Academic literature on the topic 'Iron Carbide Nanoparticle'

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Journal articles on the topic "Iron Carbide Nanoparticle"

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Ziogas, Panagiotis, Athanasios B. Bourlinos, Jiri Tucek, Ondrej Malina, and Alexios P. Douvalis. "Novel Magnetic Nanohybrids: From Iron Oxide to Iron Carbide Nanoparticles Grown on Nanodiamonds." Magnetochemistry 6, no. 4 (2020): 73. http://dx.doi.org/10.3390/magnetochemistry6040073.

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The synthesis and characterization of a new line of magnetic hybrid nanostructured materials composed of spinel-type iron oxide to iron carbide nanoparticles grown on nanodiamond nanotemplates is reported in this study. The realization of these nanohybrid structures is achieved through thermal processing under vacuum at different annealing temperatures of a chemical precursor, in which very fine maghemite (γ-Fe2O3) nanoparticles seeds were developed on the surface of the nanodiamond nanotemplates. It is seen that low annealing temperatures induce the growth of the maghemite nanoparticle seeds
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Alahmadi, Mohammed, and Mohamed Siaj. "Graphene-Assisted Magnetic Iron Carbide Nanoparticle Growth." ACS Applied Nano Materials 1, no. 12 (2018): 7000–7005. http://dx.doi.org/10.1021/acsanm.8b01794.

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Aftandiliants, Y. G., and К. G. Lopatko. "Iron nanoparticle influence on the structure of improved structural steel and its properties." Metaloznavstvo ta obrobka metalìv 96, no. 4 (2020): 10–16. http://dx.doi.org/10.15407/mom2020.04.010.

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The results of the study of the effect of nanoparticles in the shell of iron oxide Fe2O3, which when injected into the melt and heated up to melt temperature is converted into oxide Fe3O4, on the microstructure of hardened and tempered steel 25GSL and its properties. It is shown that in modified steel martensite crystals thickness is reduced compared to the original steel in average 1.9 times after the quenching, tempered martensite crystal length after tempering hardened steel at 200oC - 3 times, the plate cementite length in troostite after tempering hardened steel at 450 оС – 1,4 times, the
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Zhou, Ming, Hsing-Lin Wang, and Shaojun Guo. "Towards high-efficiency nanoelectrocatalysts for oxygen reduction through engineering advanced carbon nanomaterials." Chemical Society Reviews 45, no. 5 (2016): 1273–307. http://dx.doi.org/10.1039/c5cs00414d.

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We summarize and discuss recent developments of different-dimensional advanced carbon nanomaterial-based noble-metal-free high-efficiency oxygen reduction electrocatalysts, including heteroatom-doped, transition metal-based nanoparticle-based, and especially iron carbide (Fe<sub>3</sub>C)-based carbon nanomaterial composites.
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Rocky, Bahrum Prang, Christopher R. Weinberger, Steven R. Daniewicz, and Gregory B. Thompson. "Carbide Nanoparticle Dispersion Techniques for Metal Powder Metallurgy." Metals 11, no. 6 (2021): 871. http://dx.doi.org/10.3390/met11060871.

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Nanoparticles (NP) embedded into a matrix material have been shown to improve mechanical properties such as strength, hardness, and wear-resistance. However, the tendency of NPs to agglomerate in the powder mixing process is a major concern. This study investigates five different mechanochemical processing (MCP) routes to mitigate agglomeration to achieve a uniform dispersion of ZrC NPs in an Fe-based metal matrix composite. Our results suggest that MCP with only process controlling agents is ineffective in avoiding aggregation of these NPs. Instead, the uniformity of the carbide NP dispersion
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Hasan, Murtaza, Huma Gulzar, Ayesha Zafar, et al. "Multiplexing surface anchored functionalized iron carbide nanoparticle: A low molecular weight proteome responsive nano-tracer." Colloids and Surfaces B: Biointerfaces 203 (July 2021): 111746. http://dx.doi.org/10.1016/j.colsurfb.2021.111746.

