Electrodeposition of tin using tin(ii) methanesulfonate from mixture of ionic liquid and methane sulfonic acid / Yang Kok Kee
The electrodeposition of tin from Tin(II) Methane Sulfonate (MSA) with varying concentration in air and water stable 1-butyl-1-methyl-pyrrolidinium trifluoromethanesulfonate, (BMPOTF) ionic liquid at room temperature was studied. Cyclic Voltammetry served to characterize the electrochemical behav...
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| Format: | Thesis |
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2010
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| Subjects: | |
| Online Access: | http://studentsrepo.um.edu.my/4996/ http://studentsrepo.um.edu.my/4996/1/Part_1_Theses_Cover__Front_Page.pdf http://studentsrepo.um.edu.my/4996/2/Part_2_Original_literary_work_declaration.pdf http://studentsrepo.um.edu.my/4996/3/Part_3_Abstract_and_Table_of_Contents.pdf http://studentsrepo.um.edu.my/4996/4/Part_4_Theses_Contents.pdf |
| Summary: | The electrodeposition of tin from Tin(II) Methane Sulfonate (MSA) with varying
concentration in air and water stable 1-butyl-1-methyl-pyrrolidinium trifluoromethanesulfonate,
(BMPOTF) ionic liquid at room temperature was studied. Cyclic
Voltammetry served to characterize the electrochemical behavior of tin reduction and
oxidation. The diffusion coefficient of stannous ions in the mixture of BMPOTF ionic
liquid and MSA based electrolyte obtained via Randles-Sevcik and Cottrell equation
was 2 × 10-7 cm2/s. Electroplating on copper panel was conducted under different
current densities to determine BMPOTF based tin plating solution current efficiency.
Mixture of BMPOTF and MSA based tin plating solution gave current efficiency as
high as 99.9%. The deposit morphology of the mixture BMPOTF and MSA based tin
coated substrates was observed by using EDX, SEM and AFM. A dense, fine and
polygonal grain structure was obtained. BMPOTF based tin plated substrates have
shown excellent solderability which was comparable to MSA based coated material in
wetting balance test. |
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