TY - JOUR
T1 - K-ion and Na-ion storage performances of Co3O4-Fe2O3 nanoparticle-decorated super P carbon black prepared by a ball milling process
AU - Sultana, Irin
AU - Rahman, Md Mokhlesur
AU - Mateti, Srikanth
AU - Ahmadabadi, Vahide Ghanooni
AU - Glushenkov, Alexey M.
AU - Chen, Ying
N1 - Publisher Copyright:
© 2017 The Royal Society of Chemistry.
PY - 2017/3/14
Y1 - 2017/3/14
N2 - The hybridisation of Co3O4 and Fe2O3 nanoparticles dispersed in a super P carbon matrix is proposed as a favourable approach to improve the electrochemical performance (reversible capacity, cycling stability and rate capability) of the metal oxide electrodes in metal-ion batteries. Hybrid Co3O4-Fe2O3/C is prepared by a simple, cheap and easily scalable molten salt method combined with ball-milling and used in sodium-ion and potassium-ion batteries for the first time. The electrode exhibits excellent cycling stability and superior rate capability in sodium-ion cells with a capacity recovery of 440 mA h g-1 (93% retention) after 180 long-term cycles at 50-1000 mA g-1 and back to 50 mA g-1. In contrast, Co3O4-Fe2O3, Co3O4 and Fe2O3 electrodes display unsatisfactory electrochemical performance. The hybrid Co3O4-Fe2O3/C is also reactive with potassium and capable of delivering a reversible capacity of 220 mA h g-1 at 50 mA g-1 which is comparable with the most reported anode materials for potassium-ion batteries. The obtained results broaden the range of transition metal oxide-based hybrids as potential anodes for K-ion and Na-ion batteries, and suggest that further studies of these materials with potassium and sodium are worthwhile.
AB - The hybridisation of Co3O4 and Fe2O3 nanoparticles dispersed in a super P carbon matrix is proposed as a favourable approach to improve the electrochemical performance (reversible capacity, cycling stability and rate capability) of the metal oxide electrodes in metal-ion batteries. Hybrid Co3O4-Fe2O3/C is prepared by a simple, cheap and easily scalable molten salt method combined with ball-milling and used in sodium-ion and potassium-ion batteries for the first time. The electrode exhibits excellent cycling stability and superior rate capability in sodium-ion cells with a capacity recovery of 440 mA h g-1 (93% retention) after 180 long-term cycles at 50-1000 mA g-1 and back to 50 mA g-1. In contrast, Co3O4-Fe2O3, Co3O4 and Fe2O3 electrodes display unsatisfactory electrochemical performance. The hybrid Co3O4-Fe2O3/C is also reactive with potassium and capable of delivering a reversible capacity of 220 mA h g-1 at 50 mA g-1 which is comparable with the most reported anode materials for potassium-ion batteries. The obtained results broaden the range of transition metal oxide-based hybrids as potential anodes for K-ion and Na-ion batteries, and suggest that further studies of these materials with potassium and sodium are worthwhile.
UR - http://www.scopus.com/inward/record.url?scp=85014886113&partnerID=8YFLogxK
U2 - 10.1039/c6nr09613a
DO - 10.1039/c6nr09613a
M3 - Article
SN - 2040-3364
VL - 9
SP - 3646
EP - 3654
JO - Nanoscale
JF - Nanoscale
IS - 10
ER -