Assembly of Ni(OH)2-graphene hybrids with a high electrochemical performance by a one-pot hydrothermal method
Source abstract
Abstract
A Ni(OH)2-graphenehybrid with a three dimensional (3D) interconnected graphene network was prepared by a simple one-pot hydrothermal method. The 3D structure constructed of flexible and planar graphene sheets (GS) forms an effective electron transfer network and provides a continuous pore structure for ion transport. Moreover, this structure avoids the aggregation of GS and Ni(OH)2, resulting in a high utilization rate of Ni(OH)2 at high contents. This study shows the hybrid has a high rate capability and cyclic stability and exhibits a high specific capacitance of ∼1 461 F·g−1 at a scan rate of 5 mV·s−1 with a Ni(OH)2 mass loading of ∼84 mass%.
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Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
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1. Materials for electrochemical capacitors[J]10.1038/nmat2297 ↗
2. Energy storage in electrochemical capacitors: designing functional materials to improve performance[J]10.1039/c0ee00004c ↗
3. A review of electrode materials for electrochemical supercapacitors[J]10.1039/C1CS15060J ↗
4. Templated synthesis of nitrogen-enriched nanoporous carbon materials from porogenic organic precursors prepared by ATRP[J]10.1002/ange.201309836 ↗
5. Ultracapacitors: why, how, and where is the technology[J]10.1016/S0378-7753(00)00485-7 ↗
6. Graphene-based macroform: preparation, properties and applications[J]
7. Carbon microfibers with hierarchical porous structure from electrospun fiber-like natural biopolymer[J]10.1038/srep01119 ↗
8. The role of mass transport pathway in wormholelike mesoporous carbon for supercapacitors[J]10.1039/c003213a ↗
9. Synthesis of well-defined microporous carbons by molecular-scale templating with polyhedral oligomeric silsesquioxane moieties[J]10.1021/ja412192v ↗
10. Fabrication of novel polymeric and carbonaceous nanoscale networks by the union of self-assembly and hypercrosslinking[J]10.1039/C4EE00941J ↗
11. One-step strategy to graphene/Ni(OH)2 composite hydrogels as advanced three-dimensional supercapacitor electrode materials[J]10.1007/s12274-012-0284-4 ↗
12. 3D flowerlike α-nickel hydroxide with enhanced electrochemical activity synthesized by microwave-assisted hydrothermal method [J]10.1021/cm702207w ↗
13. From three-dimensional flower-like α-Ni(OH)2 nanostructures to hierarchical porous NiO nanoflowers: microwave-assisted fabrication and supercapacitor properties[J]10.1111/j.1551-2916.2010.04090.x ↗
14. Synthesis of nanosized nickel hydroxide by solid-state reaction at room temperature[J]10.1016/j.matlet.2003.09.054 ↗
15. Hydrothermal synthesis of β-nickel hydroxide microspheres with flakelike nanostructures and their electrochemical properties[J]10.1016/j.matchemphys.2007.06.015 ↗
16. Ni(OH)2 tubes with mesoscale dimensions as positive-electrode materials of alkaline rechargeable batteries[J]10.1002/anie.200460053 ↗
17. Hydrothermal synthesis of single-crystal Ni(OH)2 nanorods in a carbon-coated anodic alumina film[J]10.1002/1521-4095(20020903)14:17<1216::AID-ADMA1216>3.0.CO;2-A ↗
18. Ni(OH)2 nanoplates grown on graphene as advanced electrochemical pseudocapacitor materials[J]10.1021/ja102267j ↗
19. Structure-dependent electrocatalysis of Ni(OH)2 hourglass-like nanostructures towards L-histidine[J]10.1002/chem.201203009 ↗
20. Preparation of highly conductive graphene hydrogels for fabricating supercapacitors with high rate capability[J]10.1021/jp204036a ↗
21. Ultrahigh-rate supercapacitors based on eletrochemically reduced graphene oxide for ac line-filtering[J]10.1038/srep00247 ↗
22. Graphene hydrogels deposited in nickel foams for high-rate electrochemical capacitors[J]10.1002/adma.201201978 ↗
23. A three-dimensional graphene skeleton as a fast electron and ion transport network for electrochemical applications[J]10.1039/c3ta14315e ↗
24. Nanocrystal growth on graphene with various degrees of oxidation[J]10.1021/ja100329d ↗
25. Mn3O4-graphene hybrid as a high-capacity anode material for lithium ion batteries[J]10.1021/ja105296a ↗
26. Fabrication of cobalt and cobalt oxide/graphene composites: towards high-performance anode materials for lithium ion batteries[J]10.1002/cssc.200900106 ↗
27. Anchoring hydrous RuO2 on graphene sheets for high-performance electrochemical capacitors[J]10.1002/adfm.201001054 ↗
28. A sandwich structure of graphene and nickel oxide with excellent supercapacitive performance[J]10.1039/c1jm10400d ↗
29. Selected-control hydrothermal synthesis of α- and β-MnO2 single crystal nanowires[J]10.1021/ja0177105 ↗