Related Experiment Video
Updated: Jul 1, 2026
08:19
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
Published on: March 2, 2016
18.9K
Light-induced C-H activation on single-atom doped plasmonic silver nanoparticles
R Sundheep1, Hyun Woo Kim1,2
1Department of Chemistry, Gwangju Insitute of Science and Technology, Gwangju, 61005, Republic of Korea. hwk@gist.ac.kr.
Physical Chemistry Chemical Physics : PCCP
|January 14, 2026
Summary
Single-atom dopants on silver nanoparticles enhance light-driven methane activation. Gallium dopants create orbital coupling, enabling C-H bond breaking at lower laser intensities for improved catalysis.
Area of Science:
- Catalysis and Materials Science
- Surface Science and Nanotechnology
Background:
- Methane conversion is challenging due to its high stability.
- Plasmonic antenna-reactor systems show potential for light-driven methane activation.
- The impact of single-atom dopants on these systems is not well understood.
Purpose of the Study:
- To investigate the role of single-atom dopants in Ag20 plasmonic nanoparticles for methane activation.
- To elucidate the mechanism of dopant-enhanced C-H bond activation under plasmonic irradiation.
Main Methods:
- Dynamic simulations of plasmon-induced bond-length variations.
- Computational modeling of single-atom doped Ag20 nanoparticles interacting with methane.
Main Results:
- Single-atom dopants significantly enhance C-H bond activation in methane.
- Gallium dopants induce strong orbital coupling with methane, facilitating bond activation.
- Dopant-enhanced activation occurs at substantially lower laser intensities compared to undoped systems.
Conclusions:
- Atomic-scale dopant modifications can control plasmon-molecule interactions.
- This study reveals a new mechanism for light-driven methane activation.
- Findings provide design principles for advanced plasmonic catalysts.
Related Concept Videos
02:50Catalysis
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
01:21Chemical Ionization (CI) Mass Spectrometry
The molecular ion peak of a molecule in the mass spectrum provides vital information for molecular identification. However, conventional electron impact ionization can lead to the rapid dissociation of some molecular ions before they reach the detector. A milder ionization method is required to increase the lifetime of such ionized analyte molecules. Chemical ionization (CI) is a gas-phase protonation reaction useful for mass-analyzing analyte molecules that are easily protonated to yield the...
01:23Properties of Organometallic Compounds
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
01:04¹³C NMR: ¹H–¹³C Decoupling
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...