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Zeitschriftenartikel zum Thema „Ag₂Te“

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Autor: Grafiati

Veröffentlicht am 8. Juni 2024

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1

Milenov, T. I., T. Tenev, I. Miloushev, G. V. Avdeev, C. W. Luo und W. C. Chou. „Preliminary studies of the Raman spectra of $$\hbox {Ag}_{2}\hbox {Te}\hbox { and }\hbox {Ag}_{5}\hbox {Te}_{3}$$ Ag 2 Te and Ag 5 Te 3“. Optical and Quantum Electronics 46, Nr. 4 (23.10.2013): 573–80. http://dx.doi.org/10.1007/s11082-013-9810-1.

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2

Römermann, F., und R. Blachnik. „The excess enthalpies of liquid Ag–Ga–Te and Ag–In–Te alloys“. Thermochimica Acta 366, Nr. 2 (Januar 2001): 105–20. http://dx.doi.org/10.1016/s0040-6031(00)00726-7.

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3

Park, Kee-Ryung, Seil Kim, Nosang V. Myung, Sung-Oong Kang und Yong-Ho Choa. „Simple electrochemical synthesis of ultra-long silver telluride nanotubes“. RSC Advances 5, Nr. 38 (2015): 29782–85. http://dx.doi.org/10.1039/c4ra15688a.

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Ultra-long Ag₂Te nanotubes could be electrochemically synthesized by post-electrodeposition of Te on electro-spun Ag nanofibers, in which Ag atoms diffuse into layers of Te and results in a morphology change from nanofibers to hollow nanotubes.

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4

Roemermann, F., und R. Blachnik. „ChemInform Abstract: The Excess Enthalpies of Liquid Ag-Ga-Te and Ag-In-Te Alloys.“ ChemInform 32, Nr. 14 (03.04.2001): no. http://dx.doi.org/10.1002/chin.200114009.

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5

Moroz, Mykola, Fiseha Tesfaye, Pavlo Demchenko, Emanuela Mastronardo, Oksana Mysina, Myroslava Prokhorenko, Serhiy Prokhorenko, Daniel Lindberg, Oleksandr Reshetnyak und Leena Hupa. „Experimental Thermodynamic Characterization of the Chalcopyrite-Based Compounds in the Ag–In–Te System for a Potential Thermoelectric Application“. Energies 15, Nr. 21 (02.11.2022): 8180. http://dx.doi.org/10.3390/en15218180.

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The equilibrium concentration space of the Ag–In–Te system in the part AgInTe2–Te–In2Te3 was studied through the modified solid-state electromotive force (EMF) method by dividing In2Te3–In2Te5–Ag3In97Te147 (I), In2Te5–Te–Ag3In97Te147 (II), Ag3In97Te147–Te–AgIn5Te8 (III), AgIn5Te8–Te–AgIn3Te5 (IV), and AgIn3Te5–Te–AgInTe2 (V), into separate phase regions at T ≤ 500 K. The formation of a thermodynamically stable combination of the binary and ternary phases in the (I)–(V) phase regions from a metastable phase mixture of substances was carried out at T ≤ 500 K in the R(Ag+) part of the positive electrode (PE) of the galvanic cells (GCs) of the structure: (−) C |∙| Ag |∙| SE |∙| R(Ag+) |∙| PE |∙| C (+), where C is the graphite (inert electrode), SE is the solid-state electrolyte (Ag3GeS3Br glass), and Ag is the left (negative) electrode. The Ag+ ions in the R(Ag+) region functioned as small nucleation centers for the formation of the stable phases. The spatial position of the (I)–(V) phase regions in the concentration space of the Ag–In–Te system relative to the position of silver was used to express the overall potential-forming reactions with the participation of the substances Ag, Te, In2Te5, Ag3In97Te147, AgIn5Te8, AgIn3Te5, and AgInTe2. The subsequent EMF measurements were carried out by applying the same GCs. The temperature dependences of the EMF of GCs with PE of the (I)–(V) phase regions were here used to determine, for the first time, the values of standard thermodynamic functions of the binary and ternary compounds. The determined values of the Gibbs energies of the formation of compounds are equal: GIn2Te5○=(182.7±1.9) kJ·mol−1, GAgInTe2○=(115.0±3.1) kJ·mol−1, GAgIn3Te5○=(301.5±6.5) kJ·mol−1, GAgIn5Te8○=(487.6±11.3) kJ·mol−1, and GAg3In97Te147○=(8594±189) kJ·mol−1 The correctness of the division of the equilibrium phase space of the Ag–In–Te system in the part AgInTe2–Te–In2Te3 involving the AgInTe2, AgIn3Te5, AgIn5Te8, and Ag3In97Te147 compounds was confirmed by the agreement of the calculated and literature-based thermodynamic data for In2Te5 compound. Compositions of pairs of the ternary compounds for their subsequent practical application were proposed.

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6

Minnikova, Tatiana, Sergey Kolesnikov, Natalia Evstegneeva, Alena Timoshenko und Natalia Tsepina. „Estimation of the Enzymatic Activity of Haplic Chernozem under Contamination with Oxides and Nitrates of Ag, Bi, Te and Tl“. Agronomy 12, Nr. 9 (14.09.2022): 2183. http://dx.doi.org/10.3390/agronomy12092183.

