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Letteratura scientifica selezionata sul tema "Tellurium"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Tellurium"

1

Muthu, Arjun, Daniella Sári, Aya Ferroudj, Hassan El-Ramady, Áron Béni, Khandsuren Badgar e József Prokisch. "Microbial-Based Biotechnology: Production and Evaluation of Selenium-Tellurium Nanoalloys". Applied Sciences 13, n. 21 (26 ottobre 2023): 11733. http://dx.doi.org/10.3390/app132111733.

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Using seleno-compounds and telluric compounds is a practical approach for developing solutions against drug-resistant bacterial infections and malignancies. It will accelerate the search for novel treatments or adjuvants for existing therapies. Selenium and tellurium nanospheres can be produced by lactic acid bacteria. The bacteria can differentiate the selenium and tellurium when the medium contains both selenite and tellurite. Therefore, our question in this study was the following: are they making alloys from the selenium and tellurium and what will be the composition, color, and shape of the nanoparticles? We used a simple microbial synthesis to produce nanoselenium, nanotellurium, and their alloys from sodium selenite and sodium tellurite using Lactobacillus casei. This bacterium produced red spherical amorphous elemental selenium nanospheres with a diameter of 206 ± 33 nm from selenite and amorphous black nanorods with a length of 176 ± 32 nm and a cross-section of 62 ± 13 nm from tellurite. If the initial medium contains a mixture of selenite and tellurite, the resulting nanoparticles will contain selenium and tellurium in the same ratios in the alloy as in the medium. This proves that Lactobacillus casei cannot distinguish between selenite and tellurite. The shape of the nanoparticles varies from spherical to rod-shaped, depending on the ratio of selenium and tellurium. The color of nanomaterials ranges from red to black, depending on the percentage of selenium and tellurium. These nanomaterials could be good candidates in the pharmaceutical industry due to their antipathogenic and anticarcinogenic properties.

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2

Aleksiichuk, О. Yu, V. S. Tkachishin, V. Ye Kondratyuk, О. M. Arustamyan e I. V. Dumka. "Poisoning from tellurium and its toxic compounds in industry". EMERGENCY MEDICINE 17, n. 6 (10 gennaio 2022): 6–11. http://dx.doi.org/10.22141/2224-0586.17.6.2021.242321.

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Tellurium has been primarily used in the steel industry for the past 40 years. This material is used for the manufacture of solar cells, lasers, photoresistors, and counters of radioactive radiation. Cadmium tellurium batteries are the second most popular solar technology. Another important application of tellurium is in the manufacture of thermoelectric generators. In the metallurgical industry, tellurium is used as an additive to metals and alloys. Tellurium and its compounds enter the body mainly through the respiratory system, as well as through the mouth and skin. Penetration into the body through the respiratory tract causes nausea, bronchitis, and pneumonia. The tellurium compounds are restored to elementary tellurium or amenable to methylation (methyl telluride has a characteristic garlic odor; it is less toxic than tellurium) in the body. Tellurium is excreted through the kidneys and gastrointestinal tract. Methyl telluride is excreted from the body partially with exhaled air and with sweat. For the diagnosis of acute heavy metal poisoning, blood is mainly used. The use of updated algorithm-criteria for assessing the severity of clinical manifestations of systemic organ toxicity of poisons provides an appropriate level of diagnosis of disorders of vital body functions. Treatment of such patients should include antidote and symptomatic therapy depending on the severity of clinical manifestations. To prevent the development of telluric intoxication, first of all, it is necessary to apply maximum sealing and automation of production processes. It is also necessary to introduce ventilation in production facilities and to carry out preliminary and periodic medical examinations of workers without fail. The use of personal protective equipment is also required.

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3

Ollivier, Patrick R. L., Andrew S. Bahrou, Sarah Marcus, Talisha Cox, Thomas M. Church e Thomas E. Hanson. "Volatilization and Precipitation of Tellurium by Aerobic, Tellurite-Resistant Marine Microbes". Applied and Environmental Microbiology 74, n. 23 (10 ottobre 2008): 7163–73. http://dx.doi.org/10.1128/aem.00733-08.

