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Статті в журналах з теми "POTASSIUM BISMUTH"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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1

Derrien, Gaelle, Monique Tillard, Laure Monconduit, and Claude Belin. "Potassium barium bismuth oxide." Acta Crystallographica Section C Crystal Structure Communications 56, no. 6 (June 1, 2000): e232-e232. http://dx.doi.org/10.1107/s0108270100006855.

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2

Inaba, Katsuya, Ichiro Fujii, Kouichi Nakashima, Hiroshi Hayashi, Yuichi Yamamoto, Yoshihiro Kuroiwa, and Satoshi Wada. "Preparation of Grain-Oriented Ceramics with Bismuth Potassium Titanate-Barium Titanate and their Piezoelectric Properties." Key Engineering Materials 582 (September 2013): 80–83. http://dx.doi.org/10.4028/www.scientific.net/kem.582.80.

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Анотація:

Bismuth potassium titanate ((Bi1/2K1/2)TiO3: BKT) powder were prepared using bismuth oxide (Bi2O3), potassium hydrogen carbonate (KHCO3) and titanium oxide (TiO2) raw materials. Barium titanate (BaTiO3: BT) platelike particles oriented along [110] direction were used as template particles. Barium titanate-bismuth potassium titanate (BT-BKT) ceramics had a tetragonal phase at -100 °C. The main composition was fixed to BKT 30 molar% because the Curie temperature (TC) was well above 200 °C at BKT 30 molar%. The orientation of [110]-oriented BT-BKT ceramics (BKT 30 molar%) was 54.6 %.

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3

Wan, Fu Wei, Meng Zhang, Shao Wei Wang, and Jing Hua Yu. "The Synthesis of New Rhodanine Ramification and Application in Determine Trace Bismuth." Advanced Materials Research 306-307 (August 2011): 147–50. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.147.

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A new type rhodanine ramification 3-(4'-methoxyphenyl)-5 (2'- arsenoxylphenylazo)- rhodanine (4MORAAP) was prepared as fluorescent reagent in this paper. A new pectrofluorimetry method was proposed to determine the trace bismuth based on the reaction between potassium periodate and 4MORAAP. The fluorescence intensity was found to be quenched by the oxidation of 4MORAAP by potassium periodate with bismuth as catalyst in the buffer medium of potassium hydrogen phthalate-sodium hydroxide (pH=5.2). Under the optimum conditions, the fluorescent intensity was correlated to be linear with the concentration of bismuth over the range of 2.0×10-7-1.8×10-6 g×L-1 and the detection limit was 2.9×10-8 g×L-1. The relative standard deviation (RSD) was 2.4 % for determined1.0×10-6 g×L-1 bismuth (n=11). The method was proved to be sensitive and selective and was successfully applied to determine trace bismuth in domestic water.

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4

Zhang, Ruding, Jingze Bao, YuHuang Wang, and Chuan-Fu Sun. "Concentrated electrolytes stabilize bismuth–potassium batteries." Chemical Science 9, no. 29 (2018): 6193–98. http://dx.doi.org/10.1039/c8sc01848k.

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5

Wang, Shou Mei, Shen Gгang Ge, Mei Yan, and Jing Hua Yu. "Synthesis and Character of Fluorescence Reagent 3-P-Nitrylphenyl-5-(2'-Sulfonophenylazo) Rhodanine." Advanced Materials Research 306-307 (August 2011): 327–30. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.327.

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Анотація:

A new type rhodanine ramification 3-(4'-methoxyphenyl)-5 (2'- arsenoxylphenylazo)- rhodanine (4MORAAP) was prepared as fluorescent reagent in this paper. A new pectrofluorimetry method was proposed to determine the trace bismuth based on the reaction between potassium periodate and 4MORAAP. The fluorescence intensity was found to be quenched by the oxidation of 4MORAAP by potassium periodate with bismuth as catalyst in the buffer medium of potassium hydrogen phthalate-sodium hydroxide (pH=5.2). Under the optimum conditions, the fluorescent intensity was correlated to be linear with the concentration of bismuth over the range of 2.0×10-7-1.8×10-6g×L-1and the detection limit was 2.9×10-8g×L-1. The relative standard deviation (RSD) was 2.4 % for determined1.0×10-6g×L-1bismuth (n=11). The method was proved to be sensitive and selective and was successfully applied to determine trace bismuth in domestic water

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6

Daminov, Artem S., Ekaterina S. Koledova, Kseniya V. Mishchenko, and Yuri M. Yukhin. "Hydrolytic method for processing bismuth to obtain compounds." MATEC Web of Conferences 340 (2021): 01031. http://dx.doi.org/10.1051/matecconf/202134001031.

