FeS anchored reduced graphene oxide nanosheets as advanced anode material with superior high-rate performance for alkaline secondary batteries

Shangguan, Enbo; Guo, Litan; Li, Fēi; Wang, Qin; Li, Jing; Li, Quanmin; Chang, Zhaorong; Yuan, Xiao‐Zi

doi:10.1016/j.jpowsour.2016.07.031

Cited by 78 publications

(55 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sulfur peak intensity arising in the NH 4 Cl‐S 2 O 3 2− survey spectra appears to be low (Figure S5b in the Supporting Information). However, similar results for S 2p were also reported by other research groups . Furthermore, the high‐resolution spectra obtained for S 2p clearly implies that sulfur‐based species (including FeS) are present on the sample.…”

Section: Resultssupporting

confidence: 90%

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Baranwal

Rajaraman

2019

Int J of Chemical Kinetics

View full text Add to dashboard Cite

The dissolution behavior of carbon steel in ammonium chloride (NH4Cl) solution containing sodium thiosulfate (Na2S2O3) of various concentrations (0.01 and 0.1 M) was investigated using electrochemical impedance spectroscopy (EIS) and other nonelectrochemical techniques. The weight loss and polarization measurements indicate a significant increase in the NH4Cl corrosion rate of carbon steel on addition of Na2S2O3. The EIS measurements exhibited two capacitive loops at multiple direct current (dc) potentials for both the concentrations. Electrical equivalent circuit (EEC) and reaction mechanism analysis (RMA) were employed to analyze the impedance data. A four‐step mechanism with two intermediate adsorbate species of same charge was proposed to explain the dissolution behavior of carbon steel in the given system. The surface coverage values enumerated that the surface was entirely covered with adsorbed species unlike in the pure NH4Cl system. Charge transfer resistance and polarization resistance values estimated from RMA parameters indicate the increase in a dissolution rate with dc potential. The surface morphology was inspected via field emission scanning electron microscopy, and the corrosion products including surface state of carbon steel electrode were analyzed using energy dispersive X‐ray spectroscopy and X‐ray photoelectron spectroscopy.

show abstract

Section: Resultssupporting

confidence: 90%

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Baranwal

Rajaraman

2019

Int J of Chemical Kinetics

View full text Add to dashboard Cite

show abstract

“…For S 2p spectra (Figure e), a pair of peaks at lower binding energy (blue color) correspond to the sulfide (S 2− ), and those at higher binding energy (purple color) are related to the S n 2− , which may be generated by the minor oxidation of S 2− . Additionally, the weak and broad peak at 168 eV (orange color) should correspond to the sulfur species at higher oxidation state (SO x ) . For CoFeS@rGO composite, an obvious peak of Co 2p indicates the successful Co substitution in iron sulfide (Figure S8b, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Promoting Highly Reversible Sodium Storage of Iron Sulfide Hollow Polyhedrons via Cobalt Incorporation and Graphene Wrapping

Huang

Fan

Xie

et al. 2019

Advanced Energy Materials

View full text Add to dashboard Cite

Sodium ion batteries (SIBs) have drawn significant attention owing to their low cost and inherent safety. However, the absence of suitable anode materials with high rate capability and long cycling stability is the major challenge for the practical application of SIBs. Herein, an efficient anode material consisting of uniform hollow iron sulfide polyhedrons with cobalt doping and graphene wrapping (named as CoFeS@rGO) is developed for high‐rate and long‐life SIBs. The graphene‐encapsulated hollow composite assures fast and continuous electron transportation, high Na+ ion accessibility, and strong structural integrity, showing an extremely small volume expansion of only 14.9% upon sodiation and negligible volume contraction during the desodiation. The CoFeS@rGO electrode exhibits high specific capacity (661.9 mAh g−1 at 100 mA g−1), excellent rate capability (449.4 mAh g−1 at 5000 mA g−1), and long cycle life (84.8% capacity retention after 1500 cycles at 1000 mA g−1). In situ X‐ray diffraction and selected‐area electron diffraction patterns show that this novel CoFeS@rGO electrode is based on a reversible conversion reaction. More importantly, when coupled with a Na3V2(PO4)3/C cathode, the sodium ion full battery delivers a superexcellent rate capability (496.8 mAh g−1 at 2000 mA g−1) and ≈96.5% capacity retention over 200 cycles at 500 mA g−1 in the 1.0–3.5 V window. This work indicates that the rationally designed anode material is highly applicable for the next generation SIBs with high‐rate capability and long‐term cyclability.

show abstract

“…[6,46] The I D /I G intensity ratios of bare GO and rGO/MnO 2 aerogel are determined to be 0.8 and 1.0, respectively,i ndicating the existence of rGO compared to that of GO during the solvothermal process. [47] The high D/G intensity ratio in the rGO/MnO 2 aerogel benefits the electron transportation from/tot he poorly conducting sulfur, which can be attributed to partially graphitized carbon matrix. [48] The specific surface area and porosity of the rGO/ MnO 2 and rGM-SA67 composites were characterizedb yN 2 adsorption-desorptioni sotherms.A ss hown in Figure S2, Supporting Information, the specific surface area of rGO/MnO 2 aerogel is calculated to be 158.2 m 2 g À1 by the Brunauer-Emmett-Te ller (BET) analysis, which is much larger than that of rGM-SA67 composite of 95.7 m 2 g À1 (Figure 2d).…”

