Article
Chemistry, Multidisciplinary
Lili Fu, Yongjin Gao, Ruilin Zheng, Qidong Feng, Ming Chen, Tianjie Qin, Chunxiao Liu, Wei Wei
Summary: In this study, CsPbBr3 nanocrystals were encapsulated in fluorophosphate glass to solve the issues caused by hydroxyl and oxygen in oxide glass. By optimizing the composition and heat treatment conditions of the glass matrix, the optical properties of CsPbBr3 nanocrystals were improved. The results showed that highly pure green light was achieved with CsPbBr3 nanocrystals@glass and LED/LD, with emission peak at 534 nm and a FWHM of approximately 19 nm. The CIE coordinates of the devices were (0.243, 0.723) and (0.239, 0.739), with color purities of 96.6% and 97.3%, respectively. The PLQYs of the samples excited at 365 nm and 450 nm wavelengths were 34.54% and 38.85%, respectively. Additionally, the encapsulation in FP glass significantly improved the chemical stability of CsPbBr3 nanocrystals, retaining 88% of the original PL intensity after 30 days of storage in deionized water.
JOURNAL OF NANOPARTICLE RESEARCH
(2023)
Article
Materials Science, Ceramics
Dongwei Zhang, Xin Xu, Tianlai Yu, Dahong Mo, Jinlong Diao, Tao Zheng, Yanyan Guo, Jingwen Lv
Summary: In this study, a glass composition with P2O5-53SnF(2)-2B(2)O(3) was prepared and characterized under a nitrogen atmosphere. The presence of new P-N and P = N bonds in the glass network was confirmed, and the transition temperature and weight loss of the glass were found to be influenced by the NH4H2PO4 content. This work demonstrates the potential of nitride tin-boron-fluorophosphate glass as a low-temperature sealing material with satisfactory properties.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Ceramics
E. Kolobkova, M. S. Kuznetsova, N. Nikonorov
Summary: CsPbX3 (X=Cl, Br, I) nanocrystals were successfully synthesized in fluorophosphate glasses for the first time, with controlled formation through adjustment of cooling rate and heat treatment conditions. The X-ray diffraction data and optical measurements confirmed the formation of 4-11 nm sized CsPbX3 nanocrystals, with the presence of two narrow bands in the luminescence spectra due to the introduction of two anions complicating the preparation process. The CsPb(Cl, Br)3 quantum dots exhibited high intensity photoluminescence with a quantum yield of 45-50% and narrow emission band.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Ceramics
Xu Wang, Ying Tian, Yanfei Zhang, Dingchen Tang, Bingpeng Li, Junjie Zhang, Shiqing Xu
Summary: The thermal stability and structural evolution of a fluorophosphate glass system were studied. Increasing the content of metaphosphate improved the thermal stability, with optimal stability achieved at specific levels of alkaline and alkaline earth metal fluorides. Raman, FT-IR, and 31P NMR results indicated that the increase in Al(PO3)3 and NaF content enhanced the O-P-O and P-O-P bonds, which contributed to the structural stability of the glass. The expansion of Al(PO3)3 content resulted in structural distortion and increased disorder in the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Junhao Xing, Limin Liu, Fei Shang, Guohua Chen
Summary: Transparent glass ceramics Sr-5(PO4)(3)F were successfully prepared from low-cost lead-free borate glasses, showing improved luminescence properties and potential application in optical temperature sensing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Katarzyna Gas, Slawomir Kret, Wojciech Zaleszczyk, Eliana Kaminska, Maciej Sawicki, Tomasz Wojtowicz, Wojciech Szuszkiewicz
Summary: The study demonstrates the transformation of ZnTe nanowires into ZnO during oxidation, affecting both the outer and inner structure. Depositing thin Zn shells prior to oxidation can improve the morphology of resulting ZnO. The oxidation process results in separated ZnO nanocrystals in bare ZnTe nanowires, while uniform ZnO shells with fine-crystalline or partially amorphous structures are formed in Zn-covered nanowires.
Article
Materials Science, Multidisciplinary
Fei Gao, Faqiang Zhang, Liqing Yang, Zhiyuan Ma, Feng Yang, Bin Hu, Bo Peng, Chunliang Liu, Pengfei Wang
Summary: The effects of introducing KNO3 on the preparation of fluorophosphate glass were investigated, and it was found that adding 50% KNO3 resulted in the lowest UV absorption coefficient. The optimized glass maintained a negative temperature coefficient of refractive index and a near-zero thermo-optical coefficient. The lower absorption in both UV and near-infrared helped improve laser-induced damage resistance. This athermal fluorophosphate glass has great potential for compensating thermal-induced distortion in high-power solid state lasers and high-resolution optical systems.