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ABSTRACT Microbial resistance to tellurite, an oxyanion of tellurium, is widespread in the biosphere, but the geochemical significance of this trait is poorly understood. As some tellurite resistance markers appear to mediate the formation of volatile tellurides, the potential contribution of tellurite-resistant microbial strains to trace element volatilization in salt marsh sediments was evaluated. Microbial strains were isolated aerobically on the basis of tellurite resistance and subsequently examined for their capacity to volatilize tellurium in pure cultures. The tellurite-resistant strains recovered were either yeasts related to marine isolates of Rhodotorula spp. or gram-positive bacteria related to marine strains within the family Bacillaceae based on rRNA gene sequence comparisons. Most strains produced volatile tellurides, primarily dimethyltelluride, though there was a wide range of the types and amounts of species produced. For example, the Rhodotorula spp. produced the greatest quantities and highest diversity of volatile tellurium compounds. All strains also produced methylated sulfur compounds, primarily dimethyldisulfide. Intracellular tellurium precipitates were a major product of tellurite metabolism in all strains tested, with nearly complete recovery of the tellurite initially provided to cultures as a precipitate. Different strains appeared to produce different shapes and sizes of tellurium containing nanostructures. These studies suggest that aerobic marine yeast and Bacillus spp. may play a greater role in trace element biogeochemistry than has been previously assumed, though additional work is needed to further define and quantify their specific contributions.

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4

Du Mont, Wolf W., Jörg Jeske e Peter G. Jones. "Telluronium Salts Involving Hypervalent Tellurium-Tellurium Interactions". Phosphorus, Sulfur, and Silicon and the Related Elements 136, n. 1 (1 gennaio 1998): 305–8. http://dx.doi.org/10.1080/10426509808545956.

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5

Tanaka, Masayoshi, Atsushi Arakaki, Sarah S. Staniland e Tadashi Matsunaga. "Simultaneously Discrete Biomineralization of Magnetite and Tellurium Nanocrystals in Magnetotactic Bacteria". Applied and Environmental Microbiology 76, n. 16 (25 giugno 2010): 5526–32. http://dx.doi.org/10.1128/aem.00589-10.

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ABSTRACT Magnetotactic bacteria synthesize intracellular magnetosomes comprising membrane-enveloped magnetite crystals within the cell which can be manipulated by a magnetic field. Here, we report the first example of tellurium uptake and crystallization within a magnetotactic bacterial strain, Magnetospirillum magneticum AMB-1. These bacteria independently crystallize tellurium and magnetite within the cell. This is also highly significant as tellurite (TeO3 2−), an oxyanion of tellurium, is harmful to both prokaryotes and eukaryotes. Additionally, due to its increasing use in high-technology products, tellurium is very precious and commercially desirable. The use of microorganisms to recover such molecules from polluted water has been considered as a promising bioremediation technique. However, cell recovery is a bottleneck in the development of this approach. Recently, using the magnetic property of magnetotactic bacteria and a cell surface modification technology, the magnetic recovery of Cd2+ adsorbed onto the cell surface was reported. Crystallization within the cell enables approximately 70 times more bioaccumulation of the pollutant per cell than cell surface adsorption, while utilizing successful recovery with a magnetic field. This fascinating dual crystallization of magnetite and tellurium by magnetotactic bacteria presents an ideal system for both bioremediation and magnetic recovery of tellurite.

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6

Presentato, Alessandro, Raymond J. Turner, Claudio C. Vásquez, Vladimir Yurkov e Davide Zannoni. "Tellurite-dependent blackening of bacteria emerges from the dark ages". Environmental Chemistry 16, n. 4 (2019): 266. http://dx.doi.org/10.1071/en18238.

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Environmental contextAlthough tellurium is a relatively rare element in the earth’s crust, its concentration in some niches can be naturally high owing to unique geology. Tellurium, as the oxyanion, is toxic to prokaryotes, and although prokaryotes have evolved resistance to tellurium, no universal mechanism exists. We review the interaction of tellurite with prokaryotes with a focus on those unique strains that thrive in environments naturally rich in tellurium. AbstractThe timeline of tellurite prokaryotic biology and biochemistry is now over 50 years long. Its start was in the clinical microbiology arena up to the 1970s. The 1980s saw the cloning of tellurite resistance determinants while from the 1990s through to the present, new strains were isolated and research into resistance mechanisms and biochemistry took place. The past 10 years have seen rising interest in more technological developments and considerable advancement in the understanding of the biochemical mechanisms of tellurite metabolism and biochemistry in several different prokaryotes. This research work has provided a list of genes and proteins and ideas about the fundamental metabolism of Te oxyanions. Yet the biomolecular mechanisms of the tellurite resistance determinants are far from established. Regardless, we have begun to see a new direction of Te biology beyond the clinical pathogen screening approaches, evolving into the biotechnology fields of bioremediation, bioconversion and bionanotechnologies and subsequent technovations. Knowledge on Te biology may still be lagging behind that of other chemical elements, but has moved beyond its dark ages and is now well into its renaissance.

