Abstract
Without the use of a template, sub-micron scaled cobalt-aluminum (Co-Al) net (mesh) sheets can be obtained via a double-potential step electrodeposition method from a Lewis acidic aluminum chloride/trimethylamine hydrochloride (AlCl3-TMHC) room temperature ionic liquid containing cobalt chloride (CoCl2). During the electrodeposition, the electrode potential was repeatedly stepped between a more negative potential E1 for a time period of t1 and a less negative potential E2 for a time period of t2. The step potentials and step durations controlled the growth of the Co-Al sheet, and therefore, the physical dimensions of the net-like Co-Al. The electrodeposited Co-Al nets were characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). However, due to the high sensitivity of aluminum and cobalt toward oxygen, the electrodeposited Co-Al micro nets quickly turned into the corresponding metal oxides when exposed to the air.
| Original language | English |
|---|---|
| Pages (from-to) | D716-D721 |
| Journal | Journal of the Electrochemical Society |
| Volume | 165 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Electrochemistry
- Materials Chemistry
Cite this
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Template-free electrodeposition of net-like Co-Al/oxide structures from a Lewis acidic chloroaluminate room temperature ionic liquid using a potential step method. / Fong, Jing Ding; Chen, Po Yu; Sun, I-Wen.
In: Journal of the Electrochemical Society, Vol. 165, No. 14, 01.01.2018, p. D716-D721.Research output: Contribution to journal › Article
TY - JOUR
T1 - Template-free electrodeposition of net-like Co-Al/oxide structures from a Lewis acidic chloroaluminate room temperature ionic liquid using a potential step method
AU - Fong, Jing Ding
AU - Chen, Po Yu
AU - Sun, I-Wen
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Without the use of a template, sub-micron scaled cobalt-aluminum (Co-Al) net (mesh) sheets can be obtained via a double-potential step electrodeposition method from a Lewis acidic aluminum chloride/trimethylamine hydrochloride (AlCl3-TMHC) room temperature ionic liquid containing cobalt chloride (CoCl2). During the electrodeposition, the electrode potential was repeatedly stepped between a more negative potential E1 for a time period of t1 and a less negative potential E2 for a time period of t2. The step potentials and step durations controlled the growth of the Co-Al sheet, and therefore, the physical dimensions of the net-like Co-Al. The electrodeposited Co-Al nets were characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). However, due to the high sensitivity of aluminum and cobalt toward oxygen, the electrodeposited Co-Al micro nets quickly turned into the corresponding metal oxides when exposed to the air.
AB - Without the use of a template, sub-micron scaled cobalt-aluminum (Co-Al) net (mesh) sheets can be obtained via a double-potential step electrodeposition method from a Lewis acidic aluminum chloride/trimethylamine hydrochloride (AlCl3-TMHC) room temperature ionic liquid containing cobalt chloride (CoCl2). During the electrodeposition, the electrode potential was repeatedly stepped between a more negative potential E1 for a time period of t1 and a less negative potential E2 for a time period of t2. The step potentials and step durations controlled the growth of the Co-Al sheet, and therefore, the physical dimensions of the net-like Co-Al. The electrodeposited Co-Al nets were characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM). However, due to the high sensitivity of aluminum and cobalt toward oxygen, the electrodeposited Co-Al micro nets quickly turned into the corresponding metal oxides when exposed to the air.
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U2 - 10.1149/2.0631814jes
DO - 10.1149/2.0631814jes
M3 - Article
AN - SCOPUS:85067617114
VL - 165
SP - D716-D721
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 14
ER -