The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors
Ni(OH)<sub>2</sub> derived from an MOF template was synthesized as an electrode material for supercapacitors. The electrochemical performance of the electrode was adjusted by effectively regulating the morphology of Ni(OH)<sub>2</sub>. The evolution of electrochemical perform...
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2020-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/21/4870 |
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| author | Xiao Li Jun Li Ying Zhang Peng Zhao Ruyan Lei Baige Yuan Manman Xia |
| author_facet | Xiao Li Jun Li Ying Zhang Peng Zhao Ruyan Lei Baige Yuan Manman Xia |
| author_sort | Xiao Li |
| collection | DOAJ |
| description | Ni(OH)<sub>2</sub> derived from an MOF template was synthesized as an electrode material for supercapacitors. The electrochemical performance of the electrode was adjusted by effectively regulating the morphology of Ni(OH)<sub>2</sub>. The evolution of electrochemical performance of the electrode with morphology of Ni(OH)<sub>2</sub> was highlighted in detail, based on which honeycomb-like Ni(OH)<sub>2</sub> was successfully synthesized, and endowed the electrode with outstanding electrochemical performance. For the three-electrode testing system, honeycomb-like Ni(OH)<sub>2</sub> exhibited a very high specific capacitance (1865 F·g<sup>−1</sup> at 1 A·g<sup>−1</sup>, 1550 F·g<sup>−1</sup> at 5 mV·s<sup>−1</sup>). Moreover, it also presented an excellent rate capability and cycling stability, due to 59.46 % of the initial value (1 A·g<sup>−1</sup>) being retained at 10 A·g<sup>−1</sup>, and 172% of initial value (first circle at 50 mV·s<sup>−1</sup>) being retained after 20,000 cycles. With respect to the assembled hybrid supercapacitor, honeycomb-like Ni(OH)<sub>2</sub> also displayed superior electrochemical performance, with a high energy density (83.9 Wh·kg<sup>−1</sup> at a power density of 374.8 W·kg<sup>−1</sup>). The outstanding electrochemical performance of Ni(OH)<sub>2</sub> should be attributed to its unique honeycomb-like structure, with a very high specific surface area, which greatly accelerates the transformation and diffusion of active ions. |
| first_indexed | 2024-03-10T15:12:43Z |
| format | Article |
| id | doaj.art-29dbb9870c3d42a79077440cb442b9ac |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T15:12:43Z |
| publishDate | 2020-10-01 |
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| series | Materials |
| spelling | doaj.art-29dbb9870c3d42a79077440cb442b9ac2023-11-20T19:10:31ZengMDPI AGMaterials1996-19442020-10-011321487010.3390/ma13214870The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for SupercapacitorsXiao Li0Jun Li1Ying Zhang2Peng Zhao3Ruyan Lei4Baige Yuan5Manman Xia6School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaSchool of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, ChinaNi(OH)<sub>2</sub> derived from an MOF template was synthesized as an electrode material for supercapacitors. The electrochemical performance of the electrode was adjusted by effectively regulating the morphology of Ni(OH)<sub>2</sub>. The evolution of electrochemical performance of the electrode with morphology of Ni(OH)<sub>2</sub> was highlighted in detail, based on which honeycomb-like Ni(OH)<sub>2</sub> was successfully synthesized, and endowed the electrode with outstanding electrochemical performance. For the three-electrode testing system, honeycomb-like Ni(OH)<sub>2</sub> exhibited a very high specific capacitance (1865 F·g<sup>−1</sup> at 1 A·g<sup>−1</sup>, 1550 F·g<sup>−1</sup> at 5 mV·s<sup>−1</sup>). Moreover, it also presented an excellent rate capability and cycling stability, due to 59.46 % of the initial value (1 A·g<sup>−1</sup>) being retained at 10 A·g<sup>−1</sup>, and 172% of initial value (first circle at 50 mV·s<sup>−1</sup>) being retained after 20,000 cycles. With respect to the assembled hybrid supercapacitor, honeycomb-like Ni(OH)<sub>2</sub> also displayed superior electrochemical performance, with a high energy density (83.9 Wh·kg<sup>−1</sup> at a power density of 374.8 W·kg<sup>−1</sup>). The outstanding electrochemical performance of Ni(OH)<sub>2</sub> should be attributed to its unique honeycomb-like structure, with a very high specific surface area, which greatly accelerates the transformation and diffusion of active ions.https://www.mdpi.com/1996-1944/13/21/4870honeycomb-like structureNi-MOFNi(OH)<sub>2</sub>electrode materialsupercapacitor |
| spellingShingle | Xiao Li Jun Li Ying Zhang Peng Zhao Ruyan Lei Baige Yuan Manman Xia The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors Materials honeycomb-like structure Ni-MOF Ni(OH)<sub>2</sub> electrode material supercapacitor |
| title | The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors |
| title_full | The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors |
| title_fullStr | The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors |
| title_full_unstemmed | The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors |
| title_short | The Evolution in Electrochemical Performance of Honeycomb-Like Ni(OH)<sub>2</sub> Derived from MOF Template with Morphology as a High-Performance Electrode Material for Supercapacitors |
| title_sort | evolution in electrochemical performance of honeycomb like ni oh sub 2 sub derived from mof template with morphology as a high performance electrode material for supercapacitors |
| topic | honeycomb-like structure Ni-MOF Ni(OH)<sub>2</sub> electrode material supercapacitor |
| url | https://www.mdpi.com/1996-1944/13/21/4870 |
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