| Title |
Mechanical,structural and catalytic properties of the Co-Al-O coatings |
| Another Title |
Mechaninės, struktūrinės ir katalizinės Co-Al-O dangų savybės. |
| Authors |
Babilius, Kazys ; Babilius, Artūras |
| Full Text |
|
| Is Part of |
Materials science = Medžiagotyra.. Kaunas : Technologija. 2010, vol. 16, no. 1, p. 40-46.. ISSN 1392-1320. eISSN 2029-7289 |
| Keywords [eng] |
Nanocrystalline ; Coatings ; Co-Al-O ; γ -Al2O3 ; Adhesion ; Resistance to acids ; X-ray diffraction ; Crystallite size ; Morphology ; Elemental composition ; NOx and CO catalysts |
| Abstract [eng] |
Co-Al-O type nanocrystalline catalytic coatings of 30 μm thickness were formed by the activated thermo-chemical condensate deposition (AT-CCD) method on the strip steel 0C-404 of 40 μm thickness. After thermal treatment, the following investigations of the system “coating-substrate” were made: adhesion, resistance to acids (H2SO4, HNO3 and H3PO4 – concentration 60 %) and alkali NaOH. Phase composition, size of crystallites, morphology and elemental composition of the surface were analysed. Given catalyst (large block) was assessed at temperature up to 600 °C, high gas flows Qgas = 2.75 l/min and small oxygen amount O2 = 0.15 %. The catalyst starts to operate at T = 150 °C – 200 °C. Maximum conversion for CO = 80 % and NOx = 100 % were obtained at 450 °C. Given catalyst (small block) was assessed at temperatures up to 275 °C, low gas flows Qgas = 0.50 l/min and large oxygen amount O2 = 20.0 %. The catalyst (CO oxidation) started to operate at T = 25 °C, maximum conversion (100 %) was obtained at 240 °C. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2010 |
| CC license |
|
