Search Results - "Obraztsova, Elena D."

Transition from parabolic to ring-shaped valence band maximum in few-layer GaS, GaSe, and InSe by Rybkovskiy, Dmitry V., Osadchy, Alexander V., Obraztsova, Elena D.

“…By performing first-principles electronic structure calculations in frames of density functional theory we study the dependence of the valence band shape on…”
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Chiral-selective growth of single-walled carbon nanotubes on Fe-based catalysts using CO as carbon source by He, Maoshuai, Fedotov, Pavel V., Chernov, Alexander, Obraztsova, Elena D., Jiang, Hua, Wei, Na, Cui, Hongzhi, Sainio, Jani, Zhang, Weiguo, Jin, Hua, Karppinen, Maarit, Kauppinen, Esko I., Loiseau, Annick

“…MgO supported monometallic Fe (FeMgO) and bimetallic FeMn (FeMnMgO) catalysts were developed for growing carbon nanotubes using CO as carbon source…”
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Chiral-Selective Growth of Single-Walled Carbon Nanotubes on Lattice-Mismatched Epitaxial Cobalt Nanoparticles by He, Maoshuai, Jiang, Hua, Liu, Bilu, Fedotov, Pavel V., Chernov, Alexander I., Obraztsova, Elena D., Cavalca, Filippo, Wagner, Jakob B., Hansen, Thomas W., Anoshkin, Ilya V., Obraztsova, Ekaterina A., Belkin, Alexey V., Sairanen, Emma, Nasibulin, Albert G., Lehtonen, Juha, Kauppinen, Esko I.

“…Controlling chirality in growth of single-walled carbon nanotubes (SWNTs) is important for exploiting their practical applications. For long it has been…”
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Anchoring effect of Ni2+ in stabilizing reduced metallic particles for growing single-walled carbon nanotubes by He, Maoshuai, Wang, Xiao, Zhang, Lili, Wu, Qianru, Song, Xiaojie, Chernov, Alexander I., Fedotov, Pavel V., Obraztsova, Elena D., Sainio, Jani, Jiang, Hua, Cui, Hongzhi, Ding, Feng, Kauppinen, Esko

“…The suitability of the NiMgO catalyst as a catalyst in chiral-selective growth of single-walled carbon nanotubes (SWNTs) by chemical vapor deposition has been…”
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Predominant (6,5) Single-Walled Carbon Nanotube Growth on a Copper-Promoted Iron Catalyst by He, Maoshuai, Chernov, Alexander I, Fedotov, Pavel V, Obraztsova, Elena D, Sainio, Jani, Rikkinen, Emma, Jiang, Hua, Zhu, Zhen, Tian, Ying, Kauppinen, Esko I, Niemelä, Marita, Krause, A. Outi I

“…We have developed a magnesia (MgO)-supported iron−copper (FeCu) catalyst to accomplish the growth of single-walled carbon nanotubes (SWNTs) using carbon…”
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Optical Properties of Graphene Nanoribbons Encapsulated in Single-Walled Carbon Nanotubes by Chernov, Alexander I, Fedotov, Pavel V, Talyzin, Alexandr V, Suarez Lopez, Inma, Anoshkin, Ilya V, Nasibulin, Albert G, Kauppinen, Esko I, Obraztsova, Elena D

“…We report the photoluminescence (PL) from graphene nanoribbons (GNRs) encapsulated in single-walled carbon nanotubes (SWCNTs). New PL spectral features…”
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Raman spectra for characterization of defective CVD multi-walled carbon nanotubes by Kuznetsov, Vladimir L., Bokova-Sirosh, Sofya N., Moseenkov, Sergey I., Ishchenko, Arcady V., Krasnikov, Dmitry V., Kazakova, Mariya A., Romanenko, Anatoly I., Tkachev, Evgeniy N., Obraztsova, Elena D.

“…Curved graphene fragments can be considered as building blocks of carbon nanotubes. Thus, the size of graphene fragments may be considered as one of the most…”
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Broadband Light-Induced Absorbance Change in Multilayer Graphene by Obraztsov, Petr A, Rybin, Maxim G, Tyurnina, Anastasia V, Garnov, Sergey V, Obraztsova, Elena D, Obraztsov, Alexander N, Svirko, Yuri P

“…We report the ultrafast light-induced absorbance change in CVD-grown multilayer graphene. Using femtosecond pump−probe measurements in 1100−1800 nm spectral…”
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Separation and optical identification of semiconducting and metallic single‐walled carbon nanotubes by Eremina, Valentina A., Obraztsov, Petr A., Fedotov, Pavel V., Chernov, Alexander I., Obraztsova, Elena D.