Section: Resultsmentioning

confidence: 99%

“…Typical Nyquist plots are shown in Figure a. Two depressed semicircles at medium‐to‐high frequencies and inclined lines at low frequency are present, corresponding to the interface impedance and charge‐transfer resistances of the sulfur cathodes and Warburg impedance ( W ) of Li + diffusion within the electrode, respectively . It is quite obvious that the resistance of the rG‐SA66 (28.3 Ω) electrode is lower than S (powder, 74.0 Ω), rGM‐SA55 (33.5 Ω), rGM‐SA67 (46.5 Ω), and rGM‐SA79 (55.7 Ω) electrodes.…”

Section: Resultsmentioning

confidence: 99%

“…Raman spectra were conducted for the bare GO and rGO/MnO 2 aerogel of the carbon material, with the results illustrated in Figure c. The typical characteristic peaks of the d ‐band (the vibrations of carbon atoms with dangling bonds for the in‐plane terminations of disordered graphite) and G‐band (vibration for all sp 2 ‐bonded carbon atoms) of carbon are observed at around 1355.9 and 1601.1 cm −1 , respectively . The I D / I G intensity ratios of bare GO and rGO/MnO 2 aerogel are determined to be 0.8 and 1.0, respectively, indicating the existence of rGO compared to that of GO during the solvothermal process . The high D/G intensity ratio in the rGO/MnO 2 aerogel benefits the electron transportation from/to the poorly conducting sulfur, which can be attributed to partially graphitized carbon matrix .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Facile Assembly of 3D Porous Reduced Graphene Oxide/Ultrathin MnO₂ Nanosheets‐S Aerogels as Efficient Polysulfide Adsorption Sites for High‐Performance Lithium–Sulfur Batteries

Zhao

Wang

Zhai

et al. 2017

Chemistry A European J

View full text Add to dashboard Cite

Rechargeable lithium-sulfur (Li-S) batteries are receiving much attention due to their high specific capacity, low cost, and environmental friendliness. Nonetheless, fast capacity decay and low specific capacity still limit their practical implementation. Herein, we report a facile strategy to overcome these challenges by the design and fabrication of 3D porous reduced graphene oxide/ultrathin MnO nanosheets-S aerogel (rGM-SA) composites for Li-S batteries. By a simple solvothermal reaction process, nanosized S atoms are homogeneously decorated into the 3D scaffold formed by reduced graphene oxide (rGO) and MnO nanosheets, which can form the homogeneous rGM-SA composites. In this porous network architecture, rGO serves as an electron and ion transfer pathway, a physical adsorption site for polysulfides, and provides structural stability. The ultrathin MnO nanosheets provide strong binding sites for trapping polysulfide intermediates. The 3D porous rGO/MnO architecture enables rapid ion transport and buffers volume expansion of sulfur during discharge. The rGM-SA composites can be directly used as lithium-sulfur battery cathodes without using binder and conductive additive. As a result of this multifunctional arrangement, the rGM-SA composites exhibit high and stable-specific capacities over 200 cycles and excellent high-rate performances.

show abstract

FeS anchored reduced graphene oxide nanosheets as advanced anode material with superior high-rate performance for alkaline secondary batteries

Cited by 78 publications

References 55 publications

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Promoting Highly Reversible Sodium Storage of Iron Sulfide Hollow Polyhedrons via Cobalt Incorporation and Graphene Wrapping

Facile Assembly of 3D Porous Reduced Graphene Oxide/Ultrathin MnO₂ Nanosheets‐S Aerogels as Efficient Polysulfide Adsorption Sites for High‐Performance Lithium–Sulfur Batteries

Contact Info

Product

Resources

About

FeS anchored reduced graphene oxide nanosheets as advanced anode material with superior high-rate performance for alkaline secondary batteries

Cited by 78 publications

References 55 publications

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Kinetics of carbon steel dissolution in ammonium chloride solution containing sodium thiosulfate

Promoting Highly Reversible Sodium Storage of Iron Sulfide Hollow Polyhedrons via Cobalt Incorporation and Graphene Wrapping

Facile Assembly of 3D Porous Reduced Graphene Oxide/Ultrathin MnO2 Nanosheets‐S Aerogels as Efficient Polysulfide Adsorption Sites for High‐Performance Lithium–Sulfur Batteries

Contact Info

Product

Resources

About

Facile Assembly of 3D Porous Reduced Graphene Oxide/Ultrathin MnO₂ Nanosheets‐S Aerogels as Efficient Polysulfide Adsorption Sites for High‐Performance Lithium–Sulfur Batteries