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[期刊论文]

Co0.85Se Nanoparticles Encapsulated by Nitrogen-Enriched Hierarchically Porous Carbon for High-Performance Lithium-Ion Batteries

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author:

Zhang, X. (Zhang, X..) [1] | Zhou, J. (Zhou, J..) [2] | Zheng, Y. (Zheng, Y..) [3] | Unfold

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Scopus

Abstract:

Coordination compound derivates (CCDs) have been widely applied in lithium-ion batteries (LIBs). However, the functionalization of CCDs with open structure and heteroatomic doping is still challenging. Herein, an effective functionalization strategy is presented to prepare a kind of CCD, where Co0.85Se nanoparticles are encapsulated by nitrogen-enriched hierarchically porous carbon (CS/NPC) based on the heat treatment of a cobalt-complexed hexamethylolmelamine-polyvinylpyrrolidone resin (Co2+/HPR). The abundant free volume and enriched N species of the HPR are responsible for the hierarchically porous configuration and high N-doping of the composites. By controlling the content of cobalt salt and the heating rate, high specific surface area (440.7 m2 g-1), high N-doping (8.54 atom %), and suitable mass loading of Co0.85Se (55.5%) were simultaneously achieved in CS-2/NPC-5, which delivers high reversible capacity (758.5 mAh g-1 at 0.1 A g-1), outstanding rate capability (401.7 mAh g-1 at 5 A g-1), and excellent cycling durability (638.4 mAh g-1 at 1 A g-1 after 200 cycles), suggesting a promising candidate for LIB anode materials. Copyright © 2020 American Chemical Society.

Keyword:

cobalt selenide; coordination compound derivates; lithium-ion batteries; nitrogen doping; porous structure

Community:

  • [ 1 ] [Zhang, X.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Zhou, J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Zheng, Y.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 4 ] [Zheng, Y.]Key Laboratory of New Rubber and Plastic Materials, Quanzhou, 362211, China
  • [ 5 ] [Zheng, Y.]Chenqi New Material Technology Co. Ltd., Quanzhou, 362200, China
  • [ 6 ] [Chen, D.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address:

  • [Zheng, Y.]College of Materials Science and Engineering, Fuzhou UniversityChina

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Source :

ACS Applied Materials and Interfaces

ISSN: 1944-8244

Year: 2020

Issue: 8

Volume: 12

Page: 9236-9247

9 . 2 2 9

JCR@2020

8 . 5 0 0

JCR@2023

ESI HC Threshold:196

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

30 Days PV: 0

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