Formation of Amorphous Calcium Carbonate and Its Transformation Mechanism to Crystalline CaCO3 in Laminar Microfluidics
文献类型：期刊论文
| 作者 | Zeng, Youpeng1,2; Cao, Jianwei1; Wang, Zhi1; Guo, Jianwei1; Lu, Jinshan2 |
| 刊名 | CRYSTAL GROWTH & DESIGN
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 18期号:3页码:1710-1721 |
| ISSN号 | 1528-7483 |
| DOI | 10.1021/acs.cgd.7b01634 |
| 文献子类 | Article |
| 英文摘要 | For traditional experimental methods, the dynamic formation and transformation of amorphous calcium carbonate (ACC) are hard to capture due to its metastability and ease of transforming rapidly to the more stable phase. The emergence of microfluidic technology provides an effective approach on that issue, thus attracting widespread researchers' interest in crystallization research. In this study, based on laminar microfluidics, we demonstrate a microfluidic approach toward the study of the formation and transformation of ACC. Through the control of the velocity and concentration of CaCl2 and Na2CO3, the crystallization process was observed on a chip under the microscope. We show by in situ confocal micro Raman spectroscopy and theoretical calculation based on fluid dynamics simulation that the phase transformation pathways are different under the different supersaturation levels in laminar microfluidics. ACC does not always appear in the crystallization process; when supersaturation above the critical supersaturation of ACC occurred, the crystalline CaCO3 phases appeared after the metastable intermediates ACC through the transformation mechanism of dissolution-recrystallization, while the crystalline CaCO3 phases formed without the intermediates ACC when supersaturation below the critical supersaturation of ACC occurred. Our work provides an approach for the investigation of metastable intermediates and support for one-step and multistep nucleation mechanisms. |
| WOS关键词 | BIOMIMETIC MODEL ; NUCLEATION ; BIOMINERALIZATION ; GROWTH ; PRECIPITATION ; POLYMORPHISM ; SOLUBILITY ; KINETICS ; LIQUIDS |
| WOS研究方向 | Chemistry ; Crystallography ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000427203700051 |
| 资助机构 | National Natural Science Foundation of China(51404225 ; Excellent Youth Project of National Natural Science Foundation of China(51422405) ; 51374192) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/24140]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Youpeng,Cao, Jianwei,Wang, Zhi,et al. Formation of Amorphous Calcium Carbonate and Its Transformation Mechanism to Crystalline CaCO3 in Laminar Microfluidics[J]. CRYSTAL GROWTH & DESIGN,2018,18(3):1710-1721. |
| APA | Zeng, Youpeng,Cao, Jianwei,Wang, Zhi,Guo, Jianwei,&Lu, Jinshan.(2018).Formation of Amorphous Calcium Carbonate and Its Transformation Mechanism to Crystalline CaCO3 in Laminar Microfluidics.CRYSTAL GROWTH & DESIGN,18(3),1710-1721. |
| MLA | Zeng, Youpeng,et al."Formation of Amorphous Calcium Carbonate and Its Transformation Mechanism to Crystalline CaCO3 in Laminar Microfluidics".CRYSTAL GROWTH & DESIGN 18.3(2018):1710-1721. |
入库方式： OAI收割
来源：过程工程研究所
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