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Artykuły w czasopismach na temat „Oxydes de molybdate”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 1 lutego 2022

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1

Wu, Tian, and Lieyu Zhang. "Metal molybdate nanorods as non-precious electrocatalysts for the oxygen reduction." Functional Materials Letters 08, no. 03 (2015): 1540005. http://dx.doi.org/10.1142/s1793604715400056.

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Development of non-precious electrocatalysts with applicable electrocatalytic activity towards the oxygen reduction reaction (ORR) is important to fulfill broad-based and large-scale applications of metal/air batteries and fuel cells. Herein, nickel and cobalt molybdates with uniform nanorod morphology are synthesized using a facile one-pot hydrothermal method. The ORR activity of the prepared metal molybdate nanorods in alkaline media are investigated by using cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperomety in rotating disk electrode (RDE) techniques. The present

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2

Malik, Muhammad Irfan, Nicolas Abatzoglou, and Inès Esma Achouri. "Methanol to Formaldehyde: An Overview of Surface Studies and Performance of an Iron Molybdate Catalyst." Catalysts 11, no. 8 (2021): 893. http://dx.doi.org/10.3390/catal11080893.

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Formaldehyde is a primary chemical in the manufacturing of various consumer products. It is synthesized via partial oxidation of methanol using a mixed oxide iron molybdate catalyst (Fe2(MoO4)3–MoO3). This is one of the standard energy-efficient processes. The mixed oxide iron molybdate catalyst is an attractive commercial catalyst for converting methanol to formaldehyde. However, a detailed phase analysis of each oxide phase and a complete understanding of the catalyst formulation and deactivation studies is required. It is crucial to correctly formulate each oxide phase and influence the syn

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3

Khazzal Hummadi, Khalid, Karim H. Hassan, and Phillip C. H. Mitchell. "Selectivity and Activity of Iron Molybdate Catalysts in Oxidation of Methanol." Journal of Engineering Research [TJER] 6, no. 1 (2009): 1. http://dx.doi.org/10.24200/tjer.vol6iss1pp1-7.

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The selectivity and activity of iron molybdate catalysts prepared by different methods are compared with those of a commercial catalyst in the oxidation of methanol to formaldehyde in a continuous tubular bed reactor at 200-350 oC (473-623 oK), 10 atm (1013 kPa), with a methanol-oxygen mixture fixed at 5.5% by volume methanol: air ratio. The iron(III) molybdate catalyst prepared by co-precipitation and filtration had a selectivity towards formaldehyde in methanol oxidation comparable with a commercial catalyst; maximum selectivity (82.3%) was obtained at 573oK when the conversion was 59.7%. Ca

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4

Weber, T. R., M. A. Stranick, and M. S. Vukasovich. "Molybdate Corrosion Inhibition in Deaerated and Low-Oxygen Waters." Corrosion 42, no. 9 (1986): 542–45. http://dx.doi.org/10.5006/1.3583065.

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Abstract The inhibiting effect of sodium molybdate on mild steel corrosion in deaerated and low-oxygen concentration waters at pH 9.0 and 60 C was investigated using weight loss and electrochemical test methods. Molybdate was inhibitive at a water oxygen concentration between 1 and 2.5 mg/L. In combinations with sodium nitrite, molybdate exhibited synergistic inhibition at 1 mg/L oxygen. An explanation of the observed synergism is discussed based on the electrochemical study.

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5

Nunes, Carla, Josep Usall, Neus Teixidó, Maribel Abadias, and Immaculada Viñas. "Improved Control of Postharvest Decay of Pears by the Combination of Candida sake (CPA-1) and Ammonium Molybdate." Phytopathology® 92, no. 3 (2002): 281–87. http://dx.doi.org/10.1094/phyto.2002.92.3.281.

