skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Exciting H2 Molecules for Graphene Functionalization

Journal Article · · ACS Nano

Hydrogen functionalization of graphene by exposure to vibrationally excited H2 molecules is investigated by combined scanning tunneling microscopy, high-resolution electron energy loss spectroscopy, X-ray photoelectron spectroscopy measurements, and density functional theory calculations. The measurements reveal that vibrationally excited H2 molecules dissociatively adsorb on graphene on Ir(111) resulting in nanopatterned hydrogen functionalization structures. Calculations demonstrate that the presence of the Ir surface below the graphene lowers the H2 dissociative adsorption barrier and allows for the adsorption reaction at energies well below the dissociation threshold of the H–H bond. The first reacting H2 molecule must contain considerable vibrational energy to overcome the dissociative adsorption barrier. However, this initial adsorption further activates the surface resulting in reduced barriers for dissociative adsorption of subsequent H2 molecules. This enables functionalization by H2 molecules with lower vibrational energy, yielding an avalanche effect for the hydrogenation reaction. These results provide an example of a catalytically active graphene-coated surface and additionally set the stage for a re-interpretation of previous experimental work involving elevated H2 background gas pressures in the presence of hot filaments.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; Danish Council for Independent Research; Innovation Fund Denmark; European Research Council (ERC); Villum Foundation
Grant/Contract Number:
AC02-05CH11231; 0602-02566B; 0602-02265B; 11744
OSTI ID:
1638185
Journal Information:
ACS Nano, Vol. 12, Issue 1; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

References (51)

Atomic-scale control of graphene magnetism by using hydrogen atoms journal April 2016
Symmetry-Driven Band Gap Engineering in Hydrogen Functionalized Graphene journal November 2016
Bandgap opening in graphene induced by patterned hydrogen adsorption journal March 2010
Control of Graphene's Properties by Reversible Hydrogenation: Evidence for Graphane journal January 2009
Prospects for hydrogen storage in graphene journal January 2013
Hydrogen Storage in Rippled Graphene: Perspectives from Multi-Scale Simulations journal January 2015
Ambient pressure photoelectron spectroscopy: Practical considerations and experimental frontiers journal December 2016
Metastable Structures and Recombination Pathways for Atomic Hydrogen on the Graphite (0001) Surface journal April 2006
Atomic Hydrogen Adsorbate Structures on Graphene journal July 2009
Hydrogenated graphene on Ir(111): A high-resolution electron energy loss spectroscopy study of the vibrational spectrum journal March 2016
Controlling Hydrogenation of Graphene on Ir(111) journal April 2013
Deuterium adsorption on (and desorption from) SiC(0 0 0 1)-(3 × 3), $(\sqrt{\sf 3} \times \sqrt {\sf 3})$ R 30°, $({\sf 6}\sqrt {\sf 3} \times {\sf 6}\sqrt{\sf 3})$ R 30° and quasi-free-standing graphene obtained by hydrogen intercalation journal February 2014
Is there <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">sp</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>-bound H on epitaxial graphene? Evidence for adsorption on both sides of the sheet journal September 2012
The stretching vibration of hydrogen adsorbed on epitaxial graphene studied by sum-frequency generation spectroscopy journal May 2011
Thickness-Dependent Reversible Hydrogenation of Graphene Layers journal June 2009
Reversible Hydrogenation of Graphene on Ni(111)-Synthesis of “Graphone” journal January 2015
Growth of graphene on Ir(111) journal February 2009
Structure of epitaxial graphene on Ir(111) journal April 2008
N-type graphene induced by dissociative H2 adsorption at room temperature journal September 2012
Hydrogenation of Graphene by Reaction at High Pressure and High Temperature journal July 2015
Direct measurement of the amount of dissociated hydrogen atoms attached on graphene journal February 2015
First principles studies for the dissociative adsorption of H2 on graphene journal March 2003
Hydrogen on graphene under stress: Molecular dissociation and gap opening journal February 2010
Effects of hydroxyl group on H2 dissociation on graphene: A density functional theory study journal May 2013
Dissociative adsorption of H2 molecules on steric graphene surface: Ab initio MD study based on DFT journal August 2012
Electric Field Activated Hydrogen Dissociative Adsorption to Nitrogen-Doped Graphene journal August 2010
Electric field: A catalyst for hydrogenation of graphene journal June 2010
Dissociative adsorption of small molecules at vacancies on the graphite (0001) surface journal December 2006
H2 Dissociative Adsorption at the Zigzag Edges of Graphite journal January 2004
Hydrogen storage in platinum decorated hydrogen exfoliated graphene sheets by spillover mechanism journal January 2014
Investigation of Spillover Mechanism in Palladium Decorated Hydrogen Exfoliated Functionalized Graphene journal July 2011
Hydrogen spillover storage on Ca-decorated graphene journal August 2012
Is Spillover Relevant for Hydrogen Adsorption and Storage in Porous Carbons Doped with Palladium Nanoparticles? journal July 2016
Reversible Hydrogen Storage by Controlled Buckling of Graphene Layers journal December 2011
Influence of Graphene Curvature on Hydrogen Adsorption: Toward Hydrogen Storage Devices journal May 2013
Vibrational Excitation of Hydrogen via Recombinative Desorption of Atomic Hydrogen Gas on a Metal Surface journal January 1988
Observation of Exceptionally High Vibrational Excitation of Hydrogen Molecules Formed by Wall Recombination journal January 1988
A versatile fabrication method for cluster superlattices journal October 2009
Intensity of a source of atomic hydrogen based on a hot capillary journal March 2000
Raman Chirped Adiabatic Passage: a New Method for Selective Excitation of High Vibrational States journal June 1997
A fully automated, ‘thimble-size’ scanning tunnelling microscope journal December 1988
A versatile instrument for ambient pressure x-ray photoelectron spectroscopy: The Lund cell approach journal April 2016
The new ambient-pressure X-ray photoelectron spectroscopy instrument at MAX-lab journal August 2012
Real-space grid implementation of the projector augmented wave method journal January 2005
Electronic structure calculations with GPAW: a real-space implementation of the projector augmented-wave method journal June 2010
The atomic simulation environment—a Python library for working with atoms journal June 2017
A critical assessment of theoretical methods for finding reaction pathways and transition states of surface processes journal February 2010
Van der Waals Density Functional for General Geometries journal June 2004
Density-functional exchange-energy approximation with correct asymptotic behavior journal September 1988
Benchmark database of accurate (MP2 and CCSD(T) complete basis set limit) interaction energies of small model complexes, DNA base pairs, and amino acid pairs journal January 2006
An automated nudged elastic band method journal September 2016

Cited By (3)

Functionalized Graphene-Based Materials as Innovative Adsorbents of Organic Pollutants: a Concise Overview journal March 2019
Characterization of Pt- or Pd-doped graphene based on density functional theory for H 2 gas sensor journal July 2019
Hydrogen interaction with graphene on Ir(1 1 1): a combined intercalation and functionalization study journal January 2019

Figures / Tables (4)