Publications by Li Chen | EPFL Graph Search

Related publications (6)

Vibrationally Bond-Selective Chemisorption of Methane Isotopologues on Pt(111) Studied by Reflection Absorption Infrared Spectroscopy

In this thesis, I describe the design and first applications of a new molecular-beam/surface-science ultra-high vacuum apparatus. The new machine combines rovibrational state-selective infrared pumping of gas-phase reactants with reflection absorption infr ...

EPFL2012

Quantum state-resolved gas/surface reaction dynamics probed by reflection absorption infrared spectroscopy

Rainer Beck, Li Chen, Régis Bisson, Hirokazu Ueta, Li Chen

We report the design and characterization of a new molecular-beam/surface-science apparatus for quantum state-resolved studies of gas/surface reaction dynamics combining optical state-specific reactant preparation in a molecular beam by rapid adiabatic pas ...

American Institute of Physics2013

The Negligible Role of C-H Stretch Excitation in the Physisorption of CH4 on Pt(111)

Rainer Beck, Li Chen, Hirokazu Ueta, Helen Jane Chadwick, Li Chen

We report a molecular beam study of the effect of vibrational excitation on the physisorption of methane on a Pt(111) surface. Our experiments use a continuous molecular beam of CH4, prepared in its antisymmetic C-H stretch mode ν3 by infrared laser pumpin ...

American Chemical Society2015

State-Resolved Methane Dissociation on Pt(111) Studied by Reflection Absorption Infrared Spectroscopy

Rainer Beck, Li Chen, Hirokazu Ueta, Li Chen

The dissociation of methane on Pt(111) was studied using quantum state-resolved methods and reflection absorption infrared spectroscopy (RAIRS), at a surface temperature of 150 K where the nascent reaction products methyl(ads) and H(ads) are stable and acc ...

2015

Quantum state-resolved CH4 dissociation on Pt(111): coverage dependent barrier heights from experiment and density functional theory

Rainer Beck, Li Chen, Hirokazu Ueta, Li Chen

The dissociative chemisorption of CH4 on Pt(111) was studied using quantum state-resolved methods at a surface temperature (Ts) of 150 K where the nascent reaction products CH3(ads) and H(ads) are stable and accumulate on the surface. Most previous experim ...

Royal Society of Chemistry2013

Vibrationally bond-selected chemisorption of methane isotopologues on Pt(111) studied by reflection absorption infrared spectroscopy

Rainer Beck, Li Chen, Régis Bisson, Hirokazu Ueta, Li Chen

Reflection absorption infrared spectroscopy (RAIRS) was used to probe for vibrational bond-selectivity in the dissociative chemisorption of three partially deuterated methane isotopologues on a Pt(111) surface. While a combination of incident translational ...

Royal Society of Chemistry2012