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Khare, Varsha, Alexander Kraupner, Alexandre Mantion, et al. "Stable Iron Carbide Nanoparticle Dispersions in [Emim][SCN] and [Emim][N(CN)2] Ionic Liquids." Langmuir 26, no. 13 (2010): 10600–10605. http://dx.doi.org/10.1021/la100775m.

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Narkiewicz, U., N. Guskos, W. Arabczyk, et al. "XRD, TEM and magnetic resonance studies of iron carbide nanoparticle agglomerates in a carbon matrix." Carbon 42, no. 5-6 (2004): 1127–32. http://dx.doi.org/10.1016/j.carbon.2003.12.069.

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Chen, Xiaojun, Zhiming Su, Li Zhang, et al. "Iron Nanoparticle-Containing Silicon Carbide Fibers Prepared by Pyrolysis of Fe(CO)5-Doped Polycarbosilane Fibers." Journal of the American Ceramic Society 93, no. 1 (2010): 89–95. http://dx.doi.org/10.1111/j.1551-2916.2009.03369.x.

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Zhao, Fan, Jing Yu, Weiliang Gao, et al. "H2O2-independent chemodynamic therapy initiated from magnetic iron carbide nanoparticle-assisted artemisinin synergy." RSC Advances 11, no. 59 (2021): 37504–13. http://dx.doi.org/10.1039/d1ra04975e.

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Chemodynamic therapy (CDT) is a booming technology that utilizes Fenton reagents to kill tumor cells by transforming intracellular H2O2 into reactive oxygen species (ROS), but insufficient endogenous H2O2 makes it difficult to attain satisfactory antitumor results.
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Dissertations / Theses on the topic "Iron Carbide Nanoparticle"

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Kraupner, Alexander. "Neuartige Synthese magnetischer Nanostrukturen: Metallcarbide und Metallnitride der Übergangsmetalle Fe/Co/Ni." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5231/.

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Magnetische Nanopartikel bieten ein großes Potential, da sie einerseits die Eigenschaften ihrer Bulk-Materialien besitzen und anderseits, auf Grund ihrer Größe, über komplett unterschiedliche magnetische Eigenschaften verfügen können; Superparamagnetismus ist eine dieser Eigenschaften. Die meisten etablierten Anwendungen magnetischer Nanopartikel basieren heutzutage auf Eisenoxiden. Diese bieten gute magnetische Eigenschaften, sind chemisch relativ stabil, ungiftig und lassen sich auf vielen Synthesewegen relativ einfach herstellen. Die magnetischen Eigenschaften der Eisenoxide sind materialab
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Williams, Brent M. "Synthesis, characterization, and enhanced magnetic properties of iron carbide nanomaterials." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/5007.

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Permanent magnets are classified as hard magnetic materials with the main purpose of generating flux for applications such as electric motors, turbines, and hard drives. High coercivity, magnetic remanence, and saturation values with high stability are some of the requirements for permanent magnets. Rare-earth magnets including neodymium and samarium based magnets are known to have superior magnetic properties due to their high magnetocrystalline anisotropy. However, due to the price of rare-earth materials development of alternate permanent magnets composed of inexpensive materials is an ongo
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Martinêz, Gustavo Adolfo Lopez. "Síntese de nanopartículas magnéticas com elevada magnetização de saturação e estabilidade química." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-30072013-093936/.

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Atualmente, o desenvolvimento de nanopartículas (NPs) magnéticas vem recebendo muito interesse da comunidade científica, devido à versatilidade de aplicações, principalmente em biomedicina como diagnóstico e terapia. Para tais aplicações e desejável que as NPs apresentem comportamento superparamagnético e alta magnetização de saturação (Ms). Neste contexto, existe preferência pela utilização de NPs de óxidos de ferro (maghemita e magnetita), devido à baixa toxicidade destes, quando comparadas com as NPs metálicas. No entanto, esses materiais apresentam baixo valor de Ms, o que pelo menos limit
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Liu, Xiao Jie. "Synthesis of magnetic nanoparticles and carbon based nanohybrid materials for biomedical and energy application." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF055/document.