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The hydrolytic processing of metallic bismuth to obtain compounds was investigated by methods of chemical, X-ray diffraction analyses, thermogravimetric analyzes, as well as electron microscopy. The conditions for obtaining bismuth nitrate pentahydrate composition Bi(NO3)3∙5H2O, oxide, citrate of bismuth of composition BiС6Н5O7, bismuth-potassium-ammonium citrate and oxohydroxotribromophenolate of bismuth of the pharmacopoeial composition [Bi6O6(OH)2](C6H2Br3O)4 Xeroform are presented.

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7

Wang, Chun-Ming, and Jin-Feng Wang. "Aurivillius Phase Potassium Bismuth Titanate: K0.5Bi4.5Ti4O15." Journal of the American Ceramic Society 91, no. 3 (March 2008): 918–23. http://dx.doi.org/10.1111/j.1551-2916.2007.02211.x.

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8

Petric, A., and A. D. Pelton. "The Bi-K bismuth-potassium system." Journal of Phase Equilibria 12, no. 1 (February 1991): 29–33. http://dx.doi.org/10.1007/bf02663669.

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9

Man, S. Q., S. F. Wong, and E. Y. B. Pun. "Erbium-doped potassium bismuth gallate glasses." Journal of the Optical Society of America B 19, no. 8 (August 1, 2002): 1839. http://dx.doi.org/10.1364/josab.19.001839.

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10

Baumert, B. A. "Barium potassium bismuth oxide: A review." Journal of Superconductivity 8, no. 1 (February 1995): 175–81. http://dx.doi.org/10.1007/bf00732261.

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11

Trnovcová, Viera, Marian Palcut, Ivan Furár, and Dietrich Schultze. "Potassium Self-Diffusion in Potassium Bismuth/Rare Earth Molybdate Crystals." Defect and Diffusion Forum 283-286 (March 2009): 161–65. http://dx.doi.org/10.4028/www.scientific.net/ddf.283-286.161.

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The anisotropy of self-diffusion of K+ ions, ionic conductivity, and static permittivity in stoichiometric disordered K5Bi1-xRx(MoO4)4 (R = Nd, Gd; x = 0, 0.92, 1) single crystals is studied. A high value of the 2-D diffusion and ionic conductivity by K+ ions is detected. The fast ionic transport is parallel to the double layers formed by MoO4 tetrahedrons.

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12

Nikolaychuk, P. A. "Spectrophotometric determination of bismuth potassium ammonium citrate in cleaning wastes of industrial equipment with 4-(2’-pyridylazo)-resorcinol." Industrial laboratory. Diagnostics of materials 88, no. 8 (August 21, 2022): 17–26. http://dx.doi.org/10.26896/1028-6861-2022-88-8-17-26.

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Анотація:

A simple spectrophotometric method for the determination of bismuth potassium ammonium citrate in the cleaning wastes of industrial equipment using 4-(2’-pyridylazo)-resorcinol is proposed. The method is based on displacement of bismuth from its potassium ammonium citrate by 4-(2’-pyridylazo)-resorcinol, formation of the colored complex, and the colorimetric determination of the resulting product. The calibration curve is linear within the range from 4 to 20 mg/L of bismuth potassium ammonium citrate, the molar attenuation coefficient is 10,100 m2/mol, the detection limit is 2.7 mg/L, the quantification limit is 8.2 mg/L. The method is selective with respect to the common excipients, exhibits a good accuracy (the relative uncertainty does not exceed 10%) and precision (the relative standard deviation does not exceed 5%), does not require lengthy sample preparation and sophisticated laboratory equipment and is suitable for the routine analysis of the cleaning wastes of industrial equipment.

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13

Yao, Xuhui, Emilia Olsson, Jun Zhao, Wencong Feng, Wen Luo, Shuangshuang Tan, Meng Huang, et al. "Voltage plateau variation in a bismuth-potassium battery." Journal of Materials Chemistry A 10, no. 6 (2022): 2917–23. http://dx.doi.org/10.1039/d1ta09292h.

