Article
Materials Science, Ceramics
Shadpour Mallakpour, Mina Naghdi
Summary: A bone scaffold was fabricated using a hybrid of TiO2@LDH to leverage the advantages of both nanostructures, with LDH providing a suitable bed for TiO2 nanoparticles and Alg embedding them for stability. The scaffold showed excellent biomineralization and antibacterial properties, making it a promising candidate for bone tissue engineering.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Ai Ling Pang, Muhammad Saqlain Iqbal, Nik Akmar Rejab, Ujjwal Pal, Muhammad Aniq Shazni Mohammad Haniff, Ahmad Ghadafi Ismail, Azrul Azlan Hamzah, Mohsen Ahmadipour
Summary: The study focuses on the influence of calcination temperature on the features and photocatalytic performance of sol-gel synthesized CaCu3Ti4O12 nanoparticles. Characterization of the nanoparticles was done using various methods to examine their structure, composition, morphology, and optical properties. Photodegradation of a cationic dye was used to evaluate the photocatalytic performance. Results showed that calcination improved the crystallinity and reduced the optical bandgap energy of the nanoparticles, leading to enhanced photocatalytic activity. The sample calcined at 900 degrees C demonstrated the highest photodegradation efficiency and excellent recyclability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Siqi Cheng, Wenna Li, Shunhua Xiao, Shuai Zheng, Zhuo Chen, Lizhen Hu, Qing Zhu, Bin Huang, Qingquan Liu, Quanqi Chen
Summary: The calcination temperature significantly affects the physical and electrochemical performance of Na4MnV(PO4)(3)/C composites. The surface area, carbon disorder, Na+ diffusion coefficients, and electrochemical performance are greatly influenced by the calcination temperature. Additionally, the optimal calcination temperature for the composites is found to be 750 degrees C, resulting in the highest capacity, best rate capability, and cyclability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Amun Amri, Yola Bertilsya Hendri, Edy Saputra, Desi Heltina, Chun-Yang Yin, M. Mahbubur Rahman, Manickam Minakshi, Nicholas Mondinos, Zhong-Tao Jiang
Summary: The formation kinetics of LiFePO4 Olivine synthesized through sol-gel route was studied using a non-isothermal approach. The results showed that temperature played a crucial role in the synthesis of LiFePO4, with an optimal calcination temperature of 700°C yielding LiFePO4 Olivine with high crystallinity, better lattice parameters, and phase purity.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Maximiliano Jesus Jara Fornerod, Alberto Alvarez-Fernandez, Eric R. Williams, Maximilian W. A. Skoda, Beatriz Prieto-Simon, Nicolas H. Voelcker, Morgan Stefik, Marc-Olivier Coppens, Stefan Guldin
Summary: Mesoporous thin films are widely used for their high surface area and efficient mass and charge transport properties. A two-step calcination process can reduce film contraction and enhance structural control, resulting in mesoporous films with higher porosity and larger pores. These films exhibit favorable characteristics for mass transport of large molecules.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Amrutesh Kannolli, P. Avinash, S. R. Manohara, Mohsina Taj, M. G. Kotresh
Summary: The study focuses on the synthesis and characterization of ZnFe2O4, specifically zinc nanoferrites (NFs), using the sol-gel method. The effect of calcination at different temperatures on the synthesized zinc NFs was investigated. X-ray diffraction (XRD) analysis reveals a single-phase cubic spinel structure, with crystalline sizes ranging from 14.1 nm to 21.7 nm at different calcination temperatures. Fourier transform infrared spectroscopy (FTIR) confirms the formation of ferrites, while scanning electron microscopy (SEM) shows a spherical grain-like structure without significant agglomeration. Vibrating sample magnetometer (VSM) measurements indicate the ferromagnetic characteristics of the synthesized NFs, with higher calcination temperatures leading to increased saturation magnetization. Dielectric studies show higher dielectric constants at lower frequencies, but constant values at higher frequencies. Overall, the calcination of synthesized zinc NFs improves their structural, magnetic, and electrical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Engineering, Chemical
Samuel Ntakirutimana, Wei Tan
Summary: The study examined the composite of activated carbon with titania prepared via Tween 80-assisted sol-gel process, and systematically scrutinized the effects of Tween 80 on the properties of the composite using multiple analytical techniques. The results demonstrated the essential role of Tween 80 in enhancing the specific capacitance and efficiency of the composite, indicating a novel strategic approach for carbon-metal compound composites synthesis with fundamental aspects for CDI application.
