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10.3390/ma17153782
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Article

Prussian Blue Anchored on Reduced Graphene Oxide Substrate Achieving High Voltage in Symmetric Supercapacitor

by
Lindiomar Borges Avila
1,
Pablo A. Serrano
1,2,
Luis Torres Quispe
2,
Adriana Dantas
3,
Diogo Pontes Costa
1,
Edy Elar Cuevas Arizaca
4,
Diana Patricia Paredes Chávez
4,
César Daniel Valdivia Portugal
4 and
Christian Klaus Müller
5,*
1
Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil
2
Escuela Profesional de Física, Universidad Nacional de San Agustín de Arequipa, Av. Independencia s/n, Arequipa 04000, Peru
3
Food Processing and Engineering Programme, Institute of Agrifood Research and Technology (IRTA), 17121 Monells, Spain
4
Vicerrectorado de Investigación, Universidad Católica de Santa María, Arequipa 04000, Peru
5
Faculty of Physical Engineering/Computer Sciences, University of Applied Sciences Zwickau, 08056 Zwickau, Germany
*
Author to whom correspondence should be addressed.
Materials 2024, 17(15), 3782; https://doi.org/10.3390/ma17153782
Submission received: 2 June 2024 / Revised: 20 June 2024 / Accepted: 5 July 2024 / Published: 1 August 2024
(This article belongs to the Special Issue Advanced Electrode Materials and Novel Device Designs for Supercapacitors)
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Abstract

In this work, iron hexacyanoferrate (FeHCF—Prussian blue) particles have been grown onto a reduced graphene oxide substrate through a pulsed electrodeposition process. Thus, the prepared FeHCF electrode exhibits a specific volumetric capacitance of 88 F cm−3 (specific areal capacitance of 26.6 mF cm−2) and high cycling stability with a capacitance retention of 93.7% over 10,000 galvanostatic charge–discharge cycles in a 1 M 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 a 1 M KCl electrolyte and demonstrates a large energy density of 27.5 mWh cm−3 at a high power density of 330 W cm−3.
Keywords: Prussian blue; graphene; supercapacitor electrode; symmetric supercapacitor Prussian blue; graphene; supercapacitor electrode; symmetric supercapacitor

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MDPI and ACS Style

Avila, L.B.; Serrano, P.A.; Quispe, L.T.; Dantas, A.; Costa, D.P.; Arizaca, E.E.C.; Chávez, D.P.P.; Portugal, C.D.V.; Müller, C.K. Prussian Blue Anchored on Reduced Graphene Oxide Substrate Achieving High Voltage in Symmetric Supercapacitor. Materials 2024, 17, 3782. https://doi.org/10.3390/ma17153782

AMA Style

Avila LB, Serrano PA, Quispe LT, Dantas A, Costa DP, Arizaca EEC, Chávez DPP, Portugal CDV, Müller CK. Prussian Blue Anchored on Reduced Graphene Oxide Substrate Achieving High Voltage in Symmetric Supercapacitor. Materials. 2024; 17(15):3782. https://doi.org/10.3390/ma17153782

Chicago/Turabian Style

Avila, Lindiomar Borges, Pablo A. Serrano, Luis Torres Quispe, Adriana Dantas, Diogo Pontes Costa, Edy Elar Cuevas Arizaca, Diana Patricia Paredes Chávez, César Daniel Valdivia Portugal, and Christian Klaus Müller. 2024. "Prussian Blue Anchored on Reduced Graphene Oxide Substrate Achieving High Voltage in Symmetric Supercapacitor" Materials 17, no. 15: 3782. https://doi.org/10.3390/ma17153782

APA Style

Avila, L. B., Serrano, P. A., Quispe, L. T., Dantas, A., Costa, D. P., Arizaca, E. E. C., Chávez, D. P. P., Portugal, C. D. V., & Müller, C. K. (2024). Prussian Blue Anchored on Reduced Graphene Oxide Substrate Achieving High Voltage in Symmetric Supercapacitor. Materials, 17(15), 3782. https://doi.org/10.3390/ma17153782

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