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Sustainable agriculture is only possible if the agroecological services of the soil are preserved. Soil contamination with rare elements such as silver (Ag), bismuth (Bi), tellurium (Te), and thallium (Tl) is less studied, but their toxicity is no less high than in other heavy metals. Activity of soil enzymes is of great importance for the healthy functioning of soils, agroecosystem services, and their fertility. It is necessary to assess the ecological state of black soil using the most sensitive and informative indicators of the state of soils—their enzymatic activity. The objective of this research was to evaluate changes in activity of five priority soil enzymes (catalase, dehydrogenases, invertase, phosphatase, and urease) when contaminated with oxides and nitrates of Ag, Bi, Te, and Tl in a laboratory model experiment. The integral toxicity of nitrates and oxides of Ag, Bi, Te, and Tl was assessed by the integrated index of soil enzymatic activity. A comparison of the toxicity of oxides and nitrates of each element, according to the integrated index of soil enzymatic activity, allowed us to establish that Ag oxide is more toxic than Ag nitrate; Bi oxide is equivalent in its toxicity to Bi nitrate; and Tl and Te oxides are less toxic than Tl and Te nitrates. When contaminated with oxides, the most informative indicators are activity of invertase (Ag), urease (Bi, Tl), and phosphatase (Te). When contaminated with nitrates, the most informative indicators are activity of phosphatase (Ag) and invertase (Bi, Tl, and Te). Activity of phosphatase and catalase are the most sensitive to contamination by oxides and nitrates of Ag, Bi, Tl, and Te, and dehydrogenases, invertase, and urease are the least sensitive.

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7

Kumar, Neeraj, Suprakas Sinha Ray und Jane Catherine Ngila. „Ionic liquid-assisted synthesis of Ag/Ag2Te nanocrystals via a hydrothermal route for enhanced photocatalytic performance“. New Journal of Chemistry 41, Nr. 23 (2017): 14618–26. http://dx.doi.org/10.1039/c7nj03295a.

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Herein, Ag₂Te and Ag/Ag₂Te nanocrystals were synthesised via a hydrothermal method using diphenyl ditelluride as a new tellurium source and 1-butyl-3-methyl imidazolium acetate (BMIA IL) as a structure controlling and conducting coating source.

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8

Karakaya, I., und W. T. Thompson. „The Ag-Te (Silver-Tellurium) System“. Journal of Phase Equilibria 12, Nr. 1 (Februar 1991): 56–63. http://dx.doi.org/10.1007/bf02663676.

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9

Shanmugan, Subramani, Devarajan Mutharasu und Hassan Zainuriah. „Properties of Ag Doped CdTe Thin Film Prepared by Stacked Elemental Layer (SEL) Method“. Advanced Materials Research 488-489 (März 2012): 742–47. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.742.

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Thin films of elements (Cd,Te,Ag) were layered as a stack (Te/Cd/Te/Ag/Cd) for doping process with different Ag and Cd thickness by SEL method. The XRD results were depicted the presence of Cubic phase CdTe with (111) orientation along with Ag2Te, CdAgTe, AgTe phases. The peaks related to Ag atom at higher concentration evinced the presence of non-reacted Ag atoms on the surface with higher Ag concentration. The observed results showed the growth of CdTe crystals in (111) orientation with high Ag concentration. The AFM results of the annealed stack were clearly indicated the influence of Ag concentration in grain growth as well as surface roughness. Photo-resistivity studies of the annealed stacks also revealed the effect of Ag concentration in reducing the resistance with difference light sources. The observed results suggested that the SEL method could be used for effective doping of transition metals to achieve desired properties.

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10

Usuki, Takeshi, Keigo Abe, Osamu Uemura und Yasuo Kameda. „Ionic Conduction in Liquid Ag–Se and Ag–Te Systems“. Journal of the Physical Society of Japan 70, Nr. 7 (15.07.2001): 2061–67. http://dx.doi.org/10.1143/jpsj.70.2061.

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11

Umarov, Akromiddin, Anvar Shukurov, Alisher Djurabayev, Mansur Ruziev, Ilkhom Ruziev und Satbay Nurjanov. „Minerals of bismuth and antimony in original deposits of zarmitan gold zone, located in granitoid intrusion (Uzbekistan)“. E3S Web of Conferences 401 (2023): 01002. http://dx.doi.org/10.1051/e3sconf/202340101002.

