High-performance solid-state supercapacitors based on graphene-ZnO hybrid nanocomposites
TL;DR: The results demonstrate the potential of the graphene-ZnO hybrid nanocomposites as an electrode in high-performance supercapacitors.
read more
Abstract: In this paper, we report a facile low-cost synthesis of the graphene-ZnO hybrid nanocomposites for solid-state supercapacitors. Structural analysis revealed a homogeneous distribution of ZnO nanorods that are inserted in graphene nanosheets, forming a sandwiched architecture. The material exhibited a high specific capacitance of 156 F g−1 at a scan rate of 5 mV.s−1. The fabricated solid-state supercapacitor device using these graphene-ZnO hybrid nanocomposites exhibits good supercapacitive performance and long-term cycle stability. The improved supercapacitance property of these materials could be ascribed to the increased conductivity of ZnO and better utilization of graphene. These results demonstrate the potential of the graphene-ZnO hybrid nanocomposites as an electrode in high-performance supercapacitors.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
One pot hydrothermal growth of hierarchical nanostructured Ni3S2 on Ni foam for supercapacitor application
Karthikeyan Krishnamoorthy,Ganesh Kumar Veerasubramani,Sivaprakasam Radhakrishnan,Sang-Jae Kim +3 more
TL;DR: In this article, the formation of hierarchical nanostructures of nest-like Ni3S2 grown on Ni foam by a one pot hydrothermal route and used it as a binder free electrode for high performance supercapacitors was demonstrated.
314
Synthesis, optimization and applications of ZnO/polymer nanocomposites.
Deepalekshmi Ponnamma,John-John Cabibihan,Mariappan Rajan,Sethu Sundar Pethaiah,Kalim Deshmukh,Jyoti Prasad Gogoi,S. K. Khadheer Pasha,M. Basheer Ahamed,Jagadish Krishnegowda,Bananakere Nanjegowda Chandrashekar,Anji Reddy Polu,Chun Cheng +11 more
TL;DR: A review of various polymer composites consisting of ZnO nanoparticles (NPs) as reinforcements, exhibiting excellent properties for applications such as the dielectric, sensing, piezoelectrics, electromagnetic shielding, thermal conductivity and energy storage.
244
Fruit peel extract mediated green synthesis of zinc oxide nanoparticles
O. Nava,C.A. Soto-Robles,C.M. Gómez-Gutiérrez,Alfredo R. Vilchis-Nestor,A. Castro-Beltrán,Amelia Olivas,P.A. Luque +6 more
TL;DR: In this article, the photocatalytic properties of green synthesis of zinc oxide nanoparticles were investigated using different fruit peel extracts as reducing agents. But the results showed that most samples exhibited degradation rates at 180min of around 97%, a major improvement when compared to chemically synthesized commercially available zinc oxide particles.
236
Photocatalytic reduction synthesis of SrTiO3-graphene nanocomposites and their enhanced photocatalytic activity.
TL;DR: In this paper, the photocatalytic activity of as-prepared SrTiO3-graphene composites was evaluated by the degradation of acid orange 7 (AO7) under a 254-nm UV irradiation.
Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
W.K. Chee,Hong Ngee Lim,Ian Harrison,Kwok Feng Chong,Zulkarnain Zainal,C.H. Ng,Nay Ming Huang +6 more
TL;DR: In this paper, a supercapacitor was fabricated by sandwiching a filter paper immersed in a sodium sulfate solution between two nickel foam electrodes coated with the PPy/GO/ZnO nanocomposite.
228
References
Preparation of graphitic acid
Abstract: The preparation of graphitic oxide by methods described in the literature is time consuming and hazardous. A rapid, relatively safe method has been developed for preparing graphitic oxide from graphite in what is essentially an anhydrous mixture of sulfuric acid, sodium nitrate and potassium permanganate.
27.5K
Advanced Materials for Energy Storage
TL;DR: This Review introduces several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage, and the current status of high-performance hydrogen storage materials for on-board applications and electrochemicals for lithium-ion batteries and supercapacitors.
4.5K
Laser Scribing of High-Performance and Flexible Graphene-Based Electrochemical Capacitors
TL;DR: It is shown that graphite oxide sheets can be converted by infrared laser irradiation into porous graphene sheets that are flexible, robust, and highly conductive, and hold promise for high-power, flexible electronics.
Large reversible Li storage of graphene nanosheet families for use in rechargeable lithium ion batteries.
TL;DR: The lithium storage properties of graphene nanosheet (GNS) materials as high capacity anode materials for rechargeable lithium secondary batteries (LIB) were investigated and the specific capacity of GNS was found to be 540 mAh/g, which is much larger than that of graphite, and this was increased by the incorporation of macromolecules of CNT and C60 to the GNS.
2.9K
Hydrogen-Treated TiO2 Nanowire Arrays for Photoelectrochemical Water Splitting
Gongming Wang,Hanyu Wang,Yichuan Ling,Yuechao Tang,Xunyu Yang,Robert Carl Fitzmorris,Changchun Wang,Jin Z. Zhang,Yat Li +8 more
TL;DR: The first demonstration of hydrogen treatment as a simple and effective strategy to fundamentally improve the performance of TiO(2) nanowires for photoelectrochemical (PEC) water splitting and opening up new opportunities in various areas, including PEC water splitting, dye-sensitized solar cells, and photocatalysis.
2.5K