Asanka Wijerathne

ORCID: 0000-0003-1339-7812
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Zeolite Catalysis and Synthesis
  • Nanomaterials for catalytic reactions
  • Extraction and Separation Processes
  • Metal-Organic Frameworks: Synthesis and Applications
  • Catalysis and Hydrodesulfurization Studies
  • Metal Extraction and Bioleaching

University of Virginia
2022-2024

A key challenge for metal-exchanged zeolites is the determination of metal cation speciation and nuclearity under synthesis reaction conditions. Copper-exchanged zeolites, which are widely used in automotive emissions control potential catalysts partial methane oxidation, have particular evidenced a wide variety Cu structures that observed to change with exposure conditions, zeolite composition, topology. Here, we develop predictive models CHA, MOR, BEA, AFX, FER topologies using interatomic...

10.1021/jacsau.3c00632 article EN cc-by-nc-nd JACS Au 2024-01-04

Palladium cations and nanoparticles supported on oxides zeolites are used as catalysts adsorbents for a wide range of chemical reactions practical importance, with various distinct active site requirements. Consequently, sintering redispersion processes that interconvert site-isolated Pd agglomerated underpin catalyst activation deactivation phenomena, yet the influence nanoparticle size distribution gas conditions thermodynamic kinetic factors influencing such interconversion is imprecisely...

10.1021/acs.jpcc.2c01613 article EN The Journal of Physical Chemistry C 2022-05-10
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