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14

LI, Wei, Jia MA, Yan ZHANG, Jie ZHU, Jian-yuan MA, Zhi-wu CHEN, and Lan-lan ZHOU. "Pharmacodynamics study on bismuth potassium citrate tablets." Academic Journal of Second Military Medical University 31, no. 8 (December 27, 2011): 893–97. http://dx.doi.org/10.3724/sp.j.1008.2011.00893.

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15

Manriquez, V., A. Galdámez, D. RUIZ León, M. T. Garland, and M. Jiménez. "Crystal structure of potassium bismuth hexathiodiphosphate, KBiP2S6." Zeitschrift für Kristallographie - New Crystal Structures 218, no. 2 (June 2003): 151–252. http://dx.doi.org/10.1524/ncrs.2003.218.2.151.

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16

Manrique, V., A. Galdámez, D. Ruiz León, M. T. Garland, and M. Jiménez. "Crystal structure of potassium bismuth hexathiodiphosphate, KBiP2S6." Zeitschrift für Kristallographie - New Crystal Structures 218, JG (December 2003): 163–64. http://dx.doi.org/10.1524/ncrs.2003.218.jg.163.

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17

Juang, Yung-Der, and H. T. Kuo. "Hydrothermal Synthesis of Sodium Potassium Bismuth Titanates." Ferroelectrics 478, no. 1 (April 4, 2015): 73–80. http://dx.doi.org/10.1080/00150193.2015.1011458.

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18

ZHU, GANGQIANG, HONGYAN MIAO, GUOQIANG TAN, YUN LIU, and AO XIA. "HYDROTHERMAL SYNTHESIS OF POTASSIUM BISMUTH TITANATE NANOPARTICLES." International Journal of Nanoscience 05, no. 04n05 (August 2006): 663–69. http://dx.doi.org/10.1142/s0219581x06004954.

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Анотація:

Potassium bismuth titanate nanoparticles were prepared by the hydrothermal method using Ti ( C 4 H 9 O )4 and Bi ( NO 3)3·5 H 2 O as raw materials in alkaline solution at temperatures of 160–200°C. The crystal phase, particle size, morphology and dispersion of the particles were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that the particles with sizes of about 50–100 nm in diameter are well-dispersed K 0.5 Bi 0.5 TiO 3 (KBT) crystals of tetragonal structure, and the alkaline concentration and the temperature of solutions have great effects on the phase composition and morphology of the resultant particles. We could gain the KBT phase of high purity when the concentration of KOH is about 8–12 M and the reaction temperature is about 170–180°C.

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19

Borgstedt, H. U., and C. Guminski. "ChemInform Abstract: Solubility Data. Bismuth-Potassium System." ChemInform 30, no. 8 (June 17, 2010): no. http://dx.doi.org/10.1002/chin.199908286.

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20

Lennox, Robert C., Daniel D. Taylor, Laura J. Vera Stimpson, Gavin B. G. Stenning, Marek Jura, Mark C. Price, Efrain E. Rodriguez, and Donna C. Arnold. "PZT-like structural phase transitions in the BiFeO3–KNbO3 solid solution." Dalton Transactions 44, no. 23 (2015): 10608–13. http://dx.doi.org/10.1039/c5dt00140d.

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21

Li, Wei, Yang Xu, Yulian Dong, Yuhan Wu, Chenglin Zhang, Min Zhou, Qun Fu, Minghong Wu, and Yong Lei. "Bismuth oxychloride nanoflake assemblies as a new anode for potassium ion batteries." Chemical Communications 55, no. 46 (2019): 6507–10. http://dx.doi.org/10.1039/c9cc01937e.

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22

You, Yuying, Xin Cao, Xingwu Zhai, Liang Wu, Wei He, Min Zhou, and ZhengMing Sun. "Ultrathin bismuth oxychloride nanosheet for enhanced potassium storage." Materials Letters 318 (July 2022): 132226. http://dx.doi.org/10.1016/j.matlet.2022.132226.

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23

Khelifi, M., M. Loukil, A. Kabadou, R. Zouari, A. Ben Salah, and H. Fuess. "Crystal structure of potassium bismuth dichloride sulfate, KBiCl2SO4." Zeitschrift für Kristallographie - New Crystal Structures 219, no. 1-4 (April 2004): 223–24. http://dx.doi.org/10.1524/ncrs.2004.219.14.223.

