2010年4月
Tribochemical Reaction Dynamics of Molybdenum Dithiocarbamate on Nascent Iron Surface: A Hybrid Quantum Chemical/Classical Molecular Dynamics Study
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- 巻
- 10
- 号
- 4
- 開始ページ
- 2495
- 終了ページ
- 2502
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1166/jnn.2010.1399
- 出版者・発行元
- AMER SCIENTIFIC PUBLISHERS
Using a hybrid quantum chemical/classical molecular dynamics method, we have studied the tribochemical reaction dynamics of molybdenum dithiocarbamate (MoDTC), a commonly used friction modifier in automobile engine oils. MoDTC molecule adsorbed on rubbing nascent iron surface was situated. We firstly investigated the dynamic behavior of MoDTC molecule on the rubbing Fe(001) surface. During the friction simulation, the elongation of Mo-O bonds was observed, forming the Mo(2)S(4) and thiocarbamic acid molecules. To unveil the detailed mechanism of this bond elongation, the electronic states of the MoDTC molecule and Fe(001) surface were computed, and the catalytic effects of Fe(001) surface to the molecule was found. We also found that extreme friction would influence the complete Mo-O bond dissociation. By using the hybrid quantum chemical/classical molecular dynamics method, we successfully simulated the tribochemical reaction dynamics of MoDTC as a friction modifier and obtained the influences of nascent iron surface and friction on its chemical reaction.
- リンク情報
-
- DOI
- https://doi.org/10.1166/jnn.2010.1399
- CiNii Articles
- http://ci.nii.ac.jp/naid/80020881486
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/20355453
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000273984900032&DestApp=WOS_CPL
- ID情報
-
- DOI : 10.1166/jnn.2010.1399
- ISSN : 1533-4880
- CiNii Articles ID : 80020881486
- PubMed ID : 20355453
- Web of Science ID : WOS:000273984900032