Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina
Link to publisher's homepage at http://www.vbripress.com/
Saved in:
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
VBRI press
2014
|
| Subjects: | |
| Online Access: | http://dspace.unimap.edu.my:80/dspace/handle/123456789/32766 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Universiti Malaysia Perlis |
| Language: | English |
| id |
my.unimap-32766 |
|---|---|
| record_format |
dspace |
| spelling |
my.unimap-327662014-03-14T09:13:20Z Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina Alaba Oladeji, Araoyinbo Azmi, Rahmat, Prof. Mohd Nazree, Derman, Dr. Khairel Rafezi, Ahmad, Dr. aoalaba@yahoo.com azmirahmat@unimap.edu.my nazree@unimap.edu.my rafezi@unimap.edu.my Electrochemical cell Gibbs free energy Nanoporous alumina Power regulator Temperature Link to publisher's homepage at http://www.vbripress.com/ The basic concept of Gibbs standard state free energy predicts a favorable condition for both room and high temperature fabrication of nanoporous alumina in phosphoric acid electrolyte. The anodization of aluminum foil in acidic electrolytes is made possible by the well known process parameters that have been studied over the years. These parameters i.e. voltage, current density, type of electrolyte etc have been very effective when anodizing aluminum at freezing temperatures. When the operating temperature is raised above the freezing temperature, additional process parameters would be required to make the pore formation possible. The fabrication of the aluminum foil was carried out using phosphoric acid as the electrolyte source. The electrolyte pH was adjusted to 1, 3 and 5 in order to simulate different anodizing conditions. A potential of 50 V from a dc power supply was applied across the electrochemical cell, while a power regulating device with different power rating was attached to the electrochemical cell to provide the operating system with additional parameters that could influence the surface structure of the alumina. The micrographs obtained show that the propagation and growth of the pores at both room and high temperatures was made possible by the power regulating device attached to the cell. 2014-03-14T09:13:20Z 2014-03-14T09:13:20Z 2013-12 Article Advanced Materials Letters, vol. 4(12), 2013, pages 899-904 0976-3961 http://amlett.com/volumes/issusenavigation/4/12/December http://dspace.unimap.edu.my:80/dspace/handle/123456789/32766 en VBRI press |
| institution |
Universiti Malaysia Perlis |
| building |
UniMAP Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Malaysia Perlis |
| content_source |
UniMAP Library Digital Repository |
| url_provider |
http://dspace.unimap.edu.my/ |
| language |
English |
| topic |
Electrochemical cell Gibbs free energy Nanoporous alumina Power regulator Temperature |
| spellingShingle |
Electrochemical cell Gibbs free energy Nanoporous alumina Power regulator Temperature Alaba Oladeji, Araoyinbo Azmi, Rahmat, Prof. Mohd Nazree, Derman, Dr. Khairel Rafezi, Ahmad, Dr. Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| description |
Link to publisher's homepage at http://www.vbripress.com/ |
| author2 |
aoalaba@yahoo.com |
| author_facet |
aoalaba@yahoo.com Alaba Oladeji, Araoyinbo Azmi, Rahmat, Prof. Mohd Nazree, Derman, Dr. Khairel Rafezi, Ahmad, Dr. |
| format |
Article |
| author |
Alaba Oladeji, Araoyinbo Azmi, Rahmat, Prof. Mohd Nazree, Derman, Dr. Khairel Rafezi, Ahmad, Dr. |
| author_sort |
Alaba Oladeji, Araoyinbo |
| title |
Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| title_short |
Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| title_full |
Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| title_fullStr |
Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| title_full_unstemmed |
Using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| title_sort |
using gibbs standard state free energy and a power regulating device to predict and control the fabrication of nanoporous alumina |
| publisher |
VBRI press |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/32766 |
| _version_ |
1643796979166216192 |