access icon free Fabrication of antimony doped tin oxide nanopowders as an advanced electrode material for supercapacitors

© The Institution of Engineering and Technology
Received 26/05/2018, Accepted 13/11/2018, Revised 29/10/2018, Published 06/03/2019

The antimony doped tin oxide (Sb-SnO2, ATO) nanopowders have been synthesised via a facile co-precipitation method using absolute methanol as a solvent at room temperature and followed by a calcination process. The calcination process of fabricated ATO from precursor is investigated by thermogravimetric analysis (TGA). The crystallite phase and morphological structure of ATO powder are examined by the X-ray diffraction and scanning electron microscopy. ATO material consisting of numerous sphere-like nanoparticles with the diameter of 40–60 nm were further measured by electrochemical workstation, exhibiting the ATO nanostructure is an high-conductivity electrode material with highly reversible features, good specific capacitance and good capacitance retention. The specific capacitance of the ATO electrode material shows 158.2 F g−1 at current density of 1 A g−1, and specific capacitance retention remained 72% when the current density increases up to 10 A g−1, indicating the ATO nanostructures materials can be considered as a promising electrode material for supercapacitors.

Inspec keywords: X-ray diffraction; supercapacitors; thermal analysis; antimony; nanoparticles; tin compounds; calcination; current density; electrochemical electrodes; crystallites; capacitance; electrochemical analysis; crystal morphology; crystal growth from solution; nanofabrication; precipitation (physical chemistry); scanning electron microscopy

Other keywords: SnO2:Sb; scanning electron microscopy; electrochemical workstation; TGA; sphere-like nanoparticles; thermogravimetric analysis; supercapacitors; specific capacitance retention; calcination process; temperature 293 K to 298 K; antimony doped tin oxide nanopowders; current density; X-ray diffraction; crystallite phase; high-conductivity electrode material; morphological structure; absolute methanol solvent; coprecipitation method

Subjects: Crystal growth; Storage in electrical energy; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Microstructure; Electrochemistry and electrophoresis; Electrochemical analytical methods; Capacitors; Electrochemical conversion and storage; Nanofabrication using crystal growth techniques; Other heat and thermomechanical treatments; Crystal growth from solution

References

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    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
    22. 22)
    23. 23)
    24. 24)
    25. 25)
    26. 26)
    27. 27)
    28. 28)
    29. 29)
    30. 30)
    31. 31)
    32. 32)
    33. 33)
    34. 34)
    35. 35)
    36. 36)
    37. 37)
    38. 38)
http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2018.5212
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