Mechanism of nanotubular Ta₂O₅ via anodization in NH₄F/H₂SO₄/H₂O solution / Mahzaton Aqma Abu Talip … [et al.]

Abu Talip, Mahzaton Aqma and Abdul Rani, Rozina and Ab Kadir, Rosmalini and Mamat, Mohamad Hafiz and Abdul Khalid, Muhammad Farid and Mahmood, Mohamad Rusop and Zoolfakar, Ahmad Sabirin (2019) Mechanism of nanotubular Ta₂O₅ via anodization in NH₄F/H₂SO₄/H₂O solution / Mahzaton Aqma Abu Talip … [et al.]. Journal of Electrical and Electronic Systems Research (JEESR), 14. pp. 46-53. ISSN 1985-5389

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Abstract

The main subject of many studies in anodization of Ta2O5 is to investigate the role of electrolyte composition on nanostructure Ta2O5 formation. However, the simple and clear explanation on how electrolyte composition affects the mechanism of nanotubular formation is hardly to be found. In this paper, we provided organized and step by step discussion on how NH4F, H2O and H2SO4 influence the growth of nanotubular by performing the experiments with different concentration of NH4F, H2O and H2SO4. The electrochemical formation of nanotubular tantalum pentoxide (Ta2O5) was investigated in 50 ml ethylene glycol (EG), 0.5–3 wt% of NH4F, 0–6 vol% of H2O and 0–1 vol% of H2SO4. Depending on electrolyte concentration, Ta2O5 films exhibit different structural structures and features after anodization. The results were shown through FESEM, real images of samples and XRD analysis. By varying the concentration, it was possible to change the structures of Ta2O5. Finally, we demonstrated how electrochemical response during anodization, thus forming nanotubular Ta2O5.

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Item Type: Article
Creators:
Creators
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Abu Talip, Mahzaton Aqma
UNSPECIFIED
Abdul Rani, Rozina
UNSPECIFIED
Ab Kadir, Rosmalini
UNSPECIFIED
Mamat, Mohamad Hafiz
UNSPECIFIED
Abdul Khalid, Muhammad Farid
UNSPECIFIED
Mahmood, Mohamad Rusop
UNSPECIFIED
Zoolfakar, Ahmad Sabirin
UNSPECIFIED
Subjects: Q Science > QC Physics > Atomic physics. Constitution and properties of matter
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics
T Technology > TP Chemical technology > Nanoparticles
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Electrical Engineering
Journal or Publication Title: Journal of Electrical and Electronic Systems Research (JEESR)
UiTM Journal Collections: UiTM Journal > Journal of Electrical and Electronic Systems Research (JEESR)
ISSN: 1985-5389
Volume: 14
Page Range: pp. 46-53
Official URL: https://jeesr.uitm.edu.my
Item ID: 48770
Uncontrolled Keywords: electrochemical, metal oxide, nanotubular
URI: https://ir.uitm.edu.my/id/eprint/48770

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48770

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