Article
Materials Science, Multidisciplinary
Chelladurai Sasirekha, Sinnaswamy Arumugam, Gopalan Muralidharan
Summary: The present work synthesized ZnO/C nanocomposites using sucrose as a capping agent and carbon source through the sol-gel technique, and studied the effect of calcination temperature on their structural, morphological, and electrochemical properties. The study found that the best electrochemical characteristics were achieved at a calcination temperature of 400 degrees C, with a maximum specific capacitance of 820 F g(-1) and low charge transfer resistance of 1.8 Omega.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Irshad U. Khan, Murali Mohan Seepana, K. S. Rajmohan, Jay Pandey
Summary: Research shows that the cost of vanadium electrolyte restricts the grid-scale application of organic flow batteries. A tungsten trioxide doped carbon (WO3/C) electrocatalyst is developed and examined for its potential in hydroquinone - benzoquinone redox flow battery (HQ/BQ RFB). The electrochemical activity of the synthesized WO3/C electrocatalyst is found to be improved, providing active sites and enhancing the electrochemical reactions kinetics in HQ/BQ RFB.
Article
Materials Science, Ceramics
Kuo-Chin Hsu, Bo-Da Chen, Te-Hua Fang, Chao-Ming Hsu
Summary: In this study, tungsten oxide (WO3) nanofibers were prepared using electrospinning technology and combined with La0.8Pb0.2FeO3 (LPFO) perovskite materials to form a heterostructure film for gas sensing applications. The pure WO3 nanofiber gas sensor showed excellent sensing for nitrogen dioxide (NO2) and hydrogen sulfide (H2S), while the WO3/LPFO heterostructure film gas sensor exhibited a high response to H2S but suppressed response to NO2. The WO3/LPFO heterostructure film gas sensor greatly improved gas selectivity, with specific sensitivity towards H2S gas.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
K. K. Purushothaman, G. Muralidharan, S. Vijayakumar
Summary: WO3 films were prepared via sol-gel dip coating method and their properties were studied. The films exhibited 74% transmission on glass substrate, with a thickness of about 260 nm and a smooth surface. They were used to develop complementary electrochromic smart windows in conjunction with NiO and Ni0.95Co0.05O.
Article
Materials Science, Ceramics
Zhuxing Tang, Yingjie Tao, Wenjie Zhang
Summary: The low-density TiO2-GB composite materials were synthesized via a sol-gel route with the support of glass bubbles. The bandgap energies and photocatalytic performance of the composites varied with different calcination temperatures.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
L. U. Kruger, C. M. Cholant, M. P. Rodrigues, J. A. Gomez, D. M. Landarin, C. S. Lucio, D. F. Lopes, L. O. S. Bulhoes, C. O. Avellaneda
Summary: Photochromic films are thin films capable of optical changes in response to light stimulation. This study focuses on the preparation and characterization of tungsten oxide (WO3) thin films and its derivatives.
Article
Chemistry, Multidisciplinary
Siqi Qu, Jing Guan, Dongqi Cai, Qianshuo Wang, Xiuyun Wang, Wei Song, Wei Ji
Summary: Electrochemical surface-enhanced Raman scattering (EC-SERS) spectroscopy is an ultrasensitive technique that provides mechanistic and dynamic information on electrochemical interfaces at the molecular level. This study developed a reliable EC-SERS substrate for studying molecular dynamics at electrochemical interfaces. The results not only provide new insights into the chemical mechanism of SERS, but also into the hot-electron transfer mechanism in metal-semiconductor heterostructures.
Article
Materials Science, Ceramics
K. Park, H. Kim, G. W. Jung, S. Y. Gwon, D. H. Kim
Summary: Ce3+ and Pr3+ co-doped Lu3Al5O12 phosphors were synthesized by the sol-gel process. Their crystal structure, photoluminescence properties, and energy transfer from Ce3+ to Pr3+ were studied. The phosphors showed green-yellow and red emission, with the red emission intensity enhanced by the incorporation of Pr3+.
CERAMICS INTERNATIONAL
(2022)