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Articoli di riviste sul tema "Pr6111"

Autore: Grafiati
Pubblicato: 29 luglio 2024
Ultima modifica: 19 luglio 2025

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1

Chang, Guoju, Longzhong Ma, Yanhong Tu, Chenxin Mao, Paolo Aprea, and Shiyou Hao. "Facile Construction Engineering of Pr6O11@C with Efficient Photocatalytic Activity." Molecules 29, no. 15 (2024): 3568. http://dx.doi.org/10.3390/molecules29153568.

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Abstract (sommario):
In this study, facile construction engineering of Pr6O11@C with efficient photocatalytic activity was established. Taking advantage of the flocculation of Pr3+ in the base medium, acid red 14 (AR14) was flocculated together with Pr(OH)3 precipitate, in which Pr(OH)3 and AR14 mixed highly uniformly. Calcinated at high temperature in N2, a novel Pr6O11@C was successfully synthesized. The resulting materials were characterized by XRD, SEM, FT-IR, Raman, and XPS techniques. The results show that the cubic Pr6O11@C with Fm3m space group, similar to that of Pr6O11, was obtained. From the results of
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2

Fu, Xiu Li, Hai Feng, and Zhi Jian Peng. "Effect of Pr6O11 Doping on the Microstructural and Electrical Properties of ZnO-Pr6O11-Co3O4-Cr2O3-SnO2 Varistors." Key Engineering Materials 633 (November 2014): 308–12. http://dx.doi.org/10.4028/www.scientific.net/kem.633.308.

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Abstract (sommario):
ZnO-Pr6O11-Co3O4-Cr2O3-SnO2 varistors with different doping levels of Pr6O11 (0.25-2 mol%) were prepared at 1300 °C with conventional ceramic processing, and the effect of Pr6O11 doping on the microstructure and electrical properties of the varistor materials were investigated. The results indicated that the doped Pr6O11 basically existed at the boundary of ZnO grains in the varistor ceramics, and SnO2 might enter into the lattice of ZnO grains or precipitate in reaction with Pr6O11 into Pr2Sn2O7 at the gain boundaries particularly where there were three or more ZnO grains. The analysis of sca
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3

Feng, Hai, Zhi Jian Peng, Cheng Biao Wang, Zhi Qiang Fu, and He Zhuo Miao. "ZnO-Pr6O11-Co3O4-TiO2-Based Ceramic Varistor Materials." Key Engineering Materials 434-435 (March 2010): 389–92. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.389.

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The preparation and characterization of ZnO-Pr6O11-Co3O4-TiO2 (ZPCT) based varistor materials with different doping levels of TiO2 and Pr6O11 were investigated. The results reveal that: (1) TiO2 is an important additive, acting as an inhibitor of ZnO grain growth. The doping of appropriate amount of TiO2 can significantly improve the nonlinear properties and decreases the leakage current of the varistors, achieving a relatively high nonlinear exponent and low leakage current with 1.0 mol% TiO2 doped. (2) The oxide of Pr6O11 microstructurally plays the role of inhibition in grain growth. The do
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4

Wang, Wanhua, Haixia Li, Ka-Young Park, Taehee Lee та Fanglin (Frank) Chen. "Improving the Performance for Direct Electrolysis of CO2 in Solid Oxide Electrolysis Cell with Sr1.9Fe1.5Mo0.5 O6 - δ Electrode Via Infiltration of Pr6O11 Nanoparticles". ECS Meeting Abstracts MA2022-02, № 47 (2022): 1778. http://dx.doi.org/10.1149/ma2022-02471778mtgabs.

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Abstract (sommario):
High temperature direct CO2 electrolysis based on solid oxide electrolysis cell (CO2-SOEC) is a promising technology to convert carbon dioxide to carbon monoxide with a high current density and Faradaic efficiency. The exploration for suitable cathodes with desirable catalytic activity is a grand challenge for the development of CO2-SOEC. Sr2Fe1.5Mo0.5O6 - δ is often used as the cathode material for SOEC, but suffers from insufficient activity for CO2 reduction reaction (CO2RR). In this work, nanoscale Pr6O11 was infiltrated into the Sr1.9Fe1.5Mo0.5O6 - δ (SFM) electrode to promote the CO2RR p
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5

Zhu, Jian Feng, Ji Qiang Gao, Fen Wang, and Ping Chen. "Influence of Pr6O11 on the Characteristics and Microstructure of Zinc Varistors." Key Engineering Materials 368-372 (February 2008): 500–502. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.500.

