Details

Autor(en) / Beteiligte

• Catarineu, Noelle R.
• Lin, Dun
• Zhu, Cheng
• Oyarzun, Diego I.
• Li, Yat

Titel

High-performance aqueous zinc-ion hybrid capacitors based on 3D printed metal-organic framework cathodes

Ist Teil von

• Chemical engineering journal (Lausanne, Switzerland : 1996), 2023-06, Vol.465 (na), p.142544, Article 142544

Ort / Verlag

United States: Elsevier B.V

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •3D printable ink was developed containing up to 77 wt% metal–organic framework ZIF-8.•Hierarchically porous woodpile lattices of ZIF-8 were printed by direct ink writing.•ZIF-8 templated the formation of a porous cathode material with high ion affinity.•Zinc-ion hybrid capacitors with exceptional areal capacitance and energy density were produced. The zinc-ion hybrid capacitor is a promising energy storage device, but current overall capacity is limited by the capacitance of the carbon cathode. We produced a hierarchically porous, nitrogen-doped carbon cathode with good cycling and mechanical stability by 3D printing and pyrolysis of the zinc-based metal–organic framework ZIF-8. When incorporated into a zinc-ion hybrid capacitor, we achieved an areal capacitance of 16.9 F cm−2 and energy density of 7.23 mW h cm−2, outperforming zinc-ion hybrid capacitors based on conventional cathodes.