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Showing 1-20 of 3,966 results

  1. Catalytic Performance of Microporous and Hierarchical Zeolites in Condensation of Acetone with Ammonia

    Abstract

    The study investigates the catalytic performance of microporous (H–Y) and micro–meso–macroporous (H–Y h , Fe 2 O 3 /H–Y h , PbO/H–Y h , and La–H–Y h )...

    N. G. Grigor’eva, N. A. Filippova, ... B. I. Kutepov in Petroleum Chemistry
    Article 30 August 2022

  2. The Influence of Various Cationic Group on Polynorbornene Based Anion Exchange Membranes with Hydrophobic Large Steric Hindrance Arylene Substituent

    A series of brominated polynorbornene derivatives, including bulky steric hydrophobic groups and highly physical and chemical stable backbones, were...

    Wei Wang, Da-Fu Cao, ... Yue-Sheng Li in Chinese Journal of Polymer Science
    Article 16 September 2022

  3. Group 14

    This chapter covers the elements of Group 14 (C to Pb). Many properties of these elements are tabulated. There is extensive coverage of the natural...
    Robert B. Jordan in Principles of Inorganic Chemistry
    Chapter 2024

  4. The Tensile Strength of Polymer Fibres

    A theory of the tensile strength of oriented polymer fibres is presented. From an analysis of the observed fracture envelope it is shown that the...
    M. G. Northolt, P. den Decker, ... R. Schlatmann in Polymeric and Inorganic Fibers
    Chapter

  5. Exploring the Impact of PbO in Improving the Gamma Radiation Shielding Characteristics of Silicate Glasses

    The main objective of this study is to demonstrate the different radiation shielding parameters for SiO 2 -PbO-Na 2 O-B 2 O 3 glass systems using Phy-X...

    M. I. Sayyed in Silicon
    Article 25 November 2023

  6. Ceramic, Glass, and Glazed Materials I

    The application of electrochemical techniques to the study of ceramic, glass, and glazed materials is described. Issues in this domain include...
    Antonio Doménech-Carbó, María Teresa Doménech-Carbó in Electrochemistry for Cultural Heritage
    Chapter 2023

  7. Electrochemical Metal Dating

    Electrochemical techniques aimed at data archaeological metal artifacts are described. These are based on the assumption that, under favorable...
    Antonio Doménech-Carbó, María Teresa Doménech-Carbó in Electrochemistry for Cultural Heritage
    Chapter 2023

  8. PbF2 as Radiation Shielding Modifiers in Silicate Glass Compositions

    The radiation shielding performance of three lead fluoroborate glasses containing 30 mol% SiO 2 was studied. The radiation shielding properties for...

    M. I. Sayyed in Silicon
    Article 18 December 2023

  9. The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst for propane dehydrogenation

    Similar to Sn, Pb located at the same group (IVA) in the periodic table of elements, can also catalyze propane dehydrogenation to propene, while a...

    Guowei Wang, Lanhui Zhou, ... Honghong Shan in Frontiers of Chemical Science and Engineering
    Article 05 June 2023

  10. Enhancement of Borosilicate Glass's Radiation Shielding Properties: Impacts of PbO Substitution for SiO2

    The objective of this study is to prepare SiO 2 -B 2 O 3 -Na 2 O-PbO glass systems and to study the radiation shielding properties of the prepared glasses....

    M. I. Sayyed, Alaa M. Al-Ma’abreh, ... K. A. Mahmoud in Silicon
    Article 18 November 2023

  11. Radiation Shielding Performance of Amorphous Silicates in the System SiO2-Na2O– RO (R = Cd, Pb or Zn)

    We aimed to investigate the radiation shielding performance of ternary sodium silicate glasses containing Cd, PbO or ZnO. The mass attenuation...

    M. I. Sayyed in Silicon
    Article 15 September 2023

  12. PbSnO3@nitrogen-doped carbon nanocomposites as anode materials for lithium-ion batteries

    Pure PbSnO 3 was prepared by a simple liquid-phase precipitation reaction. A layer of polydopamine was coated on the surface of the pure PbSnO 3 ...

    **nyue Zhang, Tianming Lu, ... Deren Chu in Journal of Applied Electrochemistry
    Article 01 March 2024

  13. Exploring Gamma Radiation Shielding: the Role of BaO in Borosilicate Glasses

    The gamma ray shielding characteristics of different borosilicate glasses are examined in this work. Four glasses with a composition of 60B 2 O 3 –5Na 2 O–5PbO–(30-x)SiO...

    M. I. Sayyed, Aljawhara H. Almuqrin, ... Mohamed Elsafi in Silicon
    Article 12 June 2024

  14. Block Copolymer Micelles

    This review summarizes recent advances to date in the area of block copolymer micelles and also tries to highlight some new directions in that...
    Jean-François Gohy in Block Copolymers II
    Chapter

  15. Environmentally Friendly Sizing Strategy for PBO Fiber-reinforced Composites through Building Carbon Nanosphere Coatings

    Sizing treatment has shown great potential in improving the interfacial properties of poly( p -phenylene benzodioxazole) (PBO) fiber-reinforced...

    Rong Ling, Shao-Hua Wu, ... Bo Zhang in Chinese Journal of Polymer Science
    Article 08 October 2022

  16. Analysis of Dielectric Characteristics of Lead Oxide/p-type Silicon Structure in a Wide Frequency and Voltage Region

    Here, the dielectric features of the Pb/PbO/p-Si junction, which was experimentally formed by the SILAR method, were researched in the frequency...

    E. Erdem, O. Gullu in Silicon
    Article 20 January 2023

  17. PREPARATION, CRYSTAL STRUCTURE, AND DIELECTRIC PROPERTIES OF NEW SOLID SOLUTIONS (Pb1–2xWx)O1+x (x ≈ 0.05) BASED ON THE TETRAGONAL FORM OF LEAD OXIDE

    Abstract

    Single crystal X-ray diffraction (XRD), thermogravimetric, and dielectric studies are performed for single and polycrystalline samples of [(1–

    A. A. Bush, V. I. Kozlov, ... S. A. Ivanov in Journal of Structural Chemistry
    Article 01 January 2023

  18. Impact of BaO Content on Gamma Radiation Shielding Attributes of Borosilicate Glasses at Low Energy Range

    The current study investigates the radiation shielding characteristics of 5Al 2 O 3 -25PbO-10SiO 2 -(60-x) B 2 O 3 -xBaO, (x = 5, 10, 15 and 20 mol%) at the...

    M. I. Sayyed, Aljawhara H. Almuqrin in Silicon
    Article 02 April 2024

  19. Synthesis and Gamma-ray Shielding Efficiency of Borosilicate Glasses Doped with Zinc Oxide: Comparative Study

    This study examined the suitability of several glass compositions as a gamma-ray shielding substance. The compositions tested were of varying ZnO...

    Abdelmoneim Saleh, M. I. Sayyed, ... Fatma Elzahraa Mansour in Silicon
    Article Open access 09 May 2024

  20. SiO2/Ag2O Substitution of Borosilicate Glasses: Preparation, Structure, Physical Features and γ-ray Protection Capability

    In this study, nature, physical characteristics and γ-ray protection features of the 50B 2 O 3  + 1Tb 4 O 7  + (20-X)SiO 2  + 19BaF 2  + 10Li 2 O + XAg 2 O, where...

    Nada Alfryyan, Hanan Al-Ghamdi, ... Y. S. Rammah in Silicon
    Article 15 June 2024
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