Issue 45, 2017

Water-enabled crystallization of mesoporous SnO2 as a binder-free electrode for enhanced sodium storage

Abstract

Water-enabled crystallization of amorphous anodic SnO2 is reported. After low-temperature water soaking for a short period of time (e.g., 60 °C for 2 h), mesoporous rutile SnO2 with a remarkably increased surface area is achieved (nearly 2-fold that of the as-anodized SnO2 and 3.3 times that of SnO2 annealed at high temperature). Closer examination reveals that the water-crystallized SnO2 possesses a hierarchical nanostructure that features 1D nanochannels (e.g., ∼30 nm in diameter) and thin channel walls (e.g., 20 nm thick) that are comprised of tiny nanoparticles (e.g., ∼4 nm big). The water-crystallized SnO2 directly grown on the copper foil can be directly applied as a novel type of binder-free electrode for sodium-ion storage, delivering a high reversible capacity of 514 mA h g−1 after 100 cycles at a current rate of 0.1C.

Graphical abstract: Water-enabled crystallization of mesoporous SnO2 as a binder-free electrode for enhanced sodium storage

Supplementary files

Article information

Article type
Paper
Submitted
18 Sep 2017
Accepted
23 Oct 2017
First published
23 Oct 2017

J. Mater. Chem. A, 2017,5, 23967-23975

Water-enabled crystallization of mesoporous SnO2 as a binder-free electrode for enhanced sodium storage

H. Bian, R. Dong, Q. Shao, S. Wang, M. Yuen, Z. Zhang, D. Y. W. Yu, W. Zhang, J. Lu and Y. Y. Li, J. Mater. Chem. A, 2017, 5, 23967 DOI: 10.1039/C7TA08228B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements