Synthesis of pyrite/carbon shells on cobalt nanowires forming core/branch arrays as high-performance cathode for lithium ion batteries

Cao, Feng; Pan, Guoxiang; Chen, J.; Zhang, Yujian; Xia, Xinhui

doi:10.1016/j.jpowsour.2015.10.096

Cited by 19 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… Photovoltaics: mesoporous silica (MS)@CuO@FeS 2 , P3HT:PCBM:FeS 2 , FeS 2 /graphene, FeS 2 nanotube arrays on ZnO nanotube arrays Optoelectronics : FeS 2 NCs/graphene Magnetoelectronics: CoS 2 /FeS 2 , FeS 2 /FeSe x Hydrogen production: FeS 2 /anatase TiO 2 & Hydrogen storage: MgH 2 –FeS 2 Lithium ion batteries (LIBs): FeS 2 /CNT, FeS 2 @Carbon fibre, FeS 2 /RGO, FeS 2 /N−G composite, FeS 2 /carbon shells on cobalt nanowires, pitaya‐structured FeS 2 @C Sodium ion batteries (SIBs): FeS 2 nanosheet@Fe 2 O 3, Na/FeS 2 , FeS 2 /rGO−A (reduced graphene oxide aerogel), lychee‐like FeS 2 @FeSe 2 core‐shell microspheres, FeS 2 @C yolk–shell nanoboxes, FeS 2 /CNT Supercapacitors: FeS 2 /graphene, FeS 2 /C Environmental remediation: Au@FeS 2 , FeS 2 QDs/SiO 2 ‐chitosan or polypyrrole Hydrogenation: TiO 2 /FeS 2 , FeS 2 /CNT …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

View full text Add to dashboard Cite

Transition metal sulfides (TMSs) are of special interest in energy conversion and storage devices. Amongst all sulfides, fool's gold or iron pyrite (FeS 2 ) is potentially an attractive candidate for photovoltaic applications. Iron pyrite has risen to prominence due to its distinct properties and abundance in nature to meet the large scale needs. It is considered as environmentally benign solar absorber material with high absorption coefficient, α > 6 x10 5 cm À 1 for λ � 700 nm and suitable energy bandgap (E g = 0.95 eV). Numerous physical and chemical methods have been employed to deposit nanocrystalline pyrite thin films directly from source materials or indirectly by sulfuration. This review gives an overview of pyrite as a low cost photovoltaic absorber material for contemporary solar cell structures. In addition, practical approaches like the rational design of nanocomposites, band gap engineering and nanostructure synthesis of pyrite for improving its properties particularly photovoltaic properties are also deliberated. Moreover, limitations, challenges, remedies and prospects of pyrite as potential photovoltaic material are also reviewed to further advance the development of pyrite-based solar cell configurations.[a] Dr.at a low precursor concentration, pyrite nanocubes (125-250 nm in 20-180 min) were obtained due to low nuclei concentration and slow growth (diffusion limited) in quasiequilibrium. The anisotropic structures nanodendrites were 2 3 4 5 6 7 8

show abstract

Section: Introductionmentioning

confidence: 99%

“…Lithium ion batteries (LIBs): FeS 2 /CNT, FeS 2 @Carbon fibre, FeS 2 /RGO, FeS 2 /N−G composite, FeS 2 /carbon shells on cobalt nanowires, pitaya‐structured FeS 2 @C…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Nowadays, the branched nanostructures attract tremendous interests in LIBs. [ 11,12 ] Both the packing density and the specific surface area of active material can be increased by the secondary dendrites as well as by maintaining the advantages of 1D nanostructures. The branched TiO 2 , SnO 2 etc.…”

Section: Introductionmentioning

confidence: 99%

Facile and Efficient Fabrication of Branched Si@C Anode with Superior Electrochemical Performance in LIBs

