Article (Scientific journals)
Improving the electrochemical performances of organo-palladium (II) complex as promising anode material for Li-ion batteries: Effect of double emulsion preparation
Roex, Edith; Etse, Koffi Senam; Cloots, Rudi et al.
2021In Journal of Power Sources, 496, p. 229827
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Keywords :
Organo-palladium complex; Lithium-ion batteries; Anode; Double emulsion-evaporation; Electrode homogenization
Abstract :
[en] The influence of the particle morphology on electrochemical performance of organo-palladium (II) complex as anode material for Li-ion batteries is studied in this work. The double emulsion-evaporation technique was used to control the particle morphology of the [IPd(4-AcOC6H4)(PPh3)2] complex obtained after synthesis. SEM and TEM images of the particles obtained after double emulsion show spherical hollow and solid microparticles with a particle size lower than 15 μm, composed of an aggregation of nanoparticles with a particle size lower than 15 nm. The NMR analysis confirms that the molecular structure of the iodine complex is preserved after double emulsion. The effect of electrode slurry homogenization duration was explored and investigated. The comparison of the CV curves and the cycling performance demonstrates that the material prepared by double emulsion and with one week of slurry homogenization presents the best electrochemical performance. This shaped electrode exhibits the highest specific discharge capacity of 740 mAh g−1 at 50 mA g−1 compared to 170 mAh g−1 for the complex initially synthesized. These results indicate that the particle morphology and duration of slurry homogenization have a great influence on the improvement of specific capacity, cyclability, and rate capability of [IPd(4-AcOC6H4)(PPh3)2] as anode material for Li-ion batteries.
Disciplines :
Chemistry
Author, co-author :
Roex, Edith  ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Etse, Koffi Senam ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > Vice-Recteur à la vie étud. et aux infrastr. immobilières
Boschini, Frédéric ;  Université de Liège - ULiège > Plateforme APTIS
Mahmoud, Abdelfattah  ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Language :
English
Title :
Improving the electrochemical performances of organo-palladium (II) complex as promising anode material for Li-ion batteries: Effect of double emulsion preparation
Publication date :
01 June 2021
Journal title :
Journal of Power Sources
ISSN :
0378-7753
Publisher :
Elsevier, Netherlands
Volume :
496
Pages :
229827
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 April 2021

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