IN‐SITU GROWTH OF 2D TO 3D NiO ON NICKEL FOAM WITH ENHANCED CAPACITY RETENTION AS BATTERY‐TYPE ELECTRODE FOR ASYMMETRIC SUPERCAPACITOR DOI
Siti Wihdatul Himmah, Ni Luh Wulan Septiani, Shofarul Wustoni

и другие.

ChemNanoMat, Год журнала: 2024, Номер 10(11)

Опубликована: Июль 25, 2024

Abstract This work presents a systematic study to synthesize NiO on nickel foam (NF) using straightforward and cost‐efficient hydrothermal method, followed by calcination. Through comprehensive physicochemical analyses, it was demonstrated that the properties of NF@NiO could be modulated adjusting concentration (II) nitrate hexahydrate precursor. Notably, morphological transition from 2D sheet‐like structure 3D rambutan‐like formation observed as precursor increased. The best‐performing 4 mM showed maximum areal capacity 723 mC cm −2 (equivalent 547.73 F g −1 ) at current density 0.5 mA . electrode also maintained remarkable cycle stability, retaining 78.9% its capacitance after 10,000 cycles 50 in 2 M KOH. Furthermore, assembled asymmetric supercapacitor (ASC) (NiO mM//AC) achieved specific 64.79 1 A with an energy 17.63 Wh kg power 700 W

Язык: Английский

IN‐SITU GROWTH OF 2D TO 3D NiO ON NICKEL FOAM WITH ENHANCED CAPACITY RETENTION AS BATTERY‐TYPE ELECTRODE FOR ASYMMETRIC SUPERCAPACITOR DOI
Siti Wihdatul Himmah, Ni Luh Wulan Septiani, Shofarul Wustoni

и другие.

ChemNanoMat, Год журнала: 2024, Номер 10(11)

Опубликована: Июль 25, 2024

Abstract This work presents a systematic study to synthesize NiO on nickel foam (NF) using straightforward and cost‐efficient hydrothermal method, followed by calcination. Through comprehensive physicochemical analyses, it was demonstrated that the properties of NF@NiO could be modulated adjusting concentration (II) nitrate hexahydrate precursor. Notably, morphological transition from 2D sheet‐like structure 3D rambutan‐like formation observed as precursor increased. The best‐performing 4 mM showed maximum areal capacity 723 mC cm −2 (equivalent 547.73 F g −1 ) at current density 0.5 mA . electrode also maintained remarkable cycle stability, retaining 78.9% its capacitance after 10,000 cycles 50 in 2 M KOH. Furthermore, assembled asymmetric supercapacitor (ASC) (NiO mM//AC) achieved specific 64.79 1 A with an energy 17.63 Wh kg power 700 W

Язык: Английский

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