Cited by 100Electrocatalysts for Energy ConversionAdvanced battery technologies researchSupercapacitor Materials and Fabrication

Silk-Derived Highly Active Oxygen Electrocatalysts for Flexible and Rechargeable Zn–Air Batteries

Wang, Chunya, Xie, Nan-Hong, Zhang, Yelong, Huang, Zhenghong, Xia, Kailun, Wang, Huimin, Guo, Shaojun, Xu, Bo-Qing +1 more·2019·Chemistry of Materials

Abstract

Flexible and rechargeable Zn–air batteries, because of their high energy density, low cost, and environmental and human benignity, are one kind of the most attractive energy systems for future wearable electronics. The development of high-performance rechargeable Zn–air batteries depends on the synthesis of highly efficient and highly stable electrocatalysts for the oxygen reduction reaction/oxygen evolution reaction (ORR/OER). Herein, a silk-derived defect-rich and nitrogen-doped nanocarbon electrocatalyst [SilkNC/Ketjenblack (KB)] is reported. The SilkNC/KB is synthesized by pyrolyzing commercially available porous KB carbon impregnated with silk fibroin. It exhibits remarkable electrocatalytic activities and long-term stability for the ORR/OER, enabling its applications in high-performance liquid and solid rechargeable Zn–air batteries. Particularly, the all-solid-state Zn–air battery based on SilkNC/KB exhibits good flexibility and remarkable charge/discharge stability, enabling its promising applications in wearable and energy-efficient batteries.

Integrity signals

Registry

Crossref · 10.1021/acs.chemmater.8b04572

Cites

35 of 35 references verified0 citation errors · 0 not checkable

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  • The N1s spectrum of SilkNCT can be fitted by four peaks attributed to pyridinic N, pyrrolic N, quaternary or graphitic N, and pyridine N-oxide N, indicating that part of N elements in pristine silk transformed into N substituents in graphitic carbon.

    “Figure 1F shows that the N1s spectrum could be fitted by four peaks attributed to the pyridinic N, pyrrolic N, quaternary or graphitic N, and pyridine N-oxide N, respectively, indicating that part of N elements in pristine silk has transformed into N substituents in graphitic carbon (34, 35, 37).”
  • Silk fabrics can be transformed into highly conductive, intrinsically nitrogen-doped, flexible, and structure-maintained carbon textiles through thermal treatment.

    “Recently, it has been reported that silk fabrics can be transformed into highly conductive, intrinsically nitrogen-doped, flexible, and structure-maintained carbon textiles through thermal treatment (30–35).”

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Authors
Wang, C., Xie, N.-H., Zhang, Y., Huang, Z., Xia, K., Wang, H., Guo, S., Xu, B.-Q., & Zhang, Y.
Affiliations
  • Tsinghua University (CN)
  • Peking University (CN)
Corresponding author
  • Guo, Shaojun
  • Xu, Bo-Qing
  • Zhang, Yingying
Venue
Chemistry of Materials
Published
2019-01-03
Volume
31
Issue
3
Pages
1023-1029
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2907303687
Cited by
100
References
36
Citations by year
2026: 3 · 2025: 8 · 2024: 8 · 2023: 12 · 2022: 11 · 2021: 19 · 2020: 27 · 2019: 12
FWCI
3.67
Type
journal article
Language
en
Open access
closed
Locations
Chemistry of Materials (publishedVersion)
Funders
  • Ministry of Science and Technology of the People's Republic of China (2016YFA0200103)
  • National Natural Science Foundation of China (51672153)
  • Organization Department of the Communist Party of China Central Committee
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced battery technologies research
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
Keywords
zinc-air batteries, oxygen reduction reaction, oxygen evolution reaction, electrocatalysts, silk fibroin, nitrogen-doped carbon, Ketjen Black, pyrolysis, flexible batteries, all-solid-state batteries, rechargeable batteries, wearable electronics

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