Synthesis, Growth Mechanism, and Electrochemical Properties of Hollow Mesoporous Carbon Spheres with Controlled Diameter

被引：133

作者：

Chen, Xuecheng ^{[1
]}

Kierzek, Krzysztof ^{[2
]}

Jiang, Zhiwei ^{[3
]}

Chen, Hongmin ^{[4
]}

Tang, Tao ^{[3
]}

Wojtoniszak, Malgorzata ^{[1
]}

Kalenczuk, Ryszard J. ^{[1
]}

Chu, Paul K. ^{[4
]}

Borowiak-Palen, Ewa ^{[1
]}

机构：

[1] W Pomeranian Univ Technol, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland

[2] Wroclaw Univ Technol, Dept Polymer & Carbonaceous Mat, PL-50344 Wroclaw, Poland

[3] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[4] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 36期

关键词：

CORE/MESOPOROUS SHELL CARBON; EFFICIENT CATALYST SUPPORT; TEMPLATE SYNTHESIS; LITHIUM INSERTION; SILICA; CORE; FABRICATION; POLYACRYLONITRILE; NANOSPHERES; CHEMISTRY;

D O I：

10.1021/jp205257u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hollow mesoporous carbon spheres with controllable diameters have been fabricated from core-shell structured mesoporous silica sphere templates using chemical vapor deposition (CVD). By controlling the thickness of the silica shell, hollow carbon spheres with different diameters are obtained. The use of ethylene as the carbon precursor produces mesoporous graphitic hollow carbon spheres. The hollow carbon spheres have a relatively large degree of graphitization together with good meso-structural order and high specific surface area of 771 m(2)/g. The mechanism governing the formation of the hollow spheres is studied, and the importance of the surfactant (CTAB) is also clarified. CTAB accelerates the carbon deposition process, thus improving the product yield. These hollow carbon spheres that have good electrochemical properties are suitable for lithium ion batteries.

引用

页码：17717 / 17724

页数：8

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