Results 51 to 60 of about 521,383 (205)

Feasibility Study of an Iron-Based Composite Added with Al₂O₃/ZrO₂ as an Oxygen Carrier in the Chemical Looping Applications

Crystals, 2021
The chemical looping process is a promising approach for carbon capture. Oxygen carriers play the crucial role of carrying oxygen between oxidation and reduction reactors.
Ching-Ti Kao, Cheng-Hsien Shen, Heng-Wen Hsu   +2 more
doaj   +1 more source

Improving CO₂ Capture Efficiency Through Novel CLOU-Based Fuel Reactor Configuration in Chemical Looping Combustion

Energies
Climate change and global decarbonization targets drive the search for more efficient and cost-effective combustion technologies. Chemical looping combustion (CLC) using solid oxygen carriers with chemical looping with oxygen uncoupling (CLOU ...
Anna Zylka, Jaroslaw Krzywanski, Tomasz Czakiert, Marcin Sosnowski, Karolina Grabowska, Dorian Skrobek, Lukasz Lasek   +6 more
doaj   +1 more source

High-Quality Syngas Production by Chemical Looping Gasification of Bituminite Based on NiFe₂O₄ Oxygen Carrier

Energies, 2023
Chemical looping gasification (CLG) is an effective coal utilization technology. In this work, the CLG of bituminite was investigated through fixed-bed batch experiments using NiFe2O4 oxygen carrier (OC) to achieve high-quality syngas. The changes in the
Ming Yang, Da Song, Yang Li, Jinzeng Cao, Guoqiang Wei, Fang He   +5 more
doaj   +1 more source

Observation of the quantum Hall effect in epitaxial graphene on SiC(0001) with oxygen adsorption

, 2012
In this letter we report on transport measurements of epitaxial graphene on SiC(0001) with oxygen adsorption. In a $50\times 50 \mu\mathrm{m^2}$ size Hall bar we observe the half-integer quantum Hall effect with a transverse resistance plateau quantized ...
Kazazis, D., Mailly, D., Mathieu, C., Ouerghi, A., Pallecchi, E., Poirier, W., Ridene, M., Schopfer, F.   +7 more
core   +1 more source

Lattice-Spin Mechanism in Colossal Magnetoresistant Manganites [PDF]

, 2002
We present a single-orbital double-exchange model, coupled with cooperative phonons (the so called breathing-modes of the oxygen octahedra in manganites). The model is studied with Monte Carlo simulations.
Brey, L., Martin-Mayor, V., Verges, J. A.   +2 more
core   +4 more sources

High-efficiency device research [PDF]

, 1985
Progress on research in high-efficiency silicon solar cells is presented. Topics addressed include: recombination measurement techniques, doped crystals, minority carrier transport, oxygen process in solar cells, solar cell models, loss mechanics in ...
Burger, D. R.
core   +1 more source

Reversible carrier-type transition in gas-sensing oxides and nanostructures

, 2010
Despite many important applications of a-Fe2O3 and Fe doped SnO2 in semiconductors, catalysis, sensors, clinical diagnosis and treatments, one fundamental issue that is crucial to these applications remains theoretically equivocal- the reversible carrier-
Arulsamy, Andrew Das, Cvelbar, Uros, Elersic, Kristina, Modic, Martina, Mozetic, Miran   +4 more
core   +1 more source

D1.2 Oxygen carriers characterization

, 2022
After having prepared the 6 oxygen carriers presented in the Deliverable D1.1, in this deliverable we present their characterization.
Bartocci, Pietro, Abad, Alberto, Cabello, Arturo, Mandiara, Teresa, De Las Obras Loscertales, Margarita   +4 more
openaire   +2 more sources

Fantastic Behavior of High-TC Superconductor Junctions: Tunable Superconductivity

, 2009
Carrier injection performed in oxygen-deficient YBa2Cu3O7(YBCO) hetero-structure junctions exhibited tunable resistance that was entirely different with behaviors of semiconductor devices. Tunable superconductivity in YBCO junctions, increasing over 20 K
Chen Yuan-Sha, Lian Gui-Jun, Malozemoff A P, Xiong G C, Xiong Guang-Cheng, Zhang Yan   +5 more
core   +1 more source

Controlling the Electrical Properties of Undoped and Ta-doped TiO2 Polycrystalline Films via Ultra-Fast Annealing Treatments [PDF]

, 2015
We present a study on the crystallization process of undoped and Ta doped TiO2 amorphous thin films. In particular, the effect of ultra-fast annealing treatments in environments characterized by different oxygen concentrations is investigated via in-situ
Concina, Deák, Deák, Ellmer, Engel, Furubayashi, Ghosh, Hagfeldt, Hitosugi, Hoang, Hoang, Huy, Juarez-Perez, Kirchartz, Knauth, Lee, Lee, Lee, Leichtweiss, Liu, Lü, Mazzolini, O'Regan, Ok, Okazaki, Park, Park, Park, Pore, Robertson, Rusydi, Setvin, Shi, Snaith, Tang, Tang, Wang, Weibel, Weng, Yamada, Yamamoto, Yang, Zhang   +42 more
core   +2 more sources