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Modern methods of nanomineralogy (electron microscopy, electron probe microanalysis) were used to study the ores of one of the largest industrial facilities of Uzbekistan - the Zarmitan gold zone, which includes the Zarmitan, Urtalik, Guzhumsay deposits, which are located in the Koshrabadgranosyenite massif. The development of / Au-W / Au-Bi-Te / Au-As / Au-Ag-Te / Au-Ag-Se / Au-Sb-Ag / Au-Hg / types of ores. Productive mineral-geochemical types of ores are Au-Bi-Te gold-bismuth-telluride, represented by maldonite, tellurides, and sulfosalts of bismuth: hedleyite, joseite, tsumite, tetradymite, matildite, treasure, and also Au-Sb-Ag gold-silver-sulfoantimonide type represented by aurostibite, sulfoantimonidesPb, Fe, Ag: plagionite, jamsonite, boulangerite, goodmundite, ovichiite and gold-pyrite-arsenopyrite with nanogold, lellingite, gersdorfite. The main industrial resource of gold is provided by Au-Bi-Te, Au-Sb-Ag, and partially Au-As types. The objects of the Zarmitan zone belong to the orogenic gold deposits associated with the intrusion. The established mineral and geochemical features of ores are direct signs of prospecting, typification, and assessment of hidden gold mineralization of orogenic belts.

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12

Friedman, D. J., G. P. Carey, C. K. Shih, I. Lindau, W. E. Spicer und J. A. Wilson. „The Ag/(Hg,Cd)Te and Al/(Hg,Cd)Te interfaces“. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 4, Nr. 4 (Juli 1986): 1977–82. http://dx.doi.org/10.1116/1.574011.

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13

Louadi, Souad, Abeer Yassin, Hélène Bros und Robert Castanet. „Thermodynamic investigation of the AgTe and CuTe eutectic alloys“. Journal of Alloys and Compounds 224, Nr. 2 (Juli 1995): 351–54. http://dx.doi.org/10.1016/0925-8388(95)01560-4.

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14

Lee, Min Ho, Do-Gyun Byeon, Jong-Soo Rhyee und Byungki Ryu. „Defect chemistry and enhancement of thermoelectric performance in Ag-doped Sn1+δ−xAgxTe“. Journal of Materials Chemistry A 5, Nr. 5 (2017): 2235–42. http://dx.doi.org/10.1039/c6ta09941f.

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15

Abdel Azeem, Manal N., Safwat Hassaballa, Osama M. Ahmed, Khaled N. M. Elsayed und Mohamed Shaban. „Photocatalytic Activity of Revolutionary Galaxaura elongata, Turbinaria ornata, and Enteromorpha flexuosa’s Bio-Capped Silver Nanoparticles for Industrial Wastewater Treatment“. Nanomaterials 11, Nr. 12 (29.11.2021): 3241. http://dx.doi.org/10.3390/nano11123241.

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More suitable wastewater treatment schemes need to be developed to get rid of harmful dyes and pigments before they are discharged, primarily from apparel and textile factories, into water bodies. Silver nanoparticles (Ag-NPs) are very effective, reductive nanocatalysts that can degrade many organic dyes. In this study, Ag-NPs are stabilized and capped with bioactive compounds such as Galaxaura elongata, Turbinaria ornata, and Enteromorpha flexuosa from marine macroalgae extracts to produce Ag[GE], Ag[TE], and Ag[EE] NPs. The reduction of Ag ions and the production of Ag[GE], Ag[TE], and Ag[EE] NPs have been substantiated by UV–Vis spectroscopy, SEM, EDX, and XRD tests. The NPs are sphere and crystalline shaped in nature with dimensions ranging from 20 to 25 nm. The biosynthesized Ag[GE], Ag[TE], Ag[EE] NPs were applied to photodegrade hazardous pigments such as methylene blue, Congo red, safranine O, and crystal violet under sunlight irradiation. In addition to the stability analysis, various experimental parameters, including dye concentration, exposure period, photocatalyst dose, and temperature, were optimized to achieve 100% photodegradation of the dyes. Moreover, the thermodynamic and kinetic parameters were calculated and the impact of scavengers on the photocatalytic mechanism was also investigated.

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16

Sheng, Si-Zhe, Jie Xu, Zhen He, Jin-Long Wang und Jian-Wei Liu. „Necklace-like ultrathin silver telluride nanowire films and their reversible structural phase transition“. Chemical Communications 57, Nr. 56 (2021): 6887–90. http://dx.doi.org/10.1039/d1cc01399h.

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Novel necklace-like Ag₂Te nanowires with reversible structural phase transition at low temperature have been synthesized by a one-pot method. The assembled necklace-like Ag₂Te nanowire film can be applied in electronic sensor devices.

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17

Kurniawan, Kurniawan, Jae-chun Lee, Jonghyun Kim, Rina Kim und Sookyung Kim. „Leaching Kinetics of Selenium, Tellurium and Silver from Copper Anode Slime by Sulfuric Acid Leaching in the Presence of Manganese(IV) Oxide and Graphite“. Materials Proceedings 3, Nr. 1 (06.02.2021): 16. http://dx.doi.org/10.3390/iec2m-09233.

