Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Qing Xu"'
Autor:
Zheng Peng, Zheng Aiguo, Dong Xiao, Mingfeng Li, Li Huifeng, Bo-Qing Xu, Guofu Xia, Zheng Renyang
Publikováno v:
Catalysis Today. 316:162-170
Pt-Co/SiO2 and Pt-Ir-Co/SiO2 catalysts were prepared via galvanic replacement (GR) and employed for the hydrogenolytic ring-opening of methylcyclopentane (MCP). Selective deposition of the noble metals at the less expensive Co nanoparticle (NP) surfa
Publikováno v:
Catalysis Today. 295:110-118
Two model reactions, namely the Bronsted-acidity-specific skeletal isomerization of 3,3-dimethylbut-1-ene for evaluating the Bronsted acidity and dehydration of 2-propanol for the overall acidity at the catalyst surface, were employed in this work to
Publikováno v:
Catalysis Today. 234:215-222
Tungsten oxides dispersed on Al 2 O 3 , ZrO 2 , and SiO 2 supports were investigated for catalytic dehydration of glycerol (GL) to form acrolein (AC) in the gas phase at 315 °C with aqueous GL (GL concentration: 36.2 wt% or 10 mol%, molar GL/H 2 O =
Publikováno v:
Catalysis Today. 234:237-244
Gas-phase dehydration of aqueous propane polyols including glycerol, 1,2- and 1,3-propanediols was investigated over various solid catalysts with a wide range of acid–base properties. Fairly high selectivity (40–75 mol%) for propanal formation fr
Publikováno v:
Catalysis Today. 158:432-438
The NOx storage and reduction (NSR) performance of low platinum (0.5 wt%) 0.5Pt–CoOx–15BaO/Al2O3 catalysts with varied Co loadings and calcination temperatures was studied to investigate the promotional effect of CoOx on the NSR catalysis. The NS
Publikováno v:
Catalysis Today. 158:310-316
Acidic binary metal oxide catalysts, including SnO2–TiO2, SnO2–ZrO2, TiO2–Al2O3, SiO2–TiO2, ZrO2–SiO2, ZnO–TiO2 and TiO2–ZrO2, were prepared and employed to catalyze the dehydration reaction of glycerol (GL) at 315 °C. Correlation of t
Publikováno v:
Catalysis Today. 158:415-422
Catalytic combustion reactions of carbon monoxide and formaldehyde are compared over Au/ZrO2 catalysts with varied Au loadings (0.25–4 wt%) and calcination temperatures (110–450 °C). The combustion of CO shows a distinct induction period over mo
Publikováno v:
Catalysis Today. 153:103-110
The characteristics of low platinum Pt–BaO catalysts for NOx storage and reduction (NSR) were studied over three series of samples that have similar barium loadings (ca. 15 wt% Ba), namely, Pt–BaO/Al2O3, CoOx promoted Pt–BaO/Al2O3 and Pt–BaO/
Publikováno v:
Catalysis Today. 122:330-337
This work investigates the effects of Au3+/Au0 ratio or distribution of gold oxidation states in Au/ZrO2 catalysts of different gold loadings (0.01–0.76% Au) on CO oxidation and 1,3-butadiene hydrogenation by regulating the temperature of catalyst
Publikováno v:
Catalysis Today. 98:601-605
Nanocomposite Ni/ZrO2-AN catalyst consisting of comparably sized Ni metal and ZrO2 nanoparticles is studied in comparison with zirconia- and alumina-supported Ni catalysts (Ni/ZrO2-CP and commercial Ni/Al2O3-C) for steam reforming of methane (SRM) an