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Title: Reactive Force Field for Simulations of the Pyrolysis of Polysiloxanes into Silicon Oxycarbide Ceramics

Journal Article · · Journal of Physical Chemistry. C

We provide a new reactive force field (ReaxFF) for simulations of silicon oxycarbide (SiCO) ceramics and of their syntheses from inorganic polymer precursors. The validity of the force field is extensively tested against experimental and computational thermochemical data. Its performance in simulation at elevated temperatures is gauged by the results of comprehensive ab initio molecular dynamics simulations. We apply the force field to the formation of amorphous SiCO in a simulated polymer pyrolysis. Modeling results are in good agreement with experimental observations and allow new insights into the formation of graphene segregations embedded in an amorphous oxycarbide matrix. The new ReaxFF for Si-C-O-H compounds enables large- scale and long-time atomistic simulations with unprecedented fidelity.

Research Organization:
Univ. of Virginia, Charlottesville, VA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0008195
OSTI ID:
1542912
Journal Information:
Journal of Physical Chemistry. C, Vol. 123, Issue 27; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (58)

Chemical Durability of Silicon Oxycarbide Glasses journal June 2002
Microstructural and mechanical characterization of sol gel-derived Si–O–C glasses journal December 2002
Influence of free carbon on the Young's modulus and hardness of polymer‐derived silicon oxycarbide glasses journal October 2018
A Hydrogen-Permselective Silicon Oxycarbide Membrane Derived from Polydimethylsilane journal October 1999
Physical and Barrier Properties of Amorphous Silicon-Oxycarbide Deposited by PECVD from Octamethylcyclotetrasiloxane journal January 2004
Hydrogen enhances the radiation resistance of amorphous silicon oxycarbides journal September 2017
Superior radiation tolerant materials: Amorphous silicon oxycarbide journal June 2015
Chemical oxidation of silicon oxycarbide ceramics for advanced drug delivery systems journal September 2015
Silicon oxycarbide glass-graphene composite paper electrode for long-cycle lithium-ion batteries journal March 2016
Polymer-Derived Ceramics: 40 Years of Research and Innovation in Advanced Ceramics: Polymer-Derived Ceramics journal June 2010
Comparative study of the effects of thermal treatment on the optical properties of hydrogenated amorphous silicon-oxycarbide journal July 2007
Precursor chemistry for ULK CVD journal December 2005
Synthesis and characterization of inorganic silicon oxycarbide glass thin films by reactive rf-magnetron sputtering journal January 2007
Systematic Structural Characterization of the High-Temperature Behavior of Nearly Stoichiometric Silicon Oxycarbide Glasses journal June 2004
Microstructural Evolution of Thermally Treated Low-Dielectric Constant SiOC:H Films Prepared by PECVD journal January 2006
Structural Characterization of Sol-Gel Derived Oxycarbide Glasses. 1. Study of the Pyrolysis Process journal June 1994
First-Principles Calculations and Analysis of 29 Si Nuclear Magnetic Resonance Chemical Shifts in Silicon Oxycarbide Ceramics journal December 2014
Polymer-derived SiCN and SiOC ceramics – structure and energetics at the nanoscale journal January 2013
Ceramic Nanocomposites from Tailor-Made Preceramic Polymers journal April 2015
Silicon oxycarbide glasses and glass-ceramics: “All-Rounder” materials for advanced structural and functional applications journal August 2018
Modelling and simulation of amorphous silicon oxycarbide journal January 2003
Searching insight into the atomistic structure of SiCO ceramics journal January 2010
ReaxFF:  A Reactive Force Field for Hydrocarbons journal October 2001
Thermal Stability of Organic Monolayers Grafted to Si(111): Insights from ReaxFF Reactive Molecular Dynamics Simulations journal August 2017
Si/C/H ReaxFF Reactive Potential for Silicon Surfaces Grafted with Organic Molecules journal June 2018
Oxidation of Silicon Carbide by O 2 and H 2 O: A ReaxFF Reactive Molecular Dynamics Study, Part I journal July 2012
Hydrogen reverses the clustering tendency of carbon in amorphous silicon oxycarbide journal August 2015
Reactive Dynamics Simulation Study on the Pyrolysis of Polymer Precursors To Generate Amorphous Silicon Oxycarbide Structures journal February 2018
Development of a ReaxFF Potential for Carbon Condensed Phases and Its Application to the Thermal Fragmentation of a Large Fullerene journal January 2015
Structure and reactivity of amorphous silicon nitride investigated with density-functional methods journal November 2001
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
Fast Parallel Algorithms for Short-Range Molecular Dynamics journal March 1995
Parallel reactive molecular dynamics: Numerical methods and algorithmic techniques journal April 2012
Canonical sampling through velocity rescaling journal January 2007
ARXPS studies of SiO 2 -SiC interfaces and oxidation of 6H SiC single crystal Si-(001) and C-(00 1 ) surfaces journal December 1994
Silicon oxycarbide formation on SiC surfaces and at the SiC/SiO2 interface journal May 1997
Influence of the polymer architecture on the high temperature behavior of SiCO glasses: A comparison between linear- and cyclic-derived precursors journal February 2010
Elucidation of the atomic-scale mechanism of the anisotropic oxidation rate of 4H-SiC between the (0001) Si-face and ( 000 1 ¯) C-face by using a new Si-O-C interatomic potential journal May 2018
Creep Viscosity and Stress Relaxation of Gel-Derived Silicon Oxycarbide Glasses journal May 2001
Notes - Thermal Rearrangement of Hexamethyldisilane to Trimethyl(dimethylsilylmethyl)silane journal January 1958
Revisiting silica with ReaxFF: Towards improved predictions of glass structure and properties via reactive molecular dynamics journal July 2016
Dynamics of Confined Reactive Water in Smectite Clay–Zeolite Composites journal February 2012
Interatomic potential for Si–O systems using Tersoff parameterization journal April 2007
Structural and Chemical Properties of Silyl Radicals journal July 1995
Molecular dynamics investigation of structure and high-temperature mechanical properties of SiBCO ceramics journal October 2014
Synthesis and characterization of carbon-enriched silicon oxycarbides journal January 2005
Porous and high surface area silicon oxycarbide-based materials—A review journal November 2015
SiOC ceramic with high excess free carbon journal January 2008
Structural Design of Polymer-Derived SiOC Ceramic Aerogels for High-Rate Li Ion Storage Applications
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  • Journal of the American Ceramic Society, Vol. 99, Issue 9 https://doi.org/10.1111/jace.14323
journal June 2016
The Li-storage capacity of SiOC glasses with and without mixed silicon oxycarbide bonds journal January 2018
Silicon Oxycarbide-Derived Carbon as Potential NO 2 Gas Sensor: A First Principles’ Study journal November 2018
New insights into the sol–gel condensation of silica by reactive molecular dynamics simulations journal June 2018
Pyrolysis Kinetics for the Conversion of a Polymer into an Amorphous Silicon Oxycarbide Ceramic journal September 2002
Pyrolytic conversion of organopolysiloxanes journal January 2017
Heat capacities, entropies, and Gibbs free energies of formation of low-k amorphous Si(O)CH dielectric films and implications for stability during processing journal January 2019
Thermal conductivity of plasma deposited amorphous hydrogenated boron and carbon rich thin films journal February 2019
Influence of topological constraints on ion damage resistance of amorphous hydrogenated silicon carbide journal February 2019

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