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Sulfuric acid leaching of copper anode slime (CAS) in the presence of manganese(IV) oxide (MnO2) and graphite was investigated for Se, Te and Ag recovery. The study reveals that the leaching of Se, Te and Ag was facilitated by the galvanic interaction with MnO2, and graphite played the role of a catalyst. The leaching process could yield 81.9% Se, 90.8% Te, and 80.7% Ag leaching efficiency when the conditions were maintained as 500 rpm, 2.0 M H2SO4, 0.8/0.8/1 MnO2/graphite/CAS, and 90 °C temperature. The kinetic study showed that Se leaching followed the surface chemical reaction at all the tested temperature range (25–90 °C) with the activation energy of 27.7 kJ/mol. Te and Ag leaching at temperature 25–50 °C followed the mixed and surface chemical reaction models, respectively, and changed to fit the diffusion and mixed control models, respectively, in the temperature range 60–90 °C with the corresponding activation energy of 17.8 and 12.2 kJ/mol.

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18

Tolstykh, Nadezhda, Maria Shapovalova und Maksim Podlipsky. „Au-Ag-Se-Te-S Mineralization in the Maletoyvayam High-Sulfidation Epithermal Deposit, Kamchatka Peninsula“. Minerals 13, Nr. 3 (16.03.2023): 420. http://dx.doi.org/10.3390/min13030420.

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The Maletoyvayam high-sulfidation (HS) epithermal Au-Ag deposit is one of the numerous hydrothermal deposits of the Kamchatka volcanogenic belt, consisting of two main associations: Au-rich (Ag-free) and Ag-bearing. The first one derived from acidic solutions, whereas the second assemblage crystallized from moderately dilute solutions, with both occurring at high oxygen fugacity. The Au-rich association contains the most atypical gold chalcogenides of the Au-Se-Te-S system, which are characterized by Se-S and Te-Se substitutions, e.g., a complete series from maletoyvayamite to tolstykhite Au3(Se,S)4Te6; a series of auroselenide Au(Se1.00–0.64S0.36–0.00); a combined series of gachingite Au(Te,Se) and unnamed Au(Se,Te): Au(Te0.80–0.40Se0.20–0.60). Meanwhile, in the second Ag-bearing assemblage, sulfides of the Au-Ag type prevails, e.g., petrovskaite AuAgS, miargyrite (Ag,Au)(Sb,As)S2, uytenbogaardtite Ag3AuS2, fischesserite Ag3AuSe2 with Au-Ag substitution, and tolstykhite. The Se/S ratio, of the second association, decreases while increasing the Ag concentration in the ore-forming system, including Au-Ag substitutions. The Au content in miargyrite (Au,Ag)SbS3 reaches up to 0.48 apfu, suggesting the existence of a new mineral phase of composition AgAuSb2S6. Au oxide complexes, in both associations, are represented by either a mixture of redeposited gold and Fe-Sb oxide or a homogeneous (Au,Sb,Fe)2O3 composition. These oxides are formed by replacement of calaverite. The ore mineralization of this HS deposit is considered unique due to the special conditions of the ore-forming environment, such as acidic solutions, high oxygen fugacity, and log fSe2 above −5.7; all contributed to the formation of AuSe phases.

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19

Мороз, Н. В., М. В. Прохоренко und Б. П. Рудык. „Термодинамические свойства фаз системы Ag–Ge–Te“. Электрохимия 50, Nr. 12 (2014): 1314–18. http://dx.doi.org/10.7868/s0424857014120032.

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20

Guittard, M., J. Rivet, F. Alapini, A. Chilouet und A. M. Loireau-Lozac'h. „Description du système ternaire Ag-Ga-Te“. Journal of the Less Common Metals 170, Nr. 2 (Juni 1991): 373–92. http://dx.doi.org/10.1016/0022-5088(91)90339-6.

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21

Ferhat, Abdenbi, Rolande Ollitrault-Fichet und Jacques Rivet. „Description du système ternaire AgGeTe“. Journal of Alloys and Compounds 177, Nr. 2 (Dezember 1991): 337–55. http://dx.doi.org/10.1016/0925-8388(91)90087-c.

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22

Ollitrault-Fichet, Rolande, Jacques Rivet, Jean Flahaut und Charbel El Kfouri. „Description du Système Ternaire Ag-As-Te“. Journal of Solid State Chemistry 110, Nr. 1 (Mai 1994): 80–91. http://dx.doi.org/10.1006/jssc.1994.1139.

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23

Voronin, Mikhail V., Evgeniy G. Osadchii und Ekaterina A. Brichkina. „Thermochemical properties of silver tellurides including empressite (AgTe) and phase diagrams for Ag–Te and Ag–Te–O“. Physics and Chemistry of Minerals 44, Nr. 9 (19.04.2017): 639–53. http://dx.doi.org/10.1007/s00269-017-0889-y.

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24

Saleh, N. S., I. J. Jabr und K. A. Al-Saleh. „Ion beam induced atomic mixing kinetics of Te/Cu and Te/Ag“. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 71, Nr. 3 (September 1992): 264–70. http://dx.doi.org/10.1016/0168-583x(92)95398-b.

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25

Tong Sy, Tien, Thuy Nguyen Thi Minh, Chinh Nguyen Thi Viet, Toan Nguyen Cong, Trung Nguyen Bao und Nghia Nguyen Van. „Analysis of the anharmonic thermal expansion coefficient of crystalline silver“. Journal of Military Science and Technology 89 (25.08.2023): 103–9. http://dx.doi.org/10.54939/1859-1043.j.mst.89.2023.103-109.

