Kevin M. Siniard

ORCID: 0000-0003-0241-9705
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Nanomaterials for catalytic reactions
  • Carbon Dioxide Capture Technologies
  • Industrial Gas Emission Control
  • Laser-Ablation Synthesis of Nanoparticles
  • Polyoxometalates: Synthesis and Applications
  • Covalent Organic Framework Applications
  • Advanced materials and composites
  • Advanced Photocatalysis Techniques
  • Nanocluster Synthesis and Applications
  • High Entropy Alloys Studies
  • Asymmetric Hydrogenation and Catalysis
  • Metal-Organic Frameworks: Synthesis and Applications
  • Electronic and Structural Properties of Oxides
  • Electrocatalysts for Energy Conversion
  • Phase Equilibria and Thermodynamics
  • Catalysis and Hydrodesulfurization Studies
  • Catalysis and Oxidation Reactions
  • Electrochemical Analysis and Applications
  • High-Temperature Coating Behaviors
  • Membrane Separation and Gas Transport

University of Tennessee at Knoxville
2022-2025

The development of facile methodologies to afford robust supported metal nanocatalysts under mild conditions is highly desirable yet challenging, particularly via strong metal-support interactions (SMSI) construction. State-of-the-art approaches capable generating SMSI encapsulation mainly focus on high temperature annealing in reductive/oxidative atmosphere. Herein, ultra-stable based construction were produced by leveraging the instantaneous high-energy input from ultrasonication ambient...

10.1002/anie.202214322 article EN Angewandte Chemie International Edition 2023-01-25

Direct air capture (DAC) of CO2 by solid porous materials represents an attractive "negative emission" technology. However, state-of-the-art sorbents based on supported amines still suffer from unsolved high energy consumption and stability issues. Herein, taking clues the interaction with superbase-derived ionic liquids (SILs), high-performance tunable in DAC was developed harnessing power CaO- SIL-engineered sorbents. Deploying mesoporous silica as substrate, a thin CaO layer first...

10.1002/cssc.202300808 article EN ChemSusChem 2023-06-20

Porous liquids have traditionally been designed with sterically hindered solvents. Alternatively, recent efforts rely on dispersing microporous frameworks in simpler solvents like water. Here we report a unique strategy to construct macroporous water by selectively incorporating hydrophilicity the surfaces of hydrophobic hollow carbon spheres (HCS). Specifically, show that stable dispersion surface ionized HCS while retaining inherent porosity. The electrocatalytic conversion small gas...

10.1021/jacs.4c13875 article EN Journal of the American Chemical Society 2025-01-09

High-entropy oxides (HEOs) are an emerging class of advanced ceramic materials capable stabilizing ultrasmall nanoparticle catalysts. However, their fabrication still relies on high-temperature thermal treatment methodologies affording nonporous architectures. Herein, we report a facile synthesis single-phase, fluorite-structured HEO nanocrystals via ultrasound-mediated co-precipitation strategy under ambient conditions. Within 15 min ultrasound exposure, high-quality (CeHfZrSnErOx) was...

10.1016/j.isci.2022.104214 article EN cc-by-nc-nd iScience 2022-04-06

The construction of strong metal–support interactions (SMSIs) represented an attractive approach to producing supported noble metal nanocatalysts possessing enhanced stability by overlayer encapsulation. development facile approaches capable achieving efficient, controllable, and extensive SMSI formation, particularly under neat ambient conditions, is a long-standing challenge. In this work, mechanochemistry-driven pathway was deployed for efficient controllable conditions customize the...

10.1021/acscatal.2c05730 article EN ACS Catalysis 2023-04-19

Abstract The development of facile methodologies to afford robust supported metal nanocatalysts under mild conditions is highly desirable yet challenging, particularly via strong metal‐support interactions (SMSI) construction. State‐of‐the‐art approaches capable generating SMSI encapsulation mainly focus on high temperature annealing in reductive/oxidative atmosphere. Herein, ultra‐stable based construction were produced by leveraging the instantaneous high‐energy input from ultrasonication...

10.1002/ange.202214322 article EN Angewandte Chemie 2023-01-25

A strong–metal support interaction construction was induced via ultrasonication in water as described by Zhenzhen Yang, Sheng Dai et al. their Communication (e202214322). The encapsulation degree of metal nanoparticles reducible oxide overlayers can be modulated the parameters. facile tunability offers enhanced activity and selectivity diverse catalytic hydrogenation applications. cover picture Andy Sproles illustrates ultrasound waves encircling supported to induce procedure....

10.1002/ange.202304741 article EN Angewandte Chemie 2023-04-18
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