The Experts below are selected from a list of 16689 Experts worldwide ranked by ideXlab platform

Jianping Yang - One of the best experts on this subject based on the ideXlab platform.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao
    Abstract:

    There is intensive research into the development of sodium–metal Sulfide batteries. Here, the authors report a yolk-shell-like Iron Sulfide–carbon nanosphere structure as the cathode material which displays exceptionally high performance.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao, Huakun Liu, S X Dou
    Abstract:

    Sodium-metal Sulfide battery holds great promise for sustainable and cost-effective applications. Nevertheless, achieving high capacity and cycling stability remains a great challenge. Here, uniform yolk-shell Iron Sulfide-carbon nanospheres have been synthesized as cathode materials for the emerging sodium Sulfide battery to achieve remarkable capacity of ∼ 545 mA h g(-1) over 100 cycles at 0.2 C (100 mA g(-1)), delivering ultrahigh energy density of ∼ 438 Wh kg(-1). The proven conversion reaction between sodium and Iron Sulfide results in high capacity but severe volume changes. Nanostructural design, including of nanosized Iron Sulfide yolks (∼ 170 nm) with porous carbon shells (∼ 30 nm) and extra void space (∼ 20 nm) in between, has been used to achieve excellent cycling performance without sacrificing capacity. This sustainable sodium-Iron Sulfide battery is a promising candidate for stationary energy storage. Furthermore, this spatially confined sulfuration strategy offers a general method for other yolk-shell metal Sulfide-carbon composites.

Yunxiao Wang - One of the best experts on this subject based on the ideXlab platform.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao
    Abstract:

    There is intensive research into the development of sodium–metal Sulfide batteries. Here, the authors report a yolk-shell-like Iron Sulfide–carbon nanosphere structure as the cathode material which displays exceptionally high performance.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao, Huakun Liu, S X Dou
    Abstract:

    Sodium-metal Sulfide battery holds great promise for sustainable and cost-effective applications. Nevertheless, achieving high capacity and cycling stability remains a great challenge. Here, uniform yolk-shell Iron Sulfide-carbon nanospheres have been synthesized as cathode materials for the emerging sodium Sulfide battery to achieve remarkable capacity of ∼ 545 mA h g(-1) over 100 cycles at 0.2 C (100 mA g(-1)), delivering ultrahigh energy density of ∼ 438 Wh kg(-1). The proven conversion reaction between sodium and Iron Sulfide results in high capacity but severe volume changes. Nanostructural design, including of nanosized Iron Sulfide yolks (∼ 170 nm) with porous carbon shells (∼ 30 nm) and extra void space (∼ 20 nm) in between, has been used to achieve excellent cycling performance without sacrificing capacity. This sustainable sodium-Iron Sulfide battery is a promising candidate for stationary energy storage. Furthermore, this spatially confined sulfuration strategy offers a general method for other yolk-shell metal Sulfide-carbon composites.

Dongyuan Zhao - One of the best experts on this subject based on the ideXlab platform.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao
    Abstract:

    There is intensive research into the development of sodium–metal Sulfide batteries. Here, the authors report a yolk-shell-like Iron Sulfide–carbon nanosphere structure as the cathode material which displays exceptionally high performance.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao, Huakun Liu, S X Dou
    Abstract:

    Sodium-metal Sulfide battery holds great promise for sustainable and cost-effective applications. Nevertheless, achieving high capacity and cycling stability remains a great challenge. Here, uniform yolk-shell Iron Sulfide-carbon nanospheres have been synthesized as cathode materials for the emerging sodium Sulfide battery to achieve remarkable capacity of ∼ 545 mA h g(-1) over 100 cycles at 0.2 C (100 mA g(-1)), delivering ultrahigh energy density of ∼ 438 Wh kg(-1). The proven conversion reaction between sodium and Iron Sulfide results in high capacity but severe volume changes. Nanostructural design, including of nanosized Iron Sulfide yolks (∼ 170 nm) with porous carbon shells (∼ 30 nm) and extra void space (∼ 20 nm) in between, has been used to achieve excellent cycling performance without sacrificing capacity. This sustainable sodium-Iron Sulfide battery is a promising candidate for stationary energy storage. Furthermore, this spatially confined sulfuration strategy offers a general method for other yolk-shell metal Sulfide-carbon composites.

Wei Huang - One of the best experts on this subject based on the ideXlab platform.