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7

Jayasekera, S., IM Ritchie e J. Avraamides. "A Cyclic Voltammetric Study of the Dissolution of Tellurium". Australian Journal of Chemistry 47, n. 10 (1994): 1953. http://dx.doi.org/10.1071/ch9941953.

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A cyclic voltammetric study of the oxidation and reduction of elemental tellurium over the pH range 0-14 has been undertaken with tellurium disk electrodes which could be rotated. In both oxidation and reduction, the behaviour of tellurium is largely that expected from the predictions of the E-pH diagram for this element. Exceptions to this general principle were observed during the oxidation of tellurium at both low and high pH where it was found that tellurous acid was relatively quick to form and slow to dissolve; this led to a type of passivation behaviour. On the reduction side, the system behaved in a complex, fashion between pH 8 and 11 with both HTe - and Te22- being formed.

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8

Kucharski, M., P. Madej, M. Wedrychowicz, T. Sak e W. Mróz. "Recovery of Tellurium From Sodium Carbonate Slag". Archives of Metallurgy and Materials 59, n. 1 (1 marzo 2014): 51–57. http://dx.doi.org/10.2478/amm-2014-0009.

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Abstract This study is devoted to tellurium recovery from sodium carbonate slag, formed in the fire refining process of crude silver. The slag was modified by silica additions and then reduced by carbon oxide. The degree of the slag modification was defined by the parameter kw: where:ni- the mole numbers of silica, sodium carbonate and sodium oxide. The compositions of the investigated slag determined by the parameter kw and the mole fraction of the tellurium oxide (xTeO2 ) are given in the following Table. The reduction of tellurium was very fast for all the investigated slags, which was manifested by an almost complete conversion of CO into CO2. Unfortunately, at the same time, a side reaction took place, and as a results sodium telluride was formed, which reported to the slag: (Na2O)slag + Te(g) + CO = (Na2Te)slag + CO2 The tellurium content in the reduced slag decreases as the parameter kw increases, and only the slag with the kw equal unity was suitable for the tellurium recovery in form of dusts, containing more than 76 wt-% tellurium.

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9

Bi, Congzhi, Tianyu Wu, Jingjing Shao, Pengtao Jing, Hai Xu, Jilian Xu, Wenxi Guo, Yufei Liu e Da Zhan. "Evolution of the Electronic Properties of Tellurium Crystals with Plasma Irradiation Treatment". Nanomaterials 14, n. 9 (25 aprile 2024): 750. http://dx.doi.org/10.3390/nano14090750.

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Tellurium exhibits exceptional intrinsic electronic properties. However, investigations into the modulation of tellurium’s electronic properties through physical modification are notably scarce. Here, we present a comprehensive study focused on the evolution of the electronic properties of tellurium crystal flakes under plasma irradiation treatment by employing conductive atomic force microscopy and Raman spectroscopy. The plasma-treated tellurium experienced a process of defect generation through lattice breaking. Prior to the degradation of electronic transport performance due to plasma irradiation treatment, we made a remarkable observation: in the low-energy region of hydrogen plasma-treated tellurium, a notable enhancement in conductivity was unexpectedly detected. The mechanism underlying this enhancement in electronic transport performance was thoroughly elucidated by comparing it with the electronic structure induced by argon plasma irradiation. This study not only fundamentally uncovers the effects of plasma irradiation on tellurium crystal flakes but also unearths an unprecedented trend of enhanced electronic transport performance at low irradiation energies when utilizing hydrogen plasma. This abnormal trend bears significant implications for guiding the prospective application of tellurium-based 2D materials in the realm of electronic devices.

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10

Nitsenko, A. V., V. N. Volodin, X. A. Linnik, F. Kh Tuleutay e N. M. Burabaeva. "Distillation recovery of tellurium from copper telluride in oxide forms". Izvestiya Vuzov. Tsvetnaya Metallurgiya (Universities' Proceedings Non-Ferrous Metallurgy) 28, n. 4 (18 agosto 2022): 45–54. http://dx.doi.org/10.17073/0021-3438-2022-4-45-54.