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The influence of the amount of Pr6O11 additions on the microstructure and electrical properties of varistors ceramics in the ZnO-Bi2O3 system was investigated. Samples with a low level of Pr6O11 (0.1wt %) have high microstructural homogeneity, which enhances the nonlinear coefficient greatly, and decreases the leakage current without change of voltage ratio. When the Pr6O11 content reached 7wt%, the ZnO grain growth was restricted and the threshold voltage was improved from 275v/mm to 440v/mm. The additive of Pr6O11 changed the process of creating spinel phase, which came from the decompositio
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6

Peng, Zhi Jian, Feng Jiang, Hai Feng, and Xiu Li Fu. "Doping Effect of Alkali Ions on the Microstructural and Electrical Properties of ZnO-Pr6O11-Based Varistor Ceramics." Key Engineering Materials 544 (March 2013): 213–18. http://dx.doi.org/10.4028/www.scientific.net/kem.544.213.

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Abstract (sommario):
The microstructural and electrical properties of ZnO-Pr6O11-based ceramics fabricated with 97.5mol% ZnO + 0.5mol% Pr6O11 + 1.0mol% Co3O4 + 0.5mol% Cr2O3 + 0.5mol% MNO3 (M=Li, Na, K, or Rb) were investigated. Scanning electron microscopy analysis revealed that the doping of alkali ions would inhibit the growth of ZnO grains in the as-prepared ZnO-Pr6O11-based ceramics, in which the addition of K+ ion showed the strongest effect. Through the analysis of electric field vs current density characteristics, it was found that the doping of Li+ ion into ZnO-Pr6O11-based ceramics would change the varis
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7

Hong, Ki Won, Ye Rim Kwon, Dong Kun Song, et al. "Fabrication and Characterization of Pt-Pr6O11 Nano Cathode Electrode for Polymer Electrolyte Membrane Fuel Cells via Co-Sputtering Method." Sustainability 17, no. 1 (2024): 198. https://doi.org/10.3390/su17010198.

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Abstract (sommario):
In this study, the performance and durability of polymer electrolyte membrane fuel cells (PEMFCs) were improved using a Pt-Pr6O11 composite electrode fabricated through a co-sputtering technique. Platinum (Pt), widely used as the catalyst material in PEMFCs, often faces stability issues under various electrical load conditions. These issues require greater efforts to enhance PEMFC durability. Various approaches, including replacement of catalyst supports with electrically stable materials (such as metal oxides) or adoption of core-shell and alloy structures to stabilize Pt, have been attempted
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8

Bakhtiyarly, Ikhtiyarly B., Gulnar M. Fatullayeva, and Orudg Sh Kerimli. "GLASS FORMATION IN TERNARY SYSTEM La2O3–As2S3–Pr6O11." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 4-5 (2018): 43. http://dx.doi.org/10.6060/tcct.20186104-05.5637.

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Boundaries of glass formation in ternary system La2O3-As2S3-Pr6O11 were studied using methods of physical-chemical analysis (DTA, DTG, X-ray analysis, MSA). It was established that in glass formation region the range of concentration covers from As2S3-La2O3 15 mol%, but from As2S3-Pr6O11 it is 13 mol%. To our opinion the decrease in glass formation region of Pr6O11 comparing to La2O3 is related to crystalline structure of oxide, i.e. to the change in coordination number of lanthanides. Because properties of compounds of lanthanide are more sensitive to the change in coordination numbers relati
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9

Li, H. "Abstract PR611." Anesthesia & Analgesia 123 (September 2016): 777–78. http://dx.doi.org/10.1213/01.ane.0000492990.38417.15.

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10

Djellal, Nacira, Djamel eddine Mekki, Elena Navarro, and Pilar Marin. "Influence of Pr6O11 addition on structural and magnetic properties of mechanically alloyed Fe65Co35 nanoparticles." Frattura ed Integrità Strutturale 16, no. 60 (2022): 393–406. http://dx.doi.org/10.3221/igf-esis.60.27.

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This work focuses on the synthesize of nanostructured (Fe65Co35)100-x (Pr6O11)x (x = 0, 5) powders using high energy ball milling. The influence of Pr6O11 on structural, morphological and magnetic properties of Fe65Co35 nanoparticles were carried out by X-ray diffraction (XRD), scanning electron microscopy (SEM) with a dispersive energy analyzer (EDS), vibratory sample magnetometer (VSM) and differential scanning calorimetry (DSC). Results show that the praseodymium oxide addition increased the decrement rate of the crystallite size with milling time of about 27 % and decreased the increment r
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11

Hung, Nguyen The, Nguyen Dinh Quang, and Slavko Bernik. "Electrical and microstructural characteristics of ZnO–Bi2O3-based varistors doped with rare-earth oxides." Journal of Materials Research 16, no. 10 (2001): 2817–23. http://dx.doi.org/10.1557/jmr.2001.0388.

