مورد إلكتروني
Three-dimensional arrays of 1D MnO2 nanocrystals for all-solid-state asymmetric supercapacitors
| العنوان: | Three-dimensional arrays of 1D MnO2 nanocrystals for all-solid-state asymmetric supercapacitors |
|---|---|
| المصدر: | ChemPlusChem |
| بيانات النشر: | Wiley-VCH Verlag GmbH & Co. KGaA 2015 |
| تفاصيل مُضافة: | Dubal, Deepak Holze, Rudolf Gomez-Romero, Pedro |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | 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. |
| مصطلحات الفهرس: | capacitors, electrochemistry, manganese, nanostructures, solid-state structures, Contribution to Journal |
| URL: | doi:10.1002/cplu.201500054 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. |
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| أرقام أخرى: | ATUTQ oai:eprints.qut.edu.au:129744 Institute for Future Environments; Science & Engineering Faculty; School of Chemistry, Physics & Mechanical Engineering 1104092035 |
| المصدر المساهم: | QUEENSLAND UNIV OF TECH From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1104092035 |
| قاعدة البيانات: | OAIster |
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