Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Daina Upskuviene"'
Autor:
Antanas Nacys, Dijana Šimkūnaitė, Aldona Balčiūnaitė, Aušrinė Zabielaitė, Daina Upskuvienė, Benjaminas Šebeka, Vitalija Jasulaitienė, Vitalij Kovalevskij, Eugenijus Norkus, Loreta Tamašauskaitė-Tamašiūnaitė
Publikováno v:
Crystals, Vol 12, Iss 3, p 362 (2022)
In this study, a platinum-coated Ni foam catalyst (denoted PtNi/Ni foam) was investigated for the oxidation of the formate reaction (FOR) in an alkaline medium. The catalyst was fabricated via a two-step procedure, which involved an electroless depos
Externí odkaz:
https://doaj.org/article/bc07553047594c57b6a4c341c67f7fba
Autor:
Aldona Balčiūnaitė, Aušrinė Zabielaitė, Daina Upskuvienė, Loreta Tamašauskaitė-Tamašiūnaitė, Irena Stalnionienė, Leonas Naruškevičius, Jūratė Vaičiūnienė, Algirdas Selskis, Remigijus Juškėnas, Eugenijus Norkus
Publikováno v:
Materials, Vol 14, Iss 24, p 7663 (2021)
In this study, sodium borohydride oxidation has been investigated on the platinum nanoparticles modified copper/titanium catalysts (PtNPsCu/Ti), which were fabricated by employing the electroless copper plating and galvanic displacement technique. IC
Externí odkaz:
https://doaj.org/article/433e446b59664aef8a5db2abffdc869f
Autor:
Galina Dobele, Aleksandrs Volperts, Ance Plavniece, Aivars Zhurinsh, Daina Upskuviene, Aldona Balciunaite, Gediminas Niaura, Luis César Colmenares-Rausseo, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Publikováno v:
Molecules, Vol 29, Iss 10, p 2238 (2024)
Carbonization of biomass residues followed by activation has great potential to become a safe process for the production of various carbon materials for various applications. Demand for commercial use of biomass-based carbon materials is growing rapi
Externí odkaz:
https://doaj.org/article/1c38162fd1d84a7895099b03a1279353
Autor:
Daina Upskuviene, Aldona Balciunaite, Audrius Drabavicius, Vitalija Jasulaitiene, Gediminas Niaura, Martynas Talaikis, Ance Plavniece, Galina Dobele, Aleksandrs Volperts, Aivars Zhurinsh, Yu-Chuan Lin, Yu-Wen Chen, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Publikováno v:
Catalysis Communications, Vol 184, Iss , Pp 106797- (2023)
An efficient carbon material was prepared using hydrothermal carbonization of birch-wood chips in the water under elevated pressure, subsequent chemical activation, and doping with nitrogen. The obtained catalyst had a large specific surface area of
Externí odkaz:
https://doaj.org/article/2290fdc6eae54376b11bb42a0cafcf29
Autor:
Aleksandrs Volperts, Daina Upskuviene, Aldona Balciunaite, Vitalija Jasulaitiene, Gediminas Niaura, Audrius Drabavicius, Ance Plavniece, Galina Dobele, Aivars Zhurinsh, Yu-Chuan Lin, Yu-Wen Chen, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Publikováno v:
Catalysis Communications, Vol 182, Iss , Pp 106743- (2023)
In the present study, unmodified nitrogen-doped carbon material (N-doped C) and modified with copper nanoparticles (CuNPs) nitrogen-doped carbon material (Cu-N-doped C) have been synthesized using wood biomass as a carbon precursor, dicyandiamide as
Externí odkaz:
https://doaj.org/article/2737032ee7854a658707bb7cf213789f
Autor:
Antanas Nacys, Dijana Simkunaitė, Aldona Balciunaite, Ausrine Zabielaite, Daina Upskuviene, Ramunas Levinas, Vitalija Jasulaitiene, Vitalij Kovalevskij, Birute Simkunaite-Stanyniene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Publikováno v:
Materials, Vol 16, Iss 19, p 6427 (2023)
A Pt-coated Ni layer supported on a Ni foam catalyst (denoted PtNi/Nifoam) was investigated for the electro-oxidation of the formic acid (FAO) in acidic media. The prepared PtNi/Nifoam catalyst was studied as a function of the formic acid (FA) concen
Externí odkaz:
https://doaj.org/article/c1f61bfffefc4e07a33778202dbe84da
Autor:
Ausrine Zabielaite, Aldona Balciunaite, Daina Upskuviene, Dijana Simkunaite, Ramunas Levinas, Gediminas Niaura, Jurate Vaiciuniene, Vitalija Jasulaitiene, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus
Publikováno v:
Materials, Vol 16, Iss 17, p 5923 (2023)
This study focuses on fabricating cobalt particles deposited on graphitic carbon nitride (Co/gCN) using annealing, microwave-assisted and hydrothermal syntheses, and their employment in hydrogen and oxygen evolution (HER and OER) reactions. Compositi
Externí odkaz:
https://doaj.org/article/585f8f72c5074d7e916dd9737190f707
Autor:
Galina Dobele, Ance Plavniece, Aleksandrs Volperts, Aivars Zhurinsh, Daina Upskuviene, Aldona Balciunaite, Vitalija Jasulaitiene, Gediminas Niaura, Martynas Talaikis, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus, Jannicke Kvello, Luis César Colmenares-Rausseo
Publikováno v:
Materials, Vol 16, Iss 17, p 6005 (2023)
Nitrogen-doped activated carbons with controlled micro- and mesoporosity were obtained from wood and wastes via chemical processing using pre-treatment (pyrolysis at 500 °C and hydrothermally carbonization at 250 °C) and evaluated as oxygen reducti
Externí odkaz:
https://doaj.org/article/5325f89144324ceaa4a8087b037b704b
Autor:
Loreta Tamasiunaite, Daina Upskuviene, Aldona Balciunaite, Vitalija Jasulaitiene, Gediminas Niaura, Audrius Drabavicius, Ance Plavniece, Aleksandrs Volperts, Galina Dobele, Aivars Zhurinsh, Eugenijus Norkus
Publikováno v:
ECS Meeting Abstracts. :1480-1480
Recently, great attention has been focused on biomass-derived electrocatalysts for the oxygen reduction reaction (ORR). In the present study, the wood-derived nitrogen-doped carbon nanomaterials with graphene-like structures have been synthesized fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9d6f2088be984b773e62783c86050ba
https://doi.org/10.1149/ma2022-01351480mtgabs
https://doi.org/10.1149/ma2022-01351480mtgabs
Autor:
Antanas Nacys, Dijana Simkunaite, Benjaminas Sebeka, Daina Upskuviene, Aldona Balciunaite, Ausrine Zabielaite, Vitalija Jasulaitiene, Loreta Tamasiunaite, Eugenijus Norkus
Publikováno v:
ECS Meeting Abstracts. :1539-1539
The performance of direct formic acid fuel cells (DFAFCs) is greatly determined by the catalyst materials. Pt nanoparticles-based heterogeneous structures are among the most important substances for the oxidation of formic acid (FAO). In this study,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b9cd51c6d5d30ae14be05b864bcb37
https://doi.org/10.1149/ma2022-01351539mtgabs
https://doi.org/10.1149/ma2022-01351539mtgabs