Please use this identifier to cite or link to this item:
https://doi.org/10.1039/c2ra21136j
Title: | Synthesis and Li-storage behavior of CrN nanoparticles | Authors: | Das, B. Reddy, M.V. Subba Rao, G.V. Chowdari, B.V.R. |
Issue Date: | 2012 | Citation: | Das, B., Reddy, M.V., Subba Rao, G.V., Chowdari, B.V.R. (2012). Synthesis and Li-storage behavior of CrN nanoparticles. RSC Advances 2 (24) : 9022-9028. ScholarBank@NUS Repository. https://doi.org/10.1039/c2ra21136j | Abstract: | Bulk CrN nanoparticles are prepared by the thermal decomposition of a Cr-urea complex in a flowing NH3 + N2 atmosphere and characterized by X-ray diffraction (XRD) and high resolution-transmission electron microscopy (HR-TEM) along with selective area electron diffraction (SAED) techniques. The Li-cycling performance of bulk CrN is evaluated by galvanostatic cycling and cyclic voltammetry on the cells with Li metal as counter electrode in the voltage range of 0.005-3.0 (3.5) V at ambient temperature. When cycled at 60 mA g-1 (0.1 C) up to 3.0 V, the composition 55:30:15 (active material:carbon:binder) showed a first-cycle reversible capacity of 635 (±10) mA h g-1 (1.6 moles of Li). The reversible capacity of 500 (±10) mA h g-1 (1.23 moles of Li) is stable between 10 and 80 cycles. At 0.5 C, it showed a stable capacity of 350 (±10) mA h g-1 for 40 cycles and the original capacity is regained when cycled at 0.1 C rate after 160 cycles. The coulombic efficiency is found to be >96% in the range of 20-80 cycles. The low impedance at the discharge potential | Source Title: | RSC Advances | URI: | http://scholarbank.nus.edu.sg/handle/10635/98179 | ISSN: | 20462069 | DOI: | 10.1039/c2ra21136j |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
24
checked on Jan 26, 2021
WEB OF SCIENCETM
Citations
24
checked on Jan 26, 2021
Page view(s)
64
checked on Jan 17, 2021
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.