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

Title: Adsorption of small hydrocarbons on rutile TiO2(110)

Journal Article · · Surface Science

Temperature programmed desorption and molecular beam scattering were used to study the adsorption and desorption of small hydrocarbons (n-alkanes, 1-alkenes and 1-alkynes with 1 - 4 carbon atoms of C1-C4) on rutile TiO2(110). We show that the sticking coefficients for all the hydrocarbons are close to unity (> 0.95) at an adsorption temperature of 60 K. The desorption energies for hydrocarbons of the same chain length increase from n-alkanes to 1-alkenes and to 1-alkynes. This trend is likely a consequence of an additional dative bonding of the alkene and alkyne π system to the coordinatively unsaturated Ti5c sites. Similar to previous studies on the adsorption of n-alkanes on metal and metal oxide surfaces, we find the desorption energies within each group (n-alkanes vs. 1-alkenes vs. 1-alkynes) from Ti5c sites increase linearly with the chain length. The absolute saturation coverages of each hydrocarbon on Ti5c sites were also determined. The saturation coverage of CH4, is found to be ~ 2/3 monolayer (ML). The saturation coverages of C2-C4 hydrocarbons are found nearly independent of the chain length with values of ~1/2 ML for n-alkanes and 1-alkenes and 2/3 ML for 1-alkynes. This result is surprising considering their similar sizes.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1322493
Report Number(s):
PNNL-SA-113158; 48368; KC0302010
Journal Information:
Surface Science, Vol. 650; ISSN 0039-6028
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

References (75)