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The paper presents the results of studies into tellurium extraction from its compounds with copper in the form of oxides by the pyrometallurgical method. Commercial copper telluride of Kazakhmys Corporation LLP containing crystalline phases, wt.%: Cu7Te4 – 36.5; Cu5Te3 – 28.5; Cu2Te – 12.9; Cu2.5SO4(OH)3·2H2O – 16.2 and Cu3(SO4)(OH)4 – 6.0 was used as an object of research. The physical and chemical research and technology experiments showed the fundamental possibility of commercial copper telluride processing by oxidative distillation roasting with the extraction of tellurium into a separate product. Air oxygen was used as an oxidant. It was established that a pressure decrease in the range of 80–0.67 kPa at the same temperature entails an increase in the degree of tellurium extraction. However, the tellurium extraction degree (93.0–98.0 %) at all pressures (within 1 hour) acceptable from the technology point of view is achieved at 1100 °C. Increasing the exposure to 3 hours has a minor beneficial effect. Diffractometric studies of cinders from technology experiments showed a decrease in the content of copper oxides in the pressure range of 80–40 kPa and an increase in the Cu3TeO6 phase content. With a subsequent increase in rarefaction from 40 to 0.67 kPa, there is a noticeable decrease in the amount of cuprite and, as a consequence, a sharp increase in the amount of cuprous oxide. A slowdown in the increase of the copper tellurate volume was noted at pressures of 40–20 kPa, and a sharp drop in its content at pressures below 13.3 kPa. The derived condensate is a free-flowing mixture of crystalline phases of tellurium dioxide (67.7 %) and tellurium oxysulfate (32.3 %). This condensate is a middling product for further production of elemental tellurium.

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Più fonti

Tesi sul tema "Tellurium"

1

Rooms, John Frederick. "A matrix isolation investigation of tellurium crochemistry using hydrogen telluride and tellurium dimers as precursors". Thesis, University of Hull, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419789.

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2

Pathirana, Hema M. K. K. "Ligand chemistry of tellurium". Thesis, Aston University, 1985. http://publications.aston.ac.uk/14516/.

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3

West, Anthony A. "Structural studies in tellurium chemistry". Thesis, Aston University, 1989. http://publications.aston.ac.uk/9705/.

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The primary theme of this research was the characterisation of new and novel organo-tellurium complexes, using the technique of single crystal X-ray analysis to establish more firmly the various coordination modes of tellurium. In each study the unit cell dimensions and intensity data were collected using an Enraf-Nonius CAD-4, four circle diffractometer. The raw data collected in turn was transferred to the Birmingham University Honeywell Multics System and processed using the appropriate computer packages for the determination of crystal structures. The molecular and crystal structures of: bis[2-(2-pyridyl)phenyl]tritelluride, bis[2-(N-hydroxy)iminophenyl] ditelluride, 2-(2-pyridyl)phenyltellurium(IV) tribromide, (2-N,N-dimethylbenzylamine-C,N')tellurium(IV)tribromide, 2-dichloro(butyl)tellurobenzaldehyde, 2-dichlorobutotelluro-N-dimethylbenzyl ammonium chloride, dimethyldithiocarbamato[2-(2-pyridyl)phenyl]tellurium(II), dimethyldithiocarbamato[2-(2-quinolinyl)phenyl]tellurium(II) and para-ethoxypheny[2-(2-pyridyl)phenyl]telluride are described. In each structure, the Lewis acidity of tellurium appears to be satisfied by autocomplex formation, through short-range intramolecular secondary bonds between tellurium and an electron denoting species, (generally nitrogen in these structures) with long range weak inter molecular contacts forming in the majority of the tellurium(IV) structures. The order of Lewis acidity in each structure can be considered to be reflected by the length of the short range intramolecular secondary bond, identified, that is, when tellurium has a low Lewis acidity this interaction is long. Interestingly, no primary bonds are found trans to a Te-C covalent bond in any of the above structures, highlighting the strong trans effect of aromatic and aryl groups in tellurium complexes.

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4

Swan, R. "Experimental studies of thin tellurium films". Thesis, London South Bank University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618631.

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5

Swan, Ronnie. "Experimental studies of thin tellurium films". Thesis, London South Bank University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316966.

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6

Espinosa, Ortiz Erika. "Bioreduction of selenite and tellurite by Phanerochaete chrysosporium". Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1193/document.

