Format

Send to

Choose Destination
ACS Appl Mater Interfaces. 2016 Feb 17;8(6):3992-9. doi: 10.1021/acsami.5b11287. Epub 2016 Feb 3.

ZIF-8 Cooperating in TiN/Ti/Si Nanorods as Efficient Anodes in Micro-Lithium-Ion-Batteries.

Author information

1
Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics/Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University , Xiamen, Fujian 361005, China.
2
State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University , Xi'an, Shanxi 710049, China.
3
State Key Lab of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, Fujian 361005, China.
4
High-field NMR Research Center, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005, China.
5
Department of Mechanical Engineering, University of California , Berkeley, California 94720, United States.

Abstract

Zeolite imidazolate framework-8 (ZIF-8) nanoparticles embedded in TiN/Ti/Si nanorod (NR) arrays without pyrolysis have shown increased energy storage capacity as anodes for lithium ion batteries (LIBs). A high capacity of 1650 μAh cm(-2) has been achieved in this ZIF-8 composited multilayered electrode, which is ∼100 times higher than the plain electrodes made of only silicon NR. According to the electrochemical impedance spectroscopy (EIS) and (1)H nuclear magnetic resonance (NMR) characterizations, the improved diffusion of lithium ions in ZIF-8 and boosted electron/Li(+) transfer by the ZIF-8/TiN/Ti multilayer coating are proposed to be responsible for the enhanced energy storage ability. The first-principles calculations further indicate the favorable accessibility of lithium with appropriate size to diffuse in the open pores of ZIF-8. This work broadens the application of ZIF-8 to silicon-based LIBs electrodes without the pyrolysis and provides design guidelines for other metal-organic frameworks/Si composite electrodes.

KEYWORDS:

TiN/Ti layer; ZIF-8; lithium-ion battery; metal−organic frameworks; silicon nanorod arrays

PMID:
26807654
DOI:
10.1021/acsami.5b11287

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center