Article
Materials Science, Multidisciplinary
Junhao Xing, Zhixin Gao, Ying Luo, Fei Shang, Guohua Chen
Summary: In this paper, Tb3+/Eu3+ co-doped P2O5-B2O3-ZnO-CaF2 glasses and glass ceramics were fabricated, and the structure, luminescence, and temperature sensing characteristics were studied. The crystal phase precipitated in the glass was identified as calcium Ca5(PO4)3F. The temperature sensing behavior in the range of 403-753 K was determined based on the fluorescence intensity ratio of the emission bands of Eu3+ and Tb3+. The glass and glass ceramics showed promising sensitivity for optical thermometry.
Article
Multidisciplinary Sciences
Yan Liu, Tingting Zheng, Xiuyun Zhang, Chen Chen
Summary: In this study, ZnGa2O4 nanoflowers with full-color luminescent properties were successfully prepared by hydrothermal method at low temperature. The nanoflowers displayed blue, green, and red luminescence through different material doping. It has great potential for applications in color display, biological imaging, and white light devices.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Ceramics
Xiao Zhao Shi, Yi Gu, Tao Yong Liu, Zong Hao Jiang, Ren Li, Fanhao Zeng
Summary: In this experiment, phosphate glasses with different compositions were prepared and studied for their structure, properties and chemical stability. The results showed that the reduction of P-O-P bonds by fluorine led to the transformation of glass structure and a decrease in average chain length. The incorporation of Sn2+ ions as glass formers increased the size of the glass network. The phosphate glass exhibited low characteristic temperature and large thermal expansion coefficient, but demonstrated good chemical stability.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Ceramics
Xin Peng, Yongping Pu, Xinyi Du, Yuxin Hao, Dawei Wang
Summary: In this study, a series of K2O-Na2O-Nb2O5-B2O3-P2O5 glass-ceramics with different P2O5 contents were fabricated, and their microstructure and properties were comprehensively investigated. The addition of P2O5 can modify the glass network structure, affecting the phase composition and optical properties of the materials. The prepared glass-ceramics exhibit high transparency, large energy density, and high energy storage efficiency, showing potential for application in transparent pulse capacitors.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Marcin Sroda, Szymon Swiontek, Zbigniew Olejniczak
Summary: A study on six fluorophosphate glasses revealed that the composition, particularly the content of lithium fluoride, significantly influences their thermal and luminescence properties. Increasing the lithium fluoride content improves thermal stability, reduces crystallization, and enhances thermoluminescence intensity and response.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Optics
E. V. Kolobkova, R. Semaan, M. S. Kuznetsova, N. V. Nikonorov
Summary: The temperature dependence of photoluminescence of CsPbBr3 perovskite nanocrystals in fluorophosphate glass with sizes of 6.0-9.0 nm was investigated for the first time. It was observed that the photoluminescence intensity and band gap shift coefficient showed a change at 350 K, which corresponds to an isostructural phase transition. Above this temperature, the photoluminescence intensity decreased significantly. The temperature energy gap coefficients of the CsPbBr3 nanocrystals were found to depend on their size and temperature range.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Cheng Qin, Min Jin, Rulin Zhang, Lina Zhou, Xudong Bai, Miaosen Yang, Wen Li
Summary: In this work, a Bi0.5Sb1.5Te3 single crystal doped with 6 mol% ZnTe was successfully fabricated using a vertical Bridgman method. The crystal exhibits remarkable anisotropy of TE properties parallel and perpendicular to the (001) cleavage plane, showing potential for expanded applications compared to commercial Bi2Te3-based TE materials.
Article
Materials Science, Ceramics
Sha Li, Jie Zhang, Mingming Li, Jiaxi Liu, Xiangyuan Wang, Xianhui Mei, Yin Zhang
Summary: This study investigated the effects of B2O3 and CaF2 on the density, molar volume, thermal expansion coefficient, and glass softening temperature of boron-bismuth/fluorine-oxygen glasses. Changes in the glass network structure and thermal stability were observed with varying B2O3 and CaF2 content. Selecting glasses with good comprehensive performance and pre-formulating corresponding heat treatment systems are key to obtaining glass ceramics with good crystallinity.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Polymer Science
Z. A. Alrowaili, R. M. Ahmed, Ahmed Saleh, Abdelazim M. Mebed, T. A. Taha
Summary: The dielectric properties of PVC-fGO films were studied in different temperatures, showing that the high dielectric constant values at low frequencies in different nanocomposites were induced by the space charge effect from electrode polarization. The maximum barrier height decreased with increasing temperature and was independent of the fGo content. The real dielectric modulus decreased with increasing fGO content, while the AC conductivity increased up to 0.3 wt% of fGO and then decreased.