“…In this work we demonstrate a large‐scale separation of arc single‐walled carbon nanotubes into semiconducting and metallic fractions by an aqueous two‐phase…”
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Synergistic effects in FeCu bimetallic catalyst for low temperature growth of single-walled carbon nanotubes by He, Maoshuai, Chernov, Alexander I., Obraztsova, Elena D., Jiang, Hua, Kauppinen, Esko I., Lehtonen, Juha

“…A series of MgO-supported FeCu catalysts with different metal concentrations has been studied for synthesizing single-walled carbon nanotubes (SWCNTs)…”
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Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction by He, Maoshuai, Liu, Bilu, Chernov, Alexander I, Obraztsova, Elena D, Kauppi, Inkeri, Jiang, Hua, Anoshkin, Ilya, Cavalca, Filippo, Hansen, Thomas W, Wagner, Jakob B, Nasibulin, Albert. G, Kauppinen, Esko I, Linnekoski, Juha, Niemelä, Marita, Lehtonen, Juha

“…Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using…”
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Field Effect Transistor Based on Solely Semiconducting Single‐Walled Carbon Nanotubes for the Detection of 2‐Chlorophenol by Chernov, Alexander I., Eremina, Valentina A., Shook, James, Collins, Aaron, Walker, Peter, Fedotov, Pavel V., Zakhidov, Alexander A., Obraztsova, Elena D.

“…We report a promoted sensitivity to 2‐chlorophenol (2‐CP) molecules of a fabricated back gated, interdigitated electrode field effect transistor based on…”
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Selective growth of SWNTs on partially reduced monometallic cobalt catalyst by He, Maoshuai, Chernov, Alexander I, Fedotov, Pavel V, Obraztsova, Elena D, Rikkinen, Emma, Zhu, Zhen, Sainio, Jani, Jiang, Hua, Nasibulin, Albert G, Kauppinen, Esko I, Niemelä, Marita, Krause, A Outi I

“…SiO(2) supported cobalt (Co) catalyst could be partially reduced and anchored by unreduced Co ions during a carbon monoxide (CO) chemical vapor deposition…”
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Oxygen Reduction by Lithiated Graphene and Graphene-Based Materials by Kataev, Elmar Yu, Itkis, Daniil M, Fedorov, Alexander V, Senkovsky, Boris V, Usachov, Dmitry Yu, Verbitskiy, Nikolay I, Grüneis, Alexander, Barinov, Alexei, Tsukanova, Daria Yu, Volykhov, Andrey A, Mironovich, Kirill V, Krivchenko, Victor A, Rybin, Maksim G, Obraztsova, Elena D, Laubschat, Clemens, Vyalikh, Denis V, Yashina, Lada V

“…Oxygen reduction reaction (ORR) plays a key role in lithium–air batteries (LABs) that attract great attention thanks to their high theoretical specific energy…”
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Chiral-selective growth of single-walled carbon nanotubes on stainless steel wires by He, Maoshuai, Fedotov, Pavel V., Obraztsova, Elena D., Viitanen, Ville, Sainio, Jani, Jiang, Hua, Kauppinen, Esko I., Niemelä, Marita, Lehtonen, Juha

“…Single-walled carbon nanotubes (SWCNTs) were successfully grown on calcined stainless steel wires at 700°C using CO as the carbon source. By contrast, the raw…”
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Printing of Crumpled CVD Graphene via Blister-Based Laser-Induced Forward Transfer by Komlenok, Maxim S, Pivovarov, Pavel A, Dezhkina, Margarita A, Rybin, Maxim G, Savin, Sergey S, Obraztsova, Elena D, Konov, Vitaly I

“…The patterning and transfer of a two-dimensional graphene film without damaging its original structure is an urgent and difficult task. For this purpose, we…”
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Low Temperature Growth of SWNTs on a Nickel Catalyst by Thermal Chemical Vapor Deposition by He, Maoshuai, Chernov, Alexander I., Obraztsova, Elena D., Sainio, Jani, Rikkinen, Emma, Jiang, Hua, Zhu, Zhen, Kaskela, Antti, Nasibulin, Albert G., Kauppinen, Esko I., Niemelä, Marita, Krause, Outi

“…Single-walled carbon nanotubes （SWNTs） have been grown on a silica-supported monometallic nickel （Ni） catalyst at temperatures ranging from as low as 450℃to…”
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Single-walled carbon nanotubes as a template for coronene stack formation by Chernov, Alexander I., Fedotov, Pavel V., Anoshkin, Ilya V., Nasibulin, Albert G., Kauppinen, Esko I., Kuznetsov, Vladimir L., Obraztsova, Elena D.

“…Single‐walled carbon nanotubes can serve as a template for formation of various structures inside. Depending on conditions, the nanotube filling with coronene…”
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Optical spectroscopy of iodine-doped single-wall carbon nanotubes of different diameter by Tonkikh, Alexander A., Obraztsova, Elena D., Obraztsova, Ekaterina A., Belkin, Alexey V., Pozharov, Anatolii S.

“…Single‐wall carbon nanotubes with polyiodide chains inside are interesting from two points of view. According to predictions, first, the iodine structure type…”
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The Effect of Alcohol Precipitants on Structural and Morphological Features and Thermal Properties of Lyocell Fibers by Makarov, Igor S., Golova, Lyudmila K., Vinogradov, Markel I., Levin, Ivan S., Shandryuk, Georgiy A., Arkharova, Natalia A., Golubev, Yaroslav V., Berkovich, Anna K., Eremin, Timofei V., Obraztsova, Elena D.

“…This research examines the possibilities of regulating the structure of cellulose precursor fibers spun from solutions in N-methylmorpholine-N-oxide when…”
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