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The potential enhancement of Candida sake (CPA-1) by ammonium molybdate to control blue and gray mold caused by Penicillium expansum and Botrytis cinerea, respectively, on Blanquilla pears was investigated. In laboratory trials, improved control of blue and gray molds was obtained with the application of ammonium molybdate (1, 5, 10, and 15 mM) alone or in combination with C. sake at 2 × 106 or 2 × 107 CFU ml-1 on Blanquilla pears stored at 20°C. In semicommercial trials at 1°C for 5 months, the efficacy of C. sake at 2 × 106 CFU ml-1 on reducing P. expansum and B. cinerea decay was enhanced m

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6

Fu, Kai Lin, Wei Hui Jiang, Jian Min Liu, Guo Feng, and Mu Pan. "Study on Mullite Whiskers Preparation via Non-Hydrolytic Sol-Gel Process Combined with Molten Salt Method." Materials Science Forum 848 (March 2016): 295–300. http://dx.doi.org/10.4028/www.scientific.net/msf.848.295.

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Mullite whiskers were prepared via non-hydrolytic sol-gel process combined with molybdate molten salt using tetraethoxysilane and anhydrous aluminum chloride as precussor, anhydrous ether as oxygen donor, molybdate as molten salt. The effects of heat treatment temperature, molten salt amount, holding time on synthesis and morphology of mullite whiskers were investigated by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The results show that the mullite whiskers appeared at the lowest temperature of 800°C, and optimized mullite whiskers could be prepared at 90

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7

Wan, Chao, Dang-guo Cheng, Fengqiu Chen, and Xiaoli Zhan. "Oxidative dehydrogenation of 1-butene over vanadium modified bismuth molybdate catalyst: an insight into mechanism." RSC Advances 5, no. 53 (2015): 42609–15. http://dx.doi.org/10.1039/c5ra04925c.

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8

Tsybulskyi, Volodymyr, Myron R. Panasyuk, Ivan M. Solskii, Viktor Rudyk, and Volodymyr B. Kapustianyk. "Thermally Activated Processes in CaMoO₄ Crystals." Solid State Phenomena 200 (April 2013): 220–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.200.220.

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The effect of annealing in the oxygen flow atmosphere of calcium molybdate crystals on their absorption spectra and thermally stimulated luminescence (TSL) glow curve was studied. The thermally stimulated depolarization (TSD), polarization (TSP) currents and temperature dependence of X-ray luminescence of CaMoO4were investigated in the temperature range of 100-320 K. One of the trap detected by TSL was found to disappear after high-temperature annealing of calcium molybdate single crystals. The nature of the absorption bands is discussed. The values of activation energy were calculated for the

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9

Larionov, Alexey V., Ludmila Y. Udoeva, and Vladimir M. Chumarev. "Thermodynamic simulation of oxidation process of the Moss-Mo3Si hypoeutectic alloy, doped with yttrium." Butlerov Communications 57, no. 2 (2019): 101–10. http://dx.doi.org/10.37952/roi-jbc-01/19-57-2-101.

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In order to study the effect of yttrium additives on the oxidation of molybdenum silicide alloys, thermodynamic modeling of the interaction in the Mo-Mo3Si-Y5Si3 system with dry and moist air was performed in the temperature range 25-2000 °C. To predict the composition of oxidation products and the sequence of the formation of phase components, the dependences on the temperature and consumption of oxidants – water vapor and oxygen of the air – are obtained. The calculations were performed using the HSC Chemistry 6.12 software, into the database of which the calculated missing thermochemical ch

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10

Lanez, Touhami, and Abdelkerim Rebiai. "Development of an Electrochemical Method for the Measurement of Antioxidant Capacity of Pure Compounds and Natural Substances Extracts." International Letters of Chemistry, Physics and Astronomy 6 (September 2013): 46–54. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.6.46.