  • three dimensional Iron Sulfide carbon interlocked graphene composites for high performance sodium ion storage
    Nanoscale, 2018
    Co-Authors: Wei Huang, Huihui Shangguan, Xinxin Xiao, Fei Shen, Kristian Molhave, Lijie Ci, Pengchao Si, Jingdong Zhang
    Abstract:

    Three-dimensional (3D) carbon-wrapped Iron Sulfide interlocked graphene (Fe7S8@C-G) composites for high-performance sodium-ion storage are designed and produced through electrostatic interactions and subsequent sulfurization. The Iron-based metal–organic frameworks (MOFs, MIL-88-Fe) interact with graphene oxide sheets to form 3D networks, and carbon-wrapped Iron Sulfide (Fe7S8@C) nanoparticles with high individual-particle conductivity are prepared following a sulfurization process, surrounded by interlocked graphene sheets to enhance the interparticle conductivity. The prepared Fe7S8@C-G composites exhibit not only improved individual-particle and interparticle conductivity to shorten electron/ion diffusion pathways, but also enhanced structural stability to prevent the aggregation of active materials and buffer large volume changes during sodiation/desodiation. As a sodium-ion storage material, the Fe7S8@C-G composites exhibit a reversible capacity of 449 mA h g−1 at 500 mA g−1 after 150 cycles and a retention capacity of 306 mA h g−1 under a current density of 2000 mA g−1. The crucial factors related to the structural changes and stability during cycles have been further investigated. These results demonstrate that the high-performance sodium-ion storage properties are mainly attributed to the uniquely designed three-dimensional configuration.

  • metal organic framework derived Iron Sulfide carbon core shell nanorods as a conversion type battery material
    ACS Sustainable Chemistry & Engineering, 2017
    Co-Authors: Wei Huang, Xianyi Cao, Chengyi Hou, Zhen Zhang, Jinkui Feng, Qijin Chi
    Abstract:

    We report the design and nanoengineering of carbon-film-coated Iron Sulfide nanorods (C@Fe7S8) as an advanced conversion-type lithium-ion storage material. The structural advantages of the Iron-based metal–organic framework (MIL-88-Fe) as both a sacrificed template and a precursor are explored to prepare carbon-encapsulated ploy Iron Sulfide through solid-state chemical sulfurizing. The resulting core–shell nanorods consisting of approximately 13% carbon and 87% Fe7S8 have a hierarchically porous structure and a very high specific surface area of 277 m2 g–1. When tested for use in fabrication of a redox conversion-type lithium-ion battery, this composite material has demonstrated high lithium-ion storage capacity at 1148 mA h g–1 under the current rate of 500 mA g–1 for 170 cycles and an impressive rate-retention capability at 657 mA h g–1 with a current density of 2000 mA g–1. On the basis of systematic structural analysis and microscopic mapping, we discuss the charge–discharge mechanisms and the crucia...

S X Dou - One of the best experts on this subject based on the ideXlab platform.

  • uniform yolk shell Iron Sulfide carbon nanospheres for superior sodium Iron Sulfide batteries
    Nature Communications, 2015
    Co-Authors: Yunxiao Wang, Jianping Yang, Shulei Chou, Weixian Zhang, Dongyuan Zhao, Huakun Liu, S X Dou
    Abstract:

    Sodium-metal Sulfide battery holds great promise for sustainable and cost-effective applications. Nevertheless, achieving high capacity and cycling stability remains a great challenge. Here, uniform yolk-shell Iron Sulfide-carbon nanospheres have been synthesized as cathode materials for the emerging sodium Sulfide battery to achieve remarkable capacity of ∼ 545 mA h g(-1) over 100 cycles at 0.2 C (100 mA g(-1)), delivering ultrahigh energy density of ∼ 438 Wh kg(-1). The proven conversion reaction between sodium and Iron Sulfide results in high capacity but severe volume changes. Nanostructural design, including of nanosized Iron Sulfide yolks (∼ 170 nm) with porous carbon shells (∼ 30 nm) and extra void space (∼ 20 nm) in between, has been used to achieve excellent cycling performance without sacrificing capacity. This sustainable sodium-Iron Sulfide battery is a promising candidate for stationary energy storage. Furthermore, this spatially confined sulfuration strategy offers a general method for other yolk-shell metal Sulfide-carbon composites.