Symmetrical Supercapacitor with Graphene-Supported Iron Hexacyanoferrate Electrodes: Wide Potential Window and High Energy Density
- In this work, iron hexacyanoferrate (FeHCF) particles have been grown onto graphene substrate through pulsed electrodeposition process. Thus, prepared FeHCF electrode exhibits volumetric capacitance of 88 F cm− 3 (a real capacitance of 26.6 mF cm− 2) and high cycling stability with capacitance retention of 93.7% under deep repeating of 10000 galvanostatic charge-discharge cycles in 1M KCl electrolyte. Furthermore, two identical FeHCF electrodes were paired up in order to construct a symmetrical supercapacitor, which delivers a wide potential window of 2 V in 1M KCl electrolyte, and demonstrates large energy density with an offer of high power density.
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| Author: | Lindiomar Borges de Avila Junior, Pablo Cesar Serrano Arambulo, Luis Torres Quispe, Adriana Dantas, Diogo Pontes Costa, Edy E. Cuevas Arizaca, Diana Patricia Paredes Chávez, Cesar Danial Valdivia Portugal, Christian Klaus Müller |
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| DOI: | https://doi.org/10.21203/rs.3.rs-3848646/v1 |
| Publisher: | Research Square Platform LLC |
| Document Type: | Preprint |
| Language: | English |
| Year of first Publication: | 2024 |
| Page Number: | 17 |
| Faculty: | Westsächsische Hochschule Zwickau / Physikalische Technik, Informatik |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik |
| Open Access: | open_access |
| Release Date: | 2024/08/08 |
| Licence (German): |  Creative Commons 4.0 International - Namensnennung |
