Adsorption energy of oxygen molecules on graphene and two-dimensional tungsten disulfide

Scientific Reports
Filchito Renee BagsicanI Kawayama

Abstract

Adsorption of gas molecules on the surface of atomically layered two-dimensional (2D) materials, including graphene and transition metal dichalcogenides, can significantly affect their electrical and optical properties. Therefore, a microscopic and quantitative understanding of the mechanism and dynamics of molecular adsorption and desorption has to be achieved in order to advance device applications based on these materials. However, recent theoretical calculations have yielded contradictory results, particularly on the magnitude of the adsorption energy. Here, we have experimentally determined the adsorption energy of oxygen molecules on graphene and 2D tungsten disulfide using temperature-programmed terahertz (THz) emission microscopy (TPTEM). The temperature dependence of THz emission from InP surfaces covered with 2D materials reflects the change in oxygen concentration due to thermal desorption, which we used to estimate the adsorption energy of oxygen molecules on graphene (~0.15 eV) and tungsten disulphide (~0.24 eV). Furthermore, we used TPTEM to visualize relative changes in the spatial distribution of oxygen molecules on monolayer graphene during adsorption and desorption. Our results provide much insight into the me...Continue Reading

References

Apr 12, 2003·Physical Review Letters·Hendrik UlbrichtTobias Hertel
Oct 23, 2004·Science·K S NovoselovA A Firsov
Mar 3, 2007·Nature Materials·A K Geim, K S Novoselov
Jul 20, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·B F Hallac, M Asscher
Jul 31, 2007·Nature Materials·F SchedinK S Novoselov
Apr 3, 2008·Scientific American·Andre K Geim, Philip Kim
Jun 23, 2009·Science·A K Geim
Feb 5, 2011·Science·Jonathan N ColemanValeria Nicolosi
Aug 25, 2012·ACS Nano·Mahito YamamotoWilliam G Cullen
Oct 5, 2012·Nature·Dinh Loc DuongYoung Hee Lee
Nov 29, 2012·Nature Communications·Callum J DochertyMichael B Johnston
Mar 8, 2013·ACS Nano·Sheneve Z ButlerJoshua E Goldberger
Apr 30, 2014·Nature Communications·Peng ZhangJun Lou
May 16, 2014·Chemical Society Reviews·Pere MiróThomas Heine
Aug 26, 2014·Nature Nanotechnology·Oleg V Yazyev, Yong P Chen
Dec 19, 2015·Physical Chemistry Chemical Physics : PCCP·Geonyeop LeeJihyun Kim

❮ Previous
Next ❯

Citations

Jul 13, 2018·Physical Chemistry Chemical Physics : PCCP·Carlos Romero-MuñizRubén Pérez
Jan 23, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yuanyuan HuangXinlong Xu
Aug 16, 2019·Physical Chemistry Chemical Physics : PCCP·Jimena A Olmos-Asar, Marcelo M Mariscal
Oct 3, 2019·The Journal of Chemical Physics·Neil A Mehta, Deborah A Levin
May 3, 2018·Optics Express·Daniel M Mittleman
Nov 7, 2019·Optics Express·Katherine NiessenA G Markelz
Jun 12, 2019·Sensors·Valentina PaolucciCarlo Cantalini
Jul 17, 2020·Optics Express·Angela PizzutoPernille Klarskov
Mar 19, 2021·The Journal of Physical Chemistry. a·Alejandro Rivero SantamaríaJ Iñaki Juaristi
Apr 7, 2021·The Review of Scientific Instruments·Son T LeArvind Balijepalli
Jul 9, 2021·Journal of Molecular Graphics & Modelling·Akhtar Hussain, A Basit

❮ Previous
Next ❯

Methods Mentioned

BETA
thermal desorption spectroscopy

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.