Operando spectroscopies and heterogeneous olefin polymerization catalysis: A rare marriage with a lot of potential beyond usual understanding
This short review summarizes the main results achieved in the field of operando
spectroscopies applied to heterogeneous catalysts for olefin polymerization. Following a …
spectroscopies applied to heterogeneous catalysts for olefin polymerization. Following a …
Visualizing the Structure, Composition and Activity of Single Catalyst Particles for Olefin Polymerization and Polyolefin Decomposition
The structural and morphological characterization of individual catalyst particles for olefin
polymerization, as well as for the reverse process of polyolefin decomposition, can provide …
polymerization, as well as for the reverse process of polyolefin decomposition, can provide …
Controlling polyethylene molecular weights and distributions using chromium complexes supported by SNN-tridentate ligands
D Wang, S Zhou, Y Liu, X Kang, S Liu, Z Li… - …, 2022 - ACS Publications
The diverse properties and applications of polyethylenes depend on their molecular
weights, molecular weight distributions, and chain topology. Considering the importance of …
weights, molecular weight distributions, and chain topology. Considering the importance of …
Computational Insights into the Multisite Nature of the Phillips CrOx/SiO2 Catalyst for Ethylene Polymerization: The Perspective of Chromasiloxane Ring Size and F …
C Huang, Z Liu, B Liu, M Terano, Y Jin - ACS Catalysis, 2022 - ACS Publications
The famous Phillips CrO x/SiO2 catalyst is characterized by its multisite nature and the
resulting broad molecular weight distribution (MWD) of its polyethylene (PE) products …
resulting broad molecular weight distribution (MWD) of its polyethylene (PE) products …
Comparison of support effects on phillips and metallocene catalysts
Q Yang, MP McDaniel - Catalysts, 2021 - mdpi.com
Both metallocene and Phillips chromium catalysts are used in the commercial manufacture
of polyethylene. Unlike most other commercial metallocene systems, the Chevron Phillips …
of polyethylene. Unlike most other commercial metallocene systems, the Chevron Phillips …
Effects of diethylaluminum ethoxide pre‐reduction and chromium loading over bistriphenylsilyl chromate/silica for ethylene polymerization
X Xue, Y Yang, Y Gao, J Yi, B Liu… - The Canadian Journal of …, 2023 - Wiley Online Library
Abstract Bistriphenylsilyl chromate (BC)/silica (S‐2 catalyst) is a commercially used high‐
density polyethylene (HDPE) catalyst with great importance. In this work, the catalytic …
density polyethylene (HDPE) catalyst with great importance. In this work, the catalytic …
Mechanistic Insights of Ethylene Polymerization on Phillips Chromium Catalysts
I Nifant'ev, P Komarov, G Sadrtdinova, V Safronov… - Polymers, 2024 - mdpi.com
Silica-supported chromium oxide catalysts, also named Phillips chromium catalysts (PCCs),
provide more than half of the world's production of high-and medium-density polyethylenes …
provide more than half of the world's production of high-and medium-density polyethylenes …
Electronic interaction between Cr3+ ions in chromia-alumina catalysts for light alkane dehydrogenation
GE Bekmukhamedov, VI Morozov, RR Tuktarov… - Journal of Physics and …, 2022 - Elsevier
In this work chromia-alumina catalysts have been studied by the electron paramagnetic
resonance (EPR) spectroscopy in the temperature range-120–200° C. It was observed, that …
resonance (EPR) spectroscopy in the temperature range-120–200° C. It was observed, that …