Article 2023 · 9 atıf

Three-dimensional FeNiP decorated graphene sponge: A novel flexible electrode for high-performance asymmetric supercapacitor

Ercarikci, Elif, Topcu, Ezgi, Kiransan, Kader Dagci

Özet

Here, a three-dimensional (3D) flexible material was prepared based on FeNiP decorated graphene sponge (GrS) by a two-step method. Free-standing 3D GrS was fabricated through a simple foaming-drying method, then FeNiP was electrodeposited onto flexible GrS material to achieve a flexible FeNiP/GrS sponge electrode for highperformance electrochemical supercapacitors. This composite material exhibited a high specific capacitance of 2292 F/g and 90% of the specific capacitance was retained after 10,000 charge/discharge cycles at a current density of 1 A/g. An asymmetric supercapacitor (FeNiP/GrS//GrS) was fabricated and this flexible circuit delivered a maximum power density of 6545 W/kg and a high energy density of 330 Wh/kg. This outstanding electrochemical performance could be attributed to the high charge conductivity of FeNiP and porous graphene sponge which provides good structure stability, large reaction surface area, and high electron transfer.

Anahtar Kelimeler

Graphene sponge material Nickel phosphite Iron phosphite Asymmetric supercapacitors ENERGY-STORAGE HYDROTHERMAL SYNTHESIS COBALT PHOSPHIDE CARBON NANOTUBES HYBRID FIBERS NICKEL FOAM OXIDE BINDER NANOCOMPOSITE NANOWIRES

WoS Kategorileri

Materials Science, Multidisciplinary

Künye

Dergi: MATERIALS RESEARCH BULLETIN
Yıl: 2023
Cilt: 165
ISSN: 0025-5408
eISSN: 1873-4227
DOI: 10.1016/j.materresbull.2023.112333
WoS UID: WOS:001008400400001

Yayını aç (DOI)