Issue 14, 2020

Highly pseudocapacitive metal–organic framework derived carbon skeleton supported Fe–Ti–O nanotablets as an anode material for efficient lithium storage

Abstract

A facile and effective method to fabricate highly pseudocapacitive electrodes of Fe–Ti–O@C has been proposed here. In this strategy, FeOOH crystals were firstly grown uniformly on the surface of Ti-based MOF (MIL-125) tablet substrates through a solution immersion method, and then converted to uniform carbon supported Fe–Ti–O composites by calcination under argon. The obtained Fe–Ti–O@C composites were first utilized as an efficient anode for lithium ion batteries with a high reversible capacity of 988 mA h g−1 after 160 cycles at 200 mA g−1. Such a superior lithium storage performance may be due to the synergistic effect of the Fe3O4 nanoparticles with a high capacity, FeTiO3 nanocomposites with a nearly stable structure during the Li+ insertion/removal process, and the conductive carbon skeleton with a large surface area and porous structure. This work represents an important step forward in the fabrication of MOF-derived hybrids and enables transition metal oxides (TMOs) to have potential applications in energy storage systems.

Graphical abstract: Highly pseudocapacitive metal–organic framework derived carbon skeleton supported Fe–Ti–O nanotablets as an anode material for efficient lithium storage

Supplementary files

Article information

Article type
Paper
Submitted
12 Dec 2019
Accepted
03 Mar 2020
First published
30 Mar 2020

Nanoscale, 2020,12, 7849-7856

Highly pseudocapacitive metal–organic framework derived carbon skeleton supported Fe–Ti–O nanotablets as an anode material for efficient lithium storage

Y. Guo and L. Zhang, Nanoscale, 2020, 12, 7849 DOI: 10.1039/C9NR10536K

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