Calvin R. Thomas

ORCID: 0000-0002-0608-3025
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About
Contact & Profiles
Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Advanced Combustion Engine Technologies
  • Industrial Gas Emission Control
  • Electrocatalysts for Energy Conversion
  • Catalysts for Methane Reforming
  • TiO2 Photocatalysis and Solar Cells
  • Vehicle emissions and performance
  • Glaucoma and retinal disorders
  • Surface Chemistry and Catalysis
  • Catalysis and Hydrodesulfurization Studies
  • Corneal Surgery and Treatments
  • Biodiesel Production and Applications
  • Advanced Photocatalysis Techniques
  • Nanomaterials for catalytic reactions
  • Ocular Surface and Contact Lens
  • Asymmetric Hydrogenation and Catalysis
  • Atmospheric chemistry and aerosols
  • Mesoporous Materials and Catalysis

National Transportation Research Center
2023

Oak Ridge National Laboratory
2020-2023

Government of the United States of America
2023

Auburn University
2013

Landesanstalt für Umwelt Baden-Württemberg
2010

Passive SCR systems, which employ both a three-way catalyst and catalyst, are effective for the reduction of nitrogen oxide (NOx) emissions from lean burn gasoline engines. However, questions remain regarding effect formulations on their performance in these systems. Here, Pd/CeOx/Al2O3 catalysts with variable CeOx loading were synthesized, characterized, evaluated to determine effects performance. While small amount ceria was beneficial promoting essential reactions, excess detrimental due...

10.1016/j.catcom.2021.106308 article EN cc-by-nc-nd Catalysis Communications 2021-03-25

A three-way catalyst (TWC) and a TWC with NOx storage component (NS-TWC) were evaluated on lean spark ignition (SI) engine platform to reduce the fuel consumption emissions of passive selective catalytic reduction (pSCR) emission control system. The pSCR system is an approach for controlling from SI engines. It relies onboard NH3 generation over during brief periods fuel-rich operation. then stored downstream SCR available subsequent NS-TWC addition enabled longer operation more efficient...

10.1016/j.jaecs.2023.100150 article EN cc-by Applications in Energy and Combustion Science 2023-05-26

More efficient lean-burn, natural gas engines are limited by greenhouse emissions due to methane oxidation catalysts (MOC) that suffer from water inhibition and high temperature activation. Herein, we report the addition of Mg supported 1wt.% Pd MOCs improved hydrothermal stability even after severe aging. The superior activity compared corresponding Mg-free catalyst was attributed (1) influence during surface roughening restructuring at 700 °C on metal-support interaction, (2) reducibility...

10.2139/ssrn.4463481 preprint EN 2023-01-01
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