@article{MTMT:33607227,
	title = {Enhancement of Hydrophilicity of Nano-Pitted TiO2 Surface Using Phosphoric Acid Etching},
	url = {https://m2.mtmt.hu/api/publication/33607227},
	author = {Koppány, Ferenc and Csomó, Krisztián Benedek and Varmuzsa, Edvárd Márton and Bognár, Eszter and Pelyhe, Liza and Nagy, Péter and Kientzl, Imre and Szabó, Dániel and Weszl, Miklós and Dobos, Gábor and Lenk, Sándor and Erdei, Gábor and Kiss, Gábor and Nagy, Lilien and Sréter, Attila and Belik, Andrea and Tóth, Zsuzsanna and Vág, János and Joób-Fancsaly, Árpád and Németh, Zsolt},
	doi = {10.3390/nano13030511},
	journal-iso = {NANOMATERIALS-BASEL},
	journal = {NANOMATERIALS},
	volume = {13},
	unique-id = {33607227},
	abstract = {Our research group developed a novel nano-pitted (NP) TiO2 surface on grade 2 titanium that showed good mechanical, osteogenic, and antibacterial properties; however, it showed weak hydrophilicity. Our objective was to develop a surface treatment method to enhance the hydrophilicity of the NP TiO2 surface without the destruction of the nano-topography. The effects of dilute and concentrated orthophosphoric (H3PO4) and nitric acids were investigated on wettability using contact angle measurement. Optical profilometry and atomic force microscopy were used for surface roughness measurement. The chemical composition of the TiO2 surface and the oxidation state of Ti was investigated using X-ray photoelectron spectroscopy. The ccH3PO4 treatment significantly increased the wettability of the NP TiO2 surfaces (30°) compared to the untreated control (88°). The quantity of the absorbed phosphorus significantly increased following ccH3PO4 treatment compared to the control and caused the oxidation state of titanium to decrease (Ti4+ → Ti3+). Owing to its simplicity and robustness the presented surface treatment method may be utilized in the industrial-scale manufacturing of titanium implants.},
	year = {2023},
	eissn = {2079-4991},
	orcid-numbers = {Koppány, Ferenc/0000-0001-9689-3605; Csomó, Krisztián Benedek/0000-0002-3749-6391; Weszl, Miklós/0000-0001-8000-4367; Lenk, Sándor/0000-0002-7207-0329; Erdei, Gábor/0000-0003-1584-3142; Belik, Andrea/0000-0002-8146-2009; Tóth, Zsuzsanna/0000-0001-7685-3681; Vág, János/0000-0002-6183-7598; Joób-Fancsaly, Árpád/0000-0001-7433-0078; Németh, Zsolt/0000-0002-0231-7437}
}

@article{MTMT:33189813,
	title = {Iodide Removal by Resorcinol-Formaldehyde Carbon Aerogels},
	url = {https://m2.mtmt.hu/api/publication/33189813},
	author = {Domán, Andrea and Battalgazy, B. and Dobos, Gábor and Kiss, Gábor and Tauanov, Z. and Nagyné László, Krisztina and Zorpas, A.A. and Inglezakis, V.J.},
	doi = {10.3390/ma15196885},
	journal-iso = {MATERIALS},
	journal = {MATERIALS},
	volume = {15},
	unique-id = {33189813},
	abstract = {The adsorption technique is widely used in water purification, and its efficiency can be significantly improved by target-specific adsorbent design. Research on iodine and its ion removal from water has attracted a great deal of interest due to increased concentrations in the environment and acute toxic effects, e.g., in human thyroid cells. In this work, the iodide removal performance of two high-surface-area resorcinol–formaldehyde-based carbon aerogels was studied under acidic conditions. The BET surface area was 790 m2/g (RF_ac) and 375 m2/g (RMF-GO), with a corresponding micropore ratio of 36 and 26%, respectively. Both aerogels showed outstanding adsorption capacity, exceeding the reported performance of other carbons and Ag-doped materials. Owing to its basic nature, the RMF-GO carbon aerogel showed higher I− capacity, up to 97 mg/g, than the acidic RF_ac, which reached a capacity of 82 mg/g. The surface chemistry of the aerogels also played a distinct role in the removal. In terms of kinetics, RF_ac removed 60% of the iodide ions and RMF-GO 30% within 8 h. The removal kinetics was of the first order, with a half-life of 1.94 and 1.70 h, respectively.},
	keywords = {ADSORPTION; IODIDE; Carbon aerogels},
	year = {2022},
	eissn = {1996-1944},
	orcid-numbers = {Domán, Andrea/0000-0002-5762-5998; Nagyné László, Krisztina/0000-0003-4499-3983}
}

