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学科主题物理化学
Silica Microspheres with Fibrous Shells: Synthesis and Application in HPLC
Qu, Qishu1,2; Min, Yi3; Zhang, Lihua3; Xu, Qin4; Yin, Yadong2; QishuQu; QinXu
刊名ANALYTICAL CHEMISTRY
2015-10-06
DOI10.1021/acs.analchem.5b02511
87期:19页:9631-9638
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]PERFORMANCE LIQUID-CHROMATOGRAPHY ; SUPERFICIALLY POROUS PARTICLES ; NARROW-BORE COLUMNS ; CORE-SHELL ; SOLID CORE ; SURFACE ; SEPARATIONS ; NANOSPHERES ; TECHNOLOGY ; THICKNESS
英文摘要Monodispersed silica spheres with solid core and fibrous shell were successfully synthesized using a biphase reaction. Both the thickness and the pore size of the fibrous shell could be finely tuned by changing the stirring rate during synthesis. When stirring was adjusted from 0 to 800 rpm, the thickness of the shell could be tuned from 13 to 67 nm and the pore size from 5 to 16 nm. By continuously adjusting the stirring rate, fibrous shells with hierarchical pore structure ranged from 10 to 28 nm and thickness up to 200 nm could be obtained in one pot. We demonstrate that fibrous shells with controllable thickness and pore size could be coated on silica cores with diameters from 0.5 to 3 mu m while maintaining the monodispersity of the particles. As a result of the unique fibrous structure, the BET surface area could reach similar to 233 m(2) g(-1) even though the shell thickness was less than 150 nm. The core-shell particles were modified with C18, packed, and then used in high-performance liquid chromatography (HPLC) separation, showing separation performance as high as 2.25 x 10(5) plates m(-1) for naphthalene and back pressure as low as 5.8 MPa. These silica microspheres with fibrous shells are expected to have great potential for practical applications in HPLC.
语种英语
WOS记录号WOS:000362628600022
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143700
专题中国科学院大连化学物理研究所
通讯作者QishuQu; QinXu
作者单位1.Anhui Jianzhu Univ, Sch Mat & Chem Engn, Key Lab Funct Mol Design & Interface Proc, Hefei 230601, Peoples R China
2.Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
4.Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China
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GB/T 7714
Qu, Qishu,Min, Yi,Zhang, Lihua,et al. Silica Microspheres with Fibrous Shells: Synthesis and Application in HPLC[J]. ANALYTICAL CHEMISTRY,2015,87(19):9631-9638.
APA Qu, Qishu.,Min, Yi.,Zhang, Lihua.,Xu, Qin.,Yin, Yadong.,...&QinXu.(2015).Silica Microspheres with Fibrous Shells: Synthesis and Application in HPLC.ANALYTICAL CHEMISTRY,87(19),9631-9638.
MLA Qu, Qishu,et al."Silica Microspheres with Fibrous Shells: Synthesis and Application in HPLC".ANALYTICAL CHEMISTRY 87.19(2015):9631-9638.
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