In situ transformation boosts the pseudocapacitance of CuNi-MOF via cooperative orientational and electronic governing
- Resource Type
- article
- Authors
- Xianyu Chu; Fanling Meng; Wei Zhang; Lihua Zhang; Sebastian Molin; Piotr Jasinski; Weitao Zheng
- Source
- Materials Research Letters, Vol 11, Iss 6, Pp 446-453 (2023)
- Subject
- Metal-organic frameworks
transformation
vertically oriented
electronic configuration modification
supercapacitors
Materials of engineering and construction. Mechanics of materials
TA401-492
- Language
- English
- ISSN
- 21663831
2166-3831
The disordered arrangement and thereof inferior conductivity of 2D MOF sheets seriously hinder their practical application. Herein, we propose in situ transformation strategy to architect vertically oriented bimetallic CuNi-MOF as a self-supporting electrode, leading to a decuple high specific capacitance of 1262 C g-1 in comparison with the pristine Ni-MOF powder of 114 C g-1 at 2 A g-1. DFT calculations reveal that introduction of Cu can modulate the electronic structure of metal centers in the Ni-MOF sheets and optimize electrical conductivity. Our strategy is promising to maximize the utilization of MOF superiorities for optimizing their electrochemical performance.