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Le sélénium et le tellurium partagent des propriétés chimiques communes et appartiennent à la colonne des éléments chalcogènes de la classification périodique des éléments. Ces métalloïdes ont des propriétés physico-chimiques remarquables et ils ont été utilisés dans un grand nombre d'applications dans le domaine des hautes technologies (électronique, semi-conducteurs, alliages). Ces éléments, qui se retrouvent généralement sous formes d'oxyanions, sont extrêmement solubles dans l'eau et présentent une forte toxicité. Leur libération dans l'environnement est donc d'un enjeu capital. Différentes méthodes physico-chimiques ont été développées pour la récupération de ces metalloïdes, en particulier pour le sélénium. Néanmoins, ces méthodes requièrent un équipement lourd et couteux et ne sont pas très recommandables sur le plan écologique. Le traitement biologique est donc une bonne alternative pour la récupération de Se et de Te provenant des effluents pollués. Cette approche réside dans la bioréduction des différents oxyanions sous formes métalliques. Ceux-ci sont moins toxiques et d'intérêts commerciales notables surtout lorsqu'ils se présentent sous forme nanométrique. L'utilisation de micro-champignons comme microorganismes catalyseur de la réduction de Se et de Te a été démontrée dans cette étude. La réactivité du champignon responsable de la pourriture blanche, Phanerochaete chrysosporium en présence de sélénite et de tellurite a été évaluée, ainsi que son application potentielle pour le traitement des eaux contaminées et la production de nanoparticules. La présence de Se et de Te a une influence importante sur la croissance et la morphologie du champignon. Il s'avère que P. chrysosporium est très sensible à la présence de sélénites. La synthèse de Se° et de Te° sous forme de nanoparticules piégées dans la biomasse fongique a été observée, ainsi que la formation de nano-composites Se-Te lorsque le champignon était cultivé simultanément en présence des deux métalloïdes. L'usage potentiel de biofilm fongiques pour le traitement des effluents semi-acides (pH 4.5) contenant du Se et du Te a été suggéré. De plus, le traitement en mode continu de sélénite dans un réacteur à biofilm fongique granulaire a été évalué. Le réacteur a montré un rendement d'élimination du sélénium en régime permanent de 70% pour differentes conditions opératoires. Celui-ci s'est montré efficace pendant une période supérieure à 35 jours. La bonne sédimentation du biofilm granulaire facilite la séparation du sélénium de l'effluent traité. L'utilisation du biofilm granulaire contenant du sélénium élémentaire comme bio-sorbant a également été étudiée. Cet adsorbant hybride s'est montré prometteur pour l'immobilisation du zinc présent dans les effluents semi-acides. La plupart des recherches effectuées se sont focalisées sur l'utilisation des biofilms granulaires. Toutefois, la croissance du champignon suite à l'exposition à des concentrations différentes de sélénites a également été étudiée. Des micro-électrodes à oxygène et un microscope confocal à balayage laser ont été utilisées pour évaluer l'effet du sélénium sur la structure des biofilms fongiques. Quel que soit le mode de croissance de P. chrysosporium, le mécanisme de réduction du sélénite semble être toujours le même tout en menant à la formation de sélénium élémentaire. Cependant, l'architecture des biofilms et l'activité en oxygène sont influencées par la présence de sélénium
Selenium (Se) and tellurium (Te) are particular elements, they are part of the chalcogens (VI-A group of the periodic table) and share common properties. These metalloids are of commercial interest due to their physicochemical properties, and they have been used in a broad range of applications in advanced technologies. The water soluble oxyanions of these elements (i.e., selenite, selenate, tellurite and tellurate) exhibit high toxicities, thus their release in the environment is of great concern. Different physicochemical methods have been developed for the removal of these metalloids, mainly for selenium. However, these methods require specialized equipment, high costs and they are not ecofriendly. The biological treatment is a green alternative to remove Se and Te from polluted effluents. This remediation technology consists on the microbial reduction of Se and Te oxyanions in wastewater to their elemental forms (Se0 and Te0), which are less toxic, and when synthesized in the nano-size range, they can be of commercial value due to their enhanced properties. The use of fungi as potential Se- and Te-reducing organisms was demonstrated in this study. Response of the model white-rot fungus, Phanerochaete chrysosporium, to the presence of selenite and tellurite was evaluated, as well as their potential application in wastewater treatment and production of nanoparticles. The presence of Se and Te had a clear influence on the growth and morphology of the fungus. P. chrysosporium was found to be more sensitive to selenite. Synthesis of Se0 and Te0 nanoparticles entrapped in the fungal biomass was observed, as well as the formation of unique Se-Te nanocomposites when the fungus was cultivated concurrently in the presence of Se and Te. Potential use of fungal pellets for the removal of Se and Te from semi-acidic effluents (pH 4.5) was suggested. Moreover, the continuous removal of selenite in a fungal pelleted reactor was evaluated. The reactor showed to efficiently remove selenium at steady-state conditions (~70%), and it demonstrated to be flexible and adaptable to different operational conditions. The reactor operated efficiently over a period of 35 days. Good settleability of the fungal pellets facilitated the separation of the selenium from the treated effluent. The use of elemental selenium immobilized fungal pellets as novel biosorbent material was also explored. This hybrid sorbent was promising for the removal of zinc from semi-acidic effluents. The presence of selenium in the fungal biomass enhanced the sorption efficiency of zinc, compared to Se-free fungal pellets. Most of the research conducted in this study was focused on the use of fungal pellets. However, the response of the fungus to selenite in a different kind of growth was also evaluated. Microsensors and confocal imaging were used to evaluate the effects of selenium on fungal biofilms. Regardless of the kind of fungal growth, P. chrysosporium seems to follow a similar selenite reduction mechanism, leading to the formation of Se0. Architecture of the biofilm and oxygen activity were influenced by the presence of selenium

