Axial compressive α-Fe2O3 microdisks prepared from CSS template for potential anode materials of lithium ion batteries

Gao, Guo; Zhang, Qiang; Wang, Kan; Shi, Hua; Qiu, Peiyu; Cui, Daxiang

doi:10.1016/j.nanoen.2013.03.023

Cited by 39 publications

(23 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inset in Fig. Increase in capacity after some initial cycles upon cycling is also reported in many other iron oxide systems 18 43 Voltage profiles of the porous 2D-FC for selected cycles are shown in Fig. From an overall SEM observation, it is found that the area with small-sized flakes exists commonly with the appearance of residual incompletely disassembled bulks, and the area with large 2D flakes shows mostly flakes only.…”

Section: Resultssupporting

confidence: 57%

“…However, nanoparticles are often coupled with large irreversible capacity loss associated with electrolyte degradation and suffer from severe agglomeration during cycling, thus damage their electrochemical property. 18 The introduced carbonaceous materials can also buffer partially the volume changes of the iron oxide during cycling due to their flexible nature. 2D structured electrode materials (nanosheets) possess large exposed surfaces and short lithium diffusion path.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

et al. 2015

View full text Add to dashboard Cite

Reticulated mesoporous Fe2O3@C flakes, consisting of nanocrystalline α-Fe2O3 encased within a thin carbon skeleton, were synthesized using ferrocene as iron and carbon sources and a novel reaction agent of ammonium sulphate via a facile two-step heating route. Those flakes, which were several nanometers thick and 1–2 μm in diameter, showed high capacity, excellent cyclic stability and rate capability as an anode material for lithium-ion batteries (LIBs). An initial reversible capacity of 910 mA h g−1 at a discharge/charge current of 0.1 A g−1 was obtained, and the capacity showed a gradual increase during cycling, reaching a high capacity of 1080 mA h g−1 after 120 cycles. An in situ lithiation study by transmission electron microscopy showed that the reticulated mesopores and the ultrathin feature of the Fe2O3@C flakes can largely accommodate the mechanical stresses and volume expansion of Fe2O3 during lithiation and hence maintain their integrity and provide excellent properties. The thin carbon skeleton not only facilitates the electronic conduction, but also inhibits the aggregation of nanocrystalline Fe2O3 flakes. The facile fabrication method and the unique structure of the mesoporous Fe2O3@C flakes offer high performance for LIB anodes and great potential for other applications of Fe2O3

show abstract

Section: Resultssupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

et al. 2015

View full text Add to dashboard Cite

show abstract

“…On the other 25 hand, the upconversion luminescence (UCL) imaging has high resolution and sensitivity but it only has the low penetration depth of the excitation and emission light, so it cannot provide spatial resolution and 3D tissue details [69] . To combine the presence of efficient optical and MR imaging probes, there are two ways to integrate these two modes to make up the shortages of each other [70][71][72] . Either paramagnetic Gd 3+ ions are used in host 5 matrix or integrating Fe 3 O 4 and UCNPs to compose core-shell structures.…”

Section: Nanocomposites For Multimodal Imagingmentioning

confidence: 99%

Recent advances in lanthanide-doped upconversion nanomaterials: synthesis, nanostructures and surface modification

et al. 2013

Self Cite

View full text Add to dashboard Cite

Owing to their unique photo-physical properties, rare-earth ions-doped upconversion nanoparticles (UCNPs) have attracted extensive attention in recent years. UCNPs have many special merits, such as a long luminescence lifetime, narrow emission band widths, high quantum yields and low toxicity, which allows their potential applications in bio-medical field, biological luminescent labels and drug delivery carriers. Compared with traditional fluorescence labels exited by UV (ultraviolet), such as organic dyes and quantum dots, UCNPs can transfer near-infrared (NIR) light into visible light, which is commonly called upconversion luminescence (UCL). This paper reviews the recent advances of several typical synthesis methods of UCNPs in detail as well as the fabrication and optimization of the particle morphology, and the latest advances of UCNPs for multimode imaging, surface passivation and functionalization are also described.

show abstract

“…In order to meet the gradually increasing need for LIBs with higher energy density and longer cycle lifetime, scientists have devoted a series of efforts in developing new electrode materials. Transition metal oxides as anode materials in LIBs can deliver reversible lithium storage capacity of 2~3 times higher than that of commercial graphite [8][9][10] . As we know, (i) although its theory capacity is only 336 mAh g -1 , TiO 2 electrodes are based on embedded-emergence reaction in the charge-discharge cycles, resulting in little volume expansion [11][12][13] ; (ii) the other transition metal oxide (e.g.…”

Section: Introductionmentioning

confidence: 99%

Ternary perovskite nickel titanate/reduced graphene oxide nano-composite with improved lithium storage properties

Fan

Xiao

et al. 2016

RSC Adv.

View full text Add to dashboard Cite

As anode materials, TiO2 exhibits a suitable potential, fast kinetics and excellent cycling performance, while other transition metal oxides (such as NiO) deliver a much higher theoretical capacity with a moderate kinetics and limited cycling performance. Herein, a novel perovskite NiTiO3/reduced graphene oxide (RGO) composite with a particle size of 40-50 nm was first synthesized by solvothermal method and introduced as anode materials for lithium-ion batteries. The structure morphology and electrochemical performance of NiTiO3/RGO nanocomposite were investigated by X-ray diffraction (XRD), Raman spectroscopy measurements, scanning electron microscopy (SEM), transmission electron microscopy (TEM), galvanostatic charge-discharge tests, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. The NiTiO3/RGO nanocomposite delivers a higher discharge capacity (1110.7 mAh g -1 ) and better cycling stability (65.3 %), as well as improved rate capability over 50 cycles, compared with those of bare NiTiO3. The improved electrochemical properties of NiTiO3/RGO can be attributed to the good conductivity and large surface of RGO and the combination nanostructure of NiTiO3 and RGO.

show abstract

Axial compressive α-Fe2O3 microdisks prepared from CSS template for potential anode materials of lithium ion batteries

Cited by 39 publications

References 35 publications

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

Recent advances in lanthanide-doped upconversion nanomaterials: synthesis, nanostructures and surface modification

Ternary perovskite nickel titanate/reduced graphene oxide nano-composite with improved lithium storage properties

Contact Info

Product

Resources

About

Axial compressive α-Fe2O3 microdisks prepared from CSS template for potential anode materials of lithium ion batteries

Cited by 39 publications

References 35 publications

Mesoporous Fe2O3 flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

Mesoporous Fe2O3 flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

Recent advances in lanthanide-doped upconversion nanomaterials: synthesis, nanostructures and surface modification

Ternary perovskite nickel titanate/reduced graphene oxide nano-composite with improved lithium storage properties

Contact Info

Product

Resources

About

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

Mesoporous Fe₂O₃ flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes