TY - JOUR
T1 - Iron nanoparticle templates for constructing 3D graphene framework with enhanced performance in sodium-ion batteries
AU - Campéon, Benoît D.L.
AU - Wang, Chen
AU - Nishina, Yuta
N1 - Funding Information:
This research was supported by JST CREST (JPMJCR18R3).
Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2020/11/14
Y1 - 2020/11/14
N2 - This study examines the synthesis and electrochemical performance of three-dimensional graphene for Li-ion batteries and Na-ion batteries. The in situ formation of iron hydroxide nanoparticles (Fe(OH)x NPs) of various weights on the surface of graphene oxide, followed by thermal treatment at elevated temperature and washing using hydrochloric acid, furnished 3D graphene. The characterization studies confirmed the prevention of graphene layer stacking by over 90% compared with thermal treatment without Fe(OH)x. The electrochemical performance of the 3D graphene was evaluated as a counter electrode for lithium metal and sodium metal in a half-cell configuration. This material showed good performances with a charging capacity of 507 mA h g-1 at 372 mA g-1 in Li-ion batteries and 252 mA h g-1 at 100 mA g-1 in Na-ion batteries, which is 1.4 and 1.9 times higher, respectively, than the graphene prepared without Fe(OH)x templates.
AB - This study examines the synthesis and electrochemical performance of three-dimensional graphene for Li-ion batteries and Na-ion batteries. The in situ formation of iron hydroxide nanoparticles (Fe(OH)x NPs) of various weights on the surface of graphene oxide, followed by thermal treatment at elevated temperature and washing using hydrochloric acid, furnished 3D graphene. The characterization studies confirmed the prevention of graphene layer stacking by over 90% compared with thermal treatment without Fe(OH)x. The electrochemical performance of the 3D graphene was evaluated as a counter electrode for lithium metal and sodium metal in a half-cell configuration. This material showed good performances with a charging capacity of 507 mA h g-1 at 372 mA g-1 in Li-ion batteries and 252 mA h g-1 at 100 mA g-1 in Na-ion batteries, which is 1.4 and 1.9 times higher, respectively, than the graphene prepared without Fe(OH)x templates.
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U2 - 10.1039/d0nr05682k
DO - 10.1039/d0nr05682k
M3 - Article
C2 - 33103179
AN - SCOPUS:85095799410
SN - 2040-3364
VL - 12
SP - 21780
EP - 21787
JO - Nanoscale
JF - Nanoscale
IS - 42
ER -