LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "surface sites" as a keyword



Assessment of Lewis‐Acidic Surface Sites Using Tetrahydrofuran as a Suitable and Smart Probe Molecule

Sign Up to like & get
recommendations! Published in 2022 at "ChemistryOpen"

DOI: 10.1002/open.202200021

Abstract: Abstract Measuring the Lewis‐acidic surface sites in catalysis is problematic when the material‘s surface area is very low (SBET ≤1 m2 ⋅ g−1). For the first time, a quantitative assessment of total acidic surface sites of very small… read more here.

Keywords: lewis acidic; molecule; surface; acidic surface ... See more keywords
Photo from wikipedia

Fully Exposed Cluster Catalyst (FECC): Toward Rich Surface Sites and Full Atom Utilization Efficiency

Sign Up to like & get
recommendations! Published in 2021 at "ACS Central Science"

DOI: 10.1021/acscentsci.0c01486

Abstract: Increasing attention has been paid to single-atom catalysts (SACs) in heterogeneous catalysis because of their unique electronic properties, maximized atomic utilization efficiency, and potential to serve as a bridge between the heterogeneous and homogeneous catalysis.… read more here.

Keywords: fully exposed; utilization efficiency; surface sites; exposed cluster ... See more keywords
Photo from wikipedia

Hot-Carrier Generation in Plasmonic Nanoparticles: The Importance of Atomic Structure

Sign Up to like & get
recommendations! Published in 2020 at "ACS Nano"

DOI: 10.1021/acsnano.0c03004

Abstract: Metal nanoparticles are attractive for plasmon-enhanced generation of hot carriers, which may be harnessed in photochemical reactions. In this work, we analyze the coherent femtosecond dynamics of photon absorption, plasmon formation, and subsequent hot-carrier generation… read more here.

Keywords: carrier generation; generation; structure; hot carrier ... See more keywords

NMR Spectroscopic Signatures of Cationic Surface Sites from Supported Coinage Metals Interacting with N-Heterocyclic Carbenes

Sign Up to like & get
recommendations! Published in 2024 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.4c00200

Abstract: N-heterocyclic carbenes (NHCs) have been extensively studied to modulate the reactivity of molecular catalysts, colloids, and their supported analogues, being isolated sites, clusters, or nanoparticles. While the interaction of NHCs on metal surfaces has been… read more here.

Keywords: nmr spectroscopic; surface; surface sites; heterocyclic carbenes ... See more keywords

Bronze alloys with tin surface sites for selective electrochemical reduction of CO2.

Sign Up to like & get
recommendations! Published in 2018 at "Chemical communications"

DOI: 10.1039/c8cc08066f

Abstract: Low concentration tin bronze alloys show high selectivity for CO2 electroreduction to CO, while high concentration tin bronze alloys show high selectivity for formate. The tin surface sites appear to control selectivity by influencing the… read more here.

Keywords: co2; surface sites; bronze alloys; tin surface ... See more keywords

A combined computational and experimental study of methane activation during oxidative coupling of methane (OCM) by surface metal oxide catalysts

Sign Up to like & get
recommendations! Published in 2021 at "Chemical Science"

DOI: 10.1039/d1sc02174e

Abstract: The experimentally validated computational models developed herein, for the first time, show that Mn-promotion does not enhance the activity of the surface Na2WO4 catalytic active sites for CH4 heterolytic dissociation during OCM. Contrary to previous… read more here.

Keywords: surface sites; surface; methane; combined computational ... See more keywords
Photo by ldxcreative from unsplash

Assigning 1H chemical shifts in paramagnetic mono- and bimetallic surface sites using DFT: a case study on the Union Carbide polymerization catalyst

Sign Up to like & get
recommendations! Published in 2023 at "Chemical Science"

DOI: 10.1039/d2sc06827c

Abstract: The Union Carbide (UC) ethylene polymerization catalyst, based on silica-supported chromocene, is one of the first industrial catalysts prepared by surface organometallic chemistry, though the structure of the surface sites remains elusive. Recently, our group… read more here.

Keywords: polymerization catalyst; surface; chemical shifts; surface sites ... See more keywords

Acidities of MgO Surface Sites: Implications for the Formation Mechanism of Mg(OH)2

Sign Up to like & get
recommendations! Published in 2025 at "Journal of Materials Chemistry A"

DOI: 10.1039/d5ta03981a

Abstract: The hydroxylation of periclase (MgO) to brucite (Mg(OH)2) is thought to be an important intermediate step when using MgO to capture CO2 from the atmosphere. However, the mechanism of hydroxylation... read more here.

Keywords: mgo surface; implications formation; surface sites; mechanism ... See more keywords

Chemical Orderings in CuCo Nanoparticles: Topological Modeling Using DFT Calculations

Sign Up to like & get
recommendations! Published in 2024 at "Nanomaterials"

DOI: 10.3390/nano14151242

Abstract: The orderings of atoms in bimetallic 1.6–2.1 nm-large CuCo nanoparticles, important as catalytic and magnetic materials, were studied using a combination of DFT calculations with a topological approach. The structure and magnetism of Cu50Co151, Cu101Co100,… read more here.

Keywords: orderings cuco; chemical orderings; surface sites; dft calculations ... See more keywords