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|Title: ||Hydrogen evolution involved electrodeposition of Cu-Ni alloys and dealloying for supercapacitor application|
|Authors: ||Lee, Sin Ching (李倩晴)|
|Department: ||Department of Physics and Materials Science|
|Issue Date: ||2016|
|Course: ||AP4217 Dissertation|
|Programme: ||Bachelor of Science (Honours) In Applied Physics|
|Supervisor: ||Dr. Li, Y. Y.|
|Citation: ||Lee, S. C. (2016). Hydrogen evolution involved electrodeposition of Cu-Ni alloys and dealloying for supercapacitor application (Outstanding Academic Papers by Students (OAPS)). Retrieved from City University of Hong Kong, CityU Institutional Repository.|
|Abstract: ||Previous research shows that porous nickels with closely packed tiny pores can be neither fabricated
by the method of electrochemical deposition nor the method of hydrogen bubble dynamic template.
Therefore, a combined method of electrodeposition and hydrogen evolution reaction is proposed
and which will be the main focus of this study.
This project is divided into three parts. The first part is the fabrication of porous nickel by the
combined method in different conditions. Second part is the fabrication of porous nickel with nickel
hydroxide by undergoing hydrothermal treatment. For the last part, samples were characterized by
SEM, XRD, CV and charge and discharge tests.
The results indicate that using this combined method can also fabricate porous nickels which have
high surface area. Also, because the nickel oxide is already formed in electrodeposition stage, this
method is convenient for making supercapacitors by just using one step. Last but not least, porous
nickel fabricated by this method has high specific capacitance and high retention. Therefore, this
method is potentially to be applied to large-scale fabrication of supercapacitors to be used in
|Appears in Collections:||OAPS - Dept. of Physics & Materials Science|
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