@article{MTMT:32080023,
	title = {Biomass Related Highly Porous Metal Free Carbon for Gas Storage and Electrocatalytic Applications},
	url = {https://m2.mtmt.hu/api/publication/32080023},
	author = {Samaniego Andrade, Samantha Kathiuska and Bakos, István and Dobos, Gábor and Farkas, Attila and Kiss, Gábor and Klébert, Szilvia and Madarász, János and Nagyné László, Krisztina},
	doi = {10.3390/ma14133488},
	journal-iso = {MATERIALS},
	journal = {MATERIALS},
	volume = {14},
	unique-id = {32080023},
	year = {2021},
	eissn = {1996-1944},
	orcid-numbers = {Farkas, Attila/0000-0002-8877-2587; Klébert, Szilvia/0000-0002-3107-3371; Nagyné László, Krisztina/0000-0003-4499-3983}
}

@article{MTMT:3216919,
	title = {Continuous time of flight measurements in a Lissajous configuration},
	url = {https://m2.mtmt.hu/api/publication/3216919},
	author = {Dobos, Gábor and Hárs, György},
	doi = {10.1063/1.4971305},
	journal-iso = {REV SCI INSTRUM},
	journal = {REVIEW OF SCIENTIFIC INSTRUMENTS},
	volume = {88},
	unique-id = {3216919},
	issn = {0034-6748},
	abstract = {Short pulses used by traditional time-of-flight mass spectrometers limit their duty cycle, pose space-charge issues, and require high speed detectors and electronics. The motivation behind the invention of continuous time of flight mass spectrometers was to mitigate these problems, by increasing the number of ions reaching the detector and eliminating the need for fast data acquisition systems. The most crucial components of these spectrometers are their modulators: they determine both the maximal modulation frequency and the modulation depth. Through these parameters they limit the achievable mass resolution and signal-to-noise ratio. In this paper, a new kind of setup is presented which modulates the beam by deflecting it in two perpendicular directions and collects ions on a position sensitive detector. Such an Lissajous time of flight spectrometer achieves modulation without the use of slits or apertures, making it possible for all ions to reach the detector, thereby increasing the transmission and signal-to-noise ratio. In this paper, we provide the mathematical description of the system, discuss its properties, and present a practical demonstration of the principle. Published by AIP Publishing.},
	keywords = {TOF MASS-SPECTROMETER},
	year = {2017},
	eissn = {1089-7623}
}

@article{MTMT:3123346,
	title = {Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms},
	url = {https://m2.mtmt.hu/api/publication/3123346},
	author = {Velasco, LF and Guillet-Nicolas, R and Dobos, Gábor and Thommes, M and Lodewyckx, P},
	doi = {10.1016/j.carbon.2015.10.017},
	journal-iso = {CARBON},
	journal = {CARBON},
	volume = {96},
	unique-id = {3123346},
	issn = {0008-6223},
	abstract = {The occurrence of water sorption hysteresis associated with the filling of micro and narrow mesopores (particularly for pores of widths smaller than ca. 3 nm, where nitrogen and argon isotherms at their boiling temperatures, i.e. 77 K and 87 K, respectively, are known to be reversible) provides additional opportunities for textural characterization. In this work systematic water scanning desorption isotherms within the hysteresis loop were carried out on well-characterized activated carbons with varied textural features and surface chemistry. Accurate micro-mesopore analysis was obtained by means of nitrogen, argon and carbon dioxide adsorption experiments coupled with advanced density functional theory methods (i.e., NLDFT, QSDFT). The obtained results indicated that water adsorption/desorption phenomena for pores of different sizes take place independently from each other. This investigation constitutes a starting point for the interpretation of water adsorption hysteresis by means of scanning desorption measurements. (C) 2015 Elsevier Ltd. All rights reserved.},
	keywords = {VAPOR; Micropores; CO2; Mesoporous carbons},
	year = {2016},
	eissn = {1873-3891},
	pages = {753-758}
}

@inproceedings{MTMT:2834577,
	title = {Examination of the surface phosphorus content of anodized medical grade titanium samples},
	url = {https://m2.mtmt.hu/api/publication/2834577},
	author = {Katona, Bálint and Dobos, Gábor and Kiss, Gábor},
	booktitle = {Materials Science, Testing and Informatics VII},
	doi = {10.4028/www.scientific.net/MSF.812.339},
	unique-id = {2834577},
	year = {2015},
	pages = {339-344}
}

@article{MTMT:2760561,
	title = {Catalytic performance of carbon nanotubes in H2O2 decomposition: experimental and quantum chemical study},
	url = {https://m2.mtmt.hu/api/publication/2760561},
	author = {K, Voitko and Tóth, Ajna and E, Demianenko and Dobos, Gábor and Berke, Barbara and O, Bakalinska and A, Grebenyuk and Csákiné Tombácz, Etelka and V, Kuts and Y, Tarasenko and M, Kartel and Nagyné László, Krisztina},
	doi = {10.1016/j.jcis.2014.09.045},
	journal-iso = {J COLLOID INTERF SCI},
	journal = {JOURNAL OF COLLOID AND INTERFACE SCIENCE},
	volume = {437},
	unique-id = {2760561},
	issn = {0021-9797},
	year = {2015},
	eissn = {1095-7103},
	pages = {283-290},
	orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Nagyné László, Krisztina/0000-0003-4499-3983}
}

