2026-04-14T05:10:26Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/34072025-10-22T11:08:04Zcom_2072_4428com_2072_4427col_2072_487898

Prussian blue anchored on reduced graphene oxide substrate achieving high voltage in symmetric supercapacitor Avila, Lindiomar Borges Serrano, Pablo A. Quispe, Luis Torres Dantas, Adriana Costa, Diogo Pontes Arizaca, Edy Elar Cuevas Chávez, Diana Patricia Paredes Portugal, César Daniel Valdivia Müller, Christian Klaus Indústries Alimentàries Qualitat i Tecnologia Alimentària 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. 2025-10-22T11:08:04Z 2025-10-22T11:08:04Z 2025-10-22T11:08:04Z 2024-08-01 info:eu-repo/semantics/article Avila, Lindiomar Borges, Pablo A. Serrano, Luis Torres Quispe, Adriana Dantas, Diogo Pontes Costa, Edy Elar Arizaca, and Diana Patricia Chávez et al. 2024. “Prussian blue anchored on reduced graphene oxide substrate achieving high voltage in symmetric supercapacitor”. Materials 17(15): 3782. doi:10.3390/ma17153782. 1996-1944 http://hdl.handle.net/20.500.12327/3407 https://doi.org/10.3390/ma17153782 eng Materials http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Attribution 4.0 International MDPI