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Bates, C. M. "Pentamethylcyclopentadienyl (Cp*) compounds of selenium and tellurium". Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636056.

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Successful preparations were: (1) bis(pentamethylcyclopentadienyl)selenium, prepared by the reaction of selenium diethydithiocarbamate with lithiated pentamethylcyclopentadiene; (2) Cp*Se_nLi (n = 2,3,4), prepared by the reaction of elemental selenium with lithiated pentamethylcyclopentadiene in THF and its subsequent reaction with iodomethane to produce (3) methyl(pentamethylcyclopentadienyl)selenium or water to produce the polyselenide mixture (4) Cp*₂Se_n (n = 2,3,4). (4) was also produced by the low temperature reaction of selenium chloride with lithiated pentamethylcyclopentadiene. The compounds were characterised by conventional methods including ⁷⁷Se NMR spectroscopy. The x-ray structural determination was obtained for compound (1) revealing the largest C-Se-C bond angle recorded for a simple diorganoselenide. The reactivities of the compounds (1) (3) and (4) were investigated in reactions with unsaturated transition metal fragments. In the reactions of (1) with sources of the tungsten and chromium carbonyl compounds [W(CO)₅THF], [W(CO)₃(CH₃CN)₃], [Cr(CO)₅THF], [Cr(CO)₄nbd] and [Cr(CO)₃(CH₃CN)₃] the first example of reduction of a selenide to form a diselenide within the transition metal coordination sphere was observed. These produced the complexes [M(CO)₂{Se₂Cp*₂}] (M = W, Cr). The x-ray structure determinations are included. These complexes contain the longest Se-C bonds recorded. A 1,2 metal shift was observed for the tungsten complex using the technique of two dimensional exchange NMR spectroscopy. (3) reacts with [W(CO₅THF] or [Cr(CO)₅THF] to produce the complexes [W(CO)₅{Se(Me)Cp*}] and [Cr(CO)₅{Se(Me)Cp*}]. The first recorded Se-W satellites are reported for the former. The compounds (1), (3) and (4) were reacted with diiron nonacarbonyl to produce the complex [Fe₃Se₂(CO)₅]. Compound (1) was reacted with a half molar equivalent of [PdCl₂(PhCN)₂] to produce the complex [Pd₂Cl₄(SeCp*₂)].

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8

Conibeer, Gavin John. "Zinc diffusion in tellurium doped gallium antimonide". Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262103.

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9

Abid, K. Y. "Synthetic approaches to organoselenium and tellurium semiconductors". Thesis, Aston University, 1987. http://publications.aston.ac.uk/9723/.

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10

Ahmed, Mohammed A. K. "Synthesis and physical investigation of tellurium dithiocarbamates". Thesis, Aston University, 1985. http://publications.aston.ac.uk/11726/.

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Più fonti

Libri sul tema "Tellurium"

1

McFarlane, J. Fission-product tellurium and cesium telluride chemistry revisited. Pinawa, Man: Whiteshell Laboratories, 1996.

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2

Detty, Michael R. Tellurium-containing heterocycles. New York: Wiley, 1994.

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3

Woollins, J. Derek, e Risto Laitinen, a cura di. Selenium and Tellurium Chemistry. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20699-3.

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4

Hema Malinie Kumbalgoda Kankanam Pathirana. Ligand chemistry of tellurium. Birmingham: University of Aston. Department of Molecular Sciences, 1985.

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5

Petragnani, N. Tellurium in organic synthesis. London: Academic Press, 1994.

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6

Jensen, Neldon L. Tellurium: A chapter from Mineral Facts and Problems, 1985 edition. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Mines, 1985.

