Track topics on Twitter Track topics that are important to you
The selective and efficient removal of oxygenated groups from lignin-derived phenols is a critical challenge to utilize lignin as a source for renewable aromatic chemicals. This report describes that surface modification of a zeolite-supported Pt catalyst using ionic liquids (ILs) remarkably increases selectivity for the hydrodeoxygenation (HDO) of phenols into arenes under mild reaction conditions using atmospheric pressure H₂. Unmodified Pt/H-ZSM-5 converts phenols into aliphatic species as the major products along with a slight amount of arenes (10% selectivity). In contrast, the catalyst modified with an IL, 1-butyl-3-methylimidazolium triflate, keeps up to 76% selectivity for arenes even at a nearly complete conversion of phenols. The IL on the surface of Pt catalyst may offer the adsorption of phenols in an edge-to-face manner onto the surface, thus accelerating the HDO without the ring hydrogenation.
This article was published in the following journal.
Name: Chemistry (Weinheim an der Bergstrasse, Germany)
Ionic liquids provide challenges and opportunities for sustainable industrial developments. However, the toxic impacts of ionic liquids reported by many researchers cannot be overlooked. Therefore, in...
In the present work, three hydrophilic ionic liquids based on the combination between imidazolium cations attached with ethylene glycol polymers of various lengths and hexafluorophosphate anion were d...
Water scarcity motivated the scientific researcher to develop efficient technologies for the wastewater treatment for its reuse. Ionic liquids have been applied to many industrial and analytical separ...
In the last years, ionic liquids have been used as substitutes to common solvents since they combine good solubility properties with small vapor pressures. Herein, the Diels-Alder reactions of cyclope...
Immobilization of polyoxometalates (POMs) plays significant roles in their industrial applications. In this work, POM-supported catalyst has been developed with cellulose nanocrystal (CNC) as a sustai...
To test the modification of the implant prosthesis, in order to facilitate access to biofilm control, in combination with decontamination of the implant surface by means of an ultrasonic d...
- The main objective of this project is to study the efficacy and the mechanistic value of blocking both atrial specific and atria-preferential dynamics of ionic currents to ter...
This study evaluates the difference of imaging diagnostic quality and fertility promoting effect in the diagnosis and treatment of infertility by hysterosalpingography between using ethiod...
The prevalence of nausea and vomiting after the administration of non-ionic contrast media has rarely been assessed. Thus, the aim of our study is to evaluate the prevalence and risk facto...
Background: Ionic silver-containing dressing has been proven as a broad spectrum antimicrobial agent to reduce inflammation of wounds and promote healing. However, surgical incisions are u...
Salts that melt below 100 C. Their low VOLATILIZATION can be an advantage over volatile organic solvents.
A reagent that is highly selective for the modification of arginyl residues. It is used to selectively inhibit various enzymes and acts as an energy transfer inhibitor in photophosphorylation.
A copolymer of polyethylene and polypropylene ether glycol. It is a non-ionic polyol surface-active agent used medically as a fecal softener and in cattle for prevention of bloat.
Silicone polymers which consist of silicon atoms substituted with methyl groups and linked by oxygen atoms. They comprise a series of biocompatible materials used as liquids, gels or solids; as film for artificial membranes, gels for implants, and liquids for drug vehicles; and as antifoaming agents.
A genetic process by which the adult organism is realized via mechanisms that lead to the restriction in the possible fates of cells, eventually leading to their differentiated state. Mechanisms involved cause heritable changes to cells without changes to DNA sequence such as DNA METHYLATION; HISTONE modification; DNA REPLICATION TIMING; NUCLEOSOME positioning; and heterochromatization which result in selective gene expression or repression.