ESTEEM 2 - Enabling Science and Technology through European Electron Microscopy

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Publications

In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties

Rašković-Lovre, Željka; Kurko, Sandra V.; Ivanović, Nenad; Fernandez, Jose Francisco; Ares, Jose-Ramon; Sturm, Saso; Mongstad, Trygve; Novaković, Nikola; Grbović-Novaković, Jasmina

(2017)

TY  - JOUR
AU  - Rašković-Lovre, Željka
AU  - Kurko, Sandra V.
AU  - Ivanović, Nenad
AU  - Fernandez, Jose Francisco
AU  - Ares, Jose-Ramon
AU  - Sturm, Saso
AU  - Mongstad, Trygve
AU  - Novaković, Nikola
AU  - Grbović-Novaković, Jasmina
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1381
AB  - Processes taking place during hydrogen desorption from MgH2 thin films were investigated in as-prepared samples and samples modified by argon ion irradiation. Irradiation was used to produce well-defined defects with depth distribution. It was shown that the size, shape, and concentration of Mg nuclei formed during hydrogen desorption from MgH2 thin films depend on the characteristics and distribution of the induced defects. In as-prepared samples the shape of Mg nuclei is spherical, while in irradiated samples, it is highly irregular. Variations in sample colour were observed during hydrogen desorption and before the creation of Mg nuclei. DFT calculations showed that the observed variations in the optical properties of samples can be explained by changes in MgH2 electronic structure -the appearance of an H-vacancy band within the MgH2 energy gap. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties
VL  - 695
SP  - 2381
EP  - 2388
DO  - 10.1016/j.jallcom.2016.11.128
ER  - 
@article{
author = "Rašković-Lovre, Željka and Kurko, Sandra V. and Ivanović, Nenad and Fernandez, Jose Francisco and Ares, Jose-Ramon and Sturm, Saso and Mongstad, Trygve and Novaković, Nikola and Grbović-Novaković, Jasmina",
year = "2017",
abstract = "Processes taking place during hydrogen desorption from MgH2 thin films were investigated in as-prepared samples and samples modified by argon ion irradiation. Irradiation was used to produce well-defined defects with depth distribution. It was shown that the size, shape, and concentration of Mg nuclei formed during hydrogen desorption from MgH2 thin films depend on the characteristics and distribution of the induced defects. In as-prepared samples the shape of Mg nuclei is spherical, while in irradiated samples, it is highly irregular. Variations in sample colour were observed during hydrogen desorption and before the creation of Mg nuclei. DFT calculations showed that the observed variations in the optical properties of samples can be explained by changes in MgH2 electronic structure -the appearance of an H-vacancy band within the MgH2 energy gap. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties",
volume = "695",
pages = "2381-2388",
doi = "10.1016/j.jallcom.2016.11.128"
}
Rašković-Lovre, Ž., Kurko, S. V., Ivanović, N., Fernandez, J. F., Ares, J., Sturm, S., Mongstad, T., Novaković, N.,& Grbović-Novaković, J.. (2017). In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties. in Journal of Alloys and Compounds, 695, 2381-2388.
https://doi.org/10.1016/j.jallcom.2016.11.128
Rašković-Lovre Ž, Kurko SV, Ivanović N, Fernandez JF, Ares J, Sturm S, Mongstad T, Novaković N, Grbović-Novaković J. In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties. in Journal of Alloys and Compounds. 2017;695:2381-2388.
doi:10.1016/j.jallcom.2016.11.128 .
Rašković-Lovre, Željka, Kurko, Sandra V., Ivanović, Nenad, Fernandez, Jose Francisco, Ares, Jose-Ramon, Sturm, Saso, Mongstad, Trygve, Novaković, Nikola, Grbović-Novaković, Jasmina, "In-situ desorption of magnesium hydride irradiated and non-irradiated thin films: Relation to optical properties" in Journal of Alloys and Compounds, 695 (2017):2381-2388,
https://doi.org/10.1016/j.jallcom.2016.11.128 . .
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The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes

Cabana, Laura; Ke, Xiaoxing; Kepić, Dejan P.; Oro-Sole, Judith; Tobias-Rossell, Ester; Tendeloo, Gustaaf Van; Tobias, Gerard

(2015)

TY  - JOUR
AU  - Cabana, Laura
AU  - Ke, Xiaoxing
AU  - Kepić, Dejan P.
AU  - Oro-Sole, Judith
AU  - Tobias-Rossell, Ester
AU  - Tendeloo, Gustaaf Van
AU  - Tobias, Gerard
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/712
AB  - Purification and shortening of carbon nanotubes have attracted a great deal of attention to increase the biocompatibility and performance of the material in several applications. Steam treatment has been employed to afford both purification and shortening of multi-walled carbon nanotubes (MWCNTs). Steam removes the amorphous carbon and the graphitic particles that sheath catalytic nanoparticles, facilitating their removal by a subsequent acidic wash. The amount of metal impurities can be reduced in this manner below 0.01 wt.%. The length distribution of MWCNTs after different steam treatment times (from 1 h to 15 h) was assessed by box plot analysis of the electron microscopy data. Samples with a median length of 0.57 mu m have been prepared with the reported methodology while preserving the integrity of the tubular wall structure. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Carbon
T1  - The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes
VL  - 93
SP  - 1059
EP  - 1067
DO  - 10.1016/j.carbon.2015.06.027
ER  - 
@article{
author = "Cabana, Laura and Ke, Xiaoxing and Kepić, Dejan P. and Oro-Sole, Judith and Tobias-Rossell, Ester and Tendeloo, Gustaaf Van and Tobias, Gerard",
year = "2015",
abstract = "Purification and shortening of carbon nanotubes have attracted a great deal of attention to increase the biocompatibility and performance of the material in several applications. Steam treatment has been employed to afford both purification and shortening of multi-walled carbon nanotubes (MWCNTs). Steam removes the amorphous carbon and the graphitic particles that sheath catalytic nanoparticles, facilitating their removal by a subsequent acidic wash. The amount of metal impurities can be reduced in this manner below 0.01 wt.%. The length distribution of MWCNTs after different steam treatment times (from 1 h to 15 h) was assessed by box plot analysis of the electron microscopy data. Samples with a median length of 0.57 mu m have been prepared with the reported methodology while preserving the integrity of the tubular wall structure. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Carbon",
title = "The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes",
volume = "93",
pages = "1059-1067",
doi = "10.1016/j.carbon.2015.06.027"
}
Cabana, L., Ke, X., Kepić, D. P., Oro-Sole, J., Tobias-Rossell, E., Tendeloo, G. V.,& Tobias, G.. (2015). The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes. in Carbon, 93, 1059-1067.
https://doi.org/10.1016/j.carbon.2015.06.027
Cabana L, Ke X, Kepić DP, Oro-Sole J, Tobias-Rossell E, Tendeloo GV, Tobias G. The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes. in Carbon. 2015;93:1059-1067.
doi:10.1016/j.carbon.2015.06.027 .
Cabana, Laura, Ke, Xiaoxing, Kepić, Dejan P., Oro-Sole, Judith, Tobias-Rossell, Ester, Tendeloo, Gustaaf Van, Tobias, Gerard, "The role of steam treatment on the structure, purity and length distribution of multi-walled carbon nanotubes" in Carbon, 93 (2015):1059-1067,
https://doi.org/10.1016/j.carbon.2015.06.027 . .
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