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Decoupling reduction-sulfurization synthesis of inorganic fullerene-like WS2 nanoparticles in a particulately fluidized bed
Alternative TitleChem. Eng. J.
Li, Jun; Zhou, Li; Zhu, Oingshan; Li, Hongzhong
2014-08-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume249Issue:1Pages:54-62
AbstractA novel decoupling reduction-sulfurization process for the synthesis of inorganic fullerene-like (IF) WS2 nanoparticles has been developed in this work. In this strategy, the raw WO3 nanoparticles are firstly reduced by hydrogen in a fluidized bed, followed by sulfurization with H2S in a reducing atmosphere. The diffusion and reaction are the two kinetic factors playing important roles in controlling the structure of WS2. Under diffusion limitation, the porous beta-W phase and inordinate WS2 structure are formed, while the alpha-W phase and IF-WS2 structure are usually obtained in the reaction-limited condition. The particulate fluidization of the reduced WO3 nanoparticles in the agglomerates forms is realized in this decoupiing reduction sulfurization process. The porous beta-W nanoparticles and their particulate fluidization enhance the diffusion of H2S, resulting in the completion of sulfurization reaction in short time. This newly developed approach is efficient and cost-effective, and might be extended to the large-scale synthesis of other inorganic fullerene-like metal sulfides. (C) 2014 Elsevier B.V. All rights reserved.; A novel decoupling reduction-sulfurization process for the synthesis of inorganic fullerene-like (IF) WS2 nanoparticles has been developed in this work. In this strategy, the raw WO3 nanoparticles are firstly reduced by hydrogen in a fluidized bed, followed by sulfurization with H2S in a reducing atmosphere. The diffusion and reaction are the two kinetic factors playing important roles in controlling the structure of WS2. Under diffusion limitation, the porous beta-W phase and inordinate WS2 structure are formed, while the alpha-W phase and IF-WS2 structure are usually obtained in the reaction-limited condition. The particulate fluidization of the reduced WO3 nanoparticles in the agglomerates forms is realized in this decoupiing reduction sulfurization process. The porous beta-W nanoparticles and their particulate fluidization enhance the diffusion of H2S, resulting in the completion of sulfurization reaction in short time. This newly developed approach is efficient and cost-effective, and might be extended to the large-scale synthesis of other inorganic fullerene-like metal sulfides. (C) 2014 Elsevier B.V. All rights reserved.
KeywordWs2 Synthesis Decoupling Reduction-sulfurization Particulate Fluidization
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cej.2014.03.085
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCHEMICAL-VAPOR-DEPOSITION ; GAS-PHASE SYNTHESIS ; HYDROGEN-STORAGE ; LIMITED AGGREGATION ; DISULFIDE NANOTUBES ; GROWTH-MECHANISM ; CAGE STRUCTURES ; MOS2 NANOTUBES ; HOLLOW ; CARBON
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000337554100008
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10924
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Jun,Zhou, Li,Zhu, Oingshan,et al. Decoupling reduction-sulfurization synthesis of inorganic fullerene-like WS2 nanoparticles in a particulately fluidized bed[J]. CHEMICAL ENGINEERING JOURNAL,2014,249(1):54-62.
APA Li, Jun,Zhou, Li,Zhu, Oingshan,&Li, Hongzhong.(2014).Decoupling reduction-sulfurization synthesis of inorganic fullerene-like WS2 nanoparticles in a particulately fluidized bed.CHEMICAL ENGINEERING JOURNAL,249(1),54-62.
MLA Li, Jun,et al."Decoupling reduction-sulfurization synthesis of inorganic fullerene-like WS2 nanoparticles in a particulately fluidized bed".CHEMICAL ENGINEERING JOURNAL 249.1(2014):54-62.
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