Artículos de revistas sobre el tema "KTiNbO5"

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1

Du, G. H., Y. Yu, Q. Chen, R. H. Wang, W. Zhou y L. M. Peng. "Exfoliating KTiNbO5 particles into nanosheets". Chemical Physics Letters 377, n.º 3-4 (agosto de 2003): 445–48. http://dx.doi.org/10.1016/s0009-2614(03)01202-8.

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2

Lv, Wei, Jie He, Andong Xu, Lifang Hu y Liangguo Da. "Structure and Photocatalytic Activity of Nitrogen-doped HTiNbO5 Nanosheet Aggregation". Nano 12, n.º 01 (enero de 2017): 1750003. http://dx.doi.org/10.1142/s1793292017500035.

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Nitrogen-doped HTiNbO5 nanosheet (N-HTiNbO5-NS) aggregation was successfully obtained through a series of process, including preparation of nitrogen-doped precursor (N-KTiNbO5), proton-exchange of N-KTiNbO5 and exfoliation of N-HTiNbO5. The structures of the as-prepared samples are characterized by means of powder X-ray diffraction (XRD), Scan electron microscopy (SEM), Transmission electron microscopy (TEM), N2 adsorption-desorption isotherms UV-visible diffuse reflectance spectroscopy (UV-Vis-DRS), Laser Raman spectroscopy (LRS), X-ray photoelectron spectroscopy (XPS) and Thermogravimetric analysis-differential scanning calorimetry (TG-DSC). The catalytic activities of the as-prepared samples are evaluated by the photocatalytic degradation of methylene blue (MB) aqueous solution under visible light irradiation. The results reveal that N-HTiNbO5-NS due to the large specific surface area and brilliant visible light response exhibits a relatively excellent photocatalytic activity in the decomposition of MB under visible light irradiation.
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3

Tagaya, H., K. Saito, T. Kuwahara, J. Kadokawa y K. Chiba. "Intercalation of organic compounds into layered titanoniobate KTiNbO5". Catalysis Today 16, n.º 3-4 (3 de mayo de 1993): 463–70. http://dx.doi.org/10.1016/0920-5861(93)80086-g.

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4

Lin, Hsin-Yu y Yung-Shun Chang. "Photocatalytic water splitting for hydrogen production on Au/KTiNbO5". International Journal of Hydrogen Energy 35, n.º 16 (agosto de 2010): 8463–71. http://dx.doi.org/10.1016/j.ijhydene.2010.06.006.

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5

Li, Shanzhong, Wei Wu, Yao Zhai, Xiaobo Zhang, Chao Liu, Lin Liu y Zhiwei Tong. "Photoelectrochemical and characterization of intercalation compound of KTiNbO5 with methylviologen". Solid State Sciences 12, n.º 4 (abril de 2010): 522–26. http://dx.doi.org/10.1016/j.solidstatesciences.2009.12.018.

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6

Im, Mir, Sang-Hyo Kweon, Jin-Seong Kim, Sahn Nahm, Ji-Won Choi y Seong-Ju Hwang. "Microstructural variation and dielectric properties of KTiNbO5 and K3Ti5NbO14 ceramics". Ceramics International 40, n.º 4 (mayo de 2014): 5861–67. http://dx.doi.org/10.1016/j.ceramint.2013.11.028.

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7

Chausson, Sophie, Richard Retoux, Jean-Michel Rueff, Loïc LE Pluart, Pierre-Jean Madec y Paul-Alain Jaffres. "Elaboration and characterization of novel polyamide-12-layered titanoniobates nanocomposites". Journal of Materials Research 24, n.º 11 (noviembre de 2009): 3358–71. http://dx.doi.org/10.1557/jmr.2009.0410.

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This article describes the synthesis and the characterization of a polyamide-12 filled with a nanostructured organic/inorganic titanoniobate hybrid material. The pristine oxide KTiNbO5 has been successfully organomodified by N-alkyl amines via an acido-basic reaction after a cationic exchange step as shown by x-ray diffraction. Transmission electron microscope study and scanning transmission electron microscope observations have been used to describe the change of morphology of the nanofillers before and after processing; the micronic aggregates were changed into single sheets and dispersed in the polymer. Thermomechanical properties of the composites have been determined, and their analyses with structure-properties models are consistent with the exfoliation of the organomodified titanoniobates.
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8

Takahashi, Hiroyuki, Masato Kakihana, Yohichi Yamashita, Kiyohide Yoshida, Shigeru Ikeda, Michikazu Hara y Kazunari Domen. "Synthesis of NiO-loaded KTiNbO5 photocatalysts by a novel polymerizable complex method". Journal of Alloys and Compounds 285, n.º 1-2 (junio de 1999): 77–81. http://dx.doi.org/10.1016/s0925-8388(98)00968-2.

