Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "electrochemical synthesis" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-3 z 3
    Tytuł:
    Electrochemical Method of Copper Powder Synthesis on Rotating Electrode in the Presence of Surfactants
    Autorzy:
    Wojtaszek, K.
    Cebula, F.
    Partyka, B.
    Deszcz, P.
    Włoch, G.
    Socha, R. P.
    Woźny, K.
    Żabiński, Piotr
    Wojnicki, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2203711.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    copper powder
    electrochemical synthesis
    rotating electrode
    ethylene glycol
    Opis:
    This paper presents a method of synthesizing copper powders by electrochemical method with the use of a rotating working electrode. The influence of the rotation speed of the working electrode, the current density, the concentration of copper ions, and the addition of ethylene glycol on the shape, size, and size distribution of the obtained powders were investigated. Properties of the synthesized powders were characterized by scanning electron microscopy (SEM) and X-ray powder diffractometry (XRD). It has been shown that it is possible to obtain copper powders with a size of 1 µm by an electrochemical method using the rotary cathode, in sulphate bath with addition of ethylene glycol as a surfactant. Increasing current density causes a decrease in the average size of the obtained powder particles. The addition of 2.5% of ethylene glycol prevents the formation of dendritic powders. The change in the concentration of copper ions in the range from 0.01 to 0.15 mol/dm3 in the electrolyte did not show any significant effect on the size of obtained particles. However, higher concentrations of copper limiting the presence of dendritic-shape particles. Changing the speed of rotation of the electrode affects both the size and the shape of synthesized copper powder. For the rotational speed of the electrode of 115 rpm, the obtained powders have a size distribution in the range of 0-3 µm and an average particle size of 1 µm. The particles had a polygonal shape with an agglomeration tendency.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 1; 375--386
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrochemical synthesis of tetragonal SnO2 phase
    Elektrochemiczna synteza SnO2 o strukturze tetragonalnej
    Autorzy:
    Mech, K.
    Kowalik, R.
    Fitzner, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/351445.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dwutlenek cyny
    synteza elektrochemiczna
    elektrochemia
    elektrograwimetria
    tin dioxide
    electrochemical synthesis
    electrodeposition
    electrogravimetry
    Opis:
    The main aim of this research was to determine parameters of deposition of tetragonal SnO2 phase by electrochemical method. The influence of different parameters like potential of a working electrode, the electrolyte composition and time of deposition on the morphology of the electrodeposited SnO2 was determined by LSV and QCM techniques. The mechanism of the oxide formation is also discussed. The morphology and structure of films was characterized by AFM and XRD technique.
    Celem badań było określenie parametrów osadzania SnO2 o strukturze tetragonalnej metodą elektrochemiczną. Określony został wpływ parametrów takich jak: potencjał elektrody pracującej, skład elektrolitu oraz czas trwania elektrolizy na morfologię osadzonego SnO2. Badania prowadzono z wykorzystaniem technik LSV oraz QCM. W artykule omówiony został również mechanizm tworzenia się SnO2. Do charakterystyki morfologii uzyskanych cienkich warstw wykorzystano mikroskop AFM. Badania strukturalne wykonano metodą XRD.
    Źródło:
    Archives of Metallurgy and Materials; 2011, 56, 3; 659-663
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Justification of the most rational method for the nanostructures synthesis on the semiconductors surface
    Autorzy:
    Suchikova, Y.
    Vambol, S.
    Vambol, V.
    Mozaffari, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/368501.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    hierarchies’ analysis method
    chemical etching
    electrochemical etching
    lithographic etching
    nanostructures synthesis
    metoda hierarchii analitycznej
    trawienie chemiczne
    wytrawianie elektrochemiczne
    litografia
    synteza nanostruktur
    Opis:
    Purpose: of this paper is to justification the most rational method for the nanostructures synthesis on the semiconductors surface, which is capable of providing high quality synthesized nanostructures at low cost and ease of the process. Design/methodology/approach: The choice of the optimal method of synthesis was carried out using the hierarchy analysis method, which is implemented by decomposing the problem into more simple parts and further processing judgments at each hierarchical level using pair comparisons. Findings: The article describes the main methods of synthesis of nanostructures, presents their advantages and disadvantages. The methods were evaluated by such criteria as: environmental friendliness, efficiency, stages number of the technological process, complexity, resources expenditure and time and effectiveness. Using the hierarchy analysis method, has been established that electrochemical etching is the most important alternative, and when choosing a nanostructures synthesis method on the semiconductors surface, this method should be preferred. Such studies are necessary for industrial serial production of nanostructures and allow reducing expenses at the realization of the problem of synthesis of qualitative samples. Research limitations/implications: In this research, the hierarchy analysis method was used only to select a rational method for synthesizing nanostructures on the semiconductors surface. However, this research needs to be developed with respect to establishing a correlation between the synthesis conditions and the nanostructures acquired properties. Practical implications: First, was been established that the optimal method for the nanostructures synthesis on the semiconductors surface is electrochemical etching, and not lithographic or chemical method. This allowed the theoretical and empirical point of view to justify the choice of the nanostructures synthesis method in the industrial production conditions. Secondly, the presented method can be applied to the synthesis method choice of other nanostructures types, which is necessary in conditions of resources exhaustion and high raw materials cost. Originality/value: In the article, for the first time, the choice of the nanostructures synthesis method on the semiconductors surface is presented using of paired comparisons of criteria and available alternatives. The article will be useful to engineers involved in the nanostructures synthesis, researchers and scientists, as well as students studying in the field of "nanotechnology".
    Źródło:
    Journal of Achievements in Materials and Manufacturing Engineering; 2019, 92, 1-2; 19-28
    1734-8412
    Pojawia się w:
    Journal of Achievements in Materials and Manufacturing Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies