A5102715075- Advancements in Solid Oxide Fuel Cells
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Thermal Expansion and Ionic Conductivity
- Electronic and Structural Properties of Oxides
- High-Temperature Coating Behaviors
- Carbon Dioxide Capture Technologies
- Nuclear materials and radiation effects
- Chemical Looping and Thermochemical Processes
- Advanced Battery Materials and Technologies
- Semiconductor materials and devices
- Nuclear Materials and Properties
- Rare-earth and actinide compounds
- Molten salt chemistry and electrochemical processes
- Hydrogen embrittlement and corrosion behaviors in metals
- Odor and Emission Control Technologies
- Superconductivity in MgB2 and Alloys
- Gas Sensing Nanomaterials and Sensors
- Ferroelectric and Piezoelectric Materials
- Environmental Toxicology and Ecotoxicology
- Perovskite Materials and Applications
- Adsorption and Cooling Systems
- Heavy metals in environment
- Conducting polymers and applications
Clean Energy (United States)
2012-2024
University of Connecticut
2015-2024
Lawrence Livermore National Laboratory
1994-2018
University of Johannesburg
2017
Ansys (United States)
2013
Hartford Financial Services (United States)
2013
Indian Institute of Technology Bombay
2006
Office of Scientific and Technical Information
2005
National Technical Information Service
2005
United States Department of Commerce
2005
Molten salts facilitate the reaction of CO2 with MgO by providing an alternate pathway to traditional gas-solid reactions. partially dissolve bulk and provide activated species accessible at gas-solid-liquid triple phase boundaries. This methodology is also applicable other basic metal oxides molten salts, inspiring design new absorbent systems.
Abstract Contractile behavior of cardiomyocytes relies on directed signal propagation through the electroconductive networks that exist within native myocardium. Due to their unique electrical properties, electroactive materials, such as graphene, have recently emerged promising candidate materials for cardiac tissue engineering applications. In this work, potential three‐dimensional (3D) nanofibrous graphene and poly(caprolactone) (PCL + G) composite scaffold has been explored first time....
Abstract Supercapacitors also known as electrochemical capacitors, that store energy via either Faradaic or non-Faradaic processes, have recently grown popularity mainly because they complement and can even replace, conventional storage systems in variety of applications. Supercapacitor performance be improved significantly by developing new nanocomposite electrodes which utilizes both the processes simultaneously. Here we report, fabrication freestanding hybrid electrodes, incorporating...
In this study, octamethylcyclotetrasiloxane (D4) was removed by using a novel modified solid adsorbent of mesoporous silica. The synthesized inverse micelles with some modifications in the synthesis process (temperature gelation) and post treatment conditions (calcination temperature heating rate) concomitant improvement D4 uptake. This is first report on regulating textural properties silica material UCT-14 to develop an active adsorbent. These adjustments resulted increase surface area...
Green hydrogen is essential to achieving carbon neutrality, and solid oxide electrolysis cells can produce using renewable power waste heat. Insufficient long-term durability of has impeded their commercialization. Here, coatings in the porous stainless steel support metal-supported (MS-SOECs) are used dramatically improve performance durability. The degradation rate uncoated MS-SOECs highly dependent on current density, with fastest occurring at highest density tested, 0.5 A cm–2. At this...
In the system La – Cr O , there are three ternary oxides ( LaCrO 4 2 3 12 and CrO 6 ) that contain in higher valence states (V or VI). On heating, decomposes to a mixture of with loss oxygen. The oxygen potentials corresponding these decomposition reactions determined as function temperature using solid‐state cells incorporating yttria‐stabilized zirconia electrolyte. Measurements made from 840 K pure standard Gibbs energies formation derived reversible electromotive force EMF cells....
Chromium evaporation, from chromia forming ferritic alloys used in the interconnect (IC) and low cost iron nickel base alloys, is considered as one of leading causes for long term irreversible performance degradation cathode SOFC power generation systems. Although, surface coatings alloy modifications have proved beneficial providing short solution mitigation chromium poisoning, chemistries remain susceptible to structural term. A novel approach mitigating by capturing gas phase vapor air...
We study the effects of relativity on stability group II elements Zn, Cd, and Hg in face centered cubic (fcc) hexagonal close-packed (hcp) structures. A comparison nonrelativistic scalar-relativistic results for both fcc hcp phases these elements, obtained self consistently, clearly shows that change most stable crystal structure from to fcc-like rhombohedral, as one goes form Zn Hg, is due relativity. The different structures explained terms increase s-p hybridization resulting
The phase transformation and particle coarsening of lithium aluminate (α-LiAlO2) in electrolyte are the major causes degradation affecting performance lifetime molten carbonate fuel cell (MCFC). stability LiAlO2 has been studied Li2CO3-Na2CO3 under accelerated conditions reducing oxidizing gas atmospheres at temperatures 650 750 for up to 500 hours. X-ray diffraction analyses show that progressive α-LiAlO2 γ-LiAlO2 proceeds with increasing temperature lower PCO2 PO2 environments. Spherical...
Presented are new measurements of the standard Gibbs free energy formation rhombohedral LaCrO 3 from component oxides La 2 O and Cr in temperature range 875 to 1175 K, using a bielectrolyte solid‐state cell incorporating single crystal CaF composition‐graded solid electrolyte ( LaF ) y ·( 1− = 0–0.32). The results can be represented analytically as (±2270)/J·mol −1 −72329 + 4.932 T /K). were undertaken resolve serious discrepancies data reported literature. A critical analysis previous...
First-principles, density-functional-based electronic structure calculations are employed to study the changes in properties of ZnCyNi3 and MgCyNi3 using Korringa–Kohn–Rostoker coherent-potential approximation method atomic sphere (KKR-ASA CPA). As a function decreasing C percentage, we find steady decrease lattice constant bulk modulus both alloys. However, pressure derivative displays an opposite trend. Following Debye model, which relates average phonon frequency crystal, it can thus be...
We have investigated the role of manganese oxide on crystallographic and morphological modifications cubic 8 mol. % yttria stabilized zirconia (YSZ). X-ray diffraction studies indicate that dissolution leads to partial transformation YSZ into tetragonal polymorph along with contraction unit cell. Evolution an undulated surface 2–15 nm roughness has been observed using electron atomic force microscopies.