Batteries: A 3D Hybrid of Chemically Coupled Nickel Sulfide and Hollow Carbon Spheres for High Performance Lithium–Sulfur Batteries (Adv. Funct. Mater. 33/2017)

Ye, Chao; Zhang, Lei; Guo, Chunxian; Li, Dongdong; Vasileff, Anthony; Wang, Haihui; Qiao, Shuang

doi:10.1002/adfm.201770191

Cited by 36 publications

(44 citation statements)

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“…However, these materials suffer from relatively poor ionic/electronic conductivity and limited surface area with a resultant low‐efficiency sulfur redox conversion. [ 19–25 ] Recently, Fe 3 C has been reported with strong electrocatalytic activity in oxygen reduction reaction (ORR), which inspires its application as sulfur promoter to facilitate the LiPS conversion process considering the similar redox mechanism between sulfur and oxygen electrochemistry. In addition, defect engineering has been revealed with good capability of altering the physicochemical and electronic structures for enhanced adsorptive and catalytic features, which offers a promising approach toward favorable sulfur host materials for improved Li–S battery chemistry.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

Zhang

Wang

et al. 2020

Adv Funct Materials

163

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Lithium-sulfur (Li-S) batteries present one of the most promising energy storage systems owing to their high energy density and low cost. However, the commercialization of Li-S batteries is still hindered by several technical issues; the notorious polysulfide shuttling and sluggish sulfur conversion kinetics. In this work, unique hierarchical Fe 3-x C@C hollow microspheres as an advanced sulfur immobilizer and promoter for enabling high-efficiency Li-S batteries is developed. The porous hollow architecture not only accommodates the volume variation upon the lithiation-delithiation processes, but also exposes vast active interfaces for facilitated sulfur redox reactions. Meanwhile, the mesoporous carbon coating establishes a highly conductive network for fast electron transportation. More importantly, the defective Fe 3-x C nanosized subunits impose strong LiPS adsorption and catalyzation, enabling fast and durable sulfur electrochemistry. Attributed to these structural superiorities, the obtained sulfur electrodes exhibit excellent electrochemical performance, i.e., high areal capacity of 5.6 mAh cm -2 , rate capability up to 5 C, and stable cycling over 1000 cycles with a low capacity fading rate of 0.04% per cycle at 1 C, demonstrating great promise in the development of practical Li-S batteries.

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Section: Introductionmentioning

confidence: 99%

Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

Zhang

Wang

et al. 2020

Adv Funct Materials

163

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“…Currently, metal-organic frameworks (MOFs), including zeolitic imidazolate frameworks (ZIFs), a class of highly porous materials assembled from transition metal ions and organic ligands, have been proved to be promising templates for the synthesis of metalbased carbon electrocatalysts. [28][29][30][31][32][33][34][35][36][37] Nevertheless, pristine MOFs usually show less competence in ORR/ OER, which is not ideal to meet the requirement of rechargeable batteries. [38][39][40] Alternatively, great efforts have been devoted to modulation of active sites by bimetallic doping, which is a feasible strategy to improve electrocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

In Situ Incorporation Strategy for Bimetallic FeCo‐Doped Carbon as Highly Efficient Bifunctional Oxygen Electrocatalysts

Shui

Jin

et al. 2018

ChemElectroChem

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Highly efficient bifunctional oxygen reduction reaction/oxygen evolution reaction (ORR/OER) electrocatalysts are of great significance for developing rechargeable metal–air batteries. A facile in situ incorporation strategy was proposed to introduce an iron‐based complex into a cobalt‐based ZIF‐67 framework. The resultant FeCo−N/C exhibited an excellent ORR activity with a high half‐wave potential of 0.84 V and simultaneous outstanding OER activity with a low overpotential of 370 mV at a current density of 10 mA cm−2 in 0.1 M KOH. The overall oxygen electrode activity was calculated to be as low as 0.77 V. This work provides new opportunities for the development of highly efficient bifunctional electrocatalysts.

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“…Ye published a paper regarding the variation in the activity of NiS according to the spatial configuration of NiS with carbon support . They prepared NiS particles distributed on the outside (C‐HS@NiS) and inside (NiS@C‐HS) of the carbon hollow sphere (Figure a).…”

Section: Discussion Of Metal Sulfides In a Li−s Batterymentioning

confidence: 99%

Role and Potential of Metal Sulfide Catalysts in Lithium‐Sulfur Battery Applications

Kim

Park

et al. 2019

ChemCatChem

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Sulfur has been explored as a cathode active material for post rechargeable batteries because of their various attractive features such as their high theoretical specific capacity which is more than six times that of typical Li‐ion battery (LIB) cathode materials (LiCoO2). Furthermore, as a by‐product of the oil refining process, it is abundant and inexpensive. Despite this, the low electrical conductivity of sulfur and the polysulfide shuttle effect in ether‐based electrolytes has become a major obstacle to the industrialization of lithium‐sulfur (Li−S) batteries. Among them, the polysulfide shuttle effect is the critical limitation to be solved and thus many researchers have been engaged in its solution. This work summarizes a variety of metal sulfide catalysts that have recently attracted attention as additives. In addition, a brief description of the metal sulfides interprets their ability to anchor polysulfides via surface polarity and to act as an electrocatalyst during polysulfide redox reactions. We describe the electrocatalytic activity and anchoring effect of metal sulfides in Li−S batteries and their future possibilities.

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Batteries: A 3D Hybrid of Chemically Coupled Nickel Sulfide and Hollow Carbon Spheres for High Performance Lithium–Sulfur Batteries (Adv. Funct. Mater. 33/2017)

Cited by 36 publications

References 0 publications

Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

In Situ Incorporation Strategy for Bimetallic FeCo‐Doped Carbon as Highly Efficient Bifunctional Oxygen Electrocatalysts

Role and Potential of Metal Sulfide Catalysts in Lithium‐Sulfur Battery Applications

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Batteries: A 3D Hybrid of Chemically Coupled Nickel Sulfide and Hollow Carbon Spheres for High Performance Lithium–Sulfur Batteries (Adv. Funct. Mater. 33/2017)

Cited by 36 publications

References 0 publications

Hierarchical Defective Fe3‐xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

Hierarchical Defective Fe3‐xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

In Situ Incorporation Strategy for Bimetallic FeCo‐Doped Carbon as Highly Efficient Bifunctional Oxygen Electrocatalysts

Role and Potential of Metal Sulfide Catalysts in Lithium‐Sulfur Battery Applications

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Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries

Hierarchical Defective Fe_3‐_xC@C Hollow Microsphere Enables Fast and Long‐Lasting Lithium–Sulfur Batteries