Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Ivan V, Kozhevnikov"'
Publikováno v:
Materials, Vol 17, Iss 8, p 1803 (2024)
In recent years, due to the rapid growth of mankind’s demand for energy, harmful gases (SOx) produced by the combustion of sulfur-containing compounds in fuel oil have caused serious problems to the ecological environment and human health. Therefor
Externí odkaz:
https://doaj.org/article/2d5f7d470db04021b42b48fc5fd34d41
Publikováno v:
Catalysis Communications, Vol 180, Iss , Pp 106710- (2023)
Keggin-type heteropoly acids (HPAs) have strong Brønsted acidity and are widely used as acid catalysts. The aim of this work is the systematic characterisation of the acid strength of HPA catalysts comprising H3PW12O40 and H4SiW12O40 supported on Si
Externí odkaz:
https://doaj.org/article/5fbc8aaccb43480e956407ab6a74367c
Publikováno v:
Catalysts, Vol 14, Iss 1, p 51 (2024)
Dehydration of i-PrOH is used in academic research as a test reaction to probe the acid properties of solid acid catalysts. Also, it has practical importance for the utilization of surplus acetone produced by the Hock process for the combined manufac
Externí odkaz:
https://doaj.org/article/d6d959865ca64495a62cacf68a22a90d
Publikováno v:
ACS Omega, Vol 6, Iss 13, Pp 9310-9318 (2021)
Externí odkaz:
https://doaj.org/article/aef72733aa724d2f8592328951323926
Publikováno v:
Molecules, Vol 28, Iss 6, p 2539 (2023)
Amphiphilic hybrid catalysts were prepared by modifying [SMo12O40]2− with tetrabutylammonium bromide (TBAB), 1-butyl-3-methylimidazole bromide (BMIMBr) and octadecyl trimethyl ammonium bromide (ODAB), respectively. The prepared catalysts were chara
Externí odkaz:
https://doaj.org/article/1d73c6992d4d4df0a35ed809ee736f75
Publikováno v:
Molecules, Vol 27, Iss 22, p 7889 (2022)
For ultra-deep desulfurization of diesel fuel, this study applied the ultrasound-assisted catalytic ozonation process to the dibenzothiophene (DBT) removal process with four Keggin-type heteropolyacids (HPA) as catalysts and acetonitrile as extractan
Externí odkaz:
https://doaj.org/article/3ed7944a9943437882fb54010545bae1
Dehydroisomerisation of α-Pinene and Limonene to p-Cymene over Silica-Supported ZnO in the Gas Phase
Publikováno v:
Catalysts, Vol 11, Iss 10, p 1245 (2021)
Silica-supported zinc oxide possessing acid and dehydrogenation functions is an efficient, noble-metal-free bifunctional catalyst for the environment-friendly synthesis of p-Cymene from renewable monoterpene feedstock by gas-phase dehydroisomerisatio
Externí odkaz:
https://doaj.org/article/950c487eae384819a6334c9fb3bcca28
Publikováno v:
Catalysts, Vol 11, Iss 8, p 988 (2021)
Aerobic oxidative desulfurization (ODS) of model liquid fuel (dodecane spiked with dibenzothiophene (DBT)) was carried out in the presence of bulk and supported Keggin-type heteropoly acids H3+nPMo12-nVnO40 (HPA-n, n = 0–3) as heterogeneous catalys
Externí odkaz:
https://doaj.org/article/de50f30c09db435387e9b931cc513553
Publikováno v:
RSC Advances. 12:2287-2291
Addition of gold to the Pt–CsPW catalyst has an enhancing effect on the HDO of DMTHF, with a twofold increase of turnover rate at Pt sites.
Autor:
Elena F. Kozhevnikova, Rafaela Ferreira Cotta, Kelly A. da Silva Rocha, Elena V. Gusevskaya, Ivan V. Kozhevnikov, Rafael A. Martins
Publikováno v:
Catalysis Today. 381:254-260
Acidic cesium salt of tungstophosphoric heteropoly acid, Cs2.5H0.5PW12O40 (CsPW), is an excellent solid acid catalyst for the reaction of phenylacetaldehyde with biorenewable monoterpenic alkenes: limonene, α-terpineol, α-pinene and β-pinene. Simu