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9

Chausson, Sophie, Vincent Caignaert, Richard Retoux, Jean-Michel Rueff, Loïc Le Pluart, Pierre-Jean Madec y Paul-Alain Jaffrès. "Polyethylene nanocomposites based on intercalation of N-alkyl amines within KTiNbO5 structure". Polymer 49, n.º 2 (enero de 2008): 488–96. http://dx.doi.org/10.1016/j.polymer.2007.11.050.

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10

Zhang, Xiaobo, Chao Liu, Lin Liu, Dongen Zhang, Tianlin Zhang, Xingyou Xu y Zhiwei Tong. "Intercalation of methylene blue into layered potassium titanoniobate KTiNbO5: characterization and electrochemical investigation". Journal of Materials Science 45, n.º 6 (30 de diciembre de 2009): 1604–9. http://dx.doi.org/10.1007/s10853-009-4134-z.

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11

Lambert, J. F., Zengqun Deng, J. B. d'Espinose y J. J. Fripiat. "The intercalation process of N-alkyl amines or ammoniums within the structure of KTiNbO5". Journal of Colloid and Interface Science 132, n.º 2 (octubre de 1989): 337–51. http://dx.doi.org/10.1016/0021-9797(89)90249-x.

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12

Liu, Chao, Huajun Zhu, Yisong Zhu, Pengyu Dong, Haijun Hou, Qixiang Xu, Xiaowei Chen, Xinguo Xi y Wenhua Hou. "Ordered layered N-doped KTiNbO5/g-C3N4 heterojunction with enhanced visible light photocatalytic activity". Applied Catalysis B: Environmental 228 (julio de 2018): 54–63. http://dx.doi.org/10.1016/j.apcatb.2018.01.074.

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13

Takahashi, Hiroyuki, Masato Kakihana, Yohichi Yamashita, Kiyohide Yoshida, Shigeru Ikeda, Michikazu Hara y Kazunari Domen. "ChemInform Abstract: Synthesis of NiO-Loaded KTiNbO5 Photocatalysts by a Novel Polymerizable Complex Method." ChemInform 30, n.º 26 (15 de junio de 2010): no. http://dx.doi.org/10.1002/chin.199926022.

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14

Zhang, Yuanjiao, Ningning Wang, Jie He, Liangguo Da y Zhong Li. "Synthesis of CeO2/e-HTiNbO5 Nanocomposite and Its Application for Photocatalytic Oxidation Desulfurization". Nano 11, n.º 02 (febrero de 2016): 1650018. http://dx.doi.org/10.1142/s1793292016500181.

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Nanoscaled CeO2/e-HTiNbO5 composite was assembled by a facile process using colloidal TiNbO[Formula: see text] (e-HTiNbO5) nanosheet and CeO2 colloid as precursors at room temperature. The nanosheet e-HTiNbO5 was obtained through proton-exchange and exfoliation process from its parent KTiNbO5. The microstructures and properties of the as-prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Laser Raman spectroscopy (LRS), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS), etc. The photocatalytic activity of the obtained nanocomposite is evaluated by the adsorption and photocatalytic oxidation of ethyl mercaptan (EM) under natural light irradiation. The results show that CeO2 nanoparticles are dispersed uniformly on the surface of e-HTiNbO5 and the layered structure of e-HTiNbO5 nanosheet maintains integrity. The interaction between dispersed CeO2 particles and e-HTiNbO5 results in lower bandgap compared to its precursors, and the photocatalytic activity of CeO2/e-HTiNbO5 are enhanced under natural light irradiation.
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15

Xiao, Xiong, Fumitaka Hayashi, Hiromasa Shiiba, Sencer Selcuk, Kazuhiro Ishihara, Kenta Namiki, Lei Shao, Hiromasa Nishikiori, Annabella Selloni y Katsuya Teshima. "Platy KTiNbO5 as a Selective Sr Ion Adsorbent: Crystal Growth, Adsorption Experiments, and DFT Calculations". Journal of Physical Chemistry C 120, n.º 22 (26 de mayo de 2016): 11984–92. http://dx.doi.org/10.1021/acs.jpcc.6b02422.

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16

Ma, Juanjuan, Feng Shao, Lin Liu, Dongen Zhang, Junyan Gong y Zhiwei Tong. "Synthesis and Spectroscopic and Electrochemical Study on the Intercalation Compound of KTiNbO5 with Cationic Metalloporphyrin". Chemistry Letters 41, n.º 5 (5 de mayo de 2012): 491–92. http://dx.doi.org/10.1246/cl.2012.491.

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17

He, Jie, Andong Xu, Lifang Hu, Ningning Wang, Weimeng Cai, Bin Wang, Jingsong Hu y Zhong Li. "Layered KTiNbO5 photocatalyst modified with transitional metal ions (Mn2+, Ni2+): Investigation of microstructure and photocatalytic reaction pathways for the oxidation of dimethyl sulfide and ethyl mercaptan". Powder Technology 270 (enero de 2015): 154–62. http://dx.doi.org/10.1016/j.powtec.2014.10.009.

