Efficient adsorption and reduction of Cr (VI) by Zr4+ cross-linked magnetic chitosan/polyaniline composite

C Xu, Y Xu, D Zhong, H Chang, J Mou, H Wang… - Journal of …, 2022 - Elsevier
In this work, Zr 4+ cross-linked magnetic chitosan/polyaniline (Fe 3 O 4@ CTS-Zr-PANI)
composite was synthesized for the first time and used to remove Cr (VI) from aqueous …

[HTML][HTML] Customized Ni-MgO-ZrO2 catalysts for the dry reforming of methane using coke oven gas: Optimizing the MgO content

BJ Kim, HR Park, YL Lee, SY Ahn, KJ Kim… - Journal of CO2 …, 2023 - Elsevier
Abstract Ni-ZrO 2 and Ni-MgO-ZrO 2 catalysts were prepared by the stepwise control of the
MgO content in the Ni-ZrO 2 catalyst to develop a customized catalyst for the dry reforming …

Polyolefin Catalyst Research: A Product‐Driven Industrial Perspective

M Atiqullah, HS Al‐Asiri - The Chemical Record, 2022 - Wiley Online Library
This account narrates polyolefin catalyst research at the Research Institute Interdisciplinary
Research Center for Refining & Advanced Chemicals (IRCRAC). We particularly address …

Supported Catalyst (nBuCp)2ZrCl2 on Nano/Micro Domains for High Performance Ethylene Polymerization

YP Moreno Ruiz, E Moncada… - …, 2023 - Wiley Online Library
Silica‐based supports known as structured‐mixed supports were evaluated in ethylene
polymerization. These supports exhibit local surface heterogeneity due to the in situ growth …

Tuning the electronic environment of zinc ions with a ligand for dendrite-free zinc deposition in an ionic liquid

Z Liu, G Li, T Cui, A Lahiri, A Borodin… - Physical Chemistry …, 2017 - pubs.rsc.org
In this work, we report on the influence of an organic ligand on the electrodeposition of Zn
from an ionic liquid (IL) electrolyte. Zinc oxide was first dissolved in a protic IL. By introducing …

Ethylene polymerization with catalyst systems based on supported metallocenes with varying steric hindrance

R Guimarães, FC Stedile, JHZ dos Santos - Journal of Molecular Catalysis …, 2003 - Elsevier
A series of metallocenes differing in the metal center (M= Zr, Ti, Hf), in the coordination
sphere (RCp, with R= H, Me, iBu, nBu; Indenyl) and the bridge (Et, Me2Si) were studied as …

MgCl2/TiCl4/AlEt3 catalytic system for olefin polymerisation: a XPS study

D Fregonese, A Glisenti, S Mortara, GA Rizzi… - Journal of Molecular …, 2002 - Elsevier
A variety of techniques have been applied for 40 years in order to characterise Ziegler–Natta
catalysts, however, few studies report the use of surface science technologies in an effort to …

Solid-State 91Zr NMR Spectroscopy Studies of Zirconocene Olefin Polymerization Catalyst Precursors

AJ Rossini, I Hung, SA Johnson… - Journal of the …, 2010 - ACS Publications
91Zr (I= 5/2) solid-state NMR (SSNMR) spectra of the zirconocene compounds, Cp2ZrCl2,
Cp* 2ZrCl2 (1), Cp2ZrBr2 (2),(Me3SiC5H4) 2ZrBr2 (3), O (Me2SiC5H4) 2ZrBr2 (4),(1, 3 …

Preparation of multifunctional supported metallocene catalyst using organic multifunctional modifier for synthesizing polyethylene/clay nanocomposites via in situ …

C Ren, X Du, L Ma, Y Wang, J Zheng, T Tang - Polymer, 2010 - Elsevier
A new type of multifunctional ammonium modifier with carbonyl group and vinyl group was
synthesized to prepare multifunctional montmorillonites (F-MMTs), which were used as …

Stereochemically controlled PMMA-exfoliated silicate nanocomposites using intergallery-anchored metallocenium cations

WR Mariott, EYX Chen - Journal of the American Chemical …, 2003 - ACS Publications
Representative C 2 v-, C 2-, and C s-symmetric metallocene complexes were effectively
anchored inside the silicate galleries via a non-cation-exchange approach involving …