Advertisement

Topics

Controlling Reaction Selectivity over Hybrid Plasmonic Nanocatalysts.

08:00 EDT 23rd October 2018 | BioPortfolio

Summary of "Controlling Reaction Selectivity over Hybrid Plasmonic Nanocatalysts."

The localized surface plasmon resonance (LSPR) excitation in plasmonic nanoparticles has been used to accelerate several catalytic transformations under visible-light irradiation. In order to fully harness the potential of plasmonic catalysis, multimetallic nanoparticles containing a plasmonic and a catalytic component, where LSPR-excited energetic charge carriers and the intrinsic catalytic active sites work synergistically, have raised increased attention. Despite several exciting studies observing rate enhancements, controlling reaction selectivity remains very challenging. Here, by employing multimetallic nanoparticles combining Au, Ag and Pt in an Au@Ag@Pt core-shell and an Au@AgPt nanorattle architectures, we demonstrate that reaction selectivity of a sequential reaction can be controlled under visible light illumination. The control of the reaction selectivity in plasmonic catalysis was demonstrated for the hydrogenation of phenylacetylene as a model transformation. We have found that the localized interaction between the triple bond in phenylacetylene and the Pt nanoparticle surface enables selective hydrogenation of the triple bond (relative to the double bond in styrene) under visible light illumination. Atomistic calculations show that the enhanced selectivity toward the partial hydrogenation product is driven by distinct adsorption configurations and charge delocalization of the reactant and the reaction intermediate at the catalyst surface. We believe these results will contribute to the use of plasmonic catalysis to drive and control a wealth of selective molecular transformations under eco-friendly conditions and visible light illumination.

Affiliation

Journal Details

This article was published in the following journal.

Name: Nano letters
ISSN: 1530-6992
Pages:

Links

DeepDyve research library

PubMed Articles [9893 Associated PubMed Articles listed on BioPortfolio]

Ultrathin Polyaniline-Coated Pt-Ni Alloy Nanooctahedra for Electrochemical Methanol Oxidation Reaction.

Controlling the morphology and composition of nanocatalysts constructed with metals and conductive polymers has attracted owing to their high possibility to the development of high-efficient catalysts...

Polarization controllable plasmonic-enhancement on the optical response of 2D GaSe layers.

Resonant plasmonic coupling has been considered as a promising strategy to enhance the optical response and manipulate the polarization of two-dimensional (2D) layer materials while towards the practi...

Nanocatalysts-augmented Fenton chemical reaction for nanocatalytic tumor therapy.

It is the challenging goal in cancer biomedicine to search novel cancer-therapeutic modality with concurrent high therapeutic efficiency on combating cancer and low side effects to normal cells/tissue...

Ultrasmall CuS nanodots as photothermal-enhanced Fenton nanocatalysts for synergistic tumor therapy at NIR-II biowindow.

Reactive oxygen species (ROS)-mediated nanocatalytic therapy, as conducted by the tumor microenvironment to generate toxic hydroxyl (OH) radicals with the assistant of Fenton nanocatalysts, exhibits h...

Formation of Bound States in the Continuum in Hybrid Plasmonic-Photonic Systems.

A bound state in the continuum (BIC) is a localized state of an open structure with access to radiation channels, yet it remains highly confined with, in theory, an infinite lifetime and quality facto...

Clinical Trials [1819 Associated Clinical Trials listed on BioPortfolio]

Beta-2 Polymorphisms and Beta Receptor Selectivity

We hypothesize that b2 adrenergic polymorphisms affect b-receptor selectivity in patients with heart failure treated with either a b1-selective or a b-nonselective agent. b-2 polymorphisms...

Hybrid SA RGP Center/S-H Skirt Daily Wear 90 Day Multicenter Study

The purpose of the study is to demonstrate that the SynergEyes SA Hybrid Contact Lens clinical performance is substantially equivalent to that of the SynergEyes A Hybrid Lens when studied:...

Hybrid APC Assisted EMR for Large Colon Polyps

The purpose of this study to evaluate and examine, weather use of Hybrid Argon Plasma Coagulation (APC) as adjunct to endoscopic mucosal resection (EMR) will reduce the risk of residual or...

Effectiveness of the Just Right Challenge Food Club for Decreasing Food Selectivity and Increasing Mealtime Quality

This single subject study tested the effectiveness of the Just Right Challenge Food Club for decreasing food selectivity and increasing mealtime qualify for children with developmental dis...

Laparoscopic Transvaginal Hybrid Cholecystectomy: a Prospective Data Collection.

Transvaginal hybrid procedures especially the transvaginal hybrid cholecystectomy are of interest as an available NOTES-Procedure for the clinical routine. Few authors have demonstrated th...

Medical and Biotech [MESH] Definitions

Screening techniques first developed in yeast to identify genes encoding interacting proteins. Variations are used to evaluate interplay between proteins and other molecules. Two-hybrid techniques refer to analysis for protein-protein interactions, one-hybrid for DNA-protein interactions, three-hybrid interactions for RNA-protein interactions or ligand-based interactions. Reverse n-hybrid techniques refer to analysis for mutations or other small molecules that dissociate known interactions.

Methods for using more than one primer set in a polymerase chain reaction to amplify more than one segment of the target DNA sequence in a single reaction.

Methods used for detecting the amplified DNA products from the polymerase chain reaction as they accumulate instead of at the end of the reaction.

A subgroup of TRP cation channels that contain 3-4 ANKYRIN repeats and a conserved C-terminal domain. Members are highly expressed in the CENTRAL NERVOUS SYSTEM. Selectivity for calcium over sodium ranges from 0.5 to 10.

A subgroup of TRP cation channels named after vanilloid receptor. They are very sensitive to TEMPERATURE and hot spicy food and CAPSAICIN. They have the TRP domain and ANKYRIN repeats. Selectivity for CALCIUM over SODIUM ranges from 3 to 100 fold.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article