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The anharmonic thermal expansion (TE) coefficient of crystalline silver (Ag) has been calculated and analyzed in the temperature-dependent. Based on the anharmonic effective potential, the calculation model is developed using the correlated Debye model and the many-body perturbation approach. Thermodynamic parameters of the crystal lattice are derived from the influence of thermal vibrations of all atoms. The anharmonicity results from phonon-phonon interactions, with each thermal vibration can be quantized and treated as a phonon. The obtained expression of the anharmonic TE coefficient of Ag can satisfy all their temperature-dependent fundamental properties. The numerical results of Ag agree well with those obtained from the other theoretical models and experimental data at various temperatures in the range from 0 K to 1000 K. The obtained results indicate the effectiveness of the present model in investigating the TE coefficient of Ag.

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26

Zhao, Peng, Cong-Qiao Xu, Chenxing Sun, Jiahao Xia, Lin Sun, Jun Li und Huaping Xu. „Exploring the difference of bonding strength between silver(i) and chalcogenides in block copolymer systems“. Polymer Chemistry 11, Nr. 44 (2020): 7087–93. http://dx.doi.org/10.1039/d0py01201g.

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27

Minnikova, Tatiana, Sergei Kolesnikov, Dmitry Khoroshaev, Natalia Tsepina, Natalia Evstegneeva und Alena Timoshenko. „Assessment of the Health of Soils Contaminated with Ag, Bi, Tl, and Te by the Intensity of Microbiological Activity“. Life 13, Nr. 7 (20.07.2023): 1592. http://dx.doi.org/10.3390/life13071592.

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Soil health is the basis of ecological and food security for humanity. Among the informative indicators of soil health are microbiological indicators based on the intensity of the carbon dioxide release from the soil. The reaction of the microbial community of Haplic Chernozem Loamic, Haplic Arenosols Eutric, and Haplic Cambisols Eutric to contamination with oxides and nitrates of Ag, Bi, Tl, and Te at doses of 0.5, 1, 3, 10, and 30 derived specific permissible concentrations (SPC) was analyzed in the conditions of a vegetation experiment (the exposure period was 10 days). One derived concentration is assumed to be equal to three background concentrations of the element in the soil. The carbon content of microbial biomass in Haplic Chernozem varied between the experimental options from 6 to 218 mg/kg of soil; in Haplic Arenosols, from 3 to 349 mg/kg of soil; and in Haplic Cambisols, from 7 to 294 mg/kg of soil. Microbial biomass was a more sensitive indicator of contamination by the studied pollutants than basal soil respiration. A decrease in specific microbial respiration was found when Haplic Cambisols were contaminated with Ag, Bi, Te, and Tl oxides. Te and Tl nitrates had a significant toxic effect on each type of soil. At the maximum dose of Tl and Te nitrate, a decrease in basal soil respiration of 56–96% relative to the control and an increase in the metabolic coefficient by 4–6 times was found. The toxicity series of heavy metals averaged for all types of soils in terms of microbiological activity was established: Bi > Ag > Te > Tl (oxides) and Te > Tl > Ag > Bi (nitrates). Nitrates of the elements were more toxic than oxides. Soil toxicity due to Ag, Bi, Tl, and Te contamination was dependent on soil particle size distribution, organic matter content, and soil structure. A series of soil sensitivity to changes in microbial biomass and basal soil respiration when contaminated with the studied pollutants: Haplic Arenosols > Haplic Chernozems > Haplic Cambisols. When diagnosing and assessing the health of soils contaminated with Ag, Bi, Tl, and Te, it is advisable to use indicators of soil microbiological activity.

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28

Kondratieva, Larisa A., Galina S. Anisimova und Veronika N. Kardashevskaia. „Types of Tellurium Mineralization of Gold Deposits of the Aldan Shield (Southern Yakutia, Russia)“. Minerals 11, Nr. 7 (29.06.2021): 698. http://dx.doi.org/10.3390/min11070698.

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The published and original data on the tellurium mineralization of gold ore deposits of the Aldan Shield are systematized and generalized. The gold content is related to hydrothermal-metasomatic processes caused by Mesozoic igneous activity of the region. The formation of tellurides occurred at the very late stages of the generation of gold mineralization of all existing types of metasomatic formations. 29 tellurium minerals, including 16 tellurides, 5 sulfotellurides and 8 tellurates have been identified. Tellurium minerals of two systems predominate: Au-Bi-Te and Au-Ag-Te. Gold is not only in an invisible state in sulfides and in the form of native gold of different fineness, but also is part of a variety of compounds: montbrayite, calaverite, sylvanite, krennerite and petzite. In the gold deposits of the Aldan Shield, three mineral types are distinguished: Au-Ag-Te, Au-Bi-Te, and also a mixed one, which combines the mineralization of both systems. The decrease in the fineness of native gold is consistent with the sequence and temperatures of the formation of Te minerals and associated mineral paragenesis from the epithermal–mesothermal Au-Bi-Te to epithermal Au-Ag-Te. The conducted studies allowed us to determine a wide variety of mineral species and significantly expand the area of distribution of Au-Te mineralization that indicates its large-scale regional occurrence in the Aldan Shield.