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ZnO-based varistor samples with a relatively high Sb2O3 to Bi2O3 ratio of 5 were fired at 1200 °C and found to have a high threshold voltage (VT) of 280 V/mm and a low energy-absorption capacity of 50 J/cm3. The introduction of rare-earth oxides (REO) increased the energy-absorption capacity of Pr6O11- and Nd2O3-doped samples to 110 J/cm3 while their threshold voltage (VT) remained slightly above 300 V/mm. Doping with Pr6O11 and Nd2O3 altered the formation of the spinel phase and significantly changed its particle size and distribution which, as a result, had a positive effect on the energy-ab
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12

Feng, Hai, Zhi Jian Peng, Zhi Qiang Fu, et al. "Optimization of Sintering Temperature and Doping Level of Cr2O3 in ZnO-Pr6O11-Based Varistor Ceramics." Advanced Materials Research 177 (December 2010): 382–85. http://dx.doi.org/10.4028/www.scientific.net/amr.177.382.

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The electrical properties of ZnO-Pr6O11-based varistors, which composed of (98.5-x)mol% ZnO +0.5mol% Pr6O11 +1.0mol% Co3O4 +xmol% Cr2O3 (x=0.0, 0.25, 0.5, 1.0, 2.0), were investigated as a function of sintering temperature in the range of 1250-1400°C for 2 h. At the same sintering temperature, the nonlinear exponents increased with the increase of Cr2O3 doping amount no more than 0.5mol%, but decreased with more Cr2O3 doped. With the same doping level of Cr2O3, the samples' varistor voltage decreased with the sintering temperature increased; and the samples' nonlinear exponents increased first
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13

Shaifudin, Muhamad Syaizwadi, Mohd Sabri Mohd Ghazali, Wan Mohamad Ikhmal Wan Mohamad Kamaruzzaman, et al. "Synergistic Effects of Pr6O11 and Co3O4 on Electrical and Microstructure Features of ZnO-BaTiO3 Varistor Ceramics." Materials 14, no. 4 (2021): 702. http://dx.doi.org/10.3390/ma14040702.

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Abstract (sommario):
This paper investigated the effects of Pr6O11 and Co3O4 on the electrical properties of ZnO-BaTiO3 varistor ceramics. The Pr6O11 doping has a notable influence on the characteristics of the nonlinear coefficient, varistor voltage, and leakage current where the values varied from 2.29 to 2.69, 12.36 to 68.36 V/mm and 599.33 to 548.16 µA/cm2, respectively. The nonlinear varistor coefficient of 5.50 to 7.15 and the varistor voltage of 7.38 to 8.10 V/mm was also influenced by the use of Co3O4 as a dopant. When the amount of Co3O4 was above 0.5 wt.%, the leakage current increased from 202.41 to 302
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14

Trivedi, Mahendra Kumar, Rama Mohan Tallapragada, Alice Branton, et al. "Effect of Biofield Energy Treatment on Physical and Structural Properties of Calcium Carbide and Praseodymium Oxide." International Journal of Materials Science and Applications 4, no. 6 (2015): 390–95. https://doi.org/10.11648/j.ijmsa.20150406.14.

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Calcium carbide (CaC2) is known for its wide applications in the production of acetylene and calcium cyanamide, whereas praseodymium Oxide (Pr6O11) is used in sensors and high-temperature pigments. The present study was designed to evaluate the effect of biofield energy treatment on the physical and structural properties of CaC2 and Pr6O11 powder. The powder samples of both compounds were equally divided into two parts, referred as control and treated. The treated part of both compounds was subjected to Mr. Trivedi’s biofield energy treatment. After that, both control and treated samples
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15

Trivedi, Mahendra Kumar, Rama Mohan Tallapragada, Alice Branton, et al. "Effect of Biofield Energy Treatment on Physical and Structural Properties of Calcium Carbide and Praseodymium Oxide." International Journal of Materials Science and Applications 4, no. 6 (2015): 390–95. https://doi.org/10.5281/zenodo.192891.

