Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks
Three-dimensional hierarchical Co3O4 nanobooks have been synthesized successfully on a large scale by calcining orthorhombic Co(CO3)0.5(OH)·0.11H2O precursors with identical morphologies. Based on the influence of reaction time and urea concentration on the nanostructures of the precursors, a stepwi...
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doaj-040240885a144f9297f6e506c0f9e0732020-11-24T23:49:53ZengMDPI AGNanomaterials2079-49912017-04-01748110.3390/nano7040081nano7040081Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 NanobooksHuilong Chen0Shuang Lu1Feilong Gong2Huanzhen Liu3Feng Li4State Laboratory of Surface and Interface Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaState Laboratory of Surface and Interface Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaState Laboratory of Surface and Interface Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaState Laboratory of Surface and Interface Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, ChinaAmerican Advanced Nanotechnology, Houston, TX 77459, USAThree-dimensional hierarchical Co3O4 nanobooks have been synthesized successfully on a large scale by calcining orthorhombic Co(CO3)0.5(OH)·0.11H2O precursors with identical morphologies. Based on the influence of reaction time and urea concentration on the nanostructures of the precursors, a stepwise splitting growth mechanism can be proposed to understand the formation of the 3D nanobooks. The 3D Co3O4 nanobooks exhibit excellent pseudocapacitive performances with specific capacitances of 590, 539, 476, 453, and 421 F/g at current densities of 0.5, 1, 2, 4, and 8 A/g, respectively. The devices can retain ca. 97.4% of the original specific capacitances after undergoing charge–discharge cycle tests 1000 times continuously at 4 A/g.http://www.mdpi.com/2079-4991/7/4/81Co3O4nanobookspseudocapacitorsstepwise splittinghierarchical materials |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Huilong Chen Shuang Lu Feilong Gong Huanzhen Liu Feng Li |
spellingShingle |
Huilong Chen Shuang Lu Feilong Gong Huanzhen Liu Feng Li Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks Nanomaterials Co3O4 nanobooks pseudocapacitors stepwise splitting hierarchical materials |
author_facet |
Huilong Chen Shuang Lu Feilong Gong Huanzhen Liu Feng Li |
author_sort |
Huilong Chen |
title |
Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks |
title_short |
Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks |
title_full |
Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks |
title_fullStr |
Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks |
title_full_unstemmed |
Stepwise Splitting Growth and Pseudocapacitive Properties of Hierarchical Three-Dimensional Co3O4 Nanobooks |
title_sort |
stepwise splitting growth and pseudocapacitive properties of hierarchical three-dimensional co3o4 nanobooks |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2017-04-01 |
description |
Three-dimensional hierarchical Co3O4 nanobooks have been synthesized successfully on a large scale by calcining orthorhombic Co(CO3)0.5(OH)·0.11H2O precursors with identical morphologies. Based on the influence of reaction time and urea concentration on the nanostructures of the precursors, a stepwise splitting growth mechanism can be proposed to understand the formation of the 3D nanobooks. The 3D Co3O4 nanobooks exhibit excellent pseudocapacitive performances with specific capacitances of 590, 539, 476, 453, and 421 F/g at current densities of 0.5, 1, 2, 4, and 8 A/g, respectively. The devices can retain ca. 97.4% of the original specific capacitances after undergoing charge–discharge cycle tests 1000 times continuously at 4 A/g. |
topic |
Co3O4 nanobooks pseudocapacitors stepwise splitting hierarchical materials |
url |
http://www.mdpi.com/2079-4991/7/4/81 |
work_keys_str_mv |
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