, Jialin
author_facet Zhao, Panchao
Yi, Wei
Cao, Qigao
Zhang, Bosheng
Chen, Kunkun
Dang, Rui
Chen, Jialin
author_sort Zhao, Panchao
collection PubMed
description ABSTRACT: Nanoscale tungsten (W) powder is used in some special materials. In this study, a hollow superstructure W powder consisting of nanoparticles was synthesized by spray drying combined with two-step calcination from commercial (NH(4))(6)W(7)O(24)·6H(2)O. The high-pressure gas (HPG) was the significant factor in spray drying process, which affect the BET surface area and average particles size of the spray-dried powders. The detailed influences of calcined steps and calcination temperature in the microstructure and average particles size of final W particles were investigated. The size distribution of as-synthesized nanoscale W particles with hollow superstructure was from 40 to 200 nm, and the average size was about 100 nm. The as-synthesized W powder shows good sintering properties. It should be noted that the powder technology in this study can be used to synthesize other powders with high-performance requirements. GRAPHICAL ABSTRACT: . [Image: see text]
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spelling pubmed-63915062019-03-14 Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process Zhao, Panchao Yi, Wei Cao, Qigao Zhang, Bosheng Chen, Kunkun Dang, Rui Chen, Jialin Nanoscale Res Lett Nano Idea ABSTRACT: Nanoscale tungsten (W) powder is used in some special materials. In this study, a hollow superstructure W powder consisting of nanoparticles was synthesized by spray drying combined with two-step calcination from commercial (NH(4))(6)W(7)O(24)·6H(2)O. The high-pressure gas (HPG) was the significant factor in spray drying process, which affect the BET surface area and average particles size of the spray-dried powders. The detailed influences of calcined steps and calcination temperature in the microstructure and average particles size of final W particles were investigated. The size distribution of as-synthesized nanoscale W particles with hollow superstructure was from 40 to 200 nm, and the average size was about 100 nm. The as-synthesized W powder shows good sintering properties. It should be noted that the powder technology in this study can be used to synthesize other powders with high-performance requirements. GRAPHICAL ABSTRACT: . [Image: see text] Springer US 2019-02-26 /pmc/articles/PMC6391506/ /pubmed/30806833 http://dx.doi.org/10.1186/s11671-019-2904-3 Text en © The Author(s). 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Idea
Zhao, Panchao
Yi, Wei
Cao, Qigao
Zhang, Bosheng
Chen, Kunkun
Dang, Rui
Chen, Jialin
Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title_full Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title_fullStr Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title_full_unstemmed Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title_short Synthesis and Characterization of Nanoscale Tungsten Particles with Hollow Superstructure Using Spray Drying Combined with Calcination Process
title_sort synthesis and characterization of nanoscale tungsten particles with hollow superstructure using spray drying combined with calcination process
topic Nano Idea
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391506/
https://www.ncbi.nlm.nih.gov/pubmed/30806833
http://dx.doi.org/10.1186/s11671-019-2904-3
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