@article{MTMT:2551650,
	title = {Hydroconversion of acetic acid over carbon aerogel supported molybdenum catalyst},
	url = {https://m2.mtmt.hu/api/publication/2551650},
	author = {Ábrahám, Dániel János and Nagy, Balázs and Dobos, Gábor and Madarász, János and Onyestyák, György and Trenikhin, MV and Nagyné László, Krisztina},
	doi = {10.1016/j.micromeso.2014.01.021},
	journal-iso = {MICROPOR MESOPOR MAT},
	journal = {MICROPOROUS AND MESOPOROUS MATERIALS},
	volume = {190},
	unique-id = {2551650},
	issn = {1387-1811},
	abstract = {High surface area carbon aerogels with increasing molybdenum content were obtained by carbonization of resorcinol-formaldehyde polymer aerogels after incipient wetness impregnation (IWI). The Mo(VI) form of the impregnant was converted into different molybdenum species during the heat treatment, resulting in samples with substantially different surface and bulk compositions. The samples were tested in the hydroconversion reaction of acetic acid, a model biomass. The reaction pathways and the product distribution were governed by the accessibility of the carbon surface as well as by the amount and form of Mo. The highest selectivity for ethanol was 16%, when 85% of the acetic acid was converted. Post-catalyst analysis of the aerogels revealed that their morphology and chemistry changed substantially during the redox processes. The products of each of the three potential pathways (hydrogenolysis, ketonization and consecutive reduction) oxidized the surface even in the reductive hydrogen flow. © 2014 Elsevier Inc. All rights reserved.},
	keywords = {CATALYSIS; XPS; molybdenum; BIOMASS CONVERSION; Porous carbon support},
	year = {2014},
	eissn = {1873-3093},
	pages = {46-53},
	orcid-numbers = {Nagyné László, Krisztina/0000-0003-4499-3983}
}

@article{MTMT:2446453,
	title = {Molybdenum doped carbon aerogels with catalytic potential},
	url = {https://m2.mtmt.hu/api/publication/2446453},
	author = {Nagy, Balázs and Ábrahám, Dániel János and Dobos, Gábor and Madarász, János and Onyestyák, György and Sáfrán, György and Geissler, E and Nagyné László, Krisztina},
	doi = {10.1016/j.carbon.2013.08.060},
	journal-iso = {CARBON},
	journal = {CARBON},
	volume = {66},
	unique-id = {2446453},
	issn = {0008-6223},
	abstract = {Mo-doped carbon aerogels were obtained in the polycondensation reaction of aqueous resorcinol and formaldehyde by adding Mo-salt at two different stages of the synthesis: (i) to the initial sol; (ii) by incipient wetting impregnation of the supercritically dried polymer gel. Molybdenum added during the polymerization yielded a more compact gel structure with practically no mesoporosity. With post-impregnation, by contrast, mesopores of diameter 3-15 nm were generated. Carbonization appreciably enhanced the microporous character of both samples, but in the mesopore range their pore size distribution was conserved. The Mo-content of the samples was also different: Mo was lost during the solvent exchange before the supercritical drying (i.e., the Mo failed to bind chemically to the polymer matrix). The residual Mo congregated into 25-60 nm bulk clusters of α-Mo2C. In the other carbon aerogel, finely dispersed α-Mo2C and η-Mo3C2 crystals formed, of size 8-20 nm. On the surface of both carbons the Mo formed oxides. In the model test reaction (acetic acid hydroconversion) the catalytic activity of both carbon aerogels was enhanced by molybdenum. The more open pore structure, higher concentration and finer Mo distribution, as well as its chemical form, may all be responsible for the greater conversion and higher value products obtained with the post-impregnated sample. © 2013 Elsevier Ltd. All rights reserved.},
	year = {2014},
	eissn = {1873-3891},
	pages = {210-218},
	orcid-numbers = {Sáfrán, György/0000-0003-3708-3551; Nagyné László, Krisztina/0000-0003-4499-3983}
}

@article{MTMT:2693739,
	title = {Novel instrument and method for the investigation of small permeation fluxes of gases through different membranes},
	url = {https://m2.mtmt.hu/api/publication/2693739},
	author = {Sebők, Béla and Kiss, Gábor and Dobos, Gábor and Réti, Ferenc and Majoros, Tamás and Homokiné Krafcsik, Olga},
	doi = {10.1016/j.measurement.2013.06.048},
	journal-iso = {MEASUREMENT},
	journal = {MEASUREMENT},
	volume = {46},
	unique-id = {2693739},
	issn = {0263-2241},
	keywords = {doktori iskola: Fizikai Tudományok},
	year = {2013},
	eissn = {1873-412X},
	pages = {3516-3524}
}