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Abstract (sommario):
Calcium carbide (CaC2) is known for its wide applications in the production of acetylene and calcium cyanamide, whereas praseodymium Oxide (Pr6O11) is used in sensors and high-temperature pigments. The present study was designed to evaluate the effect of biofield energy treatment on the physical and structural properties of CaC2 and Pr6O11 powder. The powder samples of both compounds were equally divided into two parts, referred as control and treated. The treated part of both compounds was subjected to Mr. Trivedi’s biofield energy treatment. After that, both control and treated samples
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16

Zhu, Jian Feng, Guo Quan Qi, Hai Bo Mao, Hai Bo Yang, and Fen Wang. "Synthesis of Pr6O11 Doped ZnO-Based Varistors by Pyrogenic Decomposition of Nitrate." Materials Science Forum 675-677 (February 2011): 179–82. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.179.

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Pr6O11 doped ZnO-based varistor powders were prepared by a method of pyrogenic decomposition nitrate, which were together with ZnO powders, made into rounded mass and sintered at different temperatures. The effects of sintering temperatures on the composition, microstructure and electrical properties of Pr6O11 doped ZnO-based varistors were investigated. The results show that the optimum sintering temperature is at 1150 °C with 6 μm ZnO average grain size and the samples possess the advantageous electrical properties: varistor voltage of about 480 V/mm, non linear coefficient reaching 44 and l
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17

Abdullah, Wan Rafizah Wan, Azmi Zakaria, Mansor Hashim, Md Mahmudur Rahman, and Mohd Sabri Mohd Ghazali. "Stability of ZnO-Pr6O11-Cr2O3 Varistor Ceramics against Electrical Degradation." Materials Science Forum 846 (March 2016): 115–25. http://dx.doi.org/10.4028/www.scientific.net/msf.846.115.

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The vulnerability of varistor ceramics to electrical degradation during operation not only affects their nonlinear properties but also leads to shortening of device’s lifetime by increasing the risk of failures including melting, fire or even explosions. In this study, ZnO-Pr6O11-Cr2O3 varistor ceramics were prepared through modified citrate gel method and solid state-sintering at 1250 °C for 1 hour. The stability of their nonlinear properties under prolonged application of DC electrical field in high temperature ambient was investigated. Degradation process was accelerated by applying direct
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18

Bu, Jing Long, Fei Ma, Yun Hong Zhang, Hong Yan Zhao, Rong Lin Wang, and Zhi Fa Wang. "Influence of Rare Earth Oxides on Crystallization Behavior and Sintering Performance of Fused Quartz Ceramic Materials." Advanced Materials Research 150-151 (October 2010): 1782–85. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.1782.

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Fused quartz granule (d50=0.033mm) was used as raw material, Pr6O11, Sm2O3, Gd2O3, Dy2O3 and Ho2O3 were used as additives with dosage of 2% each. Fused quartz ceramic materials were fabricated in reduction atmosphere at 1300°C, 1400°C and 1500°C for 1h. Samples were examined apparent porosity, bending strength, thermal expansion rate (RT~1200°C), and analyzed by XRD and SEM. The results indicated that additives Pr6O11, Sm2O3 and Dy2O3 had a bit inhibiting effect on crystallization of fused quartz sintered at 1300°C and 1400°C, Ho2O3 and Gd2O3 had more inhibiting effect on crystallization in sa
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19

Zhang, Siqi, Keqing Li, Junyuan Pu, and Wen Ni. "Preparation and Basic Properties of Praseodymium-Neodymium-Chromium Containing Imitation Gemstone Glass." Materials 15, no. 20 (2022): 7341. http://dx.doi.org/10.3390/ma15207341.

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Imitation gemstone glass has numerous characteristics, including low cost, rich colour, stable colouring, and the formation of colour-changing effects that can meet the jewellery market demand for beautiful gemstones of middle and low grades. In this study, four types of gem-imitating glass were prepared by the elemental substitution of praseodymium, neodymium and chromium elements based on rare earth glass and examined by combining refractive index, density, spectral characteristics and colour parameters. Sample 1 contained only Pr6O11 and showed a golden-yellow colour like chrysoberyl. Sampl
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20

Bakhtiyarli, I. B., G. M. Fatullayeva, and O. Sh Kerimli. "GLASSFORMATION IN THE SYSTEM As2S3–Pr6O11." Azerbaijan Chemical Journal, no. 1 (2018): 96–99. http://dx.doi.org/10.32737/0005-2531-2018-1-96-99.

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21

Zhang, Cheng Ju, Jin Feng Wang, Wen Bin Su, Guo Zhong Zang, and Hong Cun Chen. "Grain Size Effects of SnO2 Varistor Induced by Doping Pr." Key Engineering Materials 280-283 (February 2007): 275–78. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.275.

