能源化学(英文版) ›› 2020, Vol. 47 ›› Issue (8): 256-262.DOI: 10.1016/j.jechem.2020.02.017

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Flame-retarding battery cathode materials based on reversible multi-electron redox chemistry of phenothiazine-based polymer

Jing Lva, Jing Yeb, Gaole Daia, Zhihui Niuc, Yi Sund, Xiaohong Zhanga, Yu Zhaoa   

  1. a Institute of Functional Nano and Soft Materials(FUNSOM).Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices.Soochow University.Suzhou 215123.Jiangsu.China;
    b Analytical and Testing Centre.Soochow University.Suzhou 215123.Jiangsu.China;
    c School of Physics and Optoelectronic Engineering.Shandong University of Technology.Zibo 250049.Shandong.China;
    d College of Textile and Clothing Engineering.Soochow University.Suzhou 215123.Jiangsu.China
  • 收稿日期:2020-01-02 修回日期:2020-02-03 出版日期:2020-08-15 发布日期:2020-12-18
  • 通讯作者: Zhihui Niu, Yu Zhao
  • 基金资助:
    We acknowledge financial support from the National Natural Science Foundation of China (grant no.51772199).the Natural Science Foundation of Jiangsu Province (Grant no.BK20170329).the Collaborative Innovation Center of Suzhou Nano Science & Technology.the Priority Academic Program Development of Jiangsu Higher Education Institutions.and the 111 Project.

Flame-retarding battery cathode materials based on reversible multi-electron redox chemistry of phenothiazine-based polymer

Jing Lva, Jing Yeb, Gaole Daia, Zhihui Niuc, Yi Sund, Xiaohong Zhanga, Yu Zhaoa   

  1. a Institute of Functional Nano and Soft Materials(FUNSOM).Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices.Soochow University.Suzhou 215123.Jiangsu.China;
    b Analytical and Testing Centre.Soochow University.Suzhou 215123.Jiangsu.China;
    c School of Physics and Optoelectronic Engineering.Shandong University of Technology.Zibo 250049.Shandong.China;
    d College of Textile and Clothing Engineering.Soochow University.Suzhou 215123.Jiangsu.China
  • Received:2020-01-02 Revised:2020-02-03 Online:2020-08-15 Published:2020-12-18
  • Supported by:
    We acknowledge financial support from the National Natural Science Foundation of China (grant no.51772199).the Natural Science Foundation of Jiangsu Province (Grant no.BK20170329).the Collaborative Innovation Center of Suzhou Nano Science & Technology.the Priority Academic Program Development of Jiangsu Higher Education Institutions.and the 111 Project.

摘要: Developing the highly active.cost-effective.environmental-friendly.and ultra-stable nonprecious electrocatalysts for hydrogen evolution reaction (HER) is distinctly indispensable for the large-scale practical applications of hydrolytic hydrogen production.Herein.we report the synthesis of well-integrated electrode.NiV layered double hydroxide nanosheet array grown in-situ on porous nickel foam (abbreviated as in-NiV-LDH/NF) via the facile one-step hydrothermal route.Interestingly.the valence configuration of vanadium (V) sites in such NiV-LDH are well dominated by the innovative use of NF as the reducing regulator.achieving the reassembled in-NiV-LDH/NF with a high proportion of trivalent V ions (V3+).and then an enhanced intrinsic electrocatalytic HER activity.The HER testing results show that the in-NiV-LDH/NF drives the current densities of 10 and 100 mA cm-2 at extremely low overpotentials of 114 and 245 mV without iR-compensation respectively.even outperforms commercial 20 wt% Pt/C at the large current density of over 80 mA cm-2 in alkaline media.as well as gives robust catalytic durability of at least 100 h in both alkaline and neutral media.More importantly.this work provides a fresh perspective for designing bimetal (oxy) hydroxides electrocatalysts with efficient hydrogen generation.

关键词: Flame retardancy, Molecular design, Phenothiazine, Batteries, Energy storage

Abstract: Developing the highly active.cost-effective.environmental-friendly.and ultra-stable nonprecious electrocatalysts for hydrogen evolution reaction (HER) is distinctly indispensable for the large-scale practical applications of hydrolytic hydrogen production.Herein.we report the synthesis of well-integrated electrode.NiV layered double hydroxide nanosheet array grown in-situ on porous nickel foam (abbreviated as in-NiV-LDH/NF) via the facile one-step hydrothermal route.Interestingly.the valence configuration of vanadium (V) sites in such NiV-LDH are well dominated by the innovative use of NF as the reducing regulator.achieving the reassembled in-NiV-LDH/NF with a high proportion of trivalent V ions (V3+).and then an enhanced intrinsic electrocatalytic HER activity.The HER testing results show that the in-NiV-LDH/NF drives the current densities of 10 and 100 mA cm-2 at extremely low overpotentials of 114 and 245 mV without iR-compensation respectively.even outperforms commercial 20 wt% Pt/C at the large current density of over 80 mA cm-2 in alkaline media.as well as gives robust catalytic durability of at least 100 h in both alkaline and neutral media.More importantly.this work provides a fresh perspective for designing bimetal (oxy) hydroxides electrocatalysts with efficient hydrogen generation.

Key words: Flame retardancy, Molecular design, Phenothiazine, Batteries, Energy storage