Academic literature on the topic 'Catalytic Csp3−H activation'

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Journal articles on the topic "Catalytic Csp3−H activation"

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Muñoz-Molina, José María, Tomás R. Belderrain, and Pedro J. Pérez. "Recent Advances in Copper-Catalyzed Radical C–H Bond Activation Using N–F Reagents." Synthesis 53, no. 01 (2020): 51–64. http://dx.doi.org/10.1055/s-0040-1707234.

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This Short Review is aimed at giving an update in the area of copper-catalyzed C–H functionalization involving nitrogen-centered radicals generated from substrates containing N–F bonds. These processes include intermolecular Csp3–H bond functionalization, remote Csp3–H bond functionalization via intramolecular hydrogen atom transfer (HAT), and Csp2–H bond functionalization, which might be of potential use in industrial applications in the future.1 Introduction2 Intermolecular Csp3–H Functionalization3 Remote Csp3–H Functionalization4 Csp2–H Functionalization5 Conclusion
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Nahide, Pradip D., J. Oscar C. Jiménez-Halla, Katarzyna Wrobel, César R. Solorio-Alvarado, Rafael Ortiz Alvarado, and Berenice Yahuaca-Juárez. "Gold(i)-catalysed high-yielding synthesis of indenes by direct Csp3–H bond activation." Organic & Biomolecular Chemistry 16, no. 40 (2018): 7330–35. http://dx.doi.org/10.1039/c8ob02056f.

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Zhang, Lingling, Hong Yi, Jue Wang, and Aiwen Lei. "Visible-light induced oxidative Csp3–H activation of methyl aromatics to methyl esters." Green Chemistry 18, no. 19 (2016): 5122–26. http://dx.doi.org/10.1039/c6gc01880g.

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A mild and catalytic oxidative Csp<sup>3</sup>–H activation of methyl aromatics using O<sub>2</sub>via photocatalysis has been achieved. A lot of methyl aromatics can be tolerated, providing a route for aromatic methyl carboxylates. In addition, this protocol can be performed on a gram scale.
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Zhao, Hua, Hongjian Sun, and Xiaoyan Li. "Synthesis and Catalytic Property of Iron Pincer Complexes Generated by Csp3–H Activation." Organometallics 33, no. 13 (2014): 3535–39. http://dx.doi.org/10.1021/om500429r.

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Huang, Shaofeng, Hua Zhao, Xiaoyan Li, Lin Wang, and Hongjian Sun. "Synthesis of [POCOP]-pincer iron and cobalt complexes via Csp3–H activation and catalytic application of iron hydride in hydrosilylation reactions." RSC Advances 5, no. 20 (2015): 15660–67. http://dx.doi.org/10.1039/c5ra00072f.

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C<sub>sp3</sub>–H bond activation in pincer ligand (Ph<sub>2</sub>PO(o-C<sub>6</sub>H<sub>2</sub>-(4,6-<sup>t</sup>Bu<sub>2</sub>)))<sub>2</sub>CH<sub>2</sub> (1) (POCH<sub>2</sub>OP) was achieved by Fe(PMe<sub>3</sub>)<sub>4</sub> and CoMe(PMe<sub>3</sub>)<sub>4</sub> to afford (POCHOP)Fe(H) (PMe<sub>3</sub>)<sub>2</sub> (2) and (POCHOP)Co(PMe<sub>3</sub>)<sub>2</sub> (4).
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Greßies, Steffen, Felix J. R. Klauck, Ju Hyun Kim, Constantin G. Daniliuc, and Frank Glorius. "Ligand-Enabled Enantioselective Csp3 -H Activation of Tetrahydroquinolines and Saturated Aza-Heterocycles by RhI." Angewandte Chemie International Edition 57, no. 31 (2018): 9950–54. http://dx.doi.org/10.1002/anie.201805680.

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Artault, M., N. Mokhtari, T. Cantin, A. Martin-Mingot, and S. Thibaudeau. "Superelectrophilic Csp3–H bond fluorination of aliphatic amines in superacid: the striking role of ammonium–carbenium dications." Chemical Communications 56, no. 44 (2020): 5905–8. http://dx.doi.org/10.1039/d0cc02081h.

