Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Adsorption of Gases on Solids01:28

Adsorption of Gases on Solids

259
Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
259
Adsorption Isotherms II01:25

Adsorption Isotherms II

126
Brunauer, Emmett, and Teller (BET) introduced a theory in 1938 that modified Langmuir's assumptions to explain multilayer physical adsorption. This theory is applicable to Type II isotherms and provides a more realistic picture of adsorption processes. The BET theory assumes a uniform solid surface with localized adsorption sites, where adsorption at one site doesn't affect adsorption at neighboring sites. This theory also allows for the possibility of additional molecules being adsorbed on top...
126
Adsorption Isotherms I01:29

Adsorption Isotherms I

206
Adsorption isotherms are mathematical models that describe how molecules in a gas or liquid phase interact with surfaces. Two of the most common isotherm models are the Langmuir and Freundlich isotherms, which relate to Type I monolayer chemisorption. The Langmuir model is based on four key assumptions:• Adsorption cannot exceed monolayer coverage.• All surface sites are equivalent.• Molecules adsorb only at vacant sites.• There are no interactions between adsorbed...
206

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Exciton Steering via Potential Landscape Engineered by Excited Electron-Hole Phase Transition.

Physical review letters·2026
Same author

Isomeric multi-hydrogen-bonding enables blue perovskite LEDs.

Nature·2026
Same author

[3 + 2] Cycloaddition of Iminyl Radicals and 2-Azaallyl Anions for the Synthesis of Multisubstituted 2-Imidazolines.

Organic letters·2026
Same author

Comprehensive profiling of chemical composition, plasma-absorbed prototypes, metabolites, and pharmacokinetics of Jiannao Bushen Pill in rats using UHPLC-MS and microdialysis.

Journal of pharmaceutical and biomedical analysis·2026
Same author

Explosive nucleation and growth of Pb islands on Ge(111) below room temperature via collective diffusion.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same author

Fungal metabolite-based immunotherapy overcomes tumor-associated macrophage immunosuppression.

Cell reports. Medicine·2026

Related Experiment Video

Updated: Apr 23, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
08:40

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Published on: May 15, 2018

9.0K

Molecular adsorption on graphene.

Lingmei Kong1, Axel Enders, Talat S Rahman

  • 1Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, Theodore Jorgensen Hall, 855 North 16th Street, University of Nebraska, PO Box 880299, Lincoln, NE 68588-0299, USA.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|October 8, 2014
PubMed
Summary
This summary is machine-generated.

Molecular adsorbates effectively tune epitaxial graphene

More Related Videos

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

2.5K
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

13.4K

Related Experiment Videos

Last Updated: Apr 23, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
08:40

Preparation and Characterization of C60/Graphene Hybrid Nanostructures

Published on: May 15, 2018

9.0K
Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

2.5K
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

13.4K

Area of Science:

  • Materials Science
  • Surface Science
  • Nanotechnology

Background:

  • Epitaxial graphene's electronic properties are crucial for advanced applications.
  • Controlling charge carrier concentration and band gap is key for device performance.
  • Molecular adsorption offers a promising route for tuning graphene's electronic structure.

Purpose of the Study:

  • To review current research on engineering epitaxial graphene's electronic properties using molecular adsorbates.
  • To analyze the interactions between graphene and various adsorbed molecules.
  • To discuss the development and limitations of graphene-based gas sensors.

Main Methods:

  • Comprehensive literature review of studies on molecular adsorption on epitaxial graphene.
  • Analysis of interactions involving small gas molecules, aromatic/non-aromatic molecules, and biomolecules.
  • Examination of graphene-based gas sensor concepts and performance.

Main Results:

  • Molecular adsorption strongly manipulates graphene's electronic structure, enabling p- and n-doping.
  • This method is superior to approaches using edge effects, defects, or strain.
  • Graphene-based gas sensors are feasible due to large adsorbate-induced conductivity variations.

Conclusions:

  • Molecular adsorbates provide a powerful tool for tuning epitaxial graphene's electronic properties.
  • Graphene-based gas sensors demonstrate potential but require improved chemical selectivity.
  • Further research is needed to overcome selectivity challenges in graphene gas sensors.