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24

Lencka, Malgorzata M., Magdalena Oledzka, and Richard E. Riman. "Hydrothermal Synthesis of Sodium and Potassium Bismuth Titanates." Chemistry of Materials 12, no. 5 (May 2000): 1323–30. http://dx.doi.org/10.1021/cm9906654.

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25

Hussar, Daniel A. "New drugs: Retapamulin, bismuth subcitrate potassium, and rotigotine." Journal of the American Pharmacists Association 47, no. 4 (July 2007): 539–43. http://dx.doi.org/10.1331/japha.2007.07511.

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26

Kodols, Maris, Sabine Didrihsone, Janis Grabis, and Laura Rozenberga-Voska. "The Influence of Different Molten Salt Systems on Zinc and Bismuth Tungstate Formation." Key Engineering Materials 604 (March 2014): 142–45. http://dx.doi.org/10.4028/www.scientific.net/kem.604.142.

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The influence of different molten salt environments on formation of tungstates has been studied. Well crystalline and pure Bi2WO6 have been prepared in potassium nitrite KNO2 (350°C), potassium chloride KCl (800°C) and mixture of potassium-sodium sulphates K2SO4-Na2SO4 (800°C), but ZnWO4 have been successfully synthesized in sodium nitrate NaNO3 (350°C), mixture of sodium-potassium chlorides NaCl-KCl (680°C), potassium chloride KCl (780°C) and mixture of potassium-sodium sulphates K2SO4-Na2SO4 (850°C). The higher surface area and photocatalytic activity show powders prepared at lower temperature.

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27

Mikhailenko, Mikhail A., Marat R. Sharafutdinov, Iliya V. Eltsov, Mikhail V. Trenikhin, and Boris P. Tolochko. "Investigation of Complexation of Bismuth Potassium Citrate with Polysaccharides." Siberian Journal of Physics 15, no. 1 (2020): 100–107. http://dx.doi.org/10.25205/2541-9447-2020-15-1-100-107.

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The interaction of potassium bismuth citrate (PBC) with polysaccharides of various structures – dextran (linear) and arabinogalactan (branched) was investigated. The NMR method revealed the donor-acceptor character of the interaction of dextran with PBC in water solutions. Synchrotron radiation and transmission electron microscopy was show the formation of the anisotropic PBC-nanocrystals the covered of dextran layers.

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28

Fukuchi, Eiichiro, Toshio Kimura, Toshihiko Tani, Tsuguto Takeuch, and Yasuyoshi Saito. "Effect of Potassium Concentration on the Grain Orientation in Bismuth Sodium Potassium Titanate." Journal of the American Ceramic Society 85, no. 6 (June 2002): 1461–66. http://dx.doi.org/10.1111/j.1151-2916.2002.tb00297.x.

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29

Dutchaneephet, Jirapan, Saksit Sukprasong, Narin Sirikulrat, and Athipong Ngamjarurojana. "Optical Analysis of Bismuth-Based Glasses Doped Potassium Chromate." Applied Mechanics and Materials 804 (October 2015): 75–79. http://dx.doi.org/10.4028/www.scientific.net/amm.804.75.

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In this study, Bismuth-based glasses were prepared and doped with various concentration of potassium chromate. They were melted in an electrical furnace at 1250°C for 4 hours then pressed with fire frame to plate shape and annealed at 500°C for 10 min. Optical spectra were used to analyze color shade of glasses. Homogeneity of glasses was analyzed by birefringence technique. Glasses color was changed from colorless to slightly and opaque green with an increasing amount of potassium dichromate and birefringence result showed that the glasses are non-homogenous.

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30

Jiao, Tianpeng, Shuilin Wu, Junye Cheng, Da Chen, Dong Shen, Hui Wang, Zhongqiu Tong, et al. "Bismuth nanorod networks confined in a robust carbon matrix as long-cycling and high-rate potassium-ion battery anodes." Journal of Materials Chemistry A 8, no. 17 (2020): 8440–46. http://dx.doi.org/10.1039/d0ta02414g.

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A novel composite structure comprising bismuth nanorod networks confined into robust micro-sized N, S co-doped carbon matrix was synthesized as a highly stable alloy-type anode for potassium-ion batteries.