Article
Materials Science, Ceramics
Muhammad Abdullah, Mohd Zahid Ansari, Zahoor Ahamd, Peter John, Sumaira Manzoor, Ahmed M. Shawky, H. H. Hegazy, Adeel Hussain Chughtai, Muhammad Naeem Ashiq, T. A. Taha
Summary: Developing an effective energy storage system, especially for renewable energy sources, is crucial given their significant growth in the past decade. Metal chalcogenides have shown promise in energy conversion and storage. In this study, a novel hierarchical Ag2Se/SnTe nanocomposite was fabricated through a one-step hydrothermal approach for supercapacitor applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
T. A. Taha, Rana Saad, Mohamed Zayed, Mohamed Shaban, Ashour M. M. Ahmed
Summary: ZnO nanostructures were synthesized using the SILAR strategy and the CBD method, showing different shapes depending on the deposition time. XRD analysis revealed hexagonal wurtzite structures with an increased crystallite size and reduced bandgap as the deposition time increased. The ZnO @ 12 h sensor exhibited enhanced sensitivity, higher response to CO2, and excellent selectivity compared to hydrogen and ammonia.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Review
Chemistry, Multidisciplinary
Asif Hayat, Muhammad Sohail, Hamid Ali, T. A. Taha, H. I. A. Qazi, Naveed Ur Rahman, Zeeshan Ajmal, Abul Kalam, Abdullah G. Al-Sehemi, S. Wageh, Mohammed A. Amin, Arkom Palamanit, W. I. Nawawi, Emad F. Newair, Yasin Orooji
Summary: The demand for renewable and sustainable fuel alternatives is increasing, and fuel cell technologies play a crucial role in meeting this demand. Electrochemical water splitting for hydrogen synthesis is considered a viable and efficient method. Developing reliable and cost-effective technology is a top priority for scientists worldwide. Utilizing renewable technologies to reduce fuel consumption is essential for hydrogen evolution. This article provides an overview of metal catalysts and evaluation techniques, as well as future research directions.
Article
Engineering, Electrical & Electronic
Z. A. Alrowaili, Mai Medhat, T. A. Taha, Ahmed Mehaney, Lama Sh Aljoufi, Hussein A. Elsayed
Summary: In this research, a theoretical model structure of one-dimensional photonic crystals for multichannel optical filtering is introduced. The design consists of alternating layers of hyperbolic metamaterial and SiO2, and numerical findings show the impact of periodicity, layer thickness, and refractive index on the filtering properties. The designed structure may enhance photonic and optical applications, particularly in the visible light range.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Numa A. A. Althubiti, T. A. Taha, A. A. Azab, Hani Nasser Abdelhamid
Summary: The use of solid-state materials such as sodium borohydride for hydrogen storage and release can meet the requirements of the "Hydrogen Economy". This study investigated ZnO-based materials as catalysts for hydrogen release through the hydrolysis of NaBH4. The synthesis method produced nanocomposites consisting of ZnO-xTiO(2) and ZnO-xCeO(2) (x = 5 wt.% or 10 wt.%). Characterization techniques confirmed the phase purity and optical properties of the materials. The materials exhibited a high hydrogen generation rate and different activation energies.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Asif Hayat, Muhammad Sohail, Atef El Jery, Khadijah M. Al-Zaydi, Saleem Raza, Hamid Ali, Yas Al-Hadeethi, T. A. Taha, Israf Ud Din, Moonis Ali Khan, Mohammed A. Amin, Ehsan Ghasali, Yasin Orooji, Zeeshan Ajmal, Mohd Zahid Ansari
Summary: Due to energy constraints and global warming, finding renewable and affordable alternative energy sources has become essential. The use of sustainable technologies for renewable fuel retention applications is beneficial in promoting clean energy usage. Conjugated microporous polymers (CMPs), a family of composites with extensive p-conjugation and microporous structure, have been recognized as important porous composites since their development in 2007. CMPs have various configurations and characteristics, making them versatile for sustainable fuel devices and environmental design. They have been employed in various applications, such as lithium ion batteries, supercapacitors, and hydrogen storage materials. The review evaluates the shortcomings of CMPs in energy production and presents potential strategies and synthetic processes for their improvement.
Article
Chemistry, Multidisciplinary
Alhulw H. H. Alshammari, Khulaif Alshammari, Turki Alotaibi, Majed Alshammari, Sultan Alhassan, Taha Abdel Mohaymen Taha
Summary: The nanocomposites of S@g-C3N4 and NiS-g-C3N4 with different NiS concentrations were synthesized and characterized. The NiS-g-C3N4 nanocomposites showed increased porosity and improved photocatalytic performance. The highest hydrogen production rate was achieved with the sample containing 1.5 wt.% NiS nanosheet.