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Les travaux de cette thèse ont été consacrés à la synthèse de nanoparticules magnétiques d'oxyde de fer et d'oxyde de cobalt et de nanoparticules coeur-coquille constituées d'un coeur d'oxyde de fer recouvert d'oxyde de cobalt et à l'élaboration de nanomatériaux - composites nanostructures carbonées/nanoparticules d'oxyde métallique - pour des applications dans le domaine biomédical et celui de l'énergie. Pour la synthèse des NPs, la forme et la taille des NPs sont fortement dépendantes des conditions de réaction (nature des ligands, des solvants, température de réaction ... ) , ce qui affecte
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Shekhar, Shashank. "Electrical And Magnetic Properties Of Polyvinylchloride - Amorphous Carbon / Iron Carbide Nanoparticle Comosites." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/500.

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The UV-Visible spectra of a-C composites and nano composites have provided a very useful information about the electronic states and band structure. The UV-Visible spectra of a-C as well as nanoparticle are qualitatively similar. They do not show any absorption cutoff in wavelength (_max). In fact they are good absorbers of UV-Visible light in whole range. Composites show some absorptions which could be the combined effect of filler as we as host matrix. Since there is no _max, hence it is very unlikely to define any optical band gap. The nanoparticle is a good absorber in midinfrared compare
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Shekhar, Shashank. "Electrical And Magnetic Properties Of Polyvinylchloride - Amorphous Carbon / Iron Carbide Nanoparticle Comosites." Thesis, 2007. http://hdl.handle.net/2005/500.

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The UV-Visible spectra of a-C composites and nano composites have provided a very useful information about the electronic states and band structure. The UV-Visible spectra of a-C as well as nanoparticle are qualitatively similar. They do not show any absorption cutoff in wavelength (_max). In fact they are good absorbers of UV-Visible light in whole range. Composites show some absorptions which could be the combined effect of filler as we as host matrix. Since there is no _max, hence it is very unlikely to define any optical band gap. The nanoparticle is a good absorber in midinfrared compared
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Sajitha, E. P. "Mossbauer, Magnetization And Electrical Transport Studies On Iron Nanoparticles Embedded In The Carbon Matrix." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/594.

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This thesis deals with the studies of magnetization and electrical transport properties of iron nanoparticles embedded in the carbon matrix. The synthesis and characteristics of the nanoparticle systems studied, are also presented. Carbon-iron (C-Fe) based systems are of growing interest due to their improved magnetic properties as well as in their potential application as sensors, catalysts, and in various other applications. In particular, nanocomposites of iron carbide, such as the cementite phase Fe3C, are further suited to diverse technological exploitations due to their enhanced mecha
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Sajitha, E. P. "Mossbauer, Magnetization And Electrical Transport Studies On Iron Nanoparticles Embedded In The Carbon Matrix." Thesis, 2007. http://hdl.handle.net/2005/594.

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This thesis deals with the studies of magnetization and electrical transport properties of iron nanoparticles embedded in the carbon matrix. The synthesis and characteristics of the nanoparticle systems studied, are also presented. Carbon-iron (C-Fe) based systems are of growing interest due to their improved magnetic properties as well as in their potential application as sensors, catalysts, and in various other applications. In particular, nanocomposites of iron carbide, such as the cementite phase Fe3C, are further suited to diverse technological exploitations due to their enhanced mechan
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Neilson, Bethany Margaret. "Photoswitching the donating and catalytic properties of N-heterocyclic carbenes and the design of functional co-polymers for stabilization of iron oxide nanoparticles." Thesis, 2013. http://hdl.handle.net/2152/25163.