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A new method has been developed to measure total antioxidant activity of antioxidants in foods and natural substances without use of standard antioxidants and without use of calibration curves plotting. It is based on measuring the oxidation peak current of superoxide anion radical electrochemically generated by reduction of commercial molecular oxygen in dimethylformamide. The method has been validated using 7 known standard antioxidants and the results have been compared with those obtained by the DPPH and molybdate ion reduction assays. Measured antioxidant capacities were highly correlated

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11

Song, Zhibin, Wei Huang, Yan Zhou, Zi-Qi Tian, Zhang-Min Li, and Duan-Jian Tao. "Thermally regulated molybdate-based ionic liquids toward molecular oxygen activation for one-pot oxidative cascade catalysis." Green Chemistry 22, no. 1 (2020): 103–9. http://dx.doi.org/10.1039/c9gc03646f.

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A family of thermally regulated molybdate-based ionic liquids has been developed for highly efficient synthesis of various flavones, imines, and benzyl benzoates through one-pot oxidative cascade catalysis.

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12

Lim, Butaek, Kitae Kim, Hyunyoung Chang, Heungbae Park, and Youngsik Kim. "The Effect of Tungstate and Ethanolamines Added in Tap Water on Corrosion Inhibition of Ductile Cast Iron Pipe for Nuclear Power Plants." Metals 10, no. 12 (2020): 1597. http://dx.doi.org/10.3390/met10121597.

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Cast iron is primarily used in buried piping to transport water in the fire protection system of nuclear power plants; ductile cast iron is generally used for domestic nuclear power plants. In general, the fluid used as fire-extinguishing water in such fire protection systems is tap water, and corrosion inhibitors are not currently added. In this study, the synergistic effect of an adsorption barrier (monoethanolamine) and oxidized film in an environment with a corrosion inhibitor (tungstate) is examined, and the corresponding passivation properties are presented. An immersion corrosion test a

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13

Mikhaylovskaya, Z. A., E. S. Buyanova, and S. A. Petrova. "Bismuth Molybdate-based Oxygen Ion Conductors: Synthesis and Properties." KnE Materials Science 4, no. 2 (2018): 14. http://dx.doi.org/10.18502/kms.v4i2.3032.

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14

Chen, Jiayi, Guoqiang Zhao, Yaping Chen, et al. "Iron‐Doped Nickel Molybdate with Enhanced Oxygen Evolution Kinetics." Chemistry – A European Journal 25, no. 1 (2018): 280–84. http://dx.doi.org/10.1002/chem.201803844.

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15

Smulders, Vera, Adriano S. O. Gomes, Nina Simic, Bastian Mei, and Guido Mul. "Mixed Chromate and Molybdate Additives for Cathodic Enhancement in the Chlorate Process." Electrocatalysis 12, no. 4 (2021): 447–55. http://dx.doi.org/10.1007/s12678-021-00666-7.

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AbstractThe economic viability of the electrochemical chlorate process depends on toxic chromate to induce cathodic selectivity to hydrogen and mitigate reduction of hypochlorite or chlorate. In this study, it is shown that performance of a pilot plant for chlorate production can be sustained when a 1000-fold reduction in chromate concentration is compensated by addition of molybdate. Laboratory measurements employing a Quartz Crystal Microbalance suggest growth of a nanometre-thick hybrid Mo–Cr-oxide film to induce cathodic selectivity. An optimized energy efficiency for pilot plant operation

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16

Zhou, Wan Qiu, Yan Rong Liu, Jian Wang, Li Sheng, Shi Wei Wu, and Yan Hong Kang. "Corrosion Protection of Molybdenum-Phosphorus Compounds Based Coating Formed on Hot Dip Galvanized Steel in a Cl^- Ione Environment." Advanced Materials Research 750-752 (August 2013): 2017–20. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.2017.

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Molybdate-phosphate conversion coating was prepared by adding addition agent towards molybdenum-phosphorus compounds based bath on comercial hot dip galvanized steel. The anti-corrosion performance of the coating was evaluated by electrochemical technique in 3.5%NaCl. It is found that the anodic branch of polarization curves presented in passivation character. Electrochemical impedance spectroscopy (EIS) results indicate that the radius of the capacity impedance for molybdate-phosphate film increased distinctly with pH decrease, which validate the excellent anti-corrosion performance of the fi

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17

Liu, Lei, Wei Hong Wu, Huan Huan Xue, and Hong Qiang Qu. "A Series of Metal Molybdates as Flame-Retardants and Smoke Suppressants for Flexible PVC." Advanced Materials Research 634-638 (January 2013): 1881–85. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.1881.