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7

West, Anthony Alan. Structural studies in tellurium chemistry. Birmingham: Aston University Department of Chemical Engineeringand Applied Chemistry, 1989.

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8

Patai, Saul, e Zvi Rappoport, a cura di. Organic Selenium and Tellurium Compounds (1986). Chichester, UK: John Wiley & Sons, Inc., 1986. http://dx.doi.org/10.1002/9780470771761.

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9

Petragnani, N. Tellurium in Organic Synthesis: Second, Updated and Enlarged Edition. 2^a ed. Burlington: Elsevier, 2007.

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International Symposium on Uses of Selenium and Tellurium (4th 1989 Banff, Alta.). Proceedings of the Fourth International Symposium on Uses of Selenium and Tellurium: May 7-10, 1989, Banff Springs Hotel, Banff, Alberta, Canada. A cura di Carapella S. C e Selenium-Tellurium Development Association.Darien, Conn.). Darien, CT (P.O. Box 3096, Darien 06820): The Association, 1989.

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Più fonti

Capitoli di libri sul tema "Tellurium"

1

Takahashi, Yoshio. "Tellurium". In Encyclopedia of Earth Sciences Series, 1–3. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-39193-9_288-1.

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Takahashi, Yoshio. "Tellurium". In Encyclopedia of Earth Sciences Series, 1423–25. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39312-4_288.

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3

Crowson, Phillip. "Tellurium". In Minerals Handbook 1992–93, 255–59. London: Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-12564-7_40.

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Banasik, Marek. "Tellurium". In Hamilton & Hardy's Industrial Toxicology, 233–38. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch32.

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Crowson, Phillip. "Tellurium". In Minerals Handbook 1994–95, 265–69. London: Palgrave Macmillan UK, 1994. http://dx.doi.org/10.1007/978-1-349-13431-1_42.

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Crowson, Phillip. "Tellurium". In Minerals Handbook 1996–97, 375–80. London: Palgrave Macmillan UK, 1996. http://dx.doi.org/10.1007/978-1-349-13793-0_44.

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Brookins, Douglas G. "Tellurium". In Eh-pH Diagrams for Geochemistry, 20–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73093-1_5.

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Suttle, John F., Charles R. F. Smith, A. D. McElroy, W. E. Bennett e J. Kleinberg. "Tellurium(IV) Chloride (Tellurium Tetrachloride)". In Inorganic Syntheses, 140–42. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132340.ch36.

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Marshall, H., A. J. King e Thomas Harr. "Tellurium(IV) Oxide (Tellurium Dioxide)". In Inorganic Syntheses, 143–45. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132340.ch37.

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Chivers, T. "Formation of the Tellurium-Tellurium Bond". In Inorganic Reactions and Methods, 37. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145197.ch46.

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Atti di convegni sul tema "Tellurium"

1

Missen, Owen, Joël Brugger, Stuart Mills, Barbara Etschmann, Rahul Ram e Jeremiah Shuster. "Tellurium Biogeochemistry in the World’s Richest Tellurium Hotspot". In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1813.

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Nelson, Matthew P., Juliana M. Ribar, Robert Schweitzer, Scott A. Keitzer, Patrick J. Treado, Karl A. Harris e Danny J. Reese. "Automated inspection of tellurium inclusions in cadmium zinc telluride (CdZnTe)". In International Symposium on Optical Science and Technology, a cura di Ralph B. James e Richard C. Schirato. SPIE, 2000. http://dx.doi.org/10.1117/12.407581.

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3

Chu, Muren, Sevag Terterian, David Ting, Ralph B. James, Jay C. Erickson, H. Walter Yao, Terrance T. Lam, Marek Szawlowski e Richard W. Szczebiot. "Tellurium antisites in CdZnTe". In International Symposium on Optical Science and Technology, a cura di Ralph B. James. SPIE, 2001. http://dx.doi.org/10.1117/12.450755.

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4

Ramasamy, Radha Perumal. "Formation of tellurium-gold necklaces". In DAE SOLID STATE PHYSICS SYMPOSIUM 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4980337.

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Maness, Lindsey V. "Predicting indium and tellurium availability". In 2010 35th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2010. http://dx.doi.org/10.1109/pvsc.2010.5616838.

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Megaw, Peter K. M. "Tellurium oxysalts from Tombstone, Arizona". In 22nd Annual New Mexico Mineral Symposium. Socorro, NM: New Mexico Bureau of Geology and Mineral Resources, 2001. http://dx.doi.org/10.58799/nmms-2001.246.