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The effects of Pr on the microstructure and nonlinear electrical properties of the (Co,Ta)-doped SnO2 varistors were investigated. It was found by characterizing the samples sintered at 1350 oC that the breakdown voltage increases significantly from 500v/mm to 1200v/mm, and the relative permittivity decreased rapidly from 2525 to 1199 with increasing Pr6O11 concentration from 0 to 1.20 mol%. The analysis of samples’ microscopic structure showed that the grain size of SnO2 rapidly decreases from 5.1 to 3.7 µm with increasing Pr6O11 concentration from 0 to 1.20mol% .The significant decrease of S
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22

Kusrini, Eny, Yan Mulders Togar, Vino Hasyim, and Anwar Usman. "The role of Praseodymium oxide-Impregnated Clinoptilolite Zeolite Catalyst to Increase Octane Number in Gasoline." E3S Web of Conferences 67 (2018): 03051. http://dx.doi.org/10.1051/e3sconf/20186703051.

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In the present work, the role of praseodymium oxide as a promotor of active site in zeolite base as catalyst for increasing the octance number in gasoline were investigated. In this study, we used three types of catalyst, namely the activated clipnotilolite zeolite (catalyst 1), Pr6O11-impregnated clinoptilolite zeolite 0.01 (w/w%) (catalyst 2) and Pr6O11-impregnated clinoptilolite zeolite 0.1 (w/w%) (catalyst 3). Both catalyst 2 and 3 were prepared by impregnation method. The calcination temperature for all of catalysts was set at 500°C for 2 hours to remove the organic impurities and stabili
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23

Yotthuan, Surirat, Nuttawan Sawangboon, Ekarat Meechoowas, Theerachai Bongkarn, and Naratip Vittayakorn. "INFLUENCE OF Pr6O11-DOPING ON THE CRYSTAL STRUCTURE AND ELECTRICAL PROPERTIES OF BNBT PIEZOELECTRIC CERAMICS." Suranaree Journal of Science and Technology 32, no. 1 (2025): 030262(1–8). https://doi.org/10.55766/sujst9183.

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In this work, a series of lead-free 0.97(Bi0.5Na0.5)TiO3-0.03BaTiO3-xPr6O11 (BNBT-xPr) piezoelectric materials with x=0, 0.1, 0.3, 0.5, and 0.7 wt.% were created by the solid-state combustion route, to enhance their electric properties. The investigation on the phase evolution, microstructure, and electrical behavior of the specimens were carried out. The powders and ceramics were calcined and sintered for two hours at 800℃ and 1180℃, correspondingly. All examples displayed a perfect perovskite lattice and no detectable impurity phase. XRD pattern examination for the ceramics disclosed the exi
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24

WEN, CUN, YI LIU, YUN GUO, YANQIN WANG, and GUANZHONG LU. "INFLUENCE OF PRETREATMENT ON THE STRUCTURAL AND CATALYTIC PROPERTIES OF SUPPORTED Pd CATALYSTS FOR CO OXIDATION." Surface Review and Letters 20, no. 02 (2013): 1350013. http://dx.doi.org/10.1142/s0218625x13500133.

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The effects of pretreating atmospheres ( H2 , O2 and Ar ) on the activity for CO oxidation and Pd dispersion of Pd/Pr6O11 catalyst were investigated. The result shows after the Pd/Pr6O11 catalyst was pretreated by hydrogen or oxygen at 550°C, its catalytic activity for CO oxidation can obviously increase, and the activity of H2 -pretreated catalyst is superior to that of O2 -pretreated catalyst, which is attributed to an increase of Pd dispersion. The catalyst pretreated by Ar behaves the worst catalytic activity for CO oxidation. The results of CO pulse, CO chemisorption and in situ DRIFT tes
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25

Zhang, Tianli, Weiguang Wang, Yiming Ma, et al. "In Situ Observation of Microstructural and Inclusions Evolution in High-Strength Steel Deposited Metals with Various Rare Earth Pr Contents." Materials 15, no. 3 (2022): 1257. http://dx.doi.org/10.3390/ma15031257.