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A series of metal molybdates were synthesized as flame-retardants and smoke suppressants for flexible poly (vinyl chloride). The powder of molybdates was characterized by the x-ray diffraction. The flame retardancy, smoke suppression and thermal behavior of PVC treated with a series of molybdates were studied by means of limiting oxygen index (LOI), smoke density rating (SDR), thermogravimetry (TG), differential thermogravimetry (DTG), differential thermal analysis (DTA) and scanning electron microscopy (SEM). The results shown that, the flame retardancy and smoke suppression performance of PV

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18

Nagai, T., A. Uehara, M. Fukushima, et al. "Absorption spectra and cyclic voltammograms of uranium species in molten lithium molybdate–sodium molybdate eutectic at 550 ºC." Proceedings in Radiochemistry 1, no. 1 (2011): 151–55. http://dx.doi.org/10.1524/rcpr.2011.0028.

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AbstractAbsorption spectra of uranium species dissolved in molten lithium molybdate–sodium molybdate eutectic of 0.51Li2MoO4–0.49Na2MoO4 mixture at 550 ºC were measured by UV/Vis/NIR spectrophotometry, and their redox reactions were investigated by cyclic voltammetry. We found that the major ions of uranium species dissolved in the melt were uranyl penta-valent. After purging dry oxygen gas into the melt, penta-valent species were oxidized to the uranyl hexa-valent. In the cyclic voltammetry of the melt without uranium species, it was confirmed that the lithium-sodium molybdenum oxide compound

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19

Wang, Fang, Guangjian Wang, and Xinshan Niu. "Study on the Effect of Nickel Doping on Mo-Bi Based Catalyst for Selective Oxidation of Isobutene to Methacrolein." International Journal of Chemical Reactor Engineering 14, no. 1 (2016): 105–12. http://dx.doi.org/10.1515/ijcre-2015-0036.

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AbstractSmall amount of different nickel precursors (nickel nitrate or nickel molybdate) were incorporated into MoBi-based catalyst to produce a series of modified composite oxides catalysts for the selective oxidation of isobutene (IB) to methacrolein (MAL). Nickel nitrate introduction can effectively improve IB conversion and nickel molybdate introduction can remarkably enhance the selectivity of MAL. The XRD results show that nickel introduction has some influence on the catalyst structure. The catalyst modified with NiMoO4 showed the highest MAL yield of 87.8%. According to the H2-TPR, BET

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20

Wang, Ying, Yu Liu, Xiaojian Lu, et al. "Silver-molybdate electrocatalysts for oxygen reduction reaction in alkaline media." Electrochemistry Communications 20 (July 2012): 171–74. http://dx.doi.org/10.1016/j.elecom.2012.05.004.

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21

Lokhat, David, Mike Oliver, and Milan Carsky. "Preparation of iron oxide nanocatalysts and application in the liquid phase oxidation of benzene." Polish Journal of Chemical Technology 17, no. 2 (2015): 43–46. http://dx.doi.org/10.1515/pjct-2015-0027.

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Abstract A series of iron oxide nanocatalysts were prepared using an ultrasonically assisted co-precipitation technique. Molybdenum promoted Fe3O4 and Fe2O3 were prepared from the original materials by wet impregnation using a solution of ammonium molybdate. The catalysts were tested in the liquid phase oxidation of benzene at atmospheric pressure and at 60°C using molecular oxygen. Phenol yields between 7% and 14.5% were obtained. The major products were pyrogallol and catechol.

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22

Khallow, Khalaf I., and Amaal Y. R. Al-Assaf. "Synthesis and Characterization of Oxozirconium(IV), Dioxomolybdenum(VI) and Dioxotungsten(VI) with Ciprofloxacin and Norfloxacin Complexes." E-Journal of Chemistry 8, no. 2 (2011): 576–80. http://dx.doi.org/10.1155/2011/142646.

