Final report: DOE Contract Number DE-FG02-91ER14205 (11/01/97 - 10/31/00) [Dynamics of surface photochemistry]

Ho, Wilson

Cornell University

关键词: Photochemistry;    Chemical Reactions;    Dissociation;    Heterogeneous Catalysis;    Vibrational States;   

DOI  :  10.2172/811276
RP-ID  :  DOE/ER/14205-9
RP-ID  :  FG02-91ER14205
RP-ID  :  811276

美国|英语

来源: UNT Digital Library

【 摘 要 】

This project seeks to understand the mechanism of elementary chemical reactions on solid surfaces, with implications for heterogeneous catalysis, atmospheric chemistry, and materials synthesis. The emphasis of the study is placed on an atomic scale understanding by probing the fundamental motions of individual molecules such as vibration, rotation, conformational change, and nuclear motions leading to bond dissociation and formation. The pathways of energy flow during a chemical transformation are investigated by considering the excitation source (photons, tunneling electrons, and heat or phonons), electronic and nuclear relaxation mechanisms and rates, and charge and energy transfers.