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31

Ünlü, Feray, Ashish Kulkarni, Khan Lê, Christoph Bohr, Andrea Bliesener, Seren Dilara Öz, Ajay Kumar Jena, et al. "Single- or double A-site cations in A3Bi2I9 bismuth perovskites: What is the suitable choice?" Journal of Materials Research 36, no. 9 (March 30, 2021): 1794–804. http://dx.doi.org/10.1557/s43578-021-00155-z.

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Abstract Investigations on the effect of single or double A-site cation engineering on the photovoltaic performance of bismuth perovskite-inspired materials (A3Bi2I9) are rare. Herein, we report novel single- and double-cation based bismuth perovskite-inspired materials developed by (1) completely replacing CH3NH3+ (methylammonium, MA+) in MA3Bi2I9 with various organic cations such as CH(NH2)2+ (formamidinium, FA+), (CH3)2NH2+ (dimethylammonium, DMA+), C(NH2)3+ (guanidinium, GA+) and inorganic cations such as cesium (Cs+), rubidium (Rb+), potassium (K+), sodium (Na+) and lithium (Li+) and (2) partially replacing MA+ with Cs+ in different stoichiometric ratios. Compared to single-cation based bismuth perovskite devices, the double-cation bismuth perovskite device showed an increment in the device power conversion efficiency (PCE) up to 1.5% crediting to the reduction in the bandgap. This is the first study demonstrating double-cation based bismuth perovskite showing bandgap reduction and increment in device efficiency and opens up the possibilities towards compositional engineering for improved device performance. Graphic Abstract

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32

Dhahri, Ja, M. Boudard, S. Zemni, H. Roussel, and M. Oumezzine. "Structure and magnetic properties of potassium doped bismuth ferrite." Journal of Solid State Chemistry 181, no. 4 (April 2008): 802–11. http://dx.doi.org/10.1016/j.jssc.2008.01.024.

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33

Huang, Jiaqiang, Xiuyi Lin, Hong Tan, and Biao Zhang. "Bismuth Microparticles as Advanced Anodes for Potassium-Ion Battery." Advanced Energy Materials 8, no. 19 (March 30, 2018): 1703496. http://dx.doi.org/10.1002/aenm.201703496.

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34

Nguyen, Tu N., Daniel M. Giaquinta, William M. Davis, and Hans Conrad zur Loye. "Electrosynthesis of KBiO3 (potassium bismuth oxide): a potassium ion conductor with the KSbO3 (potassium antimony oxide) tunnel structure." Chemistry of Materials 5, no. 9 (September 1993): 1273–76. http://dx.doi.org/10.1021/cm00033a015.

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35

Zhao, Wei, He Ping Zhou, Yong Ke Yan, and Dan Liu. "Morphotropic Phase Boundary Study of the BNT-BKT Lead-Free Piezoelectric Ceramics." Key Engineering Materials 368-372 (February 2008): 1908–10. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1908.

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Анотація:

A lead-free piezoelectric ceramic binary system based on bismuth sodium titanate (Bi0.5Na0.5)TiO3 (BNT)-bismuth potassium titanate (Bi0.5K0.5)TiO3 (BKT) was synthesized by conventional mixed-oxide technique. The XRD analysis showed that the rhombohedral-tetragonal morphotropic phase boundary (MPB) of the Bi0.5 (Na1-xKx)0.5 TiO3 system was in the composition range of x = 0.16 ~ 0.20. In addition, the piezoelectric properties of this system were also investigated. It was indicated that the piezoelectric properties are better with the compositions near the rhombohedral phase within the MPB than the compositions near the tetragonal phase.

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36

Švachula, Jiří, Antonín Tockstein, and Josef Tichý. "Determination of rate equations of catalytic oxidation of propene to acrolein and acrylic acid in the gas phase." Collection of Czechoslovak Chemical Communications 51, no. 8 (1986): 1579–86. http://dx.doi.org/10.1135/cccc19861579.

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The kinetics of propene catalytic oxidation to acrolein and acrylic acid was studied in a flow-circulation reactor over a multicomponent oxide catalyst containing molybdenum, cobalt, nickel, iron, bismuth, and potassium. The rate equations were found for the total formation of acrolein and acrylic acid.

