Reactive molecular dynamics simulations of thermal and shear-driven oligomerization

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چکیده

• The surface plays an important role in oligomerization of ?-pinene by providing reactive oxygen sites. Shear stress is the key driver mechanochemical reactions. can activate multiple reaction pathways that are not accessible thermally. induces physical deformation reacting species to make them more reactive. Mechanochemical reactions play a critical many manufacturing, tribological, and synthesis processes. Often, these happen at sliding interface which makes difficult study experimentally. Such fully understood since reactant subject frictional heating mechanical simultaneously. Here, driven heat, normal stress, shear were investigated using molecular dynamics simulations molecules on silica. Results identified as under tribological conditions. Normal alone was ineffective inducing any could be thermally only very high temperatures. Analysis showed mechanisms Calculations bond lengths dihedral angles revealed such activation accompanied species. findings from provide insights into underlying guide design materials processes with optimized potentially tunable shear-induced

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ژورنال

عنوان ژورنال: Applied Surface Science

سال: 2022

ISSN: ['1873-5584', '0169-4332']

DOI: https://doi.org/10.1016/j.apsusc.2022.153209