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1.
A facile chemical method for the synthesis of 3C–SiC nanoflakes
Mirela Dragomir, Matjaz Valant, Mattia Fanetti, Yurij Mozharivskyj, 2016, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: SiC, flakes, nano-flakes, chemical synthesis
Objavljeno: 04.03.2016; Ogledov: 891; Prenosov: 0
.pdf Polno besedilo (1,58 MB)

2.
Ge-doped silica nanoparticles: production and characterisation
Matjaz Valant, 2016, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: nanomateriali, silicijev oksid, optični materiali
Objavljeno: 10.06.2016; Ogledov: 719; Prenosov: 0
.pdf Polno besedilo (1010,51 KB)

3.
Molecular size and solubility conditions of polysilane macromolecules with different topology
Matjaz Valant, 2016, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: polisilani, dendrimeri, makromolekule
Objavljeno: 25.10.2016; Ogledov: 623; Prenosov: 36
.pdf Polno besedilo (1,67 MB)

4.
Electrocaloric effect in lead-free Aurivillius relaxor ferroelectric ceramics
Matjaz Valant, 2017, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: Elektrokalorični efekt, Aurivilliusova faza, Ergodičnost, Relaksor
Objavljeno: 04.01.2017; Ogledov: 476; Prenosov: 0
.pdf Polno besedilo (1,51 MB)

5.
Multicaloric effect during nerve action
Matjaz Valant, 2016, objavljeni povzetek znanstvenega prispevka na konferenci (vabljeno predavanje)

Najdeno v: osebi
Ključne besede: multikalorični efekt, prenos žičnega signala, solitonski model
Objavljeno: 04.01.2017; Ogledov: 577; Prenosov: 0
.pdf Polno besedilo (2,48 MB)
Gradivo ima več datotek! Več...

6.
Hard and Fully Transparent Nanocomposite Coating for Glass based on Amorphous Alumina
Matjaz Valant, 2017, objavljeni povzetek znanstvenega prispevka na konferenci (vabljeno predavanje)

Najdeno v: osebi
Ključne besede: steklo, prevleke amorfen aluminijev oksid
Objavljeno: 01.06.2017; Ogledov: 599; Prenosov: 0
.pdf Polno besedilo (1,09 MB)

7.
Design of a highly photocatalytically active ZnO/CuWO4 nanocomposite
Matjaz Valant, Saim Emin, 2017, objavljeni povzetek znanstvenega prispevka na konferenci (vabljeno predavanje)

Opis: We report the synthesis, photocatalytic activity and mechanistic study of a novel heterostructure (HTS) with an efficient charge separation. A ZnO/CuWO4 HTS material is reported for the first time. The nanocomposite (NC) consists of CuWO4 nanoparticles (ca. 200-400 nm) decorated with ZnO nanorods (ca. 30 nm, 100 nm length) and is shown to be a highly active photocatalyst for decomposition of model contaminants including methyl orange and terephthalic acid. The ZnO/CuWO4 interface is shown to be the key for controlling the enhanced activity of the composite material. Transient absorption spectroscopy studies demonstrated that a photoinduced charge transfer across the ZnO/CuWO4 interface increased electron-hole lifetime by 3 orders of magnitude, from < 20 s in ZnO to 30 ms in the ZnO/CuWO4 NC sample. Our findings show that through interface design efficient HTS materials can be prepared for a wide range of photocatalytic applications.
Najdeno v: osebi
Ključne besede: CuWO4, nanocomposite, transient absorption spectroscopy
Objavljeno: 28.08.2017; Ogledov: 180; Prenosov: 0
.pdf Polno besedilo (621,87 KB)

8.
Cathodoluminescence Characterization of Point Defects in Optical Fibers
Matjaz Valant, 2017, izvirni znanstveni članek

Najdeno v: osebi
Ključne besede: katodoluminiscenca, dozimetrija, optična vlakna
Objavljeno: 11.09.2017; Ogledov: 164; Prenosov: 0
.pdf Polno besedilo (1019,90 KB)

9.
Tungsten carbide thin films for electrochemical water splitting studies
Hasan Okuyucu, Matjaz Valant, Ali Semerci, Cesur Altinkaya, Saim Emin, Abdullah Yildiz, 2017, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: We used wet-chemistry techniques to prepare colloidal tungsten (W) nanoparticles (NPs). The synthesis of W NPs was conducted using the so called hot-matrix method in 1-octadecene [1]. The sizes of obtained W NPs are in the order of 2 - 5 nm. These W NPs are coated with hydrophobic molecules which allow their dispersion in organic solvents like choloroform (CHCl3). It was found that the colloidal stability of the dispersions is exceptionally high exceeding several years. The stability of W NPs which prevents coagulation allows the preparation of thin films with uniform thicknesses by spin-coating, inkjet-printing and spray coating. We have prepared tungsten carbide (W2C, WC) thin films. The preparation of W2C and WC was achieved by spin-coating of pre-synthesized W NPs on graphite substrate and following heat treatment under Ar atmosphere at 1000 and 1450°C. The obtained W2C and WC films were used both in electrochemical water splitting studies. We also made a composite W2C-Pt films where we used only 5 at.% of Pt. The W2C-Pt composite has shown similar performance as pure Pt-C for hydrogen (H2) evolution. In conclusion, we have developed a procedure for the synthesis of W NPs which can be applied for the preparation of tungsten carbides films and their use for electrochemical water splitting.
Najdeno v: osebi
Ključne besede: water splitting, nanoparticles, hot-matrix
Objavljeno: 09.10.2017; Ogledov: 142; Prenosov: 0
.pdf Polno besedilo (376,30 KB)

10.
Photoelectrochemical Water Splitting Studies with nanostructured n and p-type semiconductor electrodes
Matjaz Valant, Saim Emin, 2017, objavljeni povzetek znanstvenega prispevka na konferenci (vabljeno predavanje)

Opis: Photoelectrochemical water splitting has been demonstrated as a promising way to efficiently split water. Currently, solar-to-hydrogen conversion efficiency using state-of-the-art material combinations in PEC system is in the order of 7%. Fabrication of nanostructured materials with unique morphologies and compositions is an important factor to fully utilize the possibilities in this field. We will present different strategies for the preparation of nanostructured metal oxide thin films by using electrodeposition and wet-chemistry techniques. Focus will be given on the preparation of ZnO and CuO thin films where intermediate phases like Zn(OH)8Cl2.H2O and CuX (X=Br, Cl) were electrodeposited. Wet-chemistry synthesis techniques will be also explored for the preparation of nanostructured WO3 and a-Fe2O3 thin films. Especially, the hot-pyrolysis technique for the preparation of colloidal W and Fe/Fe-oxide nanoparticles will be shown. Spin-coating of W and Fe/Fe-oxide NPs onto optically conductive substrates and subsequent heat treatment of the obtained films was found to be a convenient way for the preparation of nanostructured WO3 and a-Fe2O3 thin films.
Najdeno v: osebi
Ključne besede: photoelectrochemical water splitting, colloidal nanoparticles, semiconductor
Objavljeno: 24.10.2017; Ogledov: 132; Prenosov: 0
.pdf Polno besedilo (1,47 MB)

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