Search Results - "Kollár, Márton"
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1
Effects of Alkali and Alkaline Earth Cocations on the Activity and Hydrothermal Stability of Cu/SSZ-13 NH3–SCR Catalysts
Published in ACS catalysis (06-11-2015)“…Using a three-step aqueous solution ion-exchange method, cocation modified Cu/SSZ-13 SCR catalysts were synthesized. These catalysts, in both fresh and…”
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2
Effects of Si/Al ratio on Cu/SSZ-13 NH3-SCR catalysts: Implications for the active Cu species and the roles of Brønsted acidity
Published in Journal of catalysis (01-11-2015)“…[Display omitted] •Cu2+ ion locations and redox properties are systemically tuned by varying Si/Al and Cu/Al ratios.•H2-TPR allows semi-quantification of all…”
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3
Ultrasensitive 3D Aerosol-Jet-Printed Perovskite X‑ray Photodetector
Published in ACS nano (23-03-2021)“…X-ray photon detection is important for a wide range of applications. The highest demand, however, comes from medical imaging, which requires cost-effective,…”
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4
Mahan excitons in room-temperature methylammonium lead bromide perovskites
Published in Nature communications (12-02-2020)“…In a seminal paper, Mahan predicted that excitonic bound states can still exist in a semiconductor at electron-hole densities above the insulator-to-metal Mott…”
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5
NO Chemisorption on Cu/SSZ-13: A Comparative Study from Infrared Spectroscopy and DFT Calculations
Published in ACS catalysis (07-11-2014)“…The locations and energies of Cu ions in a Cu/SSZ-13 zeolite catalyst were investigated by density functional theory (DFT) calculations. For “naked” Cu2+ ions…”
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6
Fe/SSZ-13 as an NH3-SCR catalyst: A reaction kinetics and FTIR/Mössbauer spectroscopic study
Published in Applied catalysis. B, Environmental (01-03-2015)“…•Fe/SSZ-13 catalysts highly active in NH3-SCR synthesized from solution ion exchange.•Chabazite structure maintains during severe hydrothermal aging.•Fe stays…”
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7
A comparative kinetics study between Cu/SSZ-13 and Fe/SSZ-13 SCR catalysts
Published in Catalysis today (01-12-2015)“…•Cu/SSZ-13 gains oxidation activity after aging while the opposite is found for Fe/SSZ-13.•Mixed Cu/SSZ-13 and Fe/SSZ-13 provide more stable performance in…”
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8
Hybrid halide perovskite neutron detectors
Published in Scientific reports (30-08-2021)“…Interest in fast and easy detection of high-energy radiation (x-, γ-rays and neutrons) is closely related to numerous practical applications ranging from…”
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9
Light-Emitting Electrochemical Cells of Single Crystal Hybrid Halide Perovskite with Vertically Aligned Carbon Nanotubes Contacts
Published in ACS photonics (17-04-2019)“…Based on the reported ion migration under an electric field in hybrid lead halide perovskites we have developed a bright, light-emitting electrochemical cell…”
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10
Radiation detection and energy conversion in nuclear reactor environments by hybrid photovoltaic perovskites
Published in Energy conversion and management (01-02-2020)“…•Hybrid Halide Perovskites were irradiated in nuclear reactor to harvest energy.•2.2% efficiency and 0.3 mW/kg power density was measured in gamma…”
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11
“Forbidden” Polarisation and Extraordinary Piezoelectric Effect in Organometallic Lead Halide Perovskites
Published in Advanced functional materials (01-10-2022)“…Organometallic lead halide perovskites are highly efficient materials for solar cells and other optoelectronic applications due to their high quantum…”
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12
Three-Dimensionally Enlarged Photoelectrodes by a Protogenetic Inclusion of Vertically Aligned Carbon Nanotubes into CH3NH3PbBr3 Single Crystals
Published in Journal of physical chemistry. C (29-06-2017)“…We demonstrate that single crystals of methylammonium lead bromide (MAPbBr3) could be grown directly on vertically aligned carbon nanotube (VACNT) forests. The…”
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13
Kilogram‐Scale Crystallogenesis of Halide Perovskites for Gamma‐Rays Dose Rate Measurements
Published in Advanced science (01-01-2021)“…Gamma‐rays (γ‐rays), wherever present, e.g., in medicine, nuclear environment, or homeland security, due to their strong impact on biological matter, should be…”
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14
Ultralong Charge Carrier Recombination Time in Methylammonium Lead Halide Perovskites
Published in ACS photonics (19-10-2022)“…Due to their exceptional photovoltaic properties, metal halide perovskites (MHPs) are extensively studied for their potential applications in solar cells. In…”
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15
Morphology and Photoluminescence of CH3NH3PbI3 Deposits on Nonplanar, Strongly Curved Substrates
Published in ACS photonics (18-04-2018)“…Organic–inorganic metal halide perovskites have recently attracted increasing attention as highly efficient light harvesting materials for photovoltaic…”
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16
Clean, cleaved surfaces of the photovoltaic perovskite
Published in Scientific reports (06-04-2017)“…The surface of a material is not only a window into its bulk physical properties, but also hosts unique phenomena important for understanding the properties of…”
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17
Hydrothermal Aging Effects on Fe/SSZ-13 and Fe/Beta NH3–SCR Catalysts
Published in Topics in catalysis (01-07-2016)“…Fe/SSZ-13 and Fe/beta catalysts with similar Fe loading and Si/Al ratios were prepared via solution ion-exchange under N 2 . These catalysts, in both freshly…”
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18
Competitive ion-exchange of manganese and gadolinium in titanate nanotubes
Published in Catalysis today (15-04-2017)“…[Display omitted] •Homogeneously Mn2+ and Gd3+ co-doped trititanate nanotubes are synthesized.•Ion-exchange competition of dopants reveals weak interaction and…”
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19
Millisecond‐Scale Charge‐Carrier Recombination Dynamics in the CsPbBr3 Perovskite
Published in Advanced energy and sustainability research (01-09-2024)“…Understanding the recombination lifetime of charge carriers (τc$\left(\tau\right)_{\text{c}}$) is essential for the diverse applications of photovoltaic…”
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20
Fast Lead-Free Humidity Sensor Based on Hybrid Halide Perovskite
Published in Crystals (Basel) (01-04-2022)“…An environmentally friendly analog of the prominent methylammonium lead halide perovskite, methylammonium bismuth bromide (MA3Bi2Br9), was prepared and…”
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