Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 8, 2019
Previous Article Next Article

Alkali-induced 3D crinkled porous Ti3C2 MXene architectures coupled with NiCoP bimetallic phosphide nanoparticles as anodes for high-performance sodium-ion batteries

Author affiliations

Abstract

To enhance the structural stability and improve the poor electrochemical reaction kinetics of anodes for sodium ion batteries (SIBs), we develop a novel strategy to couple NiCoP bimetallic phosphide nanoparticles with alkali-induced 3D interconnected crinkled porous Ti3C2 MXenes as anodes for high-performance SIBs. The interconnected 3D Ti3C2 crinkled architectures can establish a 3D conductive network, abundant open pores and large surface area, which provides a 3D conductive highway and unblocked channels for a rapid charge transfer process and for electrolyte storage, and makes fully close contact between the electrode and electrolyte. The unique MXene structure can effectively tolerate volume expansion and prevent aggregation and pulverization of NiCoP nanoparticles during Na+ insertion/extraction processes. The NiCoP bimetallic phosphide possesses richer redox reaction sites, higher electrical conductivity and low charge transfer impedance. The synergistic effect between the components of NiCoP and MXene Ti3C2 with high structural stability and electrochemical activity leads to excellent electrochemical performance, retaining a specific capacity of 261.7 mA h g−1 at a current density of 1 A g−1 for 2000 cycles. The present strategy of an in situ phosphization route and coupling phosphides with crinkled 3D Ti3C2 can be extended to other novel electrodes for high-performance energy storage devices.

Graphical abstract: Alkali-induced 3D crinkled porous Ti3C2 MXene architectures coupled with NiCoP bimetallic phosphide nanoparticles as anodes for high-performance sodium-ion batteries

Back to tab navigation

Supplementary files

Article information


Submitted
26 Jan 2019
Accepted
30 Apr 2019
First published
30 Apr 2019

Energy Environ. Sci., 2019,12, 2422-2432
Article type
Paper

Alkali-induced 3D crinkled porous Ti3C2 MXene architectures coupled with NiCoP bimetallic phosphide nanoparticles as anodes for high-performance sodium-ion batteries

D. Zhao, R. Zhao, S. Dong, X. Miao, Z. Zhang, C. Wang and L. Yin, Energy Environ. Sci., 2019, 12, 2422
DOI: 10.1039/C9EE00308H

Social activity

Search articles by author

Spotlight

Advertisements