Results 21 to 30 of about 758,902 (306)
Identification of single-site gold catalysis in acetylene hydrochlorination [PDF]
, 2017 There remains considerable debate over the active form of gold under operating conditions of a recently validated gold catalyst for acetylene hydrochlorination.
Catlow, C. Richard A. +14 more
core +4 more sources
The effect of Nb2O5 and ZrO2 additions on the behaviour of Li/MgO and Li/Na/MgO catalysts for the oxidative coupling of methane [PDF]
, 1991 Incorporation of Nb2O5 or ZrO2 into both Li/MgO and Li/Na/MgO systems produced ternary and quaternary catalysts, respectively, capable of attaining optimal C2 yields and selectivities at lower temperatures relative to the unpromoted materials. The degree
Korf, S.J. +4 more
core +10 more sources
Scientific Reports, 2022 In this study, a heterogeneous nanocatalyst is presented that is capable to efficiently catalyze the synthetic reactions of amide bond formation between the amino acids. This nanocatalyst which is named Fe3O4@SiO2/TABHA (TABHA stands for thio-aza-bicyclo-
Reza Taheri-Ledari +4 more
doaj +1 more source
Pyrolysis-catalytic reforming/gasification of waste tires for production of carbon nanotubes and hydrogen [PDF]
, 2015 The production of high-value carbon nanotubes and hydrogen from the two-stage pyrolysis catalytic-steam reforming/gasification of waste tires have been investigated. The catalysts used were Co/Al₂ O₃ , Cu/Al₂ O₃ , Fe/Al₂ O₃ and Ni/Al₂ O₃ .
Nahil, Mohamad A. +3 more
core +3 more sources
Scientific Reports, 2023 In this research, mesoporous carbon (MC) with high efficiency (0.65 g yield from 1.0 g MCM-41 and 1.25 g sucrose) was successfully prepared by adding carbon precursor (sucrose) in a single step with ultrasonic waves, which reduces time and energy cost ...
Hossein Ghafuri +4 more
doaj +1 more source
Polyoxometalate-intercalated layered double hydroxides as efficient and recyclable bi-functional catalysts for cascade reactions [PDF]
, 2016 The polyoxometalate (POM) intercalated-layered double hydroxides (LDHs) have been widely used as heterogeneous catalysts. However, the application of POM-LDHs as bi-functional catalysts for cascade reaction has seldom been studied comparing with the ...
Angelescu +41 more
core +1 more source
Factors affecting the extent of branching in fischertropsch synthesis products with iron-based catalysts [PDF]
, 1989 Branched products are mainly formed during secondary isomerization reactions, and not in the main synthesis reaction itself. The extent of branching is a function of the catalyst formulation. High acidity and a low hydrogenation strength of the catalyst (
Snel, R.
core +2 more sources
Scientific Reports, 2022 The tubular magnetic agar supported ZnS/CuFe2O4 nanocomposite was fabricated via a simple procedure. Next, various properties of this nanocomposite were studied by employing multiple characterization techniques including FT-IR, EDX, SEM, TEM,VSM, XRD ...
Fereshte Hassanzadeh-Afruzi +4 more
doaj +1 more source
Scientific Reports, 2021 In this study, a novel mesoporous nanocomposite was fabricated in several steps. In this regard, SBA-15 was prepared by the hydrothermal method, next it was magnetized by in-situ preparation of Fe3O4 MNPs.
Fereshte Hassanzadeh-Afruzi +4 more
doaj +1 more source
Electro-oxidation of Ethanol on Carbon Supported PtSn and PtSnNi Catalysts [PDF]
, 2016 Even though platinum is known as an active electro-catalyst for ethanol oxidation at low temperatures (< 100 oC), choosing the electrode material for ethanol electro-oxidation is a crucial issue.
Hidayati, Nur, Scott, Keith
core +2 more sources