Synthesis and characterization of shape-controlled mesoporous Co3O4 hierarchical nanostructures

被引：14

作者：

Yang, Guijin ^{[1
,2
]}

Gao, Daqiang ^{[1
]}

Zhang, Jing ^{[1
]}

Zhang, Jinlin ^{[1
]}

Shi, Zhenhua ^{[1
]}

Zhu, Zhonghua ^{[1
]}

Xue, Desheng ^{[1
]}

机构：

[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China

[2] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 02期

关键词：

ROOM-TEMPERATURE FERROMAGNETISM; MAGNETIC-PROPERTIES; FACILE SYNTHESIS; NANOWIRE ARRAYS; LITHIUM; SUBSTRATE;

D O I：

10.1039/c2ra20794j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hierarchical Co3O4 mesoporous nanostructures have been synthesized by a hydrothermal method combined with subsequent calcination. These hierarchical nanostructures were characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. According to varying the reaction time, three typical kinds of Co3O4 hierarchical nanostructures, i.e., free-standing nanowalls, nanowires-nanowalls, and, nanosheets-nanowires-nanowalls were obtained. The formation of mesoporous Co3O4 nanostructures may be due to the thermal decomposition of the corresponding precursor. Magnetic measurement indicates that the vacuum-annealed Co3O4 samples show room temperature ferromagnetism, while the as-prepared samples are paramagnetic.

引用

页码：508 / 512

页数：5

共 37 条

[1] Porous Co3O4 microcubes: hydrothermal synthesis, catalytic and magnetic properties [J].

Cao, Feng ;

Wang, Deqiang ;

Deng, Ruiping ;

Tang, Jinkui ;

Song, Shuyan ;

Lei, Yongqian ;

Wang, Song ;

Su, Shengqun ;

Yang, Xiangguang ;

Zhang, Hongjie .

CRYSTENGCOMM, 2011, 13 (06) :2123-2129

[2] 3D Fe3S4 flower-like microspheres: high-yield synthesis via a biomolecule-assisted solution approach, their electrical, magnetic and electrochemical hydrogen storage properties [J].

Cao, Feng ;

Hu, Wen ;

Zhou, Liang ;

Shi, Weidong ;

Song, Shuyan ;

Lei, Yongqian ;

Wang, Song ;

Zhang, Hongjie .

DALTON TRANSACTIONS, 2009, (42) :9246-9252

[3] Controlled synthesis of hierarchical Bi2WO6 microspheres with improved visible-light-driven photocatalytic activity [J].

Chen, Zhu ;

Qian, Liwu ;

Zhu, Jun ;

Yuan, Yanping ;

Qian, Xuefeng .

CRYSTENGCOMM, 2010, 12 (07) :2100-2106

[4] Fabrication of ceramic components with hierarchical porosity [J].

Colombo, Paolo ;

Vakifahmetoglu, Cekdar ;

Costacurta, Stefano .

JOURNAL OF MATERIALS SCIENCE, 2010, 45 (20) :5425-5455

[5] High surface area mesoporous Co3O4 from a direct soft template route [J].

Dahal, Naween ;

Ibarra, Ilich A. ;

Humphrey, Simon M. .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (25) :12675-12681

[6] Synthesis of foam-like freestanding Co3O4 nanosheets with enhanced electrochemical activities [J].

Fan, Yuqian ;

Shao, Haibo ;

Wang, Jianming ;

Liu, Liang ;

Zhang, Jianqing ;

Cao, Chunan .

CHEMICAL COMMUNICATIONS, 2011, 47 (12) :3469-3471

[7] Self-supporting Co3O4 with lemongrass-like morphology as a high-performance anode material for lithium ion batteries [J].

Fu, Yujun ;

Li, Xiuwan ;

Sun, Xiaolei ;

Wang, Xinghui ;

Liu, Dequan ;

He, Deyan .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (34) :17429-17431

[8] Room temperature ferromagnetism of pure ZnO nanoparticles [J].

Gao, Daqiang ;

Zhang, Zhaohui ;

Fu, Junli ;

Xu, Yan ;

Qi, Jing ;

Xue, Desheng .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (11) :119

[9] Magnetodielectric effect in Co3O4 nanoparticles grown within a silica glass [J].

Hajra, Partha ;

Dutta, Saurav ;

Brahma, Pradip ;

Chakravorty, Dipankar .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2011, 323 (06) :864-867

[10] Rapid, low-temperature synthesis of single-crystalline Co3O4 nanorods on silicon substrates on a large scale [J].

He, Liang ;

Li, Zhengcao ;

Zhang, Zhengjun .

NANOTECHNOLOGY, 2008, 19 (15)

← 1 2 3 4 →