@article{MTMT:31333258, title = {Hydrothermal Synthesis and Gas Sensing of Monoclinic MoO3 Nanosheets}, url = {https://m2.mtmt.hu/api/publication/31333258}, author = {Nagyné Kovács, Teodóra and Studnicka, L and Lukács, István Endre and Nagyné László, Krisztina and Pasierb, P and Szilágyi, Imre Miklós and Pokol, György}, doi = {10.3390/nano10050891}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {10}, unique-id = {31333258}, year = {2020}, eissn = {2079-4991}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Nagyné László, Krisztina/0000-0003-4499-3983; Pokol, György/0000-0003-1597-9808} } @article{MTMT:31042183, title = {Effect of pH in the hydrothermal preparation of monoclinic tungsten oxide}, url = {https://m2.mtmt.hu/api/publication/31042183}, author = {Nagyné Kovács, Teodóra and Lukács, István Endre and Szabó, Anna and Hernádi, Klára and Igricz, T. and Nagyné László, Krisztina and Szilágyi, Imre Miklós and Pokol, G.}, doi = {10.1016/j.jssc.2019.121044}, journal-iso = {J SOLID STATE CHEM}, journal = {JOURNAL OF SOLID STATE CHEMISTRY}, volume = {281}, unique-id = {31042183}, issn = {0022-4596}, abstract = {This paper presents the preparation of monoclinic WO3 by a one-step hydrothermal method. The effect of very acidic pH (0.1) and the significance of various additives (CH3COOH, NaClO4, Na2SO4) were investigated. To clarify the role of pH on the obtained crystal structure and morphology, every synthesis using pH 1 were repeated, and the effect of temperature, using 180 and 200 °C, was also studied. All samples prepared at pH 0.1 were pure, well crystallized monoclinic WO3 independently from the temperature, the presence and the quality of the additives. At 180 and 200 °C, applying CH3COOH and NaClO4 resulted nanosheets similar in size. With Na2SO4 additive at 180 °C sheets, at 200 °C sheets and also rods formed indicating that SO4 2− was a capping agent only at 200 °C. For comparison, at pH 1 at both temperatures the crystalline phases and the morphologies varied depending on the type of the additive. © 2019 The Authors}, keywords = {PH; PH; SULFUR COMPOUNDS; MORPHOLOGY; MORPHOLOGY; crystal structure; ADDITIVES; pH effects; Energy gap; Chlorine compounds; sodium sulfate; Hydrothermal; Hydrothermal; Crystalline phasis; Tungsten compounds; Effect of temperature; Hydrothermal methods; Tungsten oxide; MONOCLINIC WO3; MONOCLINIC WO3; band gap; Crystal structure and morphology; Hydrothermal preparation}, year = {2020}, eissn = {1095-726X}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Hernádi, Klára/0000-0001-9419-689X; Nagyné László, Krisztina/0000-0003-4499-3983} } @mastersthesis{MTMT:31148499, title = {Hidrotermális úton előállított volfrám-oxid, volframát és molibdén-oxid nanoszerkezetek}, url = {https://m2.mtmt.hu/api/publication/31148499}, author = {Nagyné Kovács, Teodóra}, publisher = {Budapest University of Technology and Economics}, unique-id = {31148499}, year = {2019} } @article{MTMT:30728047, title = {Detecting Silver in Silver-Enabled Textiles by a Newly-Developed Portable Device}, url = {https://m2.mtmt.hu/api/publication/30728047}, author = {Dudás, Tünde and Nagyné Kovács, Teodóra and Szilágyi, Imre Miklós and Mester, Ferenc}, doi = {10.14504/ajr.6.4.4}, journal-iso = {AATCC J RES}, journal = {AATCC JOURNAL OF RESEARCH}, volume = {6}, unique-id = {30728047}, issn = {2472-3444}, year = {2019}, eissn = {2330-5517}, pages = {22-29} } @article{MTMT:30705327, title = {Effect of pH in the Hydrothermal Preparation of Bi2WO6 Nanostructures}, url = {https://m2.mtmt.hu/api/publication/30705327}, author = {Nagyné Kovács, Teodóra and Shahnazarova, Gubakhanim and Lukács, István Endre and Szabó, Anna and Hernádi, Klára and Igricz, Tamás and Nagyné László, Krisztina and Szilágyi, Imre Miklós and Pokol, György}, doi = {10.3390/ma12111728}, journal-iso = {MATERIALS}, journal = {MATERIALS}, volume = {12}, unique-id = {30705327}, year = {2019}, eissn = {1996-1944}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Hernádi, Klára/0000-0001-9419-689X; Nagyné László, Krisztina/0000-0003-4499-3983} } @article{MTMT:30370760, title = {Effect of Different Anions Upon the WO3 Morphology and Structure}, url = {https://m2.mtmt.hu/api/publication/30370760}, author = {Nagyné Kovács, Teodóra and Malik, Adrienn