Fast synthesis of δ-MnO2 for a high-performance supercapacitor electrode
| dc.contributor.author | Cremonezzi J.M.O. | |
| dc.contributor.author | Tiba D.Y. | |
| dc.contributor.author | Domingues S.H. | |
| dc.date.accessioned | 2024-03-12T23:46:35Z | |
| dc.date.available | 2024-03-12T23:46:35Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | © 2020, Springer Nature Switzerland AG.We report a very simple and fast route for a high capacitive birnessite type manganese dioxide (δ-MnO2) synthesis, fully suitable to be applied as electrode in redox-based electrochemical supercapacitors. The material was obtained from a very efficient chemical reduction of potassium permanganate by nascent hydrogen in low temperature acid media. δ-MnO2 was extensively characterized by several techniques confirming the obtainment through the proposed route. The supercapacitive properties of the novel structure were evaluated showing a specific capacitance of 190 F g−1 at 0.25 A.g−1. In addition, to the best of our knowledge, this is the first report regarding the chemical synthesis of δ-MnO2 with no dependence of hazardous reducing agent, high temperature or high pressure commonly used to metal oxides production. | |
| dc.description.issuenumber | 10 | |
| dc.description.volume | 2 | |
| dc.identifier.doi | 10.1007/s42452-020-03488-2 | |
| dc.identifier.issn | 2523-3971 | |
| dc.identifier.uri | https://dspace.mackenzie.br/handle/10899/34903 | |
| dc.relation.ispartof | SN Applied Sciences | |
| dc.rights | Acesso Aberto | |
| dc.subject.otherlanguage | Delta manganese dioxide | |
| dc.subject.otherlanguage | Electrochemical capacitor | |
| dc.subject.otherlanguage | Energy storage | |
| dc.subject.otherlanguage | Nascent hydrogen | |
| dc.title | Fast synthesis of δ-MnO2 for a high-performance supercapacitor electrode | |
| dc.type | Artigo | |
| local.scopus.citations | 31 | |
| local.scopus.eid | 2-s2.0-85100714755 | |
| local.scopus.subject | Chemical reduction | |
| local.scopus.subject | Electrochemical supercapacitor | |
| local.scopus.subject | High temperature | |
| local.scopus.subject | Manganese dioxide | |
| local.scopus.subject | Nascent hydrogens | |
| local.scopus.subject | Potassium permanganate | |
| local.scopus.subject | Specific capacitance | |
| local.scopus.subject | Supercapacitor electrodes | |
| local.scopus.updated | 2024-05-01 | |
| local.scopus.url | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85100714755&origin=inward |