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Pacheco-Benichou, Alexandra, Eugénie Ivendengani, Ioannis K. Kostakis, Thierry Besson, and Corinne Fruit. "Copper-Catalyzed C–H Arylation of Fused-Pyrimidinone Derivatives Using Diaryliodonium Salts." Catalysts 11, no. 1 (2020): 28. http://dx.doi.org/10.3390/catal11010028.

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Copper-catalyzed Csp2–Csp2 bond forming reactions through C–H activation are still one of the most useful strategies for the diversification of heterocyclic moieties using various coupling partners. A catalytic protocol for the C–H (hetero)arylation of thiazolo[5,4-f]quinazolin-9(8H)-ones and more generally fused-pyrimidinones using catalyst loading of CuI with diaryliodonium triflates as aryl source under microwave irradiation has been disclosed. The selectivity of the transfer of the aryl group was also disclosed in the case of unsymmetrical diaryliodonium salts. Specific phenylation of valu
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Guo, Yong, Xiaming Zhao, Dazhi Zhang та Shun-Ichi Murahashi. "Iridium-Catalyzed Reactions of Trifluoromethylated Compounds with Alkenes: A Csp3H Bond Activation α to the Trifluoromethyl Group". Angewandte Chemie International Edition 48, № 11 (2009): 2047–49. http://dx.doi.org/10.1002/anie.200805852.

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Guo, Yong, Xiaming Zhao, Dazhi Zhang та Shun-Ichi Murahashi. "Iridium-Catalyzed Reactions of Trifluoromethylated Compounds with Alkenes: A Csp3H Bond Activation α to the Trifluoromethyl Group". Angewandte Chemie International Edition 48, № 25 (2009): 4467. http://dx.doi.org/10.1002/anie.200990130.

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Dissertations / Theses on the topic "Catalytic Csp3−H activation"

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Mokhtari, Naïma. "Fonctionnalisation de liaisons Csp3-H en milieu superacide." Thesis, Poitiers, 2015. http://www.theses.fr/2015POIT2308.

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L’un des principaux challenges actuels en synthèse organique est la fonctionnalisation de liaisons Csp3-H. Les difficultés rencontrées pour effectuer ce type de réactions résident notamment dans le caractère inerte de la liaison carbone-hydrogène et le contrôle des sites d’activations sur des molécules élaborées.Bien que l’utilisation de composés fluorés en chimie médicinale soit en pleine croissance, très peu de méthodes de fluoration directe de liaison Csp3-H de dérivés azotés existent.Cette étude visait à utiliser l’activation superélectrophile en milieu superacide pour fonctionnaliser des
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Gerdes, Gerd. "Catalytic C-H activation of benzene by plantinum(II) : a mechanistic study /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15631.

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Sankey, Rosalind Fay. "Beyond C-H activation : the preparation of novel heterocycles using catalytic dearomatisation." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.559388.

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The continuous drive for efficient bond forming reactions has led to the emergence of C-H activation methodologies. More specifically, direct arylation reactions are commonly employed in the synthesis of a range of heteroaromatic products. The latter make up a considerable proportion of medicinally important compounds and therefore their rapid and efficient synthesis is paramount. The preparation of carbazoles has been extensively developed within the Bedford group. The expansion of this palladium-catalysed intramolecular direct arylation methodology has been explored with the aim of producing
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Chappell, Benjamin Graham Neil. "A general catalytic β-C-H carbonylation of aliphatic amines to β-lactams". Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274756.

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Carbonyl compounds are of central importance to organic chemistry and their reactions have been described as the ‘backbone of organic synthesis’. Over recent decades, palladium-catalysed C–H carbonylation reactions have emerged as a powerful means of introducing carbonyl motifs to organic molecules. This thesis describes the development of a general C–H carbonylation reaction of secondary aliphatic amines, which provides facile access to synthetically useful β-lactam products. The first part of the thesis explores the scope and limitations of this reaction. Whilst previous C(sp3)–H carbonylati
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Li, Yingze. "Development of New Cobalt Pincer Complexes for Catalytic Reduction Reactions." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1554215914263187.

