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

00925njm 22002777a 4500 dc Avila, Lindiomar Borges author Serrano, Pablo A. author Quispe, Luis Torres author Dantas, Adriana author Costa, Diogo Pontes author Arizaca, Edy Elar Cuevas author Chávez, Diana Patricia Paredes author Portugal, César Daniel Valdivia author Müller, Christian Klaus author 2024-08-01 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. 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 Prussian blue anchored on reduced graphene oxide substrate achieving high voltage in symmetric supercapacitor