dc.contributor.author |
Amri, Amun |
|
dc.date.accessioned |
2016-02-25T01:54:52Z |
|
dc.date.available |
2016-02-25T01:54:52Z |
|
dc.date.issued |
2016-02-25 |
|
dc.identifier.isbn |
978-602-71398-0-0 |
|
dc.identifier.other |
wahyu sari yeni |
|
dc.identifier.uri |
http://repository.unri.ac.id/xmlui/handle/123456789/7935 |
|
dc.description.abstract |
Cobalt-based metal oxide thin film coatings have been successfully deposited on
highly reflective aluminum substrates via sol–gel dip-coating process. The coating’s surface
composition, surface topography and morphology as well their optical properties were
probed using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM),
scanning electron microscopy (SEM), and UV-Vis-Nir spectrophotometry, respectively.
The XPS spectra indicated that the coatings contained the mixed cobalt based metal oxides.
Topographical and morphological investigations showed that the copper-cobalt oxide
coating had the roughest surface with contour in range of 120 nm compared with other two
coatings. The copper cobalt oxide coatings also exihibed a distinct optical property and
behaved as solar selective absorber. Variation in withdrawal rate and dip-drying cycles
confirmed that the copper cobalt thin film coating had a very tuneable absorptance value
with the highest absorptance (α=80.2%) was achieved when the coating was created using
six times dip-drying cycles with the withdrawal rate of 120 mm/min. Simplicity and safe in
the synthesis process as well as the optical features of the copper–cobalt coatings imply
good prospects for future application as a solar absorber coating material for photothermal
collector application, though they still need further engineering to improve optimal
performance. |
en_US |
dc.description.provenance |
Submitted by wahyu sari yeni (ayoe32@ymail.com) on 2016-02-25T01:54:52Z
No. of bitstreams: 3
cover RCCHE 2014.pdf: 961308 bytes, checksum: 44ad0a18ed1af92c770b5e18c6669f90 (MD5)
Daftar Isi RCCHE 2014.pdf: 3017368 bytes, checksum: eabf365da9e72fa15c7729a567b75578 (MD5)
Sol-Gel Process in the Synthesis of Cobalt Based Metal Oxide.pdf: 6256754 bytes, checksum: b0945157b0dd25b9653ecf02a7c4c980 (MD5) |
en |
dc.description.provenance |
Made available in DSpace on 2016-02-25T01:54:52Z (GMT). No. of bitstreams: 3
cover RCCHE 2014.pdf: 961308 bytes, checksum: 44ad0a18ed1af92c770b5e18c6669f90 (MD5)
Daftar Isi RCCHE 2014.pdf: 3017368 bytes, checksum: eabf365da9e72fa15c7729a567b75578 (MD5)
Sol-Gel Process in the Synthesis of Cobalt Based Metal Oxide.pdf: 6256754 bytes, checksum: b0945157b0dd25b9653ecf02a7c4c980 (MD5) |
en |
dc.description.sponsorship |
Proceeding the Regional Conference on Chemical Engineering 2014
Yogyakarta, December 2-3, 2014 |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
cobalt based metal oxide |
en_US |
dc.subject |
dip-coating |
en_US |
dc.subject |
solar selective absorber |
en_US |
dc.subject |
sol-gel |
en_US |
dc.subject |
surface |
en_US |
dc.title |
Sol-Gel Process in the Synthesis of Cobalt Based Metal Oxides as Solar Selective Absorber Thin Film Coatings for Photothermal Collector |
en_US |
dc.type |
UR-Scientific Work Lecturer |
en_US |