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Torigoe, Takeru. "New Molecular Transformations Based on Iridium-Catalyzed Activation of C(sp3)-H Bonds." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225636.

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Duchane, Christine Marie. "Synthesis, antimicrobial activity, and catalytic activity of rhodium and iridium piano stool complexes: Teaching an old dog new tricks." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/101016.

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This dissertation describes the synthesis, antimicrobial properties, and catalytic activity of a variety of eta5-ligand rhodium and iridium complexes. Cp*RM(beta-diketonato)Cl (Cp*R = R-substituted tetramethylcyclopentadienyl ligand) complexes were found to have selective activity against Mycobacterium smegmatis, with activity highly dependent upon the substituents on the Cp*R ligand as well as on the beta-diketonato ligand. These complexes were synthesized in good yield from the reaction of the chloro bridged dimers ([Cp*RMCl2]2) with the desired beta-diketonato ligand under basic conditions.
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Choi, Jong-Hoo [Verfasser], Martin H. G. [Akademischer Betreuer] Prechtl, Axel [Akademischer Betreuer] Klein, and George [Akademischer Betreuer] Britovsek. "Catalytic Activation of Small Molecules. Development and Characterisation of Ruthenium Complexes for Application in Catalysis / Jong-Hoo Choi. Gutachter: Martin H. G. Prechtl ; Axel Klein ; George Britovsek." Köln : Universitäts- und Stadtbibliothek Köln, 2015. http://d-nb.info/1082030503/34.

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Dietl, Nicolas Paul Richard [Verfasser], and Helmut [Akademischer Betreuer] Schwarz. "Gaseous Oxo-Clusters as Model Systems for C-H Bond Activation and Oxidation Processes – Towards a Better Understanding of Catalytic Mechanisms / Nicolas Paul Richard Dietl. Betreuer: Helmut Schwarz." Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2013. http://d-nb.info/1032313269/34.

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Coetzee, Jacorien. "Towards new catalytic systems for the formation of methyl methacrylate from methyl propanoate." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2585.

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The two stage Lucite Alpha Process for the industrial manufacturing of methyl methacrylate (MMA) represents one of the most efficient technologies currently available for the large scale production of this important chemical commodity. The second stage of this process, which involves the condensation of methyl propanoate (MeP) with formaldehyde over a heterogeneous fixed bed catalyst, however, still shows great scope for improvement. Herein the development of a novel homogeneous catalytic system that would promote the condensation of either propanoic acid or MeP with formaldehyde is explored.
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Books on the topic "Catalytic Csp3−H activation"

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Dixneuf, Pierre H., and Henri Doucet, eds. C-H Bond Activation and Catalytic Functionalization II. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29319-6.

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Dixneuf, Pierre H., and Henri Doucet, eds. C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24630-7.

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Catalytic Transformations Via C-H Activation 1. Thieme Verlag, George, 2016.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization II. Springer London, Limited, 2016.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization I. Springer, 2016.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization II. Springer, 2018.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization II. Springer, 2016.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization I. Springer, 2018.

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Dixneuf, Pierre H., and Henri Doucet. C-H Bond Activation and Catalytic Functionalization I. Springer London, Limited, 2015.

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Yu, Jin-Quan, Vy M. Dong, Peter K. Dornan, Vladimir Gevorgyan, and Cheng Chien-Hong. Science of Synthesis: Catalytic Transformations Via C-H Activation Vol. 1. Thieme Verlag, George, 2015.

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Book chapters on the topic "Catalytic Csp3−H activation"

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Tomin, Anna, Seema Bag, and Béla Török. "Catalytic CH Bond Activation Reactions." In Green Techniques for Organic Synthesis and Medicinal Chemistry. John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9780470711828.ch4.

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Kakiuchi, Fumitoshi, and Shinji Murai. "Activation of C-H Bonds: Catalytic Reactions." In Activation of Unreactive Bonds and Organic Synthesis. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-68525-1_3.