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Parida, Bhaskar, Saemon Yoon und Dong-Won Kang. „Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics“. Nanomaterials 11, Nr. 6 (04.06.2021): 1489. http://dx.doi.org/10.3390/nano11061489.

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Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

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Kim, Eun-Kyung, Dasom Park, Nabeen K. Shrestha, Jinho Chang, Cheol-Woo Yi und Sung-Hwan Han. „A facile room temperature chemical transformation approach for binder-free thin film formation of Ag2Te and lithiation/delithiation chemistry of the film“. Dalton Transactions 45, Nr. 43 (2016): 17312–18. http://dx.doi.org/10.1039/c6dt03038f.

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Lin, Fei-Hung, und Chia-Jyi Liu. „One-pot room-temperature aqueous synthesis of Ag2Te–Ag nanocomposites“. Green Chemistry 18, Nr. 19 (2016): 5288–94. http://dx.doi.org/10.1039/c6gc01230b.

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Manibalan, Kesavan, Meng-Yuan Ho, You-Cheng Du, Hung-Wei Chen und Hsin-Jay Wu. „Enhanced Room-Temperature Thermoelectric Performance of 2D-SnSe Alloys via Electric-Current-Assisted Sintering“. Materials 16, Nr. 2 (05.01.2023): 509. http://dx.doi.org/10.3390/ma16020509.

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Single-crystalline tin-selenide (SnSe) has emerged as a high-performance and eco-friendly alternative to the lead-chalcogens often used in mid-temperature thermoelectric (TE) generators. At high temperature >800 K, the phase transition from Pnma to Cmcm causes a significant rise in the TE figure-of-merit (zT) curve. Conversely, the SnSe TE requires a booster at low temperatures, which allows broader applicability from a device perspective. Herein, a synergy of Cu alloy and Ag-coating is realized through a sequential multi-step synthesis, designed to combine different metal deposition effects. Single-crystalline (Cu2Se)x(SnSe)1−x alloys grown by the Bridgman method were then coated with a thin Ag layer by radio frequency (RF) sputtering, and the interlayer epitaxial film was observed via electric-current assisted sintering (ECAS). Consequently, the thin Ag-coating improves the electrical conductivity (σ) and reduces the thermal conductivity (κ) for (Cu2Se)0.005(SnSe)0.995+Ag alloy, increasing the zT curve at close to room temperature (373 K). The incorporation of multistep addition by ECAS enables tuning of the overall solubility of the alloy, which opens a new avenue to optimize TE performance in anisotropic 2D materials.

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Hingorani, Sunil R., Andrea J. Bullock, Tara Elisabeth Seery, Lei Zheng, Darren Sigal, Paul S. Ritch, Fadi S. Braiteh et al. „Randomized phase II study of PEGPH20 plus nab-paclitaxel/gemcitabine (PAG) vs AG in patients (Pts) with untreated, metastatic pancreatic ductal adenocarcinoma (mPDA).“ Journal of Clinical Oncology 35, Nr. 15_suppl (20.05.2017): 4008. http://dx.doi.org/10.1200/jco.2017.35.15_suppl.4008.

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4008 Background: Hyaluronan (HA) accumulation in the tumor microenvironment produces elevated tumor pressure, vascular compression, and reduced drug delivery. PEGPH20 degrades HA, increasing the access and therapeutic index of anticancer agents. Methods: In Stage 1 of this phase II study, pts with untreated mPDA were randomized 1:1 to PAG (P; 3 µg/kg IV 2x/wk x 3 wks in C1, then 1x/wk x 3 wks in C2+, plus AG) vs AG every 28 days. An imbalance in thromboembolic (TE) events in the PAG arm led to a clinical hold (~40% of pts discontinued PEGPH20), exclusion of pts at high risk for TE events and enoxaparin prophylaxis in both study arms. In Stage 2, randomization was 2:1 to PAG vs AG. Tumor HA was tested using a novel assay (VENTANA HA RxDx). Primary endpoints were PFS (evaluable pts) and TE event rate (Stage 2). Secondary endpoints were PFS by HA level and ORR. Results: 279 pts were randomized; 231 are evaluable for efficacy. Of 246 pts with HA data, 84 (34%) were HA-High. As of December 16, 2016, the primary PFS endpoint was statistically significant for PAG vs AG (HR 0.73, 95% CI 0.53-1.00; p = 0.048) (Table). PFS in HA-High pts was also statistically significant in the PAG vs AG arm (HR 0.51; 95% CI 0.26-1.00; p = 0.048). ORR in HA-High pts was 46% (PAG) vs 34% (AG). Overall survival in HA-High pts (exploratory) was 11.5 months (mo) (PAG) and 8.5 mo (AG) (HR 0.96, 95% CI 0.57-1.61). TE events were similar (PAG 14% vs AG 10%) following enoxaparin initiation. All grade treatment-related AE included peripheral edema (PAG 63% vs AG 26%), muscle spasms (56% vs 3%), neutropenia (34% vs 19%), and myalgia (26% vs 7%). Conclusions: Randomized Phase II study met both primary endpoints (PFS and TE event rate), with the largest improvement in the secondary endpoint of PFS in HA-High pts. These data support HA as a potential predictive biomarker for patient selection of PEGPH20, currently investigated in the ongoing global Phase III HALO 301 study with PFS and OS as co-primary endpoints. Clinical trial information: NCT01839487. [Table: see text]

