المؤلفون: Dubal, Deepak, Holze, Rudolf, Gomez-Romero, Pedro

المصدر: ChemPlusChem

مصطلحات موضوعية: capacitors, electrochemistry, manganese, nanostructures, solid-state structures

الوصف: Reported is the synthesis of 3D hierarchical structures based on one-dimensional MnO2 nanobuilding blocks (nanorods, nanowires, and nanoneedles) by means of a facile and scalable coprecipitation method and their use as electrodes for the assembly of all-solid-state supercapacitors. Asymmetric devices were also assembled by using these nanostructured MnO2 materials as the positive electrode and reduced graphene oxide (rGO) as the negative electrode with a polymeric gel electrolyte. The asymmetric cells successfully extend the working voltage windows beyond 1.4 V and allowed for a maximum voltage of 1.8 V. An asymmetric device based on hierarchical nanoneedle-like MnO2 and rGO achieved a maximum specific capacitance of 99 Fg-1 at a scan rate of 10 mVs-1 with a stable operational voltage of 1.8 V. This high value allowed for a large specific energy of 24.12 Whkg-1. New builders on the block: The synthesis of 3D hierarchical structures based on 1D MnO2 nanobuilding blocks by means of a facile and scalable coprecipitation method and their use as electrodes for the assembly of all-solid-state supercapacitors is described. The figure show an example of an asymmetric device based on hierarchical nanoneedle (Nn)-like MnO2 and reduced graphene oxide.

العلاقة: Dubal, Deepak, Holze, Rudolf, & Gomez-Romero, Pedro (2015) Three-dimensional arrays of 1D MnO2 nanocrystals for all-solid-state asymmetric supercapacitors. ChemPlusChem, 80(6), pp. 944-951.; https://eprints.qut.edu.au/129744Test/; Institute for Future Environments; Science & Engineering Faculty

الإتاحة: https://doi.org/10.1002/cplu.201500054Test
https://eprints.qut.edu.au/129744Test/

المؤلفون: Dubal, Deepak P., Holze, Rudolf, Gómez-Romero, P.

المساهمون: Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Alexander von Humboldt Foundation

مصطلحات موضوعية: Capacitors, Solid-state structures, Manganese, Nanostructures, Electrochemistry

الوصف: Reported is the synthesis of 3D hierarchical structures based on one-dimensional MnO2 nanobuilding blocks (nanorods, nanowires, and nanoneedles) by means of a facile and scalable coprecipitation method and their use as electrodes for the assembly of all-solid-state supercapacitors. Asymmetric devices were also assembled by using these nanostructured MnO2 materials as the positive electrode and reduced graphene oxide (rGO) as the negative electrode with a polymeric gel electrolyte. The asymmetric cells successfully extend the working voltage windows beyond 1.4 V and allowed for a maximum voltage of 1.8 V. An asymmetric device based on hierarchical nanoneedle-like MnO2 and rGO achieved a maximum specific capacitance of 99 F g−1 at a scan rate of 10 mV s−1 with a stable operational voltage of 1.8 V. This high value allowed for a large specific energy of 24.12 Wh kg−1. ; Funded by: Alexander von Humboldt Foundation;Beatriu de Pinos Program. Grant Number: BP-DGR-2013; Catalan System of Science and Technology and Spanish MINECO. Grant Number: SEV-2013-0295. ; Peer Reviewed

العلاقة: #PLACEHOLDER_PARENT_METADATA_VALUE#; info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2013-0295; Sí; e-issn: 2192-6506; ChemPlusChem 80(6): 944-951 (2015); http://hdl.handle.net/10261/129912Test; http://dx.doi.org/10.13039/501100003329Test; http://dx.doi.org/10.13039/501100002809Test; http://dx.doi.org/10.13039/100005156Test

الإتاحة: https://doi.org/10.1002/cplu.201500054Test
https://doi.org/10.13039/501100003329Test
https://doi.org/10.13039/501100002809Test
https://doi.org/10.13039/100005156Test
http://hdl.handle.net/10261/129912Test

المؤلفون: W Liu, Jun Liu, K Chen, S Ji, Y Wan, Y Zhou, D Xue, Peter Hodgson, Yuncang Li

مصطلحات موضوعية: cathodes, electrochemistry, hollow spheres, lithium-ion batteries, solid-state structures, Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, HIGH-CAPACITY ANODES, FACILE SYNTHESIS, THIN-FILMS, ION, SPINEL, ELECTRODE, STORAGE, MICROCUBES, CONVERSION, FADE

الوصف: Enhancing the electrochemical performance of the LiMn2O4 hollow microsphere cathode with a LiNi0.5Mn1.5O4 coated layer

العلاقة: http://hdl.handle.net/10536/DRO/DU:30060916Test; https://figshare.com/articles/journal_contribution/Enhancing_the_electrochemical_performance_of_the_LiMn2O4_hollow_microsphere_cathode_with_a_LiNi0_5Mn1_5O4_coated_layer/20947429Test

الإتاحة: http://hdl.handle.net/10536/DRO/DU:30060916Test
https://figshare.com/articles/journal_contribution/Enhancing_the_electrochemical_performance_of_the_LiMn2O4_hollow_microsphere_cathode_with_a_LiNi0_5Mn1_5O4_coated_layer/20947429Test