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Li, Jie, Suman De Sarkar, and Lutz Ackermann. "meta- and para-Selective C–H Functionalization by C–H Activation." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_130.

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Haber, Jerzy. "Theoretical Basis of the Activation of C-H Bond." In Catalytic Activation and Functionalisation of Light Alkanes. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-0982-8_7.

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Sommer, J., J. Bukala, M. Hachoumy, and R. Jost. "Superacid Catalysed Protolytic Activation, H/D Exchange and Oxidation of Small Alkanes." In Catalytic Activation and Functionalisation of Light Alkanes. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-0982-8_4.

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Bellina, Fabio. "Recent Developments in Pd-Catalyzed Direct Arylations of Heteroarenes with Aryl Halides." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_121.

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Kim, Jeung Gon, Kwangmin Shin, and Sukbok Chang. "Rh(III)- and Ir(III)-Catalyzed Direct C–H Bond Transformations to Carbon–Heteroatom Bonds." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_123.

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Carr, Kevin J. T., Stuart A. Macgregor, and Claire L. McMullin. "Computational Studies on Heteroatom-Assisted C–H Activation and Functionalisation at Group 8 and 9 Metal Centres." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_125.

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Dana, Suman, M. Ramu Yadav, and Akhila K. Sahoo. "Ruthenium-Catalyzed C−N and C−O Bond-Forming Processes from C−H Bond Functionalization." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_126.

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Wang, Guan-Wu. "Functionalization of [60]Fullerene via Palladium-Catalyzed C–H Bond Activation." In C-H Bond Activation and Catalytic Functionalization I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_128.

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Conference papers on the topic "Catalytic Csp3−H activation"

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Lian, T., S. E. Bromberg, H. Yang, M. Asplund, R. G. Bergman, and C. B. Harris. "Femtosecond IR Studies of Alkane C-H Bond Activation by Organometallic Compounds." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.fe.27a.

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The mechanism of alkane C-H bond activation by transition metal complexes such as CpM(CO)2 (M=Rh, Ir) has been intensely studied because it represents a first step in a catalytic process using unreactive hydrocarbons.[1] The bond activation reaction starts with the formation of monocarbonyl intermediates such as CpRh(CO). These species have been detected in the gas phase[2] and in liquefied rare Kr and Xe[3] by µs time resolved IR spectroscopy. Unfortunately, the subsequent oxidative insertion of CpRh(CO) into the C-H bond is not well understood due to its rapid rate and low quantum yield (~1%
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Taqwim, Mohammad Ahsani, and Susy Yunita Prabawati. "Adsorption Study of Activated Carbon from Coffee Grounds with H<sub>3</sub>PO<sub>4</sub> Activator as Silver (Ag) Adsorbent." In The 6th International Conference on Science and Engineering. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-ijw10t.

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Silver (Ag) is one of the heavy metal wastes in the silver industry. Silver metal (Ag) contamination has an impact on human health and the environment so that a metal waste treatment method is needed to minimize the impact. This study used coffee grounds as an adsorbent for silver metal (Ag). The purpose of this study was to determine the characteristics of the adsorbent functional groups, adsorption time stability, optimum adsorbent mass, type of adsorption isotherm, and adsorption free energy (ΔGoAds). Activated carbon was prepared through three processes, namely baking at 110 oC for 2 hours
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Björk, I., S. T. Olson, and J. D. Shore. "BINDING OF HEPARIN TO H-KININOGEN." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642853.

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The binding of heparin to kininogen was analyzed by competition of kininogen with anti thrombin for high-affinity heparin. Residual heparin binding to anti thrombin was quantified by the accelerating effect on the anti thrombin-thrombin reaction. The rate of the latter reaction was monitored by displacement of the fluorescent probe, p-aminobenzamidine, from the enzyme. A linear dependence of the observed pseudo-first-order rate constant (kobs) for the heparin-accelerated anti thrombin-thrombin reaction on heparin concentration was achieved by use of catalytic amounts (≤30 nM) of heparin, a 20-
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Amama, Placidus B., Jonathan E. Spowart, Andrey A. Voevodin, and Timothy S. Fisher. "Modified Magnesium Hydride and Calcium Borohydride for High-Capacity Thermal Energy Storage." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44133.

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MgH2 and Ca(BH4)2 are potential thermal energy storage (TES) materials that possess extraordinarily high inherent thermal energy densities of up to 2 MJ/kg. However, the high desorption temperatures at atmospheric pressure [&gt;300°C for Ca(BH4)2, &gt;400°C for MgH2] coupled with slow kinetics represent significant challenges for their use in TES. In order to address these challenges, the present work focuses on the development of new modification approaches based on nanostructuring via high-energy vibratory ball milling and catalytic enhancement using pure Ni and Ni alloys. Our work reveals t
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Gandrille, S., P. Priollet, L. Capron, M. Roncato, J. N. Fiessinger, and M. Aiach. "ASSOCIATION OF HEREDITARY DYSFIBRINOGENEMIA WITH PROTEIN C DEFICIENCY IN TWO PATIENTS WITH THROMBOTIC TENDENCY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644309.

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An abnormal fibrinogen was found to be associated with protein C deficiency in two unrelated patients. Both were symptomatic, one having severe complicated atherosclerosis, the other recurrent venous thrombosis. In both cases, the two abnormalities coexisted in several members of the family. The two abnormal fibrinogens (Poitiers and Argenteuil) were purified from the patients' plasma and compared to fibrinogens purified from several normal subjects. Polymerisation was abnormal in both cases in presence of reptilase and thrombin.The kinetic of proteolysis by plasmin was studied during 24 hours
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Jia, Fuming, Feng Xie, Hong Li, and Jianzhu Cao. "Generation and Distribution of Tritium in HTGRs and Review on the Tritiated Water Treatment Technologies." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66417.

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Tritium (H-3) can discharge mainly in the form of HT and/or HTO as gaseous and/or liquid waste into the environment from the nuclear power plant, and participate in the cycle among hydrosphere, atmosphere and biosphere, which would lead to the long-term radiological effects on organisms. Thus, in the daily operation of the nuclear power station, tritium became one of the most concerned nuclides in the source term analysis. In high temperature gas-cooled reactors (HTGRs), tritium was mainly generated by the ternary fission reaction of heavy nuclei in the fuel and neutron activation reaction of
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Sánchez, Daniel, Miguel Paez, Rocío Sierra, and Gerardo Gordillo. "Waste Tire Rubber Gasification Using Air Steam for Partial Oxidation and N2 as Carrier Gas." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95383.

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The high calorific value of rubber in waste tires (RWT) and its composition, similar to that of coal, make it a promising resource for thermal treatment. This paper assesses the potential of RWT for the production of syngas through thermal gasification using air and steam as oxidizing agents. Subsequent purification of the obtained syngas and its conversion to ammonia were also evaluated. The analysis started by grinding RWT samples and submitting them to thermogravimetric analysis (TGA), ultimate analysis (UA) and proximate analyses (PA). Through TGA data, a pyrolysis Activation Energy of 110
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Reports on the topic "Catalytic Csp3−H activation"

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Crabtree, Robert. Moving to Sustainable Metals: Multifunctional Ligands in Catalytic, Outer Sphere C-H, N-H and O-H Activation. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1171638.

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Phisalaphong, Muenduen. Development and characterization of activated carbon derived from bacterial cellulose (Year 2). Faculty of Engineering, Chulalongkorn University, 2018. https://doi.org/10.58837/chula.res.2018.82.

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Bacterial cellulose (BC) was investigated as a novel material for preparing activated carbons. BC was dried by heating and it was carbonized with a chemical activation process using phosphoric acid (H₃PO₄) as an activating agent at different temperatures (400, 500 and 600 °C). The properties of the activated carbons were characterized such as chemical property, structure, pore size, thermal property by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), N₂ -physisorption (BET), scanning electron microscopy (SEM) , thermal gravimetric (TGA). The obtained BC activated carbo
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