Keywords: کاتالیزور Phillips; Catalyst calcination; Phillips catalyst; Catalyst activation; Polyethylene; Chromium catalyst; Ethylene polymerization; Polymerization catalyst; Commercial activation; HDPE;
مقالات ISI کاتالیزور Phillips (ترجمه نشده)
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Keywords: کاتالیزور Phillips; Chromium; Silica; Reduction; DFT; UV–vis; DRS; Vibrational frequencies; Phillips catalyst
Reinforcement of Cr/silica catalysts by secondary deposition of silicate oligomers
Keywords: کاتالیزور Phillips; Ethylene polymerization; Phillips catalyst; Chromium catalyst; Catalyst porosity; Long-chain branching; Cr/silica; Polyethylene; Catalyst reinforcement; Silicate oligomers;
Planar model system of the Phillips (Cr/SiO2) catalyst based on a well-defined thin silicate film
Keywords: کاتالیزور Phillips; Phillips catalyst; Model catalysts; Surface structures; Thin films; Infrared spectroscopy; Ethylene adsorption;
Computational insights into reduction of the Phillips CrOx/SiO2 catalyst by ethylene and CO
Keywords: کاتالیزور Phillips; Phillips catalyst; Chromium oxide; Silica; Reduction; Ethylene; Induction period; Carbon monoxide; Mechanism; DFT; Vibrational frequency;
Active sites formation and their transformations during ethylene polymerization by the Phillips CrOx/SiO2 catalyst
Keywords: کاتالیزور Phillips; Phillips catalyst; Chromium oxide; Silica; Surface; Ethylene polymerization; Active site; Defect site; Mechanism; DFT; Cluster model;
Pre-reduction of the Phillips CrVI/SiO2 catalyst by cyclohexene: A model for the induction period of ethylene polymerization
Keywords: کاتالیزور Phillips; Phillips catalyst; Chromium; Induction period; Ethylene polymerization; Heterogeneous catalysis;
Ethylene polymerization by Cr(III) salts on acidic carriers
Keywords: کاتالیزور Phillips; Ethylene polymerization; Polyethylene; Phillips catalyst; Chromium catalyst; Solid acids; Acidic support;
Effect of surface hydroxylation on the catalytic activity of a Cr(II)/SiO2 model system of Phillips catalyst
Keywords: کاتالیزور Phillips; Phillips catalyst; Cr-doped porous silica glass; Ethylene polymerization; UV–Vis spectroscopy; FT-IR spectroscopy; CO probe molecule; Molecular modeling; DFT calculations
Reprint of: Effect of Mo-modification over Phillips CrOx/SiO2 catalyst for ethylene polymerization
Keywords: کاتالیزور Phillips; Ethylene polymerization; Phillips catalyst; CrMo/Si catalyst; TREF;
Effect of Mo-modification over Phillips CrOx/SiO2 catalyst for ethylene polymerization
Keywords: کاتالیزور Phillips; Ethylene polymerization; Phillips catalyst; CrMo/Si catalyst; TREF;
The “comonomer effect” on chromium polymerization catalysts
Keywords: کاتالیزور Phillips; Comonomer effect; Ethylene polymerization; Chromium catalyst; Phillips catalyst; Polyethylene; Polymerization catalyst; Metallocene; Ziegler;
Cr-doped porous silica glass as a model material to describe Phillips catalyst properties
Keywords: کاتالیزور Phillips; Phillips catalyst; Cr-doped silica monoliths; Transmission spectroscopies; Ethylene polymerization
Reduction of Cr(VI) polymerization catalysts by non-olefinic hydrocarbons
Keywords: کاتالیزور Phillips; Phillips catalyst; Ethylene polymerization; HDPE; Polyethylene; Reduction; Chromium; Alkane oxidation
Spectroscopic and structural characterization of Cr(II)/SiO2 active site precursors in model Phillips polymerization catalysts
Keywords: کاتالیزور Phillips; Polymerization; Phillips catalyst; Chromyl chloride; Silica; X-ray absorption spectroscopy; ONIOM
Origin of broad molecular weight distribution of polyethylene produced by Phillips-type silica-supported chromium catalyst
Keywords: کاتالیزور Phillips; Phillips catalyst; Density functional theory; Molecular weight distribution; Polyethylene (PE)