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18

Wu, Junshu y Dongfeng Xue. "Shape-Preserving Reactive Conversion of Hollow K2Nb2O6 Precursor into KTiNbO5 Architectures". Nanoscience and Nanotechnology Letters 3, n.º 3 (1 de junio de 2011): 434–39. http://dx.doi.org/10.1166/nnl.2011.1180.

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19

Matijašević, Igor, Jasminka N. Korolija y Ljuba M. Mandić. "Translation of P = kT into a pictorial external representation by high school seniors". Chemistry Education Research and Practice 17, n.º 4 (2016): 656–74. http://dx.doi.org/10.1039/c6rp00030d.

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This paper describes the results achieved by high school seniors on an item which involves translation of the equationP=kTinto a corresponding pictorial external representation. The majority of students (the classes of 2011, 2012 and 2013) did not give the correct answer to the multiple choice part of the translation item. They chose pictorial representations of the other gas laws (P=k/V, orV=kT) instead. Failure to choose the correct answer was surprising considering that the symbol for volume was absent which should have been the key clue. Through the analysis of students' explanations (the classes of 2011 and 2012) and interviews (the class of 2013) we considered the reasoning applied by students who chose the correct answer or distractors for the multiple choice part of the item. Among the students who answered correctly there were explanations which contained misconceptions. Several factors that lead to the unsuccessful translation between external representations have been discovered. Students interpreted the change in one quantity based on the notation for the change in another one because of deep rooted cognitive schemas about changing two quantities (volume and pressure, pressure and temperature, temperature and volume), without consideration that for such changes to be valid for gases all three quantities need to be considered for a certain amount of substance. Those cognitive schemas interfered with mathematical reasoning,i.e.students possessed limited understanding of the equations.
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20

Mirowska-Guzel, Dagmara, Tomasz Kocki, Bogusław Okopień, Włodzimierz Buczko, Filip M. Szymański y Krzysztof J. Filipiak. "Stanowisko Komitetu Terapii i Nauk o Leku PAN (KTiNoL PAN), Komitetu Nauk Fizjologicznych i Farmakologicznych PAN (KNFiF), Polskiego Towarzystwa Farmakologicznego (PTF), Polskiego Towarzystwa Farmakologii Klinicznej i Terapii (PTFKiT), Polskiego Towarzystwa Nadciśnienia Tętniczego (PTNT) oraz Sekcji Farmakoterapii Sercowo-Naczyniowej Polskiego Towarzystwa Kardiologicznego (SFSN PTK) dotyczące chlorochiny w leczeniu zakażenia SARS-CoV-2 powodującego COVID-19". Folia Cardiologica 15, n.º 2 (31 de agosto de 2020): 114–17. http://dx.doi.org/10.5603/fc.a2020.0015.

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21

Park, In. "Facile Exfoliation of Layered Titanoniobate (KTiNbO5) into Colloidal Nanosheets". Journal of Nanoscience and Nanotechnology 9, n.º 12 (2009). http://dx.doi.org/10.1166/jnn.2009.1604.

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22

Fang, Mingming, Chy Hyung Kim, Anthony C. Sutorik, David M. Kaschak y Thomas E. Mallouk. "Assembly of thin Film Dielectrics by Sequential Adsorption Reactions of Unilamellar Inorganic Colloids". MRS Proceedings 446 (1996). http://dx.doi.org/10.1557/proc-446-377.

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AbstractSeveral layered inorganic materials (e.g. KCa2Nb3O10, KTiNbO5, and CsPb2Nb3O10) were prepared and their alkali cations exchanged by in aqueous acid. A fraction of the interlayer protons of HCa2Nb3O10 and HTiNbO5 can be replaced by tetra-n-butylammonium (TBA+), by reaction with TBA+OH. Intercalation of a sufficient amount of TBA+ causes complete exfoliation, and single, nanometer-thick sheets of these materials are thus obtained. By sequential adsorption of these two-dimensional colloidal polyanions and polymeric cations, monolayer sheets of layered perovskites can be stacked on silicon surfaces to give thin films of any desired thickness. The layered materials, the exfoliated colloids, and the thin film multilayers on silicon were studied by X-ray diffraction, transmission electronic microscopy (TEM), ellipsometry, and atomic force microscopy (AFM). The dielectric properties of the related bulk materials were measured, and are also discussed.
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23

Hu, Lifang, Andong Xu, Jie He, Wei Lv y Jichao Zhu. "Effects of urea amounts and nitrogenation reaction temperature on optical absorption performances of N-doped KTiNbO5". Applied Physics A 125, n.º 5 (5 de abril de 2019). http://dx.doi.org/10.1007/s00339-019-2605-x.

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24

Yang, Ping, Jun Hu, Youchun Yu y Bin Wang. "A facile approach for the synthesis of porous $$\hbox {KTiNbO}_{5}$$ KTiNbO 5 catalyst with good activity for hydrogenation of p-nitrophenol". Bulletin of Materials Science 41, n.º 2 (abril de 2018). http://dx.doi.org/10.1007/s12034-018-1552-z.

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