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Verstraeten, D., C. Longeaud, H. J. von Bardeleben, J. C. Launay, O. Viraphong e Ph C. Lemaire. "PROBING VANADIUM DOPED CADMIUM TELLURIDE DENSITY OF STATES : ENERGY LEVEL OF THE TELLURIUM ANTISITE." In Photorefractive Effects, Materials, and Devices. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/pemd.2003.183.

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Roeser, C., A. Kim e E. Mazur. "Ultrafast lattice-bonding dynamics in tellurium". In Ultrafast Electronics and Optoelectronics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/ueo.2003.wa4.

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Cizewski, J. A., R. G. Henry e C. S. Lee. "Non‐yrast spectroscopy of tellurium nuclei". In Capture gamma‐ray spectroscopy. American Institute of Physics, 1991. http://dx.doi.org/10.1063/1.41281.

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Khorkin, V. S., N. V. Polikarpova e V. B. Voloshinov. "Acoustic Properties of Tellurium Single Crystal". In 2020 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF). IEEE, 2020. http://dx.doi.org/10.1109/weconf48837.2020.9131464.

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Rapporti di organizzazioni sul tema "Tellurium"

1

FTHENAKIS, V. LEACHING OF CADMIUM, TELLURIUM AND COPPER FROM CADMIUM TELLURIDE PHOTOVOLTAIC MODULES. Office of Scientific and Technical Information (OSTI), febbraio 2004. http://dx.doi.org/10.2172/15007145.

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2

Hoffman, Nicolas. Cultivation and Use of Acidithiobacillus ferrooxidans in Tellurium Biorecovery. Office of Scientific and Technical Information (OSTI), dicembre 2020. http://dx.doi.org/10.2172/1740004.

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3

Lohman, James. Photoelectrochemical Catalysis of Hydrogen Peroxide with Tellurium Containing Chromophores. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.7180.

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4

Ham, V. Fracture of tellurium powder particles during particle size analysis. Office of Scientific and Technical Information (OSTI), giugno 1990. http://dx.doi.org/10.2172/6838339.

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5

Churchill, Tyler H. Investigation of Tellurium-130 Nuclear Structure Using Inelastic Neutron Scattering. Fort Belvoir, VA: Defense Technical Information Center, maggio 2003. http://dx.doi.org/10.21236/ada416349.

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Mills, Stephanie E., e Andrew Rupke. Critical Minerals of Utah, Second Edition. Utah Geological Survey, marzo 2023. http://dx.doi.org/10.34191/c-135.

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Abstract (sommario):

Utah is a state with diverse geology and natural resources, and this diversity extends to mineral resources that are deemed critical by the U.S. Department of the Interior. Utah’s critical mineral portfolio includes current producers, known resources, areas of past production, and undeveloped occurrences. This report, now in its second edition, summarizes the geographic and geologic distribution of critical minerals within Utah. Utah is notable for being the global leader in beryllium production; being the only domestic producer of magnesium metal; being one of only two states producing lithium (as of publication); and being a byproduct producer of tellurium, platinum, and palladium from the world-class Bingham Canyon mine, which is one of only two domestic tellurium producers. Utah has known resources of aluminum, fluorspar, germanium, gallium, indium, vanadium, and zinc, as well as past production and occurrences of many other critical minerals. In total, Utah currently produces 6 critical minerals, has known resources of 7 more, and hosts an additional 27 as past producers and/or occurrences with limited potential for economic development.

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Pettes, Michael Thompson, e Alejandra Londono Calderon. Grain boundary structure of two-dimensional tellurium revealed by 4D STEM. Office of Scientific and Technical Information (OSTI), maggio 2020. http://dx.doi.org/10.2172/1630845.

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Voloshinov, Vitaly B. Growth and Characterization of Tellurium Single Crystals for Applications in Imaging AOTFs. Fort Belvoir, VA: Defense Technical Information Center, novembre 2004. http://dx.doi.org/10.21236/ada524958.

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9

Hatch, Duane M. synthesis of selenium- and tellurium-containing tryptophan analogs for the elucidation of protein structure and function. Office of Scientific and Technical Information (OSTI), agosto 2015. http://dx.doi.org/10.2172/1209470.

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10

Ehsani, H., I. Bhat, C. Hitchcock, R. J. Gutmann, G. Charache e M. Freeman. Tellurium doping of Ga{sub 0.8}In{sub 0.2}Sb layers grown by metalorganic vapor phase epitaxy. Office of Scientific and Technical Information (OSTI), giugno 1998. http://dx.doi.org/10.2172/307974.

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