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The interaction of quinolone drugs, ciprofloxacin (CIPH) and norfloxacin (NORH), with zirconyl chloride octahydrate, sodium molybdate dihydrate and sodium tungstate dihydrate was investigated. Elemental analysis, FTIR spectral, electrical conductivity, magnetic susceptibility and UV Visible spectroscopy measurements have been used to characterize the isolated complexes. The results support the formation of two types of complexes of formula [ZrO(H2O)L2]3H2O and [MO2L2] where L = CIP and NOR; M = Mo and W. FTIR spectra of both types of complexes suggest that CIP and NOR act as deprotonated biden

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23

AGHAIE, M., M. H. GHORBANI, R. FAZAELI, and H. AGHAIE. "A DFT STUDY OF MOLYBDATE-PHOSPHONIC ACID COMPLEX." Journal of Theoretical and Computational Chemistry 08, no. 04 (2009): 765–72. http://dx.doi.org/10.1142/s0219633609005040.

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The relative stability of Molybdate-Phosphonic Acid (MPA) Complex in gas phase has been carried out using Density Functional Theory (DFT) methods. The methods used for calculations are B3LYP, BP86 and B3PW91, with three series of basis sets: D95**, 6-31+G (d,p) and 6-31++G (d,p) for hydrogen and oxygen atoms; LANL2DZ for Mo and Phosphorus. Predicted geometry and relative stability are discussed. Equilibrium geometry in the ground electronic state energy has been calculated for 1:1 complex. The best result for energetic and geometrical ground state was obtained with Becke3LYP calculations. The

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24

Matsuura, Ikuya, and Masaru Kirishiki. "Isotopic Exchange of Oxygen-18 of Carbon Dioxide with Lattice Oxygen of Bismuth Molybdate." Chemistry Letters 15, no. 9 (1986): 1441–44. http://dx.doi.org/10.1246/cl.1986.1441.

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25

Avcioğlu, S., T. Mutuk, M. Gürbüz, and S. Çevik. "Single Step Solid-State Synthesis of Lanthanum Molybdate." Advances in Materials Science 19, no. 3 (2019): 46–54. http://dx.doi.org/10.2478/adms-2019-0016.

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AbstractIn this study, LaxMoyOz powders were synthesized by a cost-effective solid-state synthesis method. Four different heating cycles were designed to investigate the effects of synthesis temperature and holding time on lanthanum molybdate (LMO) formation, phase assemblies, particle size and morphology. X-Ray Diffraction (XRD) and scanning electron microscopy (SEM) studies were performed to observe crystal structure and particle morphology of synthesized powders. The results showed that nearly ninety percent β - La2Mo2O9 (43,3 nm crystal size) phase was obtained at 1000 °C for 6 h holding t

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26

Matsuura, Ikuya, Hideto Hashiba, and Isao Kanesaka. "REACTIVE LATTICE OXYGEN IN MULTICOMPONENT BISMUTH MOLYBDATE CATALYST FOR OLEFIN OXIDATION." Chemistry Letters 15, no. 4 (1986): 533–36. http://dx.doi.org/10.1246/cl.1986.533.

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27

Yoshimura, Y., T. Sato, H. Shimada, N. Matsubayashi, and A. Nishijima. "Influences of oxygen-containing substances on deactivation of sulfided molybdate catalysts." Applied Catalysis 73, no. 1 (1991): 55–63. http://dx.doi.org/10.1016/0166-9834(91)85112-9.

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28

Zhou, Wan Qiu, Li Sheng, Shi Gang Xin, Jian Wang, Yan Hong Kang, and Shi Wei Wu. "Effect of Molybdate Bath Service Life on Corrosion Resistance of Conversion Coating Deposited on Hot Dip Galvanized Steel." Advanced Materials Research 750-752 (August 2013): 2012–16. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.2012.

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A conversion coating was obtained in the molybdate based bath on hot dip galvanized steel. The influence of the bath service life and bath component variation on the corrosion resistance of the conversion coating were investigated. Corrosion resistance of the coating was evaluated by electrochemical technique in 3.5%NaCl. It is found that the anodic branch of polarization curves presented in passivation character. Electrochemical impedance spectroscopy (EIS) results confirm that the radius of the capacity impedance for molybdate film decreased with treating area, which reveals that the bath li

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29

Ardanova, Lyudmyla I., Konstantin Chebyshev, Aleksey V. Ignatov, et al. "Fluorite-Like Neodymium Molybdates Doped with Lead." Key Engineering Materials 865 (September 2020): 49–53. http://dx.doi.org/10.4028/www.scientific.net/kem.865.49.

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The purpose of the work is influence investigation of modifying Nd5Mo3O16+δ oxygen-conducting fluorite-related compound by lead at the crystal structure and conductivity. The substitution of lead for neodymium was studied by XRD (with structure refinement), scanning electron microscopy, FTIR-spectroscopy and conductivity measurements. The compositions Nd5-xPbxMo3O16+δ (x = 0 – 1.6) were obtained by a solid state reaction from the oxides. It was determined that single-phase solid solution Nd5-xPbxMo3O16+δ is formed up to x ≈ 0.82. The Rietveld structure refinement shows that lead is statistical

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30

Boehme, K., and H. D. Brauer. "Generation of singlet oxygen from hydrogen peroxide disproportionation catalyzed by molybdate ions." Inorganic Chemistry 31, no. 16 (1992): 3468–71. http://dx.doi.org/10.1021/ic00042a024.

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31

Sears, W. M., and S. M. McIntyre. "Impurity band conductance through oxygen vacancy donor states in bismuth iron molybdate." Journal of Applied Physics 79, no. 10 (1996): 7703–7. http://dx.doi.org/10.1063/1.362435.

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32

Wahlen, Joos, Dirk De Vos, Walther Jary, Paul Alsters, and Pierre Jacobs. "Glycol-modified molybdate catalysts for efficient singlet oxygen generation from hydrogen peroxide." Chemical Communications, no. 23 (2007): 2333. http://dx.doi.org/10.1039/b704238h.

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Rodriguez, Mariandry, Matheus C. P. Stolzemburg, Carlos G. O. Bruziquesi, et al. "Electrocatalytic performance of different cobalt molybdate structures for water oxidation in alkaline media." CrystEngComm 20, no. 37 (2018): 5592–601. http://dx.doi.org/10.1039/c8ce01073k.

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Sadykov, V. A., S. F. Tikhov, V. V. Popovskii, and Yu D. Pankratiev. "Binding energy and reactivity of surface oxygen of cobalt molybdates." Reaction Kinetics and Catalysis Letters 34, no. 2 (1987): 401–6. http://dx.doi.org/10.1007/bf02068038.

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Jung, Ji Chul, Howon Lee, Heesoo Kim, et al. "Effect of Oxygen Capacity and Oxygen Mobility of Pure Bismuth Molybdate and Multicomponent Bismuth Molybdate on their Catalytic Performance in the Oxidative Dehydrogenation of n-Butene to 1,3-Butadiene." Catalysis Letters 124, no. 3-4 (2008): 262–67. http://dx.doi.org/10.1007/s10562-008-9450-4.

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36

Sears, W. M., and W. J. Keeler. "Optical Measurements on Heavily Reduced Bismuth Iron Molybdate: Evidence for Vacancy-Induced Phase Transitions." Applied Spectroscopy 46, no. 12 (1992): 1898–903. http://dx.doi.org/10.1366/0003702924123548.

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It is known that the conductance of a bismuth iron molybdate pellet is greatly affected by the stoichiometry (number of oxygen vacancies) of the compound. The number of these vacancies is determined by the amount of reducing vapor (such as ethanol), which tends to increase their number and the amount of oxygen, which tends to decrease it, in the atmosphere. For this reason the compound can be used as a chemical sensor. Earlier measurements of the conductance in a highly reducing methanol vapor atmosphere, determined by measuring the current passing between two gold wires embedded in a pressed

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An, Li, Yu Zhang, Rui Wang, et al. "Activation of defective nickel molybdate nanowires for enhanced alkaline electrochemical hydrogen evolution." Nanoscale 10, no. 35 (2018): 16539–46. http://dx.doi.org/10.1039/c8nr05723k.

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A series of N doped porous metallic NiMoO<sub>4</sub> nanowires with concomitant oxygen vacancy defects (N-V<sub>o</sub>-NiMoO<sub>4</sub> NWs) were prepared as a catalyst for HER in alkaline media. Volcano-like fashion was exhibited for N-V<sub>o</sub>-NiMoO<sub>4</sub> NWs on various amount of doped-N, with N3-V<sub>o</sub>-NiMoO<sub>4</sub> NWs being the best one.

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Wu, Qitu, and Roger Knowles. "Cellular regulation of nitrate uptake in denitrifying Flexibacter canadensis." Canadian Journal of Microbiology 40, no. 7 (1994): 576–82. http://dx.doi.org/10.1139/m94-092.

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Nitrate uptake and its regulation were investigated using an ion-specific nitrate electrode for denitrifying Flexibacter canadensis under anaerobic conditions. Glucose supported a greater rate of nitrate uptake than did glycerol, glutamate, lactose, cellobiose, or ethanol. Nitrate uptake closely approximated Michaelis–Menten kinetics; the estimated Ks(glucose) and apparent Km(nitrate) for nitrate uptake were 21 and 44 μM, respectively. Nitrate disappearance was correlated with nitrite accumulation, and nitrate had an inhibitory effect on nitrite reduction. Oxygen inhibition of nitrate uptake i

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Amerkhanova, Sh, V. Aleksandrov, R. Shlyapov, and A. Uali. "Physicochemical Particular Qualities of the Crystallization Process of Inorganic Heat-Storage Materials’ Melts." Eurasian Chemico-Technological Journal 21, no. 3 (2019): 269. http://dx.doi.org/10.18321/ectj868.

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Investigations of the cluster-coagulation model for some inorganic substances and mixtures of sodium thiosulfate with salts of elements (VI) of A, B groups have been carried out. The doping of sodium thiosulfate pentahydrate with sodium selenate, tellurate, molybdate and tungstate has been carried out. The thermodynamic parameters of associate formation processes between sodium thiosulfate and salts formed from oxygen-containing acids of selenium, tellurium, molybdenum and tungsten have been calculated. The amount of heat introduced by the modifier (selenate, tellurate, molybdate and tungstate

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Wang, Mengjun, Yan Liu, Xiaobo Zhang, Zichun Fan, and Zhiwei Tong. "Development of sandwich-structured cobalt porphyrin/niobium molybdate nanosheets catalyst for oxygen reduction." Journal of Materials Research 33, no. 24 (2018): 4199–206. http://dx.doi.org/10.1557/jmr.2018.394.

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Luo, Xiaoling, Qi Shao, Yecan Pi, and Xiaoqing Huang. "Trimetallic Molybdate Nanobelts as Active and Stable Electrocatalysts for the Oxygen Evolution Reaction." ACS Catalysis 9, no. 2 (2018): 1013–18. http://dx.doi.org/10.1021/acscatal.8b04521.

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van Laar, F., D. De Vos, D. Vanoppen, B. Sels та P. A. Jacobs. "Heterogeneous molybdate catalysts for the generation of singlet molecular oxygen (1Δg) from H2O2". Chemical Communications, № 2 (1998): 267–68. http://dx.doi.org/10.1039/a706936g.

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Liu, Shude, Ying Yin, Dixing Ni, et al. "Phosphorous-containing oxygen-deficient cobalt molybdate as an advanced electrode material for supercapacitors." Energy Storage Materials 19 (May 2019): 186–96. http://dx.doi.org/10.1016/j.ensm.2018.10.022.