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The evolution of austenite, acicular ferrite, upper bainite and martensite, and the nucleation of inclusions in the microstructure of high-strength steel deposited metals, was systematically investigated using three kinds of A5.28 E120C-K4 metal-cored wires with various rare earth Pr contents. Grain structure evolution in the process of high temperature, dispersoid characteristics of inclusions and the crystallographic characteristics of the microstructure were assessed. Compared with no addition of Pr6O11, adding 1%Pr6O11 resulted in refined, spheroidized and dispersed inclusions in the depos
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26

Chiba, R., H. Aono, and K. Kato. "An SOFC Cathode Infiltrated with Pr6O11." ECS Transactions 57, no. 1 (2013): 1831–40. http://dx.doi.org/10.1149/05701.1831ecst.

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Chen, M., Z. L. Liu, Y. Wang, C. C. Wang, X. S. Yang, and K. L. Yao. "Ferroelectric properties of Pr6O11-doped Bi4Ti3O12." Solid State Communications 130, no. 11 (2004): 735–39. http://dx.doi.org/10.1016/j.ssc.2004.04.001.

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28

Matović, Branko, Jelena Pantić, Marija Prekajski, et al. "Synthesis and characterization of Pr6O11 nanopowders." Ceramics International 39, no. 3 (2013): 3151–55. http://dx.doi.org/10.1016/j.ceramint.2012.09.098.

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Krupa, Мykola. "Tunnel Magnetic Contacts with Perpendicular Anisotropy of Magnetic Electrodes as Promising Elements for Recording." DESIGN, CONSTRUCTION, MAINTENANCE 3 (December 31, 2023): 253–59. http://dx.doi.org/10.37394/232022.2023.3.24.

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Abstract (sommario):
This paper describes the mechanism of the appearance of the magnetic capacitance in tunnel magnetic contacts with magnetic electrodes that have perpendicular anisotropy, presents the results of measurements of the value of tunnel magnetic resistance and tunnel magnetic capacity in Tb22-Co5Fe73/ Pr6O11/Tb19-Co5Fe76 tunnel contacts. The work also provides a structural diagram of the construction of an information carrier based on tunnel magnetocapacitance and describes the principle of recording information in such a structure. This paper describes the mechanism of appearance of magnetic capac
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30

Zhao, Guiying, Yongcong Huang, Weijun Zhang, et al. "Pr6O11 interfacial engineering toward high-performance NCM523." Chemical Engineering Journal 441 (August 2022): 135929. http://dx.doi.org/10.1016/j.cej.2022.135929.

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31

ARDELEAN, I. "MAGNETIC PROPERTIES OF Pr6O11-B2O3-CdO GLASSES." Modern Physics Letters B 16, no. 08 (2002): 285–89. http://dx.doi.org/10.1142/s0217984902003786.

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Abstract (sommario):
Magnetic susceptibility measurements have been performed on x Pr 6 O 11 · (100 - x)- [2 B 2 O 3 · CdO ] glasses with 0 < x ≤ 30 mol%. The data give evidence that for x > 1 mol% the praseodymium ions in these glasses are in Pr3+ and Pr4+ valence states, which explains their magnetic behavior.
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Zhong, Sheng Wen, Qian Zhang, De Qiang Han, and Jing Zhong Kuang. "Preparation of Color Pearlescent Pigment Using Rare-Earth Oxide and Titanium Oxide to Coat Mica." Key Engineering Materials 280-283 (February 2007): 903–6. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.903.

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The rare earth of Er2O3, Nd2O3, Pr6O11 as pigmentation-type coating materials was used to coat the surface of mica by wet chemical deposition method. Then the color pearl luster pigment was synthesized by heat treatment. The coating was carried out by multiple-coating technique and the influence of technique parameters on the coating was studied systematically.
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33

Денисова, Л. Т., М. С. Молокеев, Н. А. Галиахметова, В. М. Денисов та Г. В. Васильев. "Синтез, кристаллическая структура и теплофизические свойства замещенных титанатов Bi-=SUB=-2-=/SUB=-Pr-=SUB=-2-=/SUB=-Ti-=SUB=-3-=/SUB=-O-=SUB=-12-=/SUB=- и Bi-=SUB=-2-=/SUB=-Nd-=SUB=-2-=/SUB=-Ti-=SUB=-3-=/SUB=-O-=SUB=-12-=/SUB=-". Физика твердого тела 63, № 8 (2021): 1056. http://dx.doi.org/10.21883/ftt.2021.08.51153.070.

