Understanding the Synthesis of Supported Vanadium Oxide Catalysts using Chemical Grafting.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Understanding the Synthesis of Supported Vanadium Oxide Catalysts using Chemical Grafting."

The complexity of variables during incipient wetness impregnation synthesis of supported metal oxides precludes an in-depth understanding of the chemical reactions governing the formation of the dispersed oxide sites. This contribution describes the use of vapor phase deposition chemistry (also known as grafting) as a tool to systematically investigate the influence of isopropanol solvent on VO(OiPr)3 anchoring during synthesis of vanadium oxide on silica. We find that the availability of anchoring sites on silica not only depends on the pretreatment of the silica but also on the solvent present. H-bond donors can reduce the reactivity of isolated silanols whereas disruption of silanol nests by H-bond acceptors can turn unreactive H-bonded silanols into reactive anchoring sites.  The model suggested here can inform improved syntheses with increased dispersion of metal oxides on silica.


Journal Details

This article was published in the following journal.

Name: Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765


DeepDyve research library

PubMed Articles [18966 Associated PubMed Articles listed on BioPortfolio]

Redox Non-Innocent Ligand Supported Vanadium Catalysts for the Chemoselective Reduction of C=X (X = O, N) Functionalities.

Catalysis is the second largest application for V after its use as an additive to improve steel production. Molecular complexes of vanadium (V) are particularly useful and efficient catalysts for oxid...

CeO(111) electronic reducibility tuned by ultra-small supported bimetallic Pt-Cu clusters.

Controlling Ce4+ to Ce3+ electronic reducibility in a rare-earth binary oxide such as CeO2 has enormous applications in heterogeneous catalysis, where a profound understanding of reactivity and select...

Vanadium silicate (EVS)-supported silver nanoparticles: A novel catalytic sorbent for elemental mercury removal from flue gas.

Vanadium silicate (EVS) is a vanadium-substituted form of titanosilicate that has a high potential for use as a sorbent for mercury removal. In the present study, EVS with supported silver nanoparticl...

N-doped porous carbon supported Ni catalysts derived from modified Ni-MOF-74 for highly effective and selective catalytic hydrodechlorination of 1,2-dichloroethane to ethylene.

Metal-organic frameworks (MOFs) have received significant attention as promising precursors or sacrificial templates in the preparation of porous carbon supported catalysts. In this study, N-doped por...

Observation of Metal to Metal Oxide Progression: A Study of Charge Transfer Phenomenon at Ru-CuO Interface.

Surface charge and charge transfer between nanoclusters and oxide supports are of paramount importance to the catalysis, surface plasmonics, and optical energy harvesting areas. At present, high-energ...

Clinical Trials [3851 Associated Clinical Trials listed on BioPortfolio]

Study of Vanadium Supplement in Patients With Impaired Glucose Tolerance

The purpose of this study was to evaluate if the vanadium can improve the insulin sensitivity in patients with impaired glucose tolerance. Secondary purpose of this study was to assess cha...

Nitric Oxide Flux and Ureagenesis in Argininosuccinate Synthetase Deficiency (ASSD)(Citrullinemia I)

The urea cycle consists of a series of chemical reactions through which the body converts toxic waste- nitrogen into a substance called urea that can be disposed of easily. While disposal ...

Effects of Inhibition of NO-Synthesis on Renal Hemodynamics and Sodium Excretion in Patients With Essential Hypertension and Healthy Controls

The study tests the hypothesis that systemic and renal nitric oxide synthesis is changed in essential hypertension by investigating the effects of a non selective nitric oxide inhibitor on...

Vascular Effects of Endothelium-Derived Versus Hemoglobin-Transported Nitric Oxide in Healthy Subjects

Nitric oxide (NO) is a soluble gas, continuously synthesized by the endothelium, that contributes importantly to vasodilator tone of the coronary and systemic circulations by activating gu...

Concurrent Assessment of Skeletal Muscle Mass and Synthesis/Breakdown in Old Age

This study involves minimally-invasive techniques to measure muscle mass, muscle protein breakdown and synthesis simultaneously in older age.

Medical and Biotech [MESH] Definitions

Inorganic compounds that contain vanadium as an integral part of the molecule.

A metallic element with the atomic symbol V, atomic number 23, and atomic weight 50.94. It is used in the manufacture of vanadium steel. Prolonged exposure can lead to chronic intoxication caused by absorption usually via the lungs.

A diverse group of agents, with unique chemical structures and biochemical requirements, which generate NITRIC OXIDE. These compounds have been used in the treatment of cardiovascular diseases and the management of acute myocardial infarction, acute and chronic congestive heart failure, and surgical control of blood pressure. (Adv Pharmacol 1995;34:361-81)

The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.

The act or fact of grasping the meaning, nature, or importance of; understanding. (American Heritage Dictionary, 4th ed) Includes understanding by a patient or research subject of information disclosed orally or in writing.

Quick Search

DeepDyve research library

Searches Linking to this Article