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Friedman, D. J., G. P. Carey, C. K. Shih, I. Lindau, W. E. Spicer und J. A. Wilson. „Diffusion of Ag and Hg at the Ag/(Hg, Cd)Te interface“. Applied Physics Letters 48, Nr. 1 (06.01.1986): 44–46. http://dx.doi.org/10.1063/1.96756.

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35

Hutabalian, Yohanes, und Sinn-wen Chen. „Interfacial reactions in Ag/Se, Ag/Se-30at%Te and Ag2Te/Se couples and the phase equilibria of the Ag-Se-Te ternary system“. Journal of Alloys and Compounds 889 (Januar 2022): 161580. http://dx.doi.org/10.1016/j.jallcom.2021.161580.

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Hingorani, Sunil R., William Proctor Harris, Tara Elisabeth Seery, Lei Zheng, Darren Sigal, Andrew Eugene Hendifar, Fadi S. Braiteh et al. „Interim results of a randomized phase II study of PEGPH20 added to nab-paclitaxel/gemcitabine in patients with stage IV previously untreated pancreatic cancer.“ Journal of Clinical Oncology 34, Nr. 4_suppl (01.02.2016): 439. http://dx.doi.org/10.1200/jco.2016.34.4_suppl.439.

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439 Background: Poor outcome in pancreatic cancer (PDA) is associated partly with stromal hyaluronan (HA) accumulation, which compromises chemotherapy perfusion. PEGPH20, PEGylated recombinant human hyaluronidase, potentiates chemotherapy by depleting HA in tumors. Methods: In an ongoing, phase II, open-label, randomized study of PEGPH20+nab-paclitaxel (Nab)+Gemcitabine (Gem) (PAG) vs Nab+Gem (AG) in previously untreated stage IV PDA, pts receive PEGPH20 3 µg/kg twice weekly (C1), then weekly (C2+) with standard AG dosing. HA status was tested retrospectively. After a temporary clinical hold (Apr-Jul 2014) for an imbalance in thromboembolic (TE) events (29% PAG vs 15% AG), the protocol was amended to exclude high-TE-risk pts and add enoxaparin (LMWH) prophylaxis. Endpoints are PFS and TE events (primary); PFS and ORR by HA level and OS (secondary). Efficacy and safety data through Dec 2014 are for pts enrolled up to clinical hold (Stage 1); TE data are through Sep 2015 (Stage 2). Results: 135 pts were treated (74 PAG, 61 AG). PFS results are shown below (median follow-up 7 mo). In HA-high pts receiving PAG vs AG, ORR was 52% (1 CR) vs 24% (P=.038); ORR was 37% vs 38% in HA-low pts. OS was 12 mo vs 9 mo (HR=0.62) despite 12/23 PAG pts discontinuing PEGPH20 at clinical hold. Common ADRs (PAG vs AG) included peripheral edema (58% vs 31%), muscle spasms (55% vs 1.6%), and neutropenia (32% vs 18%). TE events were: Stage 1 42% vs 25% (no LMWH); Stage 2 (with LMWH; 40 mg/d or 40 mg/d increased to 1 mg/kg/d) 28% vs 29%; (1 mg/kg/d) 5% vs 6%; overall (40 mg/d or 1 mg/kg/d) 13% each arm (to be updated). Conclusions: Pts with HA-high tumors receiving PAG, vs AG, showed significant improvements in PFS and ORR and a trend toward improved OS. PAG was well tolerated, with TE events reduced with LMWH prophylaxis. A global phase III trial of PAG will initiate Q1 2016. Clinical Trial Information: NCT01839487. Clinical trial information: NCT01839487. [Table: see text]

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Cao, Xinran, Caimin Meng, Jing Li, Jun Wang, Yafei Yuan, Jing Su, Chunmin Liu, Xintong Zhang, Hao Zhang und Jianlu Wang. „Characterization of interfacial barrier charging as a resistive switching mechanism in Ag/Sb2Te3/Ag heterojunctions“. Physical Chemistry Chemical Physics 20, Nr. 27 (2018): 18200–18206. http://dx.doi.org/10.1039/c8cp00901e.

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Lee, Min Ho, Jong-Soo Rhyee, Seil Kim und Yong-Ho Choa. „Thermoelectric properties of Bi 0.5 Sb 1.5 Te 3 /Ag 2 Te bulk composites with size- and shape-controlled Ag 2 Te nano-particles dispersion“. Journal of Alloys and Compounds 657 (Februar 2016): 639–45. http://dx.doi.org/10.1016/j.jallcom.2015.10.160.

