Yunarti, Rika Tri Gu, Sangseo Choi, Jae-Wook Jae, Jungho Suh, Dong Jin Ha, Jeong-Myeong 2024-01-20T01:33:14Z 2024-01-20T01:33:14Z 2021-09-01 2017-05 2168-0485 https://pubs.kist.re.kr/handle/201004/122798 The oxidative coupling of methane (OCM) was performed using Na2WO4/Mn catalysts supported on Mg/Ti/Si mixed oxides. Na2WO4/Mn/Mg0.05Ti0.05Si0.90On exhibited a 23.1% C-2. yield at 800 degrees C, which is a 35% higher C-2 yield than that obtained using conventional Na2WO4/Mn/SiO2 in this study. The formation of Mg/Ti-doped a-cristobalite SiO2 was observed for supported Na2WO4/Mn catalysts, and their improved catalytic activity could be attributed to the suppressed incorporation of Na/W/Mn compounds into the alpha-cristobalite SiO2 structure and the existence of OCM-active Na/W/Mn compounds exposed on the support surface. X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, and O-2-temperature-programmed desorption were performed in an effort to understand the improved catalytic OCM activity of Mg/Ti-doped SiO2-supported Na2WO4/Mn catalysts. English American Chemical Society ANAEROBIC-DIGESTION C-2 HYDROCARBONS NATURAL-GAS MN/NA2WO4/SIO2 CONVERSION BIOGAS STATE PERFORMANCE TRANSITION OXYGEN Oxidative Coupling of Methane Using Mg/Ti-Doped SiO2-Supported Na2WO4/Mn Catalysts Article 10.1021/acssuschemeng.6b02914 1 ACS Sustainable Chemistry & Engineering, v.5, no.5, pp.3667 - 3674 ACS Sustainable Chemistry & Engineering 5 5 3667 3674 scie scopus 000400634900010 2-s2.0-85018422760 Chemistry, Multidisciplinary Green & Sustainable Science & Technology Engineering, Chemical Chemistry Science & Technology - Other Topics Engineering Article ANAEROBIC-DIGESTION C-2 HYDROCARBONS NATURAL-GAS MN/NA2WO4/SIO2 CONVERSION BIOGAS STATE PERFORMANCE TRANSITION OXYGEN Oxidative coupling of methane Mg/Ti/Si mixed oxide Catalyst Methane upgrading