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 (2018) 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), 13: 16. pp. 112-109. ISSN 1985-5389

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.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
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 > QD Chemistry > Physical and theoretical chemistry > Electrolytes, electrolyte solutions
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: 13
Page Range: pp. 112-109
Keywords: Anodization, electrochemical, metal oxide, nanotubular, tantalum, Ta2O5
Date: December 2018
URI: https://ir.uitm.edu.my/id/eprint/63122
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