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37

Thongtha, Atthakorn, and Theerachai Bongkarn. "Combustion technique synthesis of lead-free piezoelectric bismuth sodium titanate-bismuth potassium titanate–barium titanate ceramics." Integrated Ferroelectrics 175, no. 1 (August 12, 2016): 102–10. http://dx.doi.org/10.1080/10584587.2016.1202703.

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38

Gave, Matthew A., David P. Weliky, and Mercouri G. Kanatzidis. "New Potassium Bismuth Thiophosphates Including the Modulated K1.5Bi2.5(PS4)3." Inorganic Chemistry 46, no. 26 (December 2007): 11063–74. http://dx.doi.org/10.1021/ic701211a.

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39

Carroll Iii, James, David Payne, Yuji Noguchi, and Masaru Miyayama. "Field-induced strain behavior for potassium sodium bismuth titanate ceramics." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 54, no. 12 (December 2007): 2516–22. http://dx.doi.org/10.1109/tuffc.2007.570.

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40

Shankaraiah, C., V. Gangadhar, M. Vithal, and G. Prasad. "Synthesis and Impedance studies of potassium bismuth tri phosphate electrolyte." Materials Today: Proceedings 11 (2019): 1024–29. http://dx.doi.org/10.1016/j.matpr.2018.12.033.

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41

Norton, Michael L., and Horng Yi Tang. "Superconductivity at 32 K in electrocrystallized barium potassium bismuth oxide." Chemistry of Materials 3, no. 3 (May 1991): 431–34. http://dx.doi.org/10.1021/cm00015a015.

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42

Potong, Ruamporn, Rattiyakorn Rianyoi, Athipong Ngamjarurojana, and Arnon Chaipanich. "Acoustic and dielectric properties of 0–3 bismuth sodium titanate-bismuth potassium titanate-barium titanate/cement composites." Ferroelectrics Letters Section 43, no. 4-6 (December 15, 2015): 77–81. http://dx.doi.org/10.1080/07315171.2016.1210469.

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43

Gackowska, J., M. Gazda, K. Trzebiatowski, and B. Kusz. "Structure and electric conductivity of reduced lead–germanate, bismuth–germanate and bismuth–silicate glasses modified with potassium." Journal of Non-Crystalline Solids 354, no. 35-39 (October 2008): 4319–22. http://dx.doi.org/10.1016/j.jnoncrysol.2008.06.043.

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44

Askarova, Gulzhan, Mels Shautenov, and Kulzhamal Nogaeva. "Flotation enrichment of resistant gold ores." E3S Web of Conferences 168 (2020): 00005. http://dx.doi.org/10.1051/e3sconf/202016800005.

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Анотація:

Ores of the Vasilkovsky deposit include arsenopyrite, pyrite, pyrrhotite, marcasite, gold, chalcopyrite, sphalerite, galena, faded ore (tennantite)S, bismuthine, native bismuth, lellingite, molybdenite, cubanite, bornite, antimonite, relict minerals, magnetite, apatite and apatite chromite, sericite, chlorite, potassium feldspar, tourmaline), quartz, carbonates (siderite, ankerite, calcite), fluorite, barite. Arsenopyrite is the main ore mineral. It contains the bulk of gold, as well as impurities - copper, cobalt, nickel, bismuth, zirconium, titanium, lead, zinc, antimony, silver, molybdenum. Bismuth and its minerals are widespread, they are constantly associated with arsenopyrite, forming intergrowths with native gold, less often with chalcopyrite and faded ore. Native gold is distributed very unevenly, forms the finest precipitates ranging in size from tenths of a micron to 0.063 mm, grows together with quartz, arsenopyrite, pyrite and bismuth minerals. Rich ores were formed by combining bismuthcontaining associations with arsenopyrite. The role of gold in arsenopyrite increases with depth. Ores are of the gold-quartz-sulfide type. Quartz in ore up to 90 %, sulfides from 3 to 5 %. The content of harmful impurities (arsenic) reaches 2 % or more. Ores are refractory, require special technology for the beneficiation and extraction of gold.

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45

Hiruma, Yuji, Kazushige Yoshii, Rintaro Aoyagi, Hajime Nagata, and Tadashi Takenaka. "Piezoelectric Properties and Depolarization Temperatures of (Bi_1/2Na_1/2)TiO₃-(Bi_1/2K_1/2)TiO₃-BaTiO₃ Lead-Free Piezoelectric Ceramics." Key Engineering Materials 320 (September 2006): 23–26. http://dx.doi.org/10.4028/www.scientific.net/kem.320.23.