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Bonnard, N., A. Tresierra-Ayala, E. J. Bedmar, and M. J. Delgado. "Molybdate-dependent expression of the periplasmic nitrate reductase in Bradyrhizobium japonicum." Biochemical Society Transactions 33, no. 1 (2005): 127–29. http://dx.doi.org/10.1042/bst0330127.

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The napEDABC genes of Bradyrhizobium japonicum encode the periplasmic nitrate reductase, an Mo-containing enzyme which catalyses the reduction of nitrate to nitrite when oxygen concentrations are limiting. In this bacterium, another set of genes, modABC, code for a high affinity ABC-type Mo transport system. A B. japonicum modA mutant has been obtained that is not capable of growing anaerobically with nitrate and lacks nitrate reductase activity. Under nitrate respiring conditions, when Mo concentrations are limiting, the B. japonicum modA mutant lacked both the 90 kDa protein corresponding to

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Sears, W. M. "The effect of oxygen stoichiometry on the humidity sensing characteristics of bismuth iron molybdate." Sensors and Actuators B: Chemical 67, no. 1-2 (2000): 161–72. http://dx.doi.org/10.1016/s0925-4005(00)00395-6.

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Presuel-Moreno, F. J., M. A. Jakab, and J. R. Scully. "Inhibition of the Oxygen Reduction Reaction on Copper with Cobalt, Cerium, and Molybdate Ions." Journal of The Electrochemical Society 152, no. 9 (2005): B376. http://dx.doi.org/10.1149/1.1997165.

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Bowker, M., E. K. Gibson, I. P. Silverwood, and C. Brookes. "Methanol oxidation on Fe2O3 catalysts and the effects of surface Mo." Faraday Discussions 188 (2016): 387–98. http://dx.doi.org/10.1039/c5fd00225g.

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The adsorption of methanol on haematite has been investigated using temperature programmed methods, combined with in situ DRIFTS. Model catalysts based on this material have then been made with a shell–core configuration of molybdenum oxide monolayers on top of the haematite core. These are used as models of industrial iron molybdate catalysts, used to selectively oxidise methanol to formaldehyde, one of the major chemical outlets for methanol. Haematite itself is completely ineffective in this respect since it oxidises it to CO<sub>2</sub> and the DRIFTS shows that this occurs by oxidation of

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Lopatin, S. I., and S. M. Shugurov. "Thermochemical study of gaseous salts of oxygen-containing acids: XXII. Tin molybdates." Russian Journal of General Chemistry 78, no. 5 (2008): 847–53. http://dx.doi.org/10.1134/s1070363208050010.

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Wessels, Annemarie L., and Wolfgang Jeitschko. "Preparation and Crystal Structure of the Mercury(I) Dimolybdate(VI) Hg2Mo2O7." Zeitschrift für Naturforschung B 51, no. 1 (1996): 37–41. http://dx.doi.org/10.1515/znb-1996-0109.

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Abstract Crystal Structure, Magnetic Susceptibility, Mercury Molybdates(VI) Yellow, flat, needle-shaped, diamagnetic crystals of Hg2Mo2O7 were obtained by decomposition of Hg2MoO4 in evacuated, sealed silica tubes at 550 °C. Their crystal structure was determined from four-circle diffractometer data: P1̄, a = 709.7(2), b -714.4(2), c = 803.8(2) pm, α = 64.89(1)°, β = 66.09(1)°, γ = 66.45(1)°, Z = 2, R = 0.030 for 3165 structure factors and 66 variables. The molybdenum atoms are coordinated by four oxygen atoms at 171 to 195 pm in a very distorted tetrahedral arrangement. These tetrahedra are l

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Aubry, J. M., and B. Cazin. "Chemical sources of singlet oxygen. 2. Quantitative generation of singlet oxygen from hydrogen peroxide disproportionation catalyzed by molybdate ions." Inorganic Chemistry 27, no. 12 (1988): 2013–14. http://dx.doi.org/10.1021/ic00285a001.

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