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Cobalt selenide with ordered cation vacancies for efficient oxygen reduction and frigostable Al-air batteries

Nanoscale, ISSN: 2040-3372, Vol: 15, Issue: 24, Page: 10383-10393
2023
  • 1
    Citations
  • 0
    Usage
  • 5
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
    • Citation Indexes
      1
  • Captures
    5
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Aerospace Research Institute of Materials & Processing Technology Reports Findings in Nanofibers (Cobalt Selenide With Ordered Cation Vacancies for Efficient Oxygen Reduction and Frigostable Al-air Batteries)

2023 JUL 07 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- Current study results on Nanotechnology - Nanofibers have been published.

Article Description

Aluminum-air batteries are still inhibited by the sluggish cathodic oxygen reduction reactions, especially in low temperature conditions. Thus, it is urgent to develop efficient electrocatalysts for Al-air batteries to allow their use in extreme weather conditions. In this work, hexagonal CoSe-decorated N,Se co-doped carbon nanofibers (CoSe@N,Se-CNFs) were synthesized via facile carbonization/selenization of electrospun ZIF-67 nanocubes. The as-prepared metallic CoSe with ordered structural cation vacancies endows CoSe@N,Se-CNFs with remarkable oxygen reduction reaction activity, including high onset and half-wave potentials (0.93 V and 0.87 V vs. RHE, respectively). Consequently, the corresponding Al-air battery exhibits superior performance in a wide range of operating temperatures (−40-50 °C). For instance, this Al-air battery exhibits a voltage from 0.15-1.2 V with a peak power density of about 0.7 mW cm at −40 °C. It is expected that TMSe-decorated N,Se co-doped carbon nanofibers could be applied in extensive energy fields.

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