Structure and Electrochemical Properties of Mn₃O₄ Nanocrystal-Coated Porous Carbon Microfiber Derived from Cotton

Dongya Sun; Liwen He; Yongle Lai; Jiqiong Lian; Jingjing Sun; An Xie; Bizhou Lin

doi:10.3390/ma11101987

Structure and Electrochemical Properties of Mn₃O₄ Nanocrystal-Coated Porous Carbon Microfiber Derived from Cotton

Materials (Basel). 2018 Oct 15;11(10):1987. doi: 10.3390/ma11101987.

Authors

Dongya Sun^{1

2}, Liwen He^{3

4}, Yongle Lai⁵, Jiqiong Lian⁶, Jingjing Sun⁷, An Xie⁸, Bizhou Lin⁹

Affiliations

¹ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. 2013123205@xmut.edu.cn.
² Fujian Key Laboratory of Photoelectric Functional Materials, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. 2013123205@xmut.edu.cn.
³ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. heliwen@hqu.edu.cn.
⁴ Fujian Key Laboratory of Photoelectric Functional Materials, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. heliwen@hqu.edu.cn.
⁵ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. 2013123201@xmut.edu.cn.
⁶ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. 2013123202@xmut.edu.cn.
⁷ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. 2015000093@xmut.edu.cn.
⁸ Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China. anxie@xmut.edu.cn.
⁹ Fujian Key Laboratory of Photoelectric Functional Materials, College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. bzlinhqu@126.com.

Abstract

Biomorphic Mn₃O₄ nanocrystal/porous carbon microfiber composites were hydrothermally fabricated and subsequently calcined using cotton as a biotemplate. The as-prepared material exhibited a specific capacitance of 140.8 F·g^-1 at 0.25 A·g^-1 and an excellent cycle stability with a capacitance retention of 90.34% after 5000 cycles at 1 A·g^-1. These characteristics were attributed to the introduction of carbon fiber, the high specific surface area, and the optimized microstructure inherited from the biomaterial.

Keywords: MnO2; biotemplate; carbon microfibers; electrochemical properties; energy storage and conversion; microstructure.

Abstract

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