Article
Chemistry, Physical
Asif Hayat, Muhammad Sohail, Atef El Jery, Khadijah M. Al-Zaydi, Saleem Raza, Hamid Ali, Zeeshan Ajmal, Amir Zada, T. A. Taha, Israf Ud Din, Moonis Ali Khan, Mohammed A. Amin, Yas Al-Hadeethi, Abeer Z. Barasheed, Yasin Orooji, Javid Khan, Mohd Zahid Ansari
Summary: Two-dimensional materials have unique chemical, physical, and electrical characteristics, which make them promising for applications in energy and catalysis. They have been widely studied for their remarkable structural and electronic properties, and their large surface area, theoretical capacity, anisotropy, mobility, and tunable bandgaps make them attractive for energy storage and conversion. Recent advancements in the synthesis and analysis of various 2D materials have been noteworthy, and their application in energy production and catalyst purposes is highly significant.
ENERGY STORAGE MATERIALS
(2023)
Article
Materials Science, Ceramics
Hossam Donya, Reem Darwesh, Maged F. Alotaibi, Hafiz Muhammad Tahir Farid
Summary: This study focuses on the preparation of ferrite nanocomposites using sol-gel process and in-situ synthesis of polyaniline. The combination of ferrite and polyaniline leads to a decrease in dielectric parameters and an increase in magnetic and electrical properties. These materials may be suitable for high-frequency applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Asma M. Alenad, Muhammad Suleman Waheed, Salma Aman, Naseeb Ahmad, Abdul Rauf Khan, Rabia Yasmin Khosa, Mohd Zahid Ansari, Sajjad Ahmad Khan, Hafiz Muhammad Tahir Farid, Taha Abdel Mohaymen Taha
Summary: In this study, pure Fe2O3 and three different Ni-doped Fe2O3 nanoparticles with doping concentrations of 5%, 10%, and 15% were synthesized using an eco-friendly hydrothermal approach. The materials were characterized using various techniques, which confirmed the incorporation of Ni2+ ions into Fe2O3 and the reduction in particle size and aggregation. The Ni doping also resulted in a decrease in bandgap energy and an enhancement in photocatalytic activity. Among the samples, 10% Ni-doped Fe2O3 nanoparticles exhibited the highest methylene blue degradation after 100 minutes.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Energy & Fuels
Numa A. Althubiti, Muhammad Miqdad Hassan, Muhammad Suleman Waheed, Salma Aman, Rabia Yasmin Khosa, Hafiz Muhammad Tahir Farid, Asghar Nazir, Mohd Zahid Ansari, Fahad Abdulaziz, Taha Abdel Mohaymen Taha
Summary: This research investigates the electrochemical characterization of ZnSe/CdO nanocomposite as supercapacitor electrodes using the hydrothermal technique. The material is thoroughly analyzed for its structure, morphology, surface area, functional groups, and composition. The ZnSe/CdO nanocomposite exhibits high-performance supercapacitor properties, including a specific capacitance of 1006.8 Fg-1, energy density of 91.45 Wh kg-1, and a retention rate of 92% after 40 hours of continuous use. The study highlights the potential of the hydrothermal synthesis method for the production of efficient supercapacitor materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Environmental Sciences
Moustafa M. S. Sanad, Taha A. Taha, Ahmed Helal, Mohamed H. Mahmoud
Summary: This research aimed at optimizing the preparation and characterization of efficient g-C3N4/Co3O4 nanocomposite for catalytic removal of Rhodamine B (Rh B) dye. The developed nanocomposite exhibited high stability in its photocatalytic performance after multiple recycling times.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
H. A. Alburaih, Sumaira Manzoor, M. Abdullah, M. N. Ashiq, Salma Aman, Sergei V. Trukhanov, Tatiana I. Zubar, Zhipeng Sun, T. A. Taha, Alex V. Trukhanov
Summary: In this study, metal oxy-hydroxides with numerous oxygen defects (M-OOHv) were synthesized on the surface of Cu foam (CF) through a straightforward electro-oxidation reconstitution (ER) process. The Al2Cu-MOF@M-OOHv-ER/CF nanomaterial showed lower overpotential and higher Tafel slope, indicating enhanced OER activity. This newly developed nanomaterial has great potential for applications in water electrolysis and other energy storage devices.
Article
Chemistry, Multidisciplinary
Abdulkarem H. M. Almawgani, Hussein A. Elsayed, Ahmed Mehaney, T. A. Taha, Ziyad Awadh Alrowaili, Ghassan Ahmed Ali, Walied Sabra, Sayed Asaduzzaman, Ashour M. Ahmed
Summary: In this research, a simple and highly sensitive sodium chloride (NaCl) sensor based on Tamm plasmon resonance was proposed. The sensor was designed to monitor water salinity by detecting the concentration of NaCl solution using near-infrared (IR) wavelengths. Numerical analysis showed Tamm plasmon resonance and as the concentration of NaCl increased, the resonance shifted towards longer wavelengths. The suggested sensor exhibited higher performance compared to other photonic crystal designs, with a sensitivity of 24,700 nm per RIU and a detection limit of 0.217 g l(-1).