Multinuclear solid-state NMR study of the coordinative nature of alkylaluminum cocatalyst on Phillips CrOx/SiO2 catalyst
Keywords: کاتالیزور Phillips; Phillips catalyst; Al–alkyl cocatalyst; Ethylene polymerization; Solid-state NMR
Experimental and theoretical studies on ethylene polymerization using SiO2-supported silyl chromate type catalysts prepared by a green method
Keywords: کاتالیزور Phillips; Silyl chromate S-2 catalyst; Phillips catalyst; Triphenylsilanol; Ethylene polymerization; Density functional theory (DFT)
Long-chain branching in PE from Cr/aluminophosphate catalysts
Keywords: کاتالیزور Phillips; Chromium catalyst; Polymerization catalyst; Phillips catalyst; Ethylene polymerization; Polyethylene; Long-chain branching; Short-chain branching; Cross-insertion; Inter-molecular mechanism; Intra-molecular mechanism
Surface science models of industrial catalysts
Keywords: کاتالیزور Phillips; Model catalyst; Supported catalyst; Polymerization catalysis; Electron microscopy; Anchored catalyst; Phillips catalyst;
Evidence for a chromasiloxane ring size effect in Phillips (Cr/SiO2) polymerization catalysts
Keywords: کاتالیزور Phillips; Silica; Chromyl chloride; Grafting; Phillips catalyst; Strained siloxane rings; XANES simulation
Influence of porosity on PE molecular weight from the Phillips Cr/silica catalyst
Keywords: کاتالیزور Phillips; Ethylene olymerization; Polyethylene; PE; Molecular weight; Porosity; Polymerization catalyst; Phillips catalyst; Cr/silica catalyst; Chromium polymerization catalyst
Turning a Cr-based heterogeneous ethylene polymerisation catalyst into a selective ethylene trimerisation catalyst
Keywords: کاتالیزور Phillips; Ethylene trimerisation; Ethylene polymerisation; Single-site heterogeneous catalysts; LLDPE; Phillips catalyst
Ethylene, propylene and ethylene oxide in situ polymerization on the Cr(II)/SiO2 system: A temperature- and pressure-dependent investigation
Keywords: کاتالیزور Phillips; Polymerization; in-situ FTIR spectroscopy; Phillips catalyst
Activation of Phillips Cr/silica catalysts: IV. Mobility of Cr(VI)
Keywords: کاتالیزور Phillips; Polyethylene; Ethylene polymerization; Phillips catalyst; Chromium catalyst; Polymerization catalyst; Thermal migration
DRIFTS and DRS studies of Phillips ethylene polymerization catalysts
Keywords: کاتالیزور Phillips; Phillips catalyst; Chromium-oxide catalyst; Ethylene polymerization; CrO3; Silica; DRS; DRIFTS
Novel SiO2-supported chromium catalyst bearing new organo-siloxane ligand for ethylene polymerization
Keywords: کاتالیزور Phillips; Phillips catalyst; Ethylene polymerization; Chiral organo-siloxane ligand; Bimodal molecular weight distribution; Short chain branches (SCBs)
Unique polymerization kinetics obtained from simultaneous interaction of Phillips Cr(VI)Ox/SiO2 catalyst with Al-alkyl cocatalyst and ethylene monomer
Keywords: کاتالیزور Phillips; Phillips catalyst; Al-alkyl cocatalyst; Ethylene polymerization; Polymerization kinetics; Short chain branches; Bimodal molecular weight distribution
The effect of temperature on ethylene polymerization over flat Phillips model catalysts
Keywords: کاتالیزور Phillips; Phillips catalyst; Ethylene polymerization; Morphology; Kinetics; Chromium oxide; Silica; Size exclusion chromatography; Long chain branching; Site starvation; Viscometry
In situ FTIR spectroscopy of key intermediates in the first stages of ethylene polymerization on the Cr/SiO2 Phillips catalyst: Solving the puzzle of the initiation mechanism?
Keywords: کاتالیزور Phillips; Phillips catalyst; Metallacycle; Initiation mechanism; Chromium; Ethylene polymerization; In situ spectroscopy
Tuning the structure, distribution and reactivity of polymerization centres of Cr(II)/SiO2 Phillips catalyst by controlled annealing
Keywords: کاتالیزور Phillips; Phillips catalyst; Ethylene polymerization; Turnover frequency; In situ IR; Activity;