A5013032492- Polymer crystallization and properties
- Petroleum Processing and Analysis
- Thermal and Kinetic Analysis
- Hydrocarbon exploration and reservoir analysis
- Catalysis and Oxidation Reactions
- Fiber-reinforced polymer composites
- Advancements in Battery Materials
- Enhanced Oil Recovery Techniques
- Thermochemical Biomass Conversion Processes
- Analytical Chemistry and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Mesoporous Materials and Catalysis
- Heat transfer and supercritical fluids
- Molecular Junctions and Nanostructures
- Catalysis and Hydrodesulfurization Studies
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Graphene research and applications
- Catalytic Processes in Materials Science
- Conducting polymers and applications
ExxonMobil (United States)
2019-2023
Schunk Carbon Technology (Germany)
2016-2017
Auburn University
2002
Determination of the molecular structures petroporphyrins has been crucial to understand diagenetic pathways and maturation petroleum. However, these studies have hampered by their structural complexity challenges associated with isolation. In comparison skeletal macrocyclic structures, much less is known about substitutions, which are more sensitive diagenesis pathways. While isolated vanadyl largely consist etioporphyrin deoxophylloerythroetioporphyrin as expected, surprisingly, we find...
The initial thermal reactions of aromatic hydrocarbons are relevant to many industrial applications. However, tracking the growing number heavy polycyclic hydrocarbon (PAH) products is extremely challenging because unfolding in parallel from a mixture molecules. Herein, we studied 2,7-dimethylpyrene (DMPY) decipher roles methyl substituents during mild treatment. We found that presence key for reducing severity required initiate chemical natural molecular mixtures. A complex including...
This work aims to study the reactivity of a broad range aromatic hydrocarbons better understand reactivities more complex hydrocarbon mixtures. A set closed-system pyrolysis experiments were conducted on diverse ∼30 polycyclic (PAHs) at thermal onset reaction temperature 400 °C structural effects and shed light early events mechanisms. Thermal transformations, including methyl transfer (alkylation/dealkylation), rearrangement, condensation, molecular growth, other chemical are often...
We investigated some specially designed model compounds as proxies for archipelago structures in asphaltenes and heavy oils using noncontact atomic force microscopy (nc-AFM). Various adsorption conformations of three different kinds linkers including aryl–aryl, aryl–CH2–aryl, aryl–(CH2)3–aryl were identified. By focusing on the nature linkages or bridges between aromatic cores, this work directly addresses long-standing question petroleum molecular by validating detailed features images...
Petroleum pitch M-50 (or A-240) has been well-known in making valuable carbon materials through thermal treatments. How these molecules react to produce and the mechanisms of polymerization molecular weight growth under conditions are great significance yet still unclear. Structures produced by reactions were characterized with non-contact atomic force microscopy compared structures previously (Chen, P.; Metz, J. N.; Mennito, A. S.; Merchant, Smith, S. E.; Siskin, M.; Rucker, Dankworth, D....
Organic reagents are commonly employed in making a wide range of materials and play crucial roles enabling their activities or performances. However, the identity organics final stages active species is challenging to characterize, mechanisms material development difficult understand due limited techniques available at heterogeneous interface organic inorganic phases. Hence, we present study using isotope-edited FT-IR elucidate specific groups contributing an IR marker band shed light on...
The initial thermal reactions of aromatic hydrocarbons are relevant to many industrial applications. However, tracking the growing number heavy polycyclic hydrocarbon (PAH) products is extremely challenging because unfolding in parallel from a mixture molecules. Herein, we studied 2,7-dimethylpyrene (DMPY) decipher roles methyl substituents during mild treatment. We found that presence key for reducing severity required initiate chemical natural molecular mixtures. A complex including...
The initial thermal reactions of aromatic hydrocarbons are relevant to many industrial applications. However, tracking the growing number heavy polycyclic hydrocarbon (PAH) products is extremely challenging because unfolding in parallel from a mixture molecules. Herein, we studied 2,7-dimethylpyrene (DMPY) decipher roles methyl substituents during mild treatment. We found that presence key for reducing severity required initiate chemical natural molecular mixtures. A complex including...
The initial thermal reactions of aromatic hydrocarbons are relevant to many industrial applications. However, tracking the growing number heavy polycyclic hydrocarbon (PAH) products is extremely challenging because unfolding in parallel from a mixture molecules. Herein, we studied 2,7-dimethylpyrene (DMPY) decipher roles methyl substituents during mild treatment. We found that presence key for reducing severity required initiate chemical natural molecular mixtures. A complex including...