In situ transformation boosts the pseudocapacitance of CuNi-MOF via cooperative orientational and electronic governing

Autor:	Xianyu Chu, Fanling Meng, Wei Zhang, Lihua Zhang, Sebastian Molin, Piotr Jasinski, Weitao Zheng
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Metal-organic frameworks transformation vertically oriented electronic configuration modification supercapacitors Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 11, Iss 6, Pp 446-453 (2023)
Druh dokumentu:	article
ISSN:	21663831 2166-3831
DOI:	10.1080/21663831.2023.2181111
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d1d82bd79ab74d268d221eb0eadfb0cd Zobrazit plný text záznamu View record in DOAJ