All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Enhancement of catalytic activity of Au/TiO2 by thermal and plasma treatment for CO oxidation and preferential oxidation


10th International Conference on Emerging Materials and Nanotechnology

July 27-29, 2017 Vancouver, Canada

Asif Mahmood and Waheed A Al Masry

King Saud University, KSA

Posters & Accepted Abstracts: Res. Rev. J Mat. Sci

DOI: 10.4172/2321-6212-C1-003

Abstract

A significant enhancement in the catalytic activity of Au/TiO2 in CO oxidation and preferential oxidation reaction by creating the active sites on the catalyst surface by thermal treatment as well as by producing small gold particles by plasma treatment has been studied. Au/TiO2 catalyst (Au (1 wt.%) supported on TiO2) was prepared by conventional depositionprecipitation method with NaOH (DP NaOH) followed by washing, drying and calcination in air at 400oC for 4h. Thermal treatment of Au/TiO2 was carried out at 450oC under 0.05 mTorr. A small amount of Au/TiO2 catalyst was taken from the untreated and thermally treated Au/TiO2 and both kinds of catalysts were treated with plasma sputtering at room temperature. The activity of the catalysts has been examined in the reaction of CO oxidation and preferential oxidation (PROX) at 25-250oC. Thermally treated Au/TiO2 showed better catalytic activity as compared to the untreated catalyst. There is also an additional enhancement in the catalytic activity due to plasma sputtering on the both kinds of catalysts. Thermally treated Au/TiO2 followed by plasma sputtering Au/TiO2 showed higher conversion rates for CO oxidation reaction compared with untreated, thermally treated and plasma sputtered Au/TiO2 catalysts. It may be concluded that the enhancement of catalytic activity of thermally treated Au/TiO2 followed by plasma sputtering owing to the generation of active sites such as oxygen vacancies/ defects in TiO2 support using thermal treatment as well as by producing small gold particles using plasma treatment.

https://pmasites.com/https://casinositeleriniz.com/https://fbhesq.com/
Spanishenglish.com spanishenglish.com helps to translate Spanish to English and English to Spanish for free.
Turkceingilizce.gen.tr kullanarak 100'den fazla dil ciftinde hemen ceviriler yapabilirsiniz.ingilizce turkce ceviri turkceingilizce.gen.tr

freetranslations.org/english-to-spanish-translation.html helps to translate English to Spanish to English for free.
ingilizceturkce.gen.tr ingilizce turkce ceviri, turkce ingilizce ceviri, ingilizce turkce cumle ceviri, ingililizceyi turkceye ceviri ve turkceyi ingilizceye ceviri gibi tum dillerde dogru ceviri hizmetleri sunuyor.
Turkceingilizce.gen.tr kullanarak 100'den fazla dil ciftinde hemen ceviriler yapabilirsiniz.ingilizce turkce ceviri turkceingilizce.gen.tr

https://babesoflondon.com/