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Title: Continuous-Flow Synthesis of Thermochromic M-Phase VO 2 Particles via Rapid One-Step Hydrothermal Reaction: Effect of Mixers

Abstract

VO 2 particles are promising materials for thermochromic smart windows that reduce building energy loss. Continuous-flow hydrothermal processes showcase advantages for synthesizing VO 2 particles compared with traditional batch reaction systems. Mixers play a crucial role in particle fabrication in continuous-flow systems. In this study, a Center T-Mixer and a Collision Cross-Mixer are developed and implemented in a hot water fluidized suspension reaction (HWFSR) system. The influence of the resident time on the particle phase and size was evaluated, and properties of particles derived from systems equipped with differing mixers were compared. The resulting particles were characterized using techniques of X-ray powder diffraction (XRD) analysis, scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). When compared with the Center T-Mixer, results indicate that the Collision Cross-Mixer has better control regarding the morphology and size distribution of resulting particles while improving the transition temperatures of the as-synthesized materials. HWFSR systems containing novel mixer designs are capable of producing pure M-phase VO 2 particles in a single step contrary to the current reactor design that use a second postheat treatment step, and they are capable of synthesizing many other nanoparticle species, especially those requiring high temperature and pressure reaction conditions.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [5];  [1]
  1. Applied Materials Division, Argonne National Laboratory, Lemont 60439, USA
  2. Department of Chemical and Biological Engineering, South Dakota School of Mines and Technology, Rapid City 57701, USA
  3. Department of Chemistry, University of San Francisco, San Francisco 94117, USA
  4. Department of Chemistry, Temple University, Philadelphia 19122, USA
  5. Energy Systems Division, Argonne National Laboratory, Lemont 60439, USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1525529
Resource Type:
Published Article
Journal Name:
Journal of Nanomaterials
Additional Journal Information:
Journal Name: Journal of Nanomaterials Journal Volume: 2019; Journal ID: ISSN 1687-4110
Publisher:
Hindawi Publishing Corporation
Country of Publication:
Egypt
Language:
English

Citation Formats

Yan, Xiaojie, Trevillyan, William, Castano, Ioannina, Sun, Yugang, Muehleisen, Ralph, and Li, Jie. Continuous-Flow Synthesis of Thermochromic M-Phase VO 2 Particles via Rapid One-Step Hydrothermal Reaction: Effect of Mixers. Egypt: N. p., 2019. Web. doi:10.1155/2019/2570698.
Yan, Xiaojie, Trevillyan, William, Castano, Ioannina, Sun, Yugang, Muehleisen, Ralph, & Li, Jie. Continuous-Flow Synthesis of Thermochromic M-Phase VO 2 Particles via Rapid One-Step Hydrothermal Reaction: Effect of Mixers. Egypt. doi:10.1155/2019/2570698.
Yan, Xiaojie, Trevillyan, William, Castano, Ioannina, Sun, Yugang, Muehleisen, Ralph, and Li, Jie. Mon . "Continuous-Flow Synthesis of Thermochromic M-Phase VO 2 Particles via Rapid One-Step Hydrothermal Reaction: Effect of Mixers". Egypt. doi:10.1155/2019/2570698.
@article{osti_1525529,
title = {Continuous-Flow Synthesis of Thermochromic M-Phase VO 2 Particles via Rapid One-Step Hydrothermal Reaction: Effect of Mixers},
author = {Yan, Xiaojie and Trevillyan, William and Castano, Ioannina and Sun, Yugang and Muehleisen, Ralph and Li, Jie},
abstractNote = {VO 2 particles are promising materials for thermochromic smart windows that reduce building energy loss. Continuous-flow hydrothermal processes showcase advantages for synthesizing VO 2 particles compared with traditional batch reaction systems. Mixers play a crucial role in particle fabrication in continuous-flow systems. In this study, a Center T-Mixer and a Collision Cross-Mixer are developed and implemented in a hot water fluidized suspension reaction (HWFSR) system. The influence of the resident time on the particle phase and size was evaluated, and properties of particles derived from systems equipped with differing mixers were compared. The resulting particles were characterized using techniques of X-ray powder diffraction (XRD) analysis, scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). When compared with the Center T-Mixer, results indicate that the Collision Cross-Mixer has better control regarding the morphology and size distribution of resulting particles while improving the transition temperatures of the as-synthesized materials. HWFSR systems containing novel mixer designs are capable of producing pure M-phase VO 2 particles in a single step contrary to the current reactor design that use a second postheat treatment step, and they are capable of synthesizing many other nanoparticle species, especially those requiring high temperature and pressure reaction conditions.},
doi = {10.1155/2019/2570698},
journal = {Journal of Nanomaterials},
number = ,
volume = 2019,
place = {Egypt},
year = {2019},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1155/2019/2570698

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