and Szenkovits, Arshak and Lukács, István Endre and Szilágyi, Imre Miklós and Pokol, György}, doi = {10.1166/jnn.2019.15790}, journal-iso = {J NANOSCI NANOTECHNO}, journal = {JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY}, volume = {19}, unique-id = {30370760}, issn = {1533-4880}, abstract = {In this study the effects of various anions (SO42-, ClO4- and PO43-) were investigated on the hydrothermal treatment of WO3 from Na2WO4 and HCl at 180 and 200 degrees C. The products were analyzed by XRD and SEM. With the usage of SO42- the obtained product was hexagonal (h-) WO3 in the form of nanorods at both temperatures. Applying ClO4- resulted in a mixture of WO3 center dot 0.33H(2)O and small amount of m-WO3 at 180 degrees C and pure WO3 center dot 0.33H(2)O at 200 degrees C. The morphology was consisted of cuboid shapes arranged into spherical structures at 180 degrees C and longitudinal ones at 200 degrees C. By the application of PO43- no product formed at either temperature. Using the combination of SO42-, and ClO4- the product was h-WO3 at both 180 and 200 degrees C with rod-like crystals; thus, the effect of ClO4- was overdominated by the SO42- ions. Utilization of PO43- together with SO42-, and/or ClO4- resulted again in no product, meaning that adding PO43- to the reaction mixture completely blocks the hydrothermal formation of solid products by forming water soluble phosphotungstic acids.}, keywords = {MORPHOLOGY; structure; Hydrothermal treatment; Tungtsen Oxides; SO42-; ClO4-; PO43-}, year = {2019}, eissn = {1533-4899}, pages = {498-501}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Pokol, György/0000-0003-1597-9808} } @article{MTMT:3421232, title = {Thermal investigations of the Sn–Zn–O gels obtained by sol–gel method}, url = {https://m2.mtmt.hu/api/publication/3421232}, author = {Cristina, Maria Vladut and Susana, Mihaiu and Szilágyi, Imre Miklós and Nagyné Kovács, Teodóra and Irina, Atkinson and Oana, Catalina Mocioiu and Simona, Petrescu and Maria, Zaharescu}, doi = {10.1007/s10973-018-7641-9}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, volume = {136}, unique-id = {3421232}, issn = {1388-6150}, year = {2019}, eissn = {1572-8943}, pages = {461-470} } @article{MTMT:3415888, title = {Synthesis and characterization of Sr and Mg-doped hydroxyapatite by a simple precipitation method}, url = {https://m2.mtmt.hu/api/publication/3415888}, author = {Nagyné Kovács, Teodóra and Studnicka, L and Kincses, Annamária and Spengler, Gabriella and Molnár, Mónika and Tolner, Mária and Lukács, István Endre and Szilágyi, Imre Miklós and Pokol, György}, doi = {10.1016/j.ceramint.2018.09.096}, journal-iso = {CERAM INT}, journal = {CERAMICS INTERNATIONAL}, volume = {44}, unique-id = {3415888}, issn = {0272-8842}, year = {2018}, eissn = {1873-3956}, pages = {22976-22982}, orcid-numbers = {Kincses, Annamária/0000-0002-1591-1419; Spengler, Gabriella/0000-0001-8085-0950; Molnár, Mónika/0000-0001-5296-7924; Lukács, István Endre/0000-0002-4985-4475; Pokol, György/0000-0003-1597-9808} } @article{MTMT:3375326, title = {HŐSZIGETLŐK TERMOANALITIKAI VIZSGÁLATA KÖRNYEZETSZENNYEZÉS SZEMPONTJÁBÓL}, url = {https://m2.mtmt.hu/api/publication/3375326}, author = {Ragács, Nikoletta and Nagyné Kovács, Teodóra and Szilágyi, Imre Miklós and Kerekes, Zsuzsanna}, journal-iso = {VÉDELEM TUDOMÁNY}, journal = {VÉDELEM TUDOMÁNY : KATASZTRÓFAVÉDELMI ONLINE TUDOMÁNYOS FOLYÓIRAT}, volume = {3}, unique-id = {3375326}, issn = {2498-6194}, year = {2018}, pages = {35-50}, orcid-numbers = {Kerekes, Zsuzsanna/0000-0002-2041-2622} } @article{MTMT:3303802, title = {Preparation of iron tungstate (FeWO4) nanosheets by hydrothermal method}, url = {https://m2.mtmt.hu/api/publication/3303802}, author = {Nagyné Kovács, Teodóra and Pokol, G and Gáber, F and Nagy, Dávidné and Igricz, Tamás and Lukács, István Endre and Fogarassy, Zsolt and Balázsi, Katalin and Szilágyi, Imre Miklós}, doi = {10.1016/j.materresbull.2017.08.031}, journal-iso = {MATER RES BULL}, journal = {MATERIALS RESEARCH BULLETIN}, volume = {95}, unique-id = {3303802}, issn = {0025-5408}, year = {2017}, eissn = {1873-4227}, pages = {563-569}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Fogarassy, Zsolt/0000-0003-4981-1237; Balázsi, Katalin/0000-0002-8929-9672} }