Laser synthesis of NixZnyO/reduced graphene oxide/carbon nanotube electrodes for energy storage applications
| Autor: | A. Pérez del Pino, Constantin Logofatu, Eniko Gyorgy, P. García Lebière |
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| Přispěvatelé: | Ministerio de Economía, Industria y Competitividad (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Supercapacitor
Materials science Graphene Non-blocking I/O Oxide General Physics and Astronomy Nanoparticle 02 engineering and technology Surfaces and Interfaces General Chemistry Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Evaporation (deposition) 0104 chemical sciences Surfaces Coatings and Films law.invention chemistry.chemical_compound chemistry Chemical engineering law 0210 nano-technology Bimetallic strip |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Digital.CSIC: Repositorio Institucional del CSIC Consejo Superior de Investigaciones Científicas (CSIC) |
| ISSN: | 2017-8921 |
| Popis: | Porous multicomponent surface layers consisting of bimetallic oxide nanoparticles, carbon nanomaterials reduced graphene oxide (GO) and multiwall carbon nanotubes (MWCNTs) were prepared by reactive inverse matrix assisted pulsed laser evaporation. The layers were tested as electrodes for supercapacitor devices. Bimetallic oxide nanoparticles were grown through the mixing of simple inorganic oxides and organic compounds in distilled water. A frequency quadrupled Nd:YAG laser was used for the irradiation of the target dispersions consisting of GO platelets, MWCNTs, NiO, and Zn acetate. Besides oxide nanoparticles synthesis, which were present both on the surface of GO platelets and MWCTs and were also encapsulated within the MWCNTs walls, the GO platelets used for the preparation of the target dispersion were reduced under the effect of the laser pulses. An enhancement of the electrochemical performances of the nanohybrid electrodes were obtained as a results of the formation of bimetallic oxide nanoparticles. The electrodes exhibit fast charge–discharge cycling rate and improved storage capacity as compared to compound layer counterparts containing carbon nanomaterials, reduced graphene oxide, carbon nanotubes and simple binary transition metal oxide nanoparticles, 40F/cm3 volumetric capacitance at 10 mV/s scan rate, 1.5 mW/cm3 energy density and 12 W/cm3 power density at 4 mA/cm3 current density. The authors thank the financial support of the Spanish Ministry of Economy, Industry and Competitiveness under the project ENE2017-89210-C2-1-R, AEI/FEDER,EU. PGL thanks the financial support of the Spanish Ministry of Economy, Industry and Competitiveness through the grant BES-2017-081652 for the formation of scientific researchers. ICMAB acknowledges financial support from the Spanish Ministry of Economy and Competitiveness, through the “Severo Ochoa” Programme for Centres of Excellence in R&D (CEX2019-000917-S). |
| Databáze: | OpenAIRE |
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