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In an effort to develop broadly applicable photoswitchable catalysts, we have reported a method for modulating N-heterocyclic carbene (NHC) donicity using light by incorporating a photochromic diarylethene (DAE) into the backbone of a NHC scaffold. UV irradiation of 4,5-dithienylimidazolone or an analogous NHC-Ir(CO)₂Cl complex effected a photocyclization between the two thiophene rings, which led to a change in the electron donating ability of the NHC scaffold. Subsequent exposure to visible light reversed the photocyclization reaction. The concept of photo-modulating NHC donicity in this man
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Book chapters on the topic "Iron Carbide Nanoparticle"

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Zavala Rivera, Paul, Jesús Armando Lucero Acuña, Patricia Guerrero Germán, Aaron de Jesús Rosas Durazo, Lizbeth Alcantara Bastida, and Anya Isabel Argüelles Pesqueira. "Iron Carbide@Iron Oxide Core-Shell Nanoparticles Functionalization with L-Arginine Amphiphillic Bioconjugate." In IFMBE Proceedings. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18256-3_72.

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Matsue, T., Y. Yamada, and Y. Kobayashi. "Iron carbide nanoparticles produced by laser ablation in organic solvent." In ICAME 2011. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-4762-3_27.

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Fraś, Edward, J. Głownia, E. Guzik, and H. F. Lopez. "Synthesis of Nanoparticles of Vanadium Carbide in the Ferrite of Nodular Cast Iron." In Solid State Phenomena. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-02-7.325.

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Schneeweiss, O., R. Zbořil, B. David, M. Heřmánek, and M. Mashlan. "Solid-state synthesis of α-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3." In ISIAME 2008. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01370-6_21.

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van Leeuwen, Piet W. N. M. "Organometallic Chemistry and Elementary Steps." In Contemporary Catalysis: Science, Technology, and Applications. The Royal Society of Chemistry, 2017. http://dx.doi.org/10.1039/9781849739900-00087.

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The entire science of chemistry can be thought of as the underlying knowledge of catalysis, since each conversion can be subjected to catalysis, each material might function as a catalyst, each spectroscopic technique may prove useful one day in catalysis, and catalytic processes are amongst the most intriguing theoretical targets. Yet, in only a small number of pages, we will outline here what we think are the key underlying principles for catalysis. The organometallic chemistry we discuss in this chapter deals with the most often used concepts of chemical bonding related to catalysis and the organometallic reactions most frequently encountered in mechanistic treatments of catalytic reactions. For an elaborate treatment of elementary steps, the reader is referred to a specialized textbook. As the title suggests, we will mainly deal with homogeneous processes, but the same elementary reactions can also take place at the surface of solid catalysts or nanoparticles. In particular, metals or metal carbides show additional reactions that have no close analogues in organometallic chemistry, such as the dissociation of adsorbed CO in Fe or iron carbide catalysts.
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Conference papers on the topic "Iron Carbide Nanoparticle"

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Sadhanala, Hari Krishna, and Karuna Kar Nanda. "Air stable iron/iron carbide magnetic nanoparticles embedded in amorphous carbon globules." In NANOFORUM 2014. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4918247.

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Вызулин, Sergey Vyzulin, Кевралетин, Aleksandr Kevraletin, Сырьев, and Nikolay Syrev. "Magnetic resonance properties of nano granular magnetic films with carbon matrix." In XXIV International Conference. Infra-m, 2016. http://dx.doi.org/10.12737/22883.

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We investigated granular magnetic resonance characteristics nanocomposite magnet systems (CoFeB)m-С100-m and и (CoFeB)m-(SiO2)100-m. The ferromagnetic resonance spectrum of the samples (CoFeB)m-С100-m extra observed (compared with the system (CoFeB)m-(SiO2)100-m) of the absorption line. Analysis of experimental data shows that the dominant factor in determining the characteristics of the magnetic resonance system (CoFeB)m-С100-m, synthesized by the method of ion-plasma spraying is the formation for the synthesis of nanoparticles of iron carbide and/or cobalt.
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