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Nilges, Tom. „The Solid SolutionsM19Q6X7withM= Ag, Cu;Q= S, Se, Te andX= S, Se, Te“. Zeitschrift für anorganische und allgemeine Chemie 634, Nr. 12-13 (Oktober 2008): 2185–90. http://dx.doi.org/10.1002/zaac.200800128.

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Hazarika, Pranjit, Biswajit Mishra und Kamal Lochan Pruseth. „Trace-element geochemistry of pyrite and arsenopyrite: ore genetic implications for late Archean orogenic gold deposits in southern India“. Mineralogical Magazine 81, Nr. 3 (Juni 2017): 661–78. http://dx.doi.org/10.1180/minmag.2016.080.128.

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AbstractThe distribution of Au and associated trace elements in pyrite and arsenopyrite from late Archean Hutti and Hira-Buddini orogenic gold deposits, eastern Dharwar Craton, southern India was investigated by laser ablation-inductively coupled plasma-mass spectrometry. X-ray element maps acquired by electron probe microanalyser reveal oscillatory zoning of Co and As indicating the crystallization of pyrite and arsenopyrite in an episodic fluid flow regime in which fluid salinity fluctuated due to fault-valve actions. The absence of any relationship between Au and As in pyrite obviate the role of As in the incorporation of Au into pyrite, particularly here and may be generally the case in orogenic gold deposits. On the other hand, positive correlations of Au with Cu, Ag and Te suggest possible influence of these chalcophile elements in the enhanced gold concentrationin sulfides. Pb-Bi-Te-Au-Ag bearing micro-particles (<2 μm) are observed exclusively in micro-fractures and pores in arsenopyrite. The absence of replacement features and element gradient suggests direct precipitation of Pb, Bi, Te, Au and Ag from a fluid that was unreactive towards arsenopyrite. An intermittent fall in fluid pressure caused by the fault-valve action would have resulted in the sporadic precipitation of Au, Pb, Ag, Bi and Te.

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Kim, Cham, David Humberto Lopez, Dong Hwan Kim und Hoyoung Kim. „Dual defect system of tellurium antisites and silver interstitials in off-stoichiometric Bi2(Te,Se)3+ycausing enhanced thermoelectric performance“. Journal of Materials Chemistry A 7, Nr. 2 (2019): 791–800. http://dx.doi.org/10.1039/c8ta05261a.

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Мороз, Н. В., М. В. Прохоренко und П. Ю. Демченко. „Термодинамические свойства промежуточных фаз системы Ag–Te–AgBr“. Журнал физической химии 87, Nr. 1 (2013): 9–12. http://dx.doi.org/10.7868/s0044453713010159.

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Babanly, M. B., Yu M. Shykhyev, N. B. Babanly und Yu A. Yusibov. „Phase equilibria in the Ag-Bi-Te system“. Russian Journal of Inorganic Chemistry 52, Nr. 3 (März 2007): 434–40. http://dx.doi.org/10.1134/s0036023607030242.

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Schnyders, H. S., J. Hahn, D. Streutker und J. B. Van Zytveld. „The electronic transport properties of liquid Ag - Te“. Journal of Physics: Condensed Matter 9, Nr. 46 (17.11.1997): 10121–28. http://dx.doi.org/10.1088/0953-8984/9/46/010.

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Bahari, Zahra, Jacques Rivet, Bernard Legendre und Jérôme Dugué. „Study of the Ag–In–Te ternary system“. Journal of Alloys and Compounds 282, Nr. 1-2 (Januar 1999): 164–74. http://dx.doi.org/10.1016/s0925-8388(98)00839-1.

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Bahari, Zahra, Jacques Rivet, Bernard Legendre und Jérôme Dugué. „Study of the Ag–In–Te ternary system“. Journal of Alloys and Compounds 289, Nr. 1-2 (Juli 1999): 99–115. http://dx.doi.org/10.1016/s0925-8388(99)00122-x.

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Gierlotka, Wojciech. „Thermodynamic assessment of the Ag–Te binary system“. Journal of Alloys and Compounds 485, Nr. 1-2 (Oktober 2009): 231–35. http://dx.doi.org/10.1016/j.jallcom.2009.06.028.

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FERHAT, A., R. OLLITRAULT-FICHET, V. MASTELARO, S. BÉNAZETH und J. RIVET. „Etude des verres du système Ag-Ge-Te“. Le Journal de Physique IV 02, Nr. C2 (Oktober 1992): C2–201—C2–206. http://dx.doi.org/10.1051/jp4:1992229.

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Wu, Hsin-Jay, und Sinn-Wen Chen. „Phase equilibria of Ag–Sb–Te thermoelectric materials“. Acta Materialia 59, Nr. 16 (September 2011): 6463–72. http://dx.doi.org/10.1016/j.actamat.2011.07.010.

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Shah, J., H. M. Sohail, R. I. G. Uhrberg und W. Wang. „Two-Dimensional Binary Honeycomb Layer Formed by Ag and Te on Ag(111)“. Journal of Physical Chemistry Letters 11, Nr. 5 (10.02.2020): 1609–13. http://dx.doi.org/10.1021/acs.jpclett.0c00123.

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