The adsorption and reaction of low molecular weight alkanes on metallic single crystal surfaces journal June 2003
The surface science of titanium dioxide journal January 2003
Thermally-driven processes on rutile TiO2(110)-(1×1): A direct view at the atomic scale journal May 2010
Molecular-Level Insights into Photocatalysis from Scanning Probe Microscopy Studies on TiO 2 (110) journal December 2012
Structure of Clean and Adsorbate-Covered Single-Crystal Rutile TiO 2 Surfaces journal December 2012
Molecular Hydrogen Formation from Proximal Glycol Pairs on TiO 2 (110) journal April 2014
Enthalpies and Entropies of Adsorption on Well-Defined Oxide Surfaces: Experimental Measurements journal December 2012
Catalytic Dehydrogenation of Light Alkanes on Metals and Metal Oxides journal August 2014
Catalytic Reactions of Acetylene: A Feedstock for the Chemical Industry Revisited journal November 2013
Multilayer Adsorption of Methane and Chloromethane on the Molybdenum (100) Surface journal June 2012
The Adsorption Dynamics of Molecular Methane, Propane, and Neopentane on Pd(111):  Theory and Experiment journal August 2002
Molecular adsorption and growth of n-butane adlayers on Pt(111) journal January 2001
Structural Models and Thermal Desorption Energetics for Multilayer Assemblies of the n -Alkanes on Pt(111) journal January 2000
Alkane Trapping onto Structured Alkane Monolayers on Pt(111) at Low Temperature journal December 2000
Quantification of the selective activation of C–H bonds in short chain alkanes: The reactivity of ethane, propane, isobutane, n ‐butane, and neopentane on Ir(111) journal October 1995
Dynamics of molecular adsorption of ethane with platinum(111): a supersonic molecular beam study journal February 1991
The reaction of saturated and unsaturated hydrocarbons with the (110)‐(1×2) and (111) surfaces of iridium journal January 1984
The interaction of ethane, propane, isobutane, and neopentane with the (110) surface of iridium journal March 1982
Energetics and Kinetics of the Physisorption of Hydrocarbons on Au(111) journal October 1998
NEXAFS and TPD studies of molecular adsorption of hydrocarbons on Cu(100): segmental correlations with the heats of adsorption journal January 1998
Surface diffusion of n ‐alkanes on Ru(001) journal April 1990
A comparison of weak molecular adsorption of organic molecules on clean copper and platinum surfaces journal May 1984
Adsorption and Cyclotrimerization Kinetics of C 2 H 2 at a Cu(110) Surface journal April 2012
Geometric structure and chemical bonding of acetylene adsorbed on Cu(110) journal September 2004
Ethylene on Cu( 110 ) and Ni( 110 ): electronic structure and bonding derived from X-ray spectroscopy and theory journal June 2004
Determination of the bonding and orientation of ethylene on palladium(111) by near-edge x-ray absorption fine structure and photoelectron spectroscopy journal May 1990
Bonding and dehydrogenation of ethylene on palladium metal. Vibrational spectra and temperature-programed reaction studies on palladium(100) journal January 1985
Acetylene Coupling on Cu(111):  Formation of Butadiene, Benzene, and Cyclooctatetraene journal June 2005
Ethene Adsorption, Dehydrogenation and Reaction with Pd(110):  Pd as a Carbon ‘Sponge' journal February 2005
Propylene on Pt(111) journal June 2000
Ensemble Effects in the Coupling of Acetylene to Benzene on a Bimetallic Surface:  A Study with Pd{111}/Au journal January 1996
On the Mechanism for the Hydrogenation of Olefins on Transition-Metal Surfaces: The Chemistry of Ethylene on Pt(111) journal January 1996
Surface Structure and Reactivity in the Cyclization of Acetylene to Benzene with Pd Overlayers and Pd/Au Surface Alloys on Au{111} journal April 1995
Oxygen-Activated Combustion of Alkenes on the Pd(100) Surface journal May 1995
Ethyne Cyclization to Benzene over Cu(110) journal August 1995
Molecular mechanisms in the cyclotrimerization of acetylene to benzene on palladium (111) journal March 1988
Propene Adsorption on Clean and Oxygen-Covered Au(111) and Au(100) Surfaces journal September 2000
n-alkanes on Pt(111) and on C(0001)∕Pt(111): Chain length dependence of kinetic desorption parameters journal December 2006
Desorption Kinetics and Adlayer Sticking Model of n-Butane, n-Hexane, and n-Octane on Al2O3(0001) journal February 1995
Thermodynamic Investigation of n -Hexane Thin Films Adsorbed on Magnesium Oxide journal August 2006
Thermodynamic Investigation of Thin Films of Ethane Adsorbed on Magnesium Oxide journal May 2005
n-alkanes on MgO(100). I. Coverage-dependent desorption kinetics of n-butane journal April 2005
n-alkanes on MgO(100). II. Chain length dependence of kinetic desorption parameters for small n-alkanes journal April 2005
Pentane Adsorbed on MgO(100) Surfaces: A Thermodynamic, Neutron, and Modeling Study journal December 2014
Thermodynamic and Modeling Study of Thin n -Heptane Films Adsorbed on Magnesium Oxide (100) Surfaces journal February 2014
Alkane activation on crystalline metal oxide surfaces journal January 2014
Pathways and kinetics of methane and ethane C–H bond cleavage on PdO(101) journal September 2013
Selectivity in the initial C–H bond cleavage of n-butane on PdO(101) journal January 2013
Pathways for C–H bond cleavage of propane σ-complexes on PdO(101) journal January 2012
High Selectivity for Primary C–H Bond Cleavage of Propane σ-Complexes on the PdO(101) Surface journal October 2011
Facile C−H Bond Cleavage and Deep Oxidation of Propane on a PdO(101) Thin Film journal May 2009
Scanning Tunneling Microscopy of the RuO 2 (110) Surface at Ambient Oxygen Pressure journal February 2007
Adsorption of ethylene on stoichiometric RuO2(110) journal September 2004
Conversion of 1,2-Propylene Glycol on Rutile TiO 2 (110) journal July 2014
Conversion of 1,3-Propylene Glycol on Rutile TiO 2 (110) journal September 2014
Structural Sensitivity in the Dissociation of Water on TiO 2 Single-Crystal Surfaces journal January 1996
Molecular beam investigation of adsorption kinetics on bulk metal targets: Nitrogen on tungsten journal February 1972
Determination of Absolute Coverages for Small Aliphatic Alcohols on TiO 2 (110) journal October 2011
Physisorption of CO on the MgO(100) Surface journal May 2001
Adsorption Dynamics and Desorption Kinetics of Argon and Methane on MgO(100) journal August 2002
Structure and Dynamics of CO 2 on Rutile TiO 2 (110)-1×1 journal October 2012
Physisorption of N 2 , O 2 , and CO on Fully Oxidized TiO 2 (110) journal March 2006
Adsorption, Desorption, and Displacement Kinetics of H 2 O and CO 2 on TiO 2 (110) journal April 2014
Temperature independent physisorption kinetics and adsorbate layer compression for Ar adsorbed on Pt(111) journal October 2003
Enthalpies of Sublimation of Organic and Organometallic Compounds. 1910–2001 journal June 2002
Investigation of Cyclooctatetraene on Reduced TiO 2 (001) as a Possible Intermediate in Alkyne Cyclotrimerization journal October 1999
Cyclotrimerization of Alkynes on Reduced TiO2(001) Surfaces journal April 1994
Cyclotrimerization of sterically hindered alkynes in ultrahigh vacuum: TPD of tert-butylacetylene on the reduced TiO2(001) surface journal March 1995
Van der Waals Radii of Elements journal September 2001
Comparison of the Photodesorption Activities of cis -Butene, trans -Butene, and Isobutene on the Rutile TiO 2 (110) Surface journal October 2013
Photooxidation and Photodesorption in the Photochemistry of Isobutene on TiO 2 (110) journal June 2013
Propane σ-Complexes on PdO(101): Spectroscopic Evidence of the Selective Coordination and Activation of Primary CH Bonds journal September 2015
Molecular adsorption of small alkanes on a PdO(101) thin film: Evidence of σ-complex formation journal January 2010
Dispersion-corrected density functional theory calculations of the molecular binding of n -alkanes on Pd(111) and PdO(101) journal February 2012
Phenylacetylene on Cu(111):  Adsorption Geometry, Interfacial Electronic Structures and Thermal Chemistry journal April 2007

Cited By (1)

Low-temperature activation of methane on the IrO 2 (110) surface journal April 2017

Similar Records

Adsorption of small hydrocarbons on rutile TiO2(110)
Journal Article · Sat Nov 21 00:00:00 EST 2015 · Surface Science · OSTI ID:1322493

Understanding the Binding of Aromatic Hydrocarbons on Rutile TiO2(110)
Journal Article · Thu Jul 11 00:00:00 EDT 2019 · Journal of Physical Chemistry C · OSTI ID:1322493

Structure and Dynamics of CO2 on Rutile TiO2 (110)-1×1
Journal Article · Tue Oct 30 00:00:00 EDT 2012 · Journal of Physical Chemistry. C · OSTI ID:1322493