Three-dimensionally ordered hierarchically porous polypyrrole loading sulfur as high-performance cathode for lithium/sulfur batteries

Li, Haipeng; Wei, Yaqiong; Ren, Jun; Zhang, Wulin; Zhang, Chengwei; Zhang, Yongguang

doi:10.1016/j.polymer.2018.01.022

Cited by 41 publications

(38 citation statements)

References 48 publications

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“…But the interaction between OH — at surface of silica spheres and N + species of PPy restricts the shrinkage of PPy. Thus, nanopores on macroporous walls of PPy are obtained after solvent evaporation . After the PPy materials were heated under the protection of N 2 , nanopores on macroporous walls are preserved .…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic Activity and Stability of 3D Ordered N‐doped Hierarchically Porous Carbon Supported Pt Catalyst for Methanol Oxidation and Oxygen Reduction Reactions

Wang

Xie³

et al. 2019

ChemistrySelect

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Herein, nitrogen‐doped ordered hierarchical porous carbon (N‐OHPC) is fabricated via a templating method by applying silica colloidal crystal as template and polypyrrole (PPy) as carbon source. The as‐prepared N‐OHPC possesses ordered interconnected macropores, rich mesopores and large BET surface area (825.6 m2 g−1). Pt/N‐OHPC is then prepared by depositing Pt nanoparticles (19.3 wt%) on N‐OHPC as catalyst towards methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). The Pt/N‐OHPC containing small and uniform Pt nanoparticles (∼1.7 nm) exhibits good electrocatalytic performance and better durability for MOR and ORR than the commercial Pt/C catalyst.

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Section: Resultsmentioning

confidence: 99%

Electrocatalytic Activity and Stability of 3D Ordered N‐doped Hierarchically Porous Carbon Supported Pt Catalyst for Methanol Oxidation and Oxygen Reduction Reactions

Wang

Xie³

et al. 2019

ChemistrySelect

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“…Additionally, the PPy-coated separator was used to prevent LiPSs shuttling, and the results indicated that the PPy host and functionalized separator greatly enhanced the electrochemical performance of Li-S batteries. To support sulfur particles, three-dimensional (3D) porous PPy was synthesized using silica (SiO 2 ) spheres as templates [62] . The ordered macropores and mesopores/micropores of PPy provided fast transport paths for Li + ions, and suppressed the shuttling of dissolved LiPSs.…”

Section: Conducting Polymersmentioning

confidence: 99%

Recent advances in chemical adsorption and catalytic conversion materials for Li–S batteries

Hong

Wang

Liu

et al. 2020

Journal of Energy Chemistry

225

103

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“…Cui et al reported a S/TiO 2 yolk‐shell nanoarchitecture to accommodate the volume expansion of S. The composite exhibited an improved electrochemical performance . Recently, Zhang et al prepared a 3D ordered mesoporous polypyrrole with a hierarchical structure possessing interconnected macropores, which exhibited a good potential as S host . In addition, as an efficient conductive host, carbon provides an improved electrical and ionic conductivity.…”

Section: Surface Adsorption Energy and Bader Charge Analysis Towards mentioning

confidence: 99%

Three‐Dimensionally Scaffolded Hydrogel@Sulfur Composite as a Binder‐Free Polysulfides‐Adsorptive Cathode for High‐Performance Lithium‐Sulfur Batteries

et al. 2019

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Chemically and mechanically robust sulfur (S) cathodes are highly significant for high‐performance lithium‐sulfur (Li‐S) batteries. Herein, a novel 3D hydrogel@S composite as binder‐free high‐performance cathode is presented, which consists of a 3D conductive hydrogel polyaniline (PAN) scaffold coated with dense S particles. The 3D PAN@S composite exhibits polysulfides‐adsorptive performance, suitable structure for accommodating the volume change of S upon lithiation, and improved overall conductivity of the electrode. After cycling for 100 times at 0.2 C, the binder‐free 3D PAN@S composite shows a capacity of 816 mAh g−1, along with a Coulombic efficiency as high as 99.9%. A good electrochemical performance is also achieved when cycling at a high temperature of 50 °C. In addition, the adsorptive effect of PAN towards polysulfides is demonstrated through density functional theory calculations on the adsorption energies.

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Three-dimensionally ordered hierarchically porous polypyrrole loading sulfur as high-performance cathode for lithium/sulfur batteries

Cited by 41 publications

References 48 publications

Electrocatalytic Activity and Stability of 3D Ordered N‐doped Hierarchically Porous Carbon Supported Pt Catalyst for Methanol Oxidation and Oxygen Reduction Reactions

Electrocatalytic Activity and Stability of 3D Ordered N‐doped Hierarchically Porous Carbon Supported Pt Catalyst for Methanol Oxidation and Oxygen Reduction Reactions

Recent advances in chemical adsorption and catalytic conversion materials for Li–S batteries

Three‐Dimensionally Scaffolded Hydrogel@Sulfur Composite as a Binder‐Free Polysulfides‐Adsorptive Cathode for High‐Performance Lithium‐Sulfur Batteries

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