Continuous fabrication of calcium sulfate whiskers with adjustable aspect ratio in microdroplets

Yunfei Qi; Changfeng Zeng; Chongqing Wang; Xuebin Ke; Lixiong Zhang

doi:10.1016/j.matlet.2017.02.066

Continuous fabrication of calcium sulfate whiskers with adjustable aspect ratio in microdroplets

Yunfei Qi, Changfeng Zeng, Chongqing Wang, Xuebin Ke, Lixiong Zhang

化工学院

科研成果: 期刊稿件 › 文章 › 同行评审

14 引用（Scopus）

摘要

Hemi-hydrate and anhydrous CaSO₄ whiskers with adjustable aspect ratio were continuously synthesized by the reactive crystallization of CaCl₂ to K₂S₂O₈ in microdroplets. The effects of solvent and reactive temperature were examined, with SEM and XRD characterizations. Hemi-hydrate and anhydrous CaSO₄ whiskers can be, respectively, obtained in aqueous and N,N-dimethylformamide solutions at 90 °C in 180 s. The addition of ethylene glycol or glycerol as well as increasing temperature could lead to the increase in length and aspect ratio of the whiskers. Thus this preparation technique provides a simple continuous route to synthesize CaSO₄ whiskers with two kinds of crystal structures in a short time, and adjustable lengths and aspect ratios.

源语言	英语
页（从-至）	231-233
页数	3
期刊	Materials Letters
卷	194
DOI	https://doi.org/10.1016/j.matlet.2017.02.066
出版状态	已出版 - 1 5月 2017

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title = "Continuous fabrication of calcium sulfate whiskers with adjustable aspect ratio in microdroplets",

abstract = "Hemi-hydrate and anhydrous CaSO4 whiskers with adjustable aspect ratio were continuously synthesized by the reactive crystallization of CaCl2 to K2S2O8 in microdroplets. The effects of solvent and reactive temperature were examined, with SEM and XRD characterizations. Hemi-hydrate and anhydrous CaSO4 whiskers can be, respectively, obtained in aqueous and N,N-dimethylformamide solutions at 90 °C in 180 s. The addition of ethylene glycol or glycerol as well as increasing temperature could lead to the increase in length and aspect ratio of the whiskers. Thus this preparation technique provides a simple continuous route to synthesize CaSO4 whiskers with two kinds of crystal structures in a short time, and adjustable lengths and aspect ratios.",

keywords = "CaSO, Crystal growth, Crystal structure, Whiskers",

author = "Yunfei Qi and Changfeng Zeng and Chongqing Wang and Xuebin Ke and Lixiong Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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day = "1",

doi = "10.1016/j.matlet.2017.02.066",

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T1 - Continuous fabrication of calcium sulfate whiskers with adjustable aspect ratio in microdroplets

AU - Qi, Yunfei

AU - Zeng, Changfeng

AU - Wang, Chongqing

AU - Ke, Xuebin

AU - Zhang, Lixiong

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Hemi-hydrate and anhydrous CaSO4 whiskers with adjustable aspect ratio were continuously synthesized by the reactive crystallization of CaCl2 to K2S2O8 in microdroplets. The effects of solvent and reactive temperature were examined, with SEM and XRD characterizations. Hemi-hydrate and anhydrous CaSO4 whiskers can be, respectively, obtained in aqueous and N,N-dimethylformamide solutions at 90 °C in 180 s. The addition of ethylene glycol or glycerol as well as increasing temperature could lead to the increase in length and aspect ratio of the whiskers. Thus this preparation technique provides a simple continuous route to synthesize CaSO4 whiskers with two kinds of crystal structures in a short time, and adjustable lengths and aspect ratios.

AB - Hemi-hydrate and anhydrous CaSO4 whiskers with adjustable aspect ratio were continuously synthesized by the reactive crystallization of CaCl2 to K2S2O8 in microdroplets. The effects of solvent and reactive temperature were examined, with SEM and XRD characterizations. Hemi-hydrate and anhydrous CaSO4 whiskers can be, respectively, obtained in aqueous and N,N-dimethylformamide solutions at 90 °C in 180 s. The addition of ethylene glycol or glycerol as well as increasing temperature could lead to the increase in length and aspect ratio of the whiskers. Thus this preparation technique provides a simple continuous route to synthesize CaSO4 whiskers with two kinds of crystal structures in a short time, and adjustable lengths and aspect ratios.

KW - CaSO

KW - Crystal growth

KW - Crystal structure

KW - Whiskers

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DO - 10.1016/j.matlet.2017.02.066

M3 - 文章

AN - SCOPUS:85013798635

SN - 0167-577X

VL - 194

SP - 231

EP - 233

JO - Materials Letters

JF - Materials Letters

ER -

Continuous fabrication of calcium sulfate whiskers with adjustable aspect ratio in microdroplets

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