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Abstract (sommario):
Титанаты Bi2Pr2Ti3O12 и Bi2Nd2Ti3O12 получены методом твердофазного синтеза последовательным обжигом на воздухе при температурах 1003-1323 K стехиометрических смесей Bi2O3, Nd2O3, Pr6O11 и TiO2. Методом рентгеновской дифракции определена их кристаллическая структура. Высокотемпературная теплоемкость определена с использованием дифференциальной сканирующей калориметрии. На основании экспериментальных данных Cp=f(T) рассчитаны основные термодинамические функции. Ключевые слова: замещенные титанаты висмута, твердофазный синтез, кристаллическая структура, высокотемпературная теплоемкость, термодин
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34

El-Hofy, M., A. El-Taabl, A. M. Abdel Aziz, and M. Elkhatib. "ZnO Varistor Defective Gd and Pr Ions." Defect and Diffusion Forum 332 (December 2012): 51–61. http://dx.doi.org/10.4028/www.scientific.net/ddf.332.51.

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To the best of our knowledge the difference in the magnetic properties of ions like Gd (7.94 μB) and Pr (3.58 μB) on the electrical properties of ZnO-varistor have not been studied. To clarify this effect, the binary systems, ZnO-Gd2O3, ZnO-Pr6O11and the ternary system ZnO-Gd2O3-Pr6O11were studied. The ceramics were prepared according to the chemical formula; (100-X) mol% ZnO - (X) mol% Y, where X = 0.5, 1, 2, 3.5, 5, 6, 7.5, 9 and 15, Y is Gd2O3, Pr6O11or Gd2O3 +Pr6O11. The samples have been sintered at 1200°C, 1250°C, 1300°C, 1350°C and 1400°C for 1 hr. X-Ray Diffraction (XRD), Scanning Elec
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35

Zinatloo-Ajabshir, Sahar, and Masoud Salavati-Niasari. "Nanocrystalline Pr6O11: synthesis, characterization, optical and photocatalytic properties." New Journal of Chemistry 39, no. 5 (2015): 3948–55. http://dx.doi.org/10.1039/c4nj02106a.

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36

Selvi, K. Tamizh, K. Alamelumangai, M. Priya, M. Rathnakumari, P. Suresh Kumar, and Suresh Sagadevan. "Studies on electrical properties of MgO/Pr6O11 nanocomposite." Nanomaterials and Nanotechnology 6 (January 2016): 184798041666727. http://dx.doi.org/10.1177/1847980416667274.

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37

Petrů, F., and A. Muck. "Infrarot-Absorptionsspektren von CeO2, Pr6O11, Nd2O3 und Sm2O3." Zeitschrift für Chemie 7, no. 1 (2010): 27. http://dx.doi.org/10.1002/zfch.19670070126.

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38

Kraus, Marianne, Bobby Florea, Jürgen Bader та ін. "Selective Inhibition of the proteasome's β2 Catalytic Subunit Alone Does Not Induce Cytotoxicity, but Resensitizes Bortezomib-Refractory Myeloma Cells for Bortezomib Treatment". Blood 118, № 21 (2011): 2915. http://dx.doi.org/10.1182/blood.v118.21.2915.2915.

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Abstract (sommario):
Abstract Abstract 2915 Bortezomib is a reversible first-generation proteasome inhibitor that inhibits the β5 and to a lesser extent the β1 catalytic site of the proteasome. However, bortezomib does not inhibit the β2 catalytic proteasomal site at clinically relevant concentrations, and bortezomib-resistance is accompanied by upregulation of the β2 subunit, suggesting that increased β2 activity may compensate for the loss of β1/ β5 activity during bortezomib-treatment. The second generation proteasome inhibitor carfilzomib, due to the chemistry of its epoxyketone warhead, has a higher substrate
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39

Nahm, Choon-Woo, and Hyang-Suk Kim. "Effect of Pr6O11/CoO mole ratio on nonlinear properties and DC accelerated aging characteristics of ZnO-Pr6O11-CoO-Dy2O3-based varistors." Materials Letters 56, no. 4 (2002): 379–85. http://dx.doi.org/10.1016/s0167-577x(02)00490-1.

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40

Ellouze, M., W. Boujelben, and H. Fuess. "Rietveld refinement X-ray powder data of Pr0.7Ba0.3MnO3." Powder Diffraction 18, no. 1 (2003): 29–31. http://dx.doi.org/10.1154/1.1515296.

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Abstract (sommario):
Powder X-ray diffraction (XRD) data were collected for Pr0.7Ba0.3MnO3. This sample was prepared using the conventional solid state reaction by mixing Pr6O11, Mn2O3, and BaCO3 up to 99.9% purity at 1400 °C in air for 60 h. XRD analysis using the Rietveld method was carried out and it was found that this manganite sample has orthorhombic symmetry with Pnma space group. The lattice parameters are found to be a=5.4900 Å, b=7.7578 Å, and c=5.5227 Å.
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41

Jing, Rishuang, Zhuoxin Yang, Li Sun, Zhongquan Nie, Zhichao Yu, and Ensi Cao. "Improved acetone sensing performance of Pr6O11-loaded ZnO nanorods." Materials Letters 304 (December 2021): 130682. http://dx.doi.org/10.1016/j.matlet.2021.130682.

