Hierarchical [email protected] Nanoflowers: Synthesis and Electrochemical Properties as an Advanced Negative Material for Alkaline Secondary Batteries

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Laboratory of Inorganic Functional Materials, School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin 300071, China
§ Key Laboratory for Micro-/Nano-Optoelectronic Devices of the Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia
Cite this: ACS Appl. Mater. Interfaces 2015, 7, 43, 23978–23983
Publication Date (Web):October 13, 2015
Copyright © 2015 American Chemical Society
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Hierarchical [email protected] nanoflowers have been facilely synthesized via a simple route based on a low-temperature solid-phase reaction. The obtained hierarchical [email protected] nanoflowers, each constructed of a number of nanosheets, display a three-dimensional architecture with an average grain size of about 300 nm. The electrochemical properties of the [email protected] nanoflowers as the negative material for Ni/Co cells have been systemically researched. In particular, [email protected] material exhibits high discharge-specific capacity and good cycling stability. The discharge-specific capacity of our [email protected] electrode can reach 612.1 mA h g–1, and the specific capacity of 415.3 mA h g–1 is retained at a current density of 500 mA g–1 after 120 cycles, indicating its great potential for high-performance Ni/Co batteries. Interestingly, the as-synthesized [email protected] electrode also exhibits favorable rate capability. These desirable properties can be attributed to porous pathways, which allow fast transportation of ions and electrons and easy accessibility to the electrolyte. The dominant electrochemical mechanism of [email protected] can be attributed to the reduction–oxidation reaction between metallic cobalt and cobalt hydroxide in alkaline solution.

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  7. Jiajing Wu, Jianghua Zhang, Yongjian Ai, Jifan Li, Xinyue Zhang, Ze-Nan Hu, He Wang, Qionglin Liang, Hong-bin Sun. Cobalt-promoted fabrication of 3D carbon with a nanotube-sheet mutual support structure: scalable preparation of a high-performance anode material for Li-ion batteries. Nanotechnology 2020, 31 (8) , 085402.
  8. Gaoxue Jiang, Li Li, Zhengjun Xie, Bingqiang Cao. Facile fabrication of porous [email protected] nanowire as high performance anode material for lithium ion batteries. Ceramics International 2019, 45 (15) , 18462-18470.
  9. Meng Huang, Ming Li, Chaojiang Niu, Qi Li, Liqiang Mai. Recent Advances in Rational Electrode Designs for High-Performance Alkaline Rechargeable Batteries. Advanced Functional Materials 2019, 29 (11) , 1807847.
  10. Junjie Qiu, Engao Dai, Jiao Xu, Shucheng Liu, Yi Liu. Functionalized MOFs-controlled formation of novel Ni-Co [email protected] hybrid as the electrodes for supercapacitor. Materials Letters 2018, 216 , 207-211.
  11. Li Li, Gaoxue Jiang, Huanrong Tian, Yijing Wang. Effect of the hierarchical [email protected] nanoflowers on the hydrogen storage properties of MgH2. International Journal of Hydrogen Energy 2017, 42 (47) , 28464-28472.
  12. Enbo Shangguan, Litan Guo, Fei Li, Qin Wang, Jing Li, Quanmin Li, Zhaorong Chang, Xiao-Zi Yuan. FeS anchored reduced graphene oxide nanosheets as advanced anode material with superior high-rate performance for alkaline secondary batteries. Journal of Power Sources 2016, 327 , 187-195.
  13. Susanta Bera, Atanu Naskar, Moumita Pal, Sunirmal Jana. ZnO–graphene–polyaniline nanoflowers: solution synthesis, formation mechanism and electrochemical activity. RSC Advances 2016, 6 (47) , 40854-40857.