Cao

Huang

Cui

et al. 2021

Small

View full text Add to dashboard Cite

One‐dimensional Si nanostructures with carbon coating (1D Si@C) show great potential in lithium ion batteries (LIBs) due to small volume expansion and efficient electron transport. However, 1D Si@C anode with large area capacity still suffers from limited cycling stability. Herein, a novel branched Si architecture is fabricated through laser processing and dealloying. The branched Si, composed of both primary and interspaced secondary dendrites with diameters under 100 nm, leads to improved area capacity and cycling stability. By coating a carbon layer, the branched Si@C anode shows gravimetric capacity of 3059 mAh g−1 (1.14 mAh cm−2). At a higher rate of 3 C, the capacity is 813 mAh g−1, which retained 759 mAh g−1 after 1000 cycles at 1 C. The area capacity is further improved to 1.93 mAh cm−2 and remained over 92% after 100 cycles with a mass loading of 0.78 mg cm−2. Furthermore, the full‐cell configuration exhibits energy density of 405 Wh kg−1 and capacity retention of 91% after 200 cycles. The present study demonstrates that laser‐produced dendritic microstructure plays a critical role in the fabrication of the branched Si and the proposed method provides new insights into the fabrication of Si nanostructures with facility and efficiency.

show abstract

“…[5,12] Another commonly used strategy is to execute microstructure modifications towards FeS 2 for enlarging the contact interfaces between FeS 2 and the electrolyte and accordingly shortening the Li + transport pathways. [13][14][15][16][17] Despite the clear effects in alleviating volumec hanges and improvingt he sluggish reaction kinetics by this strategy,t he Fe coarsening has not been effectively inhibitedy et. Evidently,i ti sd ifficult to obtain ideal electrochemical performances in terms of the reversible capacity, rate capability,a nd cycling life only by tailoring the physicochemical or electrochemical behavior of FeS 2 itself.…”

Section: Introductionmentioning

confidence: 99%

“…Then, the precursor was converted into the target FeS 2 /MoS 2 hybrid by as imple solidphase sulfurization in N 2 atmosphere.T he XRD pattern of FeS 2 / MoS 2 ( Figure 1a)d isplays pronounced diffraction peaks at 2q = 28.58,3 3.08,3 7.18,4 0.78,4 7.48,a nd 56.28,c orresponding to the (111), (2 00), (2 10), (2 11), (2 20), and (3 11)p laneso ft he pyrite FeS 2 phase (JCPDS card No. 42-1340), [16,17] and ab road peak at 14.48,w hich can be indexed to the (0 02)p lane of the MoS 2 phase (JCPDS card No. 75-1539).…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Beneficial Microstructure Evolution in Pyrite for Boosted Lithium Storage Performance

Wang

Qin

Jiang

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

Pyrite FeS2 as a high‐capacity electrode material for lithium‐ion batteries (LIBs) is hindered by its unstable cycling performance owing to the large volume change and irreversible phase segregation from coarsening of Fe. Here, the beneficial microstructure evolution in MoS2‐modified FeS2 is unraveled during the cycling process; the microstructure evolution is responsible for its significantly boosted lithium storage performance, making it suitable for use as an anode for LIBs. Specifically, the FeS2/MoS2 displays a long cycle life with a capacity retention of 116 % after 600 cycles at 0.5 A g−1, which is the best among the reported FeS2‐based materials so far. A series of electrochemical tests and structural characterizations substantially revealed that the introduced MoS2 in FeS2 experiences an irreversible electrochemical reaction and thus the in situ formed metallic Mo could act as the conductive buffer layer to accelerate the dynamics of Li+ diffusion and electron transport. More importantly, it can guarantee the highly reversible conversion in lithiated FeS2 by preventing Fe coarsening. This work provides a fundamental understanding and an effective strategy towards the microstructure evolution for boosting lithium storage performances for other metal sulfide‐based materials.

show abstract

Synthesis of pyrite/carbon shells on cobalt nanowires forming core/branch arrays as high-performance cathode for lithium ion batteries

Cited by 19 publications

References 34 publications

Nanocrystalline Pyrite for Photovoltaic Applications

Nanocrystalline Pyrite for Photovoltaic Applications

Facile and Efficient Fabrication of Branched Si@C Anode with Superior Electrochemical Performance in LIBs

Unraveling the Beneficial Microstructure Evolution in Pyrite for Boosted Lithium Storage Performance

Contact Info

Product

Resources

About