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42

Krupa, N. N. "Spin-dependent tunneling conductance in TbCoFe/Pr6O11/TbCoFe films." JETP Letters 87, no. 10 (2008): 548–50. http://dx.doi.org/10.1134/s002136400810007x.

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43

Inaba, Tadashi, Keiichi Saji, and Jiro Sakata. "Characteristics of an HC sensor using a Pr6O11 electrode." Sensors and Actuators B: Chemical 108, no. 1-2 (2005): 374–78. http://dx.doi.org/10.1016/j.snb.2005.01.039.

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44

Abu-Zied, Bahaa M., Youssef A. Mohamed, and Abdullah M. Asiri. "Fabrication, characterization, and electrical conductivity properties of Pr6O11 nanoparticles." Journal of Rare Earths 31, no. 7 (2013): 701–8. http://dx.doi.org/10.1016/s1002-0721(12)60345-7.

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45

SAMMES, N., and G. GAINSFORD. "Phase stability and oxygen ion conduction in Bi2O3−Pr6O11." Solid State Ionics 62, no. 3-4 (1993): 179–84. http://dx.doi.org/10.1016/0167-2738(93)90370-i.

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46

Zhuang, Weidong, Cong Wang, Xiaolong Chen, Zhiyu Qiao, Jingkui Liang, and Guanhui Rao. "Phase Relations of the Nd2O3-Pr6O11-CuO Ternary System." Journal of Solid State Chemistry 115, no. 1 (1995): 291–94. http://dx.doi.org/10.1006/jssc.1995.1135.

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47

Wang, T. G., G. Q. Shao, W. J. Zhang, X. B. Li, and X. H. Yu. "Electrical properties of Pr6O11-doped WO3 capacitor–varistor ceramics." Ceramics International 36, no. 3 (2010): 1063–67. http://dx.doi.org/10.1016/j.ceramint.2009.12.004.

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48

Li, T. Y., H. Q. Wang, Z. Q. Hua, L. Dong, H. W. Zhao, and Y. Wang. "Densification and grain growth of CuO-doped Pr6O11 varistors." Ceramics International 36, no. 5 (2010): 1511–16. http://dx.doi.org/10.1016/j.ceramint.2010.02.028.

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49

Swarovski, Alexander Y., Alexander I. Soloviev, Anatoly L. Kalashnikov, et al. "Fluoride Technology of Processing Oxides of Rare Earth Elements." Advanced Materials Research 1084 (January 2015): 82–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1084.82.

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The paper describes the advantages and characteristics of the fluoride technology applicable for the recovery of oxides of rare earth elements with the help of a fluorinating agent of elemental fluorine. A metallurgical mixture (2.5 m2/g) of rare earth elements oxides of the cerium subgroup, containing % wt.: CeO2 - 50-55; La2 O3 - 23-25; Pr6O11 - 6-9, and Nd2O3 - 13-16 were studied. It has been shown, that using fluoride technology allows recovering mixture of rare earth elements with outlet no less than 98.9 %.
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50

Cvetković, Vesna S., Dominic Feldhaus, Nataša M. Vukićević, Tanja S. Barudžija, Bernd Friedrich, and Jovan N. Jovićević. "Electrochemical Study of Nd and Pr Co-Deposition onto Mo and W from Molten Oxyfluorides." Metals 11, no. 9 (2021): 1494. http://dx.doi.org/10.3390/met11091494.

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Abstract (sommario):
Electrodeposition processes of neodymium and praseodymium in molten NdF3 + PrF3 + LiF + 1 wt.%Pr6O11 + 1 wt.%Nd2O3 and NdF3 + PrF3 + LiF + 2 wt.%Pr6O11 + 2 wt.%Nd2O3 electrolytes at 1323 K were investigated. Cyclic voltammetry, square wave voltammetry, and open circuit potentiometry were applied to study the electrochemical reduction of Nd(III) and Pr(III) ions on Mo and W cathodes. It was established that a critical condition for Nd and Pr co-deposition in oxyfluoride electrolytes was a constant praseodymium deposition overpotential of ≈−0.100 V, which was shown to result in co-deposition cur
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