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
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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.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85163417973&origin=inward; http://dx.doi.org/10.1039/d3nr00888f; http://www.ncbi.nlm.nih.gov/pubmed/37293837; https://xlink.rsc.org/?DOI=D3NR00888F; https://dx.doi.org/10.1039/d3nr00888f; https://pubs.rsc.org/en/content/articlelanding/2023/nr/d3nr00888f
Royal Society of Chemistry (RSC)
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