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The piezoelectric properties of a solid solution based on the three components of bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT), bismuth potassium titanate, (Bi1/2K1/2)TiO3 (BKT), and barium titanate, BaTiO3 (BT), that is, x(Bi1/2Na1/2)TiO3-y(Bi1/2K1/2)TiO3-zBaTiO3 [BNBKy:z(x); x+y+z=1] are investigated. Fine piezoelectric properties in lead-free piezoelectric ceramics were obtained near the MPB composition, and the highest electromechanical coupling factors, k33 and kp, and piezoelectric constant, d33, were 0.58 and 0.36 for BNBK2:1(0.89) and 181 pC/N for BNBK2:1(0.88), respectively. In this study, we also measured the depolarization temperature, Td, from the temperature dependence of dielectric and piezoelectric properties.

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46

Zhou, Shifeng, Gaofeng Feng, Jiaxing Bao, Hucheng Yang, and Jianrong Qiu. "Broadband near-infrared emission from Bi-doped aluminosilicate glasses." Journal of Materials Research 22, no. 6 (June 2007): 1435–38. http://dx.doi.org/10.1557/jmr.2007.0210.

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Анотація:

Bi-doped sodium–potassium aluminosilicate glasses were synthesized and characterized. Broadband near-infrared (IR) emission covered the whole telecommunication wavelength region, with a maximum peak at about 1250 nm, a full width at half-maximum of about 370 nm, and a lifetime longer than 420 μs. The present glasses are potential materials for tunable lasers and optical amplifiers. The decrease of active Bi center concentration with the increase of Na2O content and the addition of CeO2are first reported here, and the IR emission center in sodium–potassium aluminosilicate glasses might be ascribed to low-valence-state bismuth, most probably, Bi+.

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47

Boonruang, Chatdanai, Krit Won-In, and Pisutti Dararutana. "Fracture Surface Analysis, Physical, Optical and Dielectric Properties of Bismuth-Based Glass Doped with Potassium Chromate." Materials Science Forum 1067 (August 10, 2022): 233–37. http://dx.doi.org/10.4028/p-22xy63.

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Bismuth glasses have been prepared from a commercial-grade chemical glass mixture doped with potassium chromate in different contents. They have been melted at 1250 °C for 4 h, quenched in a metal plate, and annealed at 500 °C for 20 min. The surface morphology of glass samples has been examined using scanning electron microscopy (SEM). The dielectric properties have been investigated. UV-Vis-NIR absorption has been analyzed. The results show the growth of microcrystal precipitated in the glass matrix, and colors of glass change from colorless to green and opaque with the increasing content of potassium chromate. The density of glass decreases with the increasing content of potassium chromate. The UV-Vis spectra show strong absorption of UV. The chromium-doped glasses not only absorb the UV but also the violet and/or blue lights which depend on the chromium contents.

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48

Gao, Hui, Kuibo Yin, Zhiyuan Guo, Ying Zhang, Wensheng Ma, Wanfeng Yang, Ke Sun, Zhangquan Peng, and Zhonghua Zhang. "Dealloying-constructed hierarchical nanoporous bismuth-antimony anode for potassium ion batteries." Fundamental Research 1, no. 4 (July 2021): 408–17. http://dx.doi.org/10.1016/j.fmre.2021.06.001.

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49

Favaro, Marco, Fatwa F. Abdi, Marlene Lamers, Ethan J. Crumlin, Zhi Liu, Roel van de Krol, and David E. Starr. "Light-Induced Surface Reactions at the Bismuth Vanadate/Potassium Phosphate Interface." Journal of Physical Chemistry B 122, no. 2 (September 18, 2017): 801–9. http://dx.doi.org/10.1021/acs.jpcb.7b06942.

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50

Guo, Zhen-Lei, Chun-Ming Wang, Tian-Long Zhao, Si-Long Yu, and Zhao-Peng Cao. "Piezoelectric properties and thermal stabilities of cobalt-modified potassium bismuth titanate." Materials Chemistry and Physics 140, no. 1 (June 2013): 260–65. http://dx.doi.org/10.1016/j.matchemphys.2013.03.032.

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