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Pregled bibliografske jedinice broj: 1105446

Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries


Chen, Kai; Kim, Seonghee; Je, Minyeong; Choi, Heechae; Shi, Zhicong; Vladimir, Nikola; Kim, Kwang Ho; Li, Oi Lun
Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries // Nano-Micro Letters, 13 (2021), 60, 20 doi:10.1007/s40820-020-00581-4 (međunarodna recenzija, članak, znanstveni)


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Naslov
Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries

Autori
Chen, Kai ; Kim, Seonghee ; Je, Minyeong ; Choi, Heechae ; Shi, Zhicong ; Vladimir, Nikola ; Kim, Kwang Ho ; Li, Oi Lun

Izvornik
Nano-Micro Letters (2311-6706) 13 (2021); 60, 20

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Single-atom-doped M-N4/NC catalyst ; Plasma engineering ; ORR/OER bifunctional activity ; DFT calculation ; Rechargeable Zn-air battery

Sažetak
As bifunctional oxygen evolution/reduction electrocatalysts, transition-metal-based singleatom-doped nitrogen-carbon (NC) matrices are promising successors of the corresponding noble- metal-based catalysts, offering the advantages of ultrahigh atom utilization efficiency and surface active energy. However, the fabrication of such matrices (e.g., well-dispersed single-atom-doped M-N4/NCs) often requires numerous steps and tedious processes. Herein, ultrasonic-plasma engineering allows direct carbonization in a precursor solution containing metal-phthalocyanine and aniline. When combining with the dispersion effect of ultrasonic waves, we successfully fabricated uniform single- atom M-N4 (M = Fe, Co) carbon catalysts with a production rate as high as 10 mg/min. The Co-N4/NC presented a bifunctional potential drop of ΔE = 0.79 V, outperforming the benchmark Pt/C-Ru/C catalyst (ΔE = 0.88 V) at the same catalyst loading. Theoretical calculations revealed that Co-N4 was the major active site with superior O2 adsorption-desorption mechanisms. In a practical Zn-air battery test, the air electrode coated with Co-N4/NC exhibited a specific capacity (762.8 mAh/g) and power density (101.62 mW/cm2), exceeding those of Pt/C- Ru/C (700.8 mAh/g and 89.16 mW/cm2, respectively) at the same catalyst loading. Moreover, for Co-N4/NC, the potential difference increased from 1.16 to 1.47 V after 100 charge-discharge cycles. The proposed innovative and scalable strategy was concluded to be well suited for the fabrication of single-atom-doped carbons as promising bifunctional oxygen evolution/reduction electrocatalysts for metal-air batteries.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Brodogradnja, Elektrotehnika, Kemijsko inženjerstvo, Strojarstvo



POVEZANOST RADA


Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb

Profili:

Avatar Url Nikola Vladimir (autor)

Citiraj ovu publikaciju

Chen, Kai; Kim, Seonghee; Je, Minyeong; Choi, Heechae; Shi, Zhicong; Vladimir, Nikola; Kim, Kwang Ho; Li, Oi Lun
Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries // Nano-Micro Letters, 13 (2021), 60, 20 doi:10.1007/s40820-020-00581-4 (međunarodna recenzija, članak, znanstveni)
Chen, K., Kim, S., Je, M., Choi, H., Shi, Z., Vladimir, N., Kim, K. & Li, O. (2021) Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries. Nano-Micro Letters, 13, 60, 20 doi:10.1007/s40820-020-00581-4.
@article{article, year = {2021}, pages = {20}, DOI = {10.1007/s40820-020-00581-4}, chapter = {60}, keywords = {Single-atom-doped M-N4/NC catalyst, Plasma engineering, ORR/OER bifunctional activity, DFT calculation, Rechargeable Zn-air battery}, journal = {Nano-Micro Letters}, doi = {10.1007/s40820-020-00581-4}, volume = {13}, issn = {2311-6706}, title = {Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries}, keyword = {Single-atom-doped M-N4/NC catalyst, Plasma engineering, ORR/OER bifunctional activity, DFT calculation, Rechargeable Zn-air battery}, chapternumber = {60} }
@article{article, year = {2021}, pages = {20}, DOI = {10.1007/s40820-020-00581-4}, chapter = {60}, keywords = {Single-atom-doped M-N4/NC catalyst, Plasma engineering, ORR/OER bifunctional activity, DFT calculation, Rechargeable Zn-air battery}, journal = {Nano-Micro Letters}, doi = {10.1007/s40820-020-00581-4}, volume = {13}, issn = {2311-6706}, title = {Ultrasonic plasma engineering toward facile synthesis of single-atom MN4/N-doped carbon (M=Fe, Co) as superior oxygen electrocatalyst in rechargeable zinc-air batteries}, keyword = {Single-atom-doped M-N4/NC catalyst, Plasma engineering, ORR/OER bifunctional activity, DFT calculation, Rechargeable Zn-air battery}, chapternumber = {60} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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