Soft-templated synthesis of core-shell heterostructured Ni3S2@polypyrrole nanotube aerogels as anode materials for high-performance lithium ion batteries

Wang，Bo1; Li，Yue1,2; Han，Liyan1; Liu，Kun1; Hao，Bin1; Wu，Xiaoyu3

2021-08-07

10.1039/d1nj01841h

NEW JOURNAL OF CHEMISTRY   影响因子和分区

1144-0546

1369-9261

Building additional functionality into self-assembled conductive polymer nanotubes with high electrical conductivity, fast charge/discharge capability, and high mechanical strength is of great interest for energy storage materials and applications. Well-defined core-shell heterostructured NiS@polypyrrole (NiS@PPy) nanotube aerogels, hollow polypyrrole nanotubes wrapped by uniform NiSlayers, were fabricatedviaa facile two-step process, chemical oxidative polymerization assisted by a lithocholic acid soft-template and a biomolecule-assisted hydrothermal process. With the unique core-shell nanotube network structure, the PPy nanotubes would offer the largest surface area, short paths for Lidiffusion and numerous active sites, while the PPy nanotube matrix would prefer fast charge transportation and buffer the volume change of NiSduring lithiation/delithiation processes. When directly used as an anode material for lithium-ion batteries, the as-prepared core-shell heterostructured NiS@PPy nanotube aerogel electrode exhibits high reversible capacity, good rate capability, and improved cycling stability. A reversible capacity of 645.4 mA h gis sustained at a current density of 100 mA gafter 1000 cycles, showing better cycling stability than the NiSpowder pasted electrode. The low densities, large surface areas, and three-dimensional network features of the resulting NiS@PPy nanotube aerogels render them attractive for potential energy conversion/storage devices.

SCI ; EI

英语

其他

WOS:000670331100001

20213110701139

Aerogels ; Anodes ; Charging (batteries) ; Conducting polymers ; Energy conversion ; Energy storage ; Lithium-ion batteries ; Nanotubes ; Nickel compounds ; Polypyrroles ; Potential energy ; Shells (structures)

Structural Members and Shapes:408.2 ; Energy Conversion Issues:525.5 ; Energy Storage:525.7 ; Secondary Batteries:702.1.2 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Colloid Chemistry:801.3 ; Polymeric Materials:815.1 ; Organic Polymers:815.1.1

CHEMISTRY

2-s2.0-85111364097

Scopus

1.Department of Environmental and Chemical Engineering,Tangshan University,Tangshan,063000,China
2.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,066004,China
3.Department of Chemistry,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China

Wang，Bo,Li，Yue,Han，Liyan,et al. Soft-templated synthesis of core-shell heterostructured Ni3S2@polypyrrole nanotube aerogels as anode materials for high-performance lithium ion batteries[J]. NEW JOURNAL OF CHEMISTRY,2021,45(29):13127-13136.

Wang，Bo,Li，Yue,Han，Liyan,Liu，Kun,Hao，Bin,&Wu，Xiaoyu.(2021).Soft-templated synthesis of core-shell heterostructured Ni3S2@polypyrrole nanotube aerogels as anode materials for high-performance lithium ion batteries.NEW JOURNAL OF CHEMISTRY,45(29),13127-13136.

Wang，Bo,et al."Soft-templated synthesis of core-shell heterostructured Ni3S2@polypyrrole nanotube aerogels as anode materials for high-performance lithium ion batteries".NEW JOURNAL OF CHEMISTRY 45.29(2021):13127-13136.