Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Aleksej, Zarkov"'
Autor:
Diana Vistorskaja, Jen-Chang Yang, Yu-Tzu Wu, Liang-Yu Chang, Po-Wen Lu, Aleksej Zarkov, Inga Grigoraviciute, Aivaras Kareiva
Publikováno v:
Crystals, Vol 14, Iss 8, p 706 (2024)
In the present work, iron–sillenite (Bi25FeO40) was synthesized using a simple solid-state reaction method and characterized. The effects of the synthesis conditions on the phase purity of Bi2O3/Fe3O4, morphological features, and possible applicati
Externí odkaz:
https://doaj.org/article/8dc6fecfc45a48499b508bce475b2a36
Autor:
Turlybek N. Nurakhmetov, Temirulan T. Alibay, Keleshek B. Zhangylyssov, Aibek S. Nurpeissov, Sapargali Pazylbek, Diana Griesiute, Aleksej Zarkov, Aivaras Kareiva
Publikováno v:
Crystals, Vol 14, Iss 5, p 406 (2024)
The mechanisms of formation of induced intrinsic and impurity radiative states, which consist of intrinsic and impurity electron–hole-trapping center states in irradiated Ca2P2O7−Mn and Ca2P2O7 phosphates, were investigated using thermoactivation
Externí odkaz:
https://doaj.org/article/312f009eb9524c9381a0b02612af5af0
Publikováno v:
Materials, Vol 17, Iss 4, p 788 (2024)
Magnesium whitlockite (Mg-WH) powders were synthesized with remarkable efficiency via the dissolution–precipitation method by employing an environmentally benign precursor, gypsum. Under optimized conditions, each 5.00 g of initial gypsum yielded a
Externí odkaz:
https://doaj.org/article/76b57320429a4892971ce813b4de62fa
Autor:
Aleksej Zarkov
Publikováno v:
Materials, Vol 17, Iss 2, p 462 (2024)
The rapid advances in technologies around the globe necessitate the development of new materials, nanostructures, and multicomponent composites with specific chemical and physical properties that can meet the requirements of modern technologies [...]
Externí odkaz:
https://doaj.org/article/a2ccc37a17cb4283b32df39729585880
Publikováno v:
Metals, Vol 14, Iss 1, p 65 (2024)
The development of environmentally friendly and energy-saving processes for recycling electronic waste (e-waste) is still relevant today. The research presented in this work relates to hydrometallurgy, namely, the electrochemical leaching of metals f
Externí odkaz:
https://doaj.org/article/a8e84a7a96464fc887893c02f9c941a9
Autor:
Ervins Blumbergs, Andrei Shishkin, Karlis Markus, Vera Serga, Dmitri Goljandin, Artur Klauson, Vitalijs Abramovskis, Janis Baronins, Aleksej Zarkov, Vladimir Pankratov
Publikováno v:
Metals, Vol 14, Iss 1, p 95 (2024)
Printed circuit boards (PCBs) make up 3 to 5% of all electronic waste. The metal content of spent PCBs can reach 40%. They usually contain valuable metals, such as Ag, Au, and Pd, as well as other metals such as Cu, Sn, Pb, Cd, Cr, Zn, Ni, and Mn. Ho
Externí odkaz:
https://doaj.org/article/8e20a363b74b400ba44780def950019d
Autor:
Diana Griesiute, Edita Garskaite, Andris Antuzevics, Vytautas Klimavicius, Vytautas Balevicius, Aleksej Zarkov, Arturas Katelnikovas, Dick Sandberg, Aivaras Kareiva
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract In the present work, three different Mn2+-doped calcium pyrophosphate (CPP, Ca2P2O7) polymorphs were synthesized by wet co-precipitation method followed by annealing at different temperatures. The crystal structure and purity were studied by
Externí odkaz:
https://doaj.org/article/8511e46bee6f4a2b8318d646743592b3
Publikováno v:
Proceedings, Vol 92, Iss 1, p 25 (2023)
Calcium phosphates (CPs) represent the most widespread class of bioceramic materials used for bone regeneration purposes due to their excellent biological performance and similarity to the natural bone [...]
Externí odkaz:
https://doaj.org/article/507a54050c87454081476d7e8bb74e41
Autor:
Inga GRIGORAVICIUTE-PURONIENE, Iryna YEVCHUK, Oksana DEMCHYNA, Mariia ZHYHAILO, Khrystyna RYMSHA, Natalia BABKINA, Tetyana SHANTALIY, Bogdan RACHIY, Aivaras KAREIVA, Zivile STANKEVICIUTE, Ramunas SKAUDZIUS, Aleksej ZARKOV, Rostyslav MUSIY
Publikováno v:
Medžiagotyra, Vol 28, Iss 1, Pp 82-88 (2022)
Cross-linked organiс-inorganic sulfo-containing membranes of various compositions based on acrylic monomers (acrylonitrile, acrylic acid, 3-sulfopropylacrylate potassium salt, ethylene glycol diacrylate) and sol-gel systems of tetraethoxysilane have
Externí odkaz:
https://doaj.org/article/151c01c3c1ce41b29a514fe8d03f6755
Publikováno v:
Inorganics, Vol 11, Iss 5, p 178 (2023)
Yttrium manganite (YMnO3) is a compound belonging to the hexagonal rare earth manganites family, which demonstrates multiferroic properties. This material can be prepared by several synthetic approaches, with the most common one being the solid-state
Externí odkaz:
https://doaj.org/article/509f3fa0727e4f048578ba2107f0ad9f