A Fe/Fe₃O₄/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries

Abstract

2015). A Fe/Fe3O4/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries. Dalton Transactions: an international journal of inorganic chemistry, 44 (10), 4594-4600. A Fe/Fe3O4/N-carbon composite with hierarchical porous structure and in situ formed N-doped graphene-like layers for high-performance lithium ion batteries AbstractFe/Fe3O4/N-carbon composite consisting of a porous carbon matrix containing a highly conductive Ndoped graphene-like network and Fe/Fe3O4 nanoparticles was prepared. The porous carbon has a hierarchical structure which is inherited from rice husk and the N-doped graphene-like network formed in situ. When used as an anode material for lithium batteries, the composite delivered a reversible capacity of approximately 610 mA h g(-1) at a current density of 200 mA g(-1) even after 100 cycles, due to the synergism between the unique hierarchical porous structures, highly electrically conductive N-doped graphene-like networks and nanosized particles of Fe/Fe3O4. This work provides a simple approach to prepare N-doped porous carbon activated nanoparticle composites which could be used to improve the electrochemical performance of lithium ion batteries. hierarchical structure which is inherited from rice husk and the N-doped graphene-like network formed in situ. When used as an anode material for lithium batteries, the composite delivered a reversible capacity of approximately 610 mA h g −1 at a current density of 200 mA g −1 even after 100 cycles, due to the synergism between the unique hierarchical porous structures, highly electrically conductive N-doped graphene-like networks and nanosized particles of Fe/Fe 3 O 4 . This work provides a simple approach to prepare N-doped porous carbon activated nanoparticle composites which could be used to improve the electrochemical performance of lithium ion batteries.

Facile one-pot synthesis of magnetic nitrogen-doped porous carbon for high-performance bilirubin removal from BSA-rich solution

“…Besides, all the other peaks can be readily indexed to two phases of Fe and Fe 3 O 4 , which is in agreement with the reported values in the literature. 32 The formation of Fe and Fe 3 O 4 might be explained by the "decomposition-reduction-oxidation" processes occurred in our synthesis. 31 Specically, in the rst stage (750 C; N 2 protection), the metal precursor (Fe(NO 3 ) 3 $9H 2 O) would be decomposed to iron oxide, and the carbon species from chitosan could reduce the iron oxide to Fe nanoparticle.…”

Liquid Phase Plasma Synthesis of Iron Oxide Nanoparticles on Nitrogen-Doped Activated Carbon Resulting in Nanocomposite for Supercapacitor Applications

“…%, which was difficult to observe by XRD. On the other hand, in the IONCC-10 samples, the peaks for the 311 and 440 planes Fe 3 O 4 were observed at 35.4 and 62.5° 2θ, respectively [ 52 , 53 ]. Therefore, the iron impregnated on the NC surface by the LPP reaction is iron oxide, which agrees with the EDS and XPS results.…”

Versatile Nanostructures from Rice Husk Biomass for Energy Applications

“…On the basis of the LIB performance of RH‐silicon and RH‐PC NSs, more RH‐NS‐based composites (e.g., silicon NS–graphene composites, Fe/F 3 O 4 /N–carbon composites, carbon–silica composites, C–SiO x composites, and P‐doped porous carbon) were developed with high capacity and good cycling stability, showing promising applicability in LIBs.…”