1. Colorimetric cutoff indication of relative humidity based on selectively functionalized mesoporous silicaErika Švara Fabjan, Peter Nadrah, Anja Ajdovec, Matija Tomšič, Goran Dražić, Matjaž Mazaj, Nataša Zabukovec Logar, Andrijana Sever Škapin, 2020, izvirni znanstveni članek Povzetek: We present a novel % cutoff concept of colorimetric indication of relative humidity based on dye dissolution in condensed water in capillaries of selectively functionalized mesoporours host SiO2 material. Consistently high levels of indoor air humidity induces mold and algae growth which represent a potential risks for human health and have deteriorating effect on walls as well. Simple localized humidity detection of high humidity with naked eye especially at places with low air circulation, where growth of mold usually starts first, is therefore highly desirable. The reporting dye was integrated in the non-functionalized mesoporous silica matrix with different pore diameters and selective-functionalized mesoporous silica material. After exposure to the environment of different air humidities the dye dissolved in water causing color change of adsorbent. With the use of adsorbents with different mesopore diameters high ability to tune the value of relative humidity when complete capillary condensation occurred was achieved. Materials with pore diameters of 3.0%nm, 3.5%nm and 7.0%nm exhibit gradual color change when reaching relative humidity up to 55, 79 and 88 RH% respectively. After selective methylation of the material with 7.0%nm pore diameter, non-gradual cutoff color change was achieved. Sample exhibited color change at narrow range of relative humidity (cutoff color change). Due to selective functionalized outer surface the dye dissolution occur only in condensed water in pores and therefore provide colorimetric indication only in this range. Selectively modified silica material has a great potential for a straightforward detection of high humid environment.
Ključne besede: turn-on colorimetric probe, selective functionalization, mesoporous silica, relative humidity, capillary condensation
Objavljeno v DiRROS: 05.09.2023; Ogledov: 62; Prenosov: 49
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2. Periodic anti-phase boundaries and crystal superstructures in ▫$PtCu_3$▫ nanoparticles as fuel cell electrocatalystsAna Rebeka Kamšek, Anton Meden, Iztok Arčon, Primož Jovanovič, Martin Šala, Francisco Ruiz-Zepeda, Goran Dražić, Miran Gaberšček, Marjan Bele, Nejc Hodnik, 2023, izvirni znanstveni članek Objavljeno v DiRROS: 28.08.2023; Ogledov: 85; Prenosov: 38
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3. Multicomponent Cu-Mn-Fe silica supported catalysts to stimulate photo-Fenton-like water treatment under sunlightAndraž Šuligoj, Ivalina Trendafilova, Ksenija Maver, Albin Pintar, Alenka Ristić, Goran Dražić, Wael H. M. Abdelraheem, Zvonko Jagličić, Iztok Arčon, Nataša Zabukovec Logar, Dionysios D. Dionysiou, Nataša Novak Tušar, 2023, izvirni znanstveni članek Objavljeno v DiRROS: 03.07.2023; Ogledov: 149; Prenosov: 51
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4. Winning combination of Cu and Fe oxide clusters with an alumina support for low-temperature catalytic oxidation of volatile organic compoundsTadej Žumbar, Iztok Arčon, Petar Djinović, Giuliana Aquilanti, Alenka Ristić, Goran Dražić, Janez Volavšek, Gregor Mali, Margarita Popova, Nataša Zabukovec Logar, Nataša Novak Tušar, Albin Pintar, Gregor Žerjav, 2023, izvirni znanstveni članek Objavljeno v DiRROS: 23.06.2023; Ogledov: 171; Prenosov: 53
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5. Utilisation of waste Cu-, Mn- and Fe-loaded zeolites generated after wastewater treatment as catalysts for air treatmentMia Stanković, Margarita Popova, Matjaž Mazaj, Goran Dražić, Andraž Šuligoj, Nigel Willy Van de Velde, Mojca Opresnik, Željko Jaćimović, Nataša Novak Tušar, Nataša Zabukovec Logar, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 13.12.2022; Ogledov: 240; Prenosov: 129
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6. Influence of alumina precursor properties on Cu-Fe alumina supported catalysts for total toluene oxidation as a model volatile organic air pollutantTadej Žumbar, Alenka Ristić, Goran Dražić, Hristina Lazarova, Janez Volavšek, Albin Pintar, Nataša Zabukovec Logar, Nataša Novak Tušar, 2021, izvirni znanstveni članek Ključne besede: alumina precursors, Cu-FeAl12O3 catalysts, heterogeneous catalysis, nanostructures, toulene total catalytic oxidation
Objavljeno v DiRROS: 17.11.2022; Ogledov: 348; Prenosov: 125
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7. Insight into the interdependence of Ni and Al in bifunctional Ni/ZSM-5 catalysts at the nanoscaleHue-Tong Vu, Iztok Arčon, Danilo Oliveira de Souza, Simone Pollastri, Goran Dražić, Janez Volavšek, Gregor Mali, Nataša Zabukovec Logar, Nataša Novak Tušar, 2022, izvirni znanstveni članek Ključne besede: Ni/ZSM-5 catalysts, zeolite, Ni XANES, EXAFS
Objavljeno v DiRROS: 13.06.2022; Ogledov: 496; Prenosov: 262
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8. Revealing the Pb whisker growth mechanism from Al-alloy surface and morphological dependency on material stress and growth environmentMatic Klug Jovičević, Tim Verbovšek, Patricia Jovičević Klug, Barbara Šetina, Bojan Ambrožič, Goran Dražić, Bojan Podgornik, 2022, izvirni znanstveni članek Ključne besede: aluminum alloy, metallic whiskers, residual stress, crystal growth, oxidation
Objavljeno v DiRROS: 06.05.2022; Ogledov: 372; Prenosov: 120
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9. Design and degradation of permanently porous vitamin C and zinc-based metal-organic frameworkTia Kristian Tajnšek, Erik Svensson Grape, Tom Willhammar, Tatjana Antonić Jelić, Uroš Javornik, Goran Dražić, Nataša Zabukovec Logar, Matjaž Mazaj, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 31.03.2022; Ogledov: 473; Prenosov: 315
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10. Increasing the oxygen-evolution reaction performance of nanotubular titanium oxynitride-supported Ir nanoparticles by a strong metal - support InteractionMarjan Bele, Primož Jovanovič, Živa Marinko, Sandra Drev, Vid Simon Šelih, Janez Kovač, Miran Gaberšček, Gorazd Koderman Podboršek, Goran Dražić, Nejc Hodnik, Anton Kokalj, Luka Suhadolnik, 2020, izvirni znanstveni članek Objavljeno v DiRROS: 26.11.2020; Ogledov: 1588; Prenosov: 952
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