Article
Materials Science, Ceramics
Jingwei Zhao, Zhonghua Yao, Zhijian Wang, Ning Zhang, Hua Hao, Minghe Cao, Hanxing Liu
Summary: By employing microstructural engineering, an optimized lead-free Zr-modified BiMg0.5Zr0.04Tix-0.04O3 composition was developed to enhance energy storage behavior, achieving superior energy properties and high efficiency. Rapid annealing and excess Ti source doping effectively increased polarization and dielectric breakdown levels.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Minsu Lee, Hohyeong Kim, Hyungsub Kim, Akash Katoch, Jae Young Park
Summary: This study investigated the effect of the mixing ratio of TiO2 nanoparticles (P25) and titanium alkoxide (T-sol) on various properties of TiO2 films. The specific surface area, microstructure, thickness, transmittance, pencil hardness, and oil contact angle of the films were analyzed. The results showed that the specific surface area increased as the P25 content increased, but this effect decreased as the ratio of T-sol to P25 increased. The thickness, surface roughness, transmittance, pencil hardness, and oil contact angle of the films were also affected by the P25 content, with increased thickness and surface roughness, decreased transmittance and pencil hardness, and decreased oil contact angle.
Article
Electrochemistry
Pei-Te Lin, Chih-Ying Yu, Sin-Huei Ho, Shiuan-Wei Pan, Jyun-Siang Jhang, Yi-Xun Zhang, Yo-Lun Zhang, Tian-Tsz Hsieh, Hao-Chien Wang, Wen-Jeng Hsueh, Chun-Ying Huang
Summary: The photochemical activation process is a promising way to operate metal oxide gas sensors at room temperature, but currently limited to n-type semiconductors. In this study, a highly stable p-type copper gallium oxide (CuGaO2) gas sensor was fabricated through the facile sol-gel process. It can detect O-3 gas at room temperature and its gas response can be further enhanced by UV activation, achieving a highest gas response of 7.12 to 5 ppm O-3 gas at a UV intensity of 10 mW cm(-2). Additionally, the CuGaO2 sensor exhibits excellent long-term stability with only approximately 3% degradation over 90 days.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Materials Science, Ceramics
Helei Dong, Hao Zhang, Feng He, Zhen Jia, Kailong Wei, Qiulin Tan
Summary: In order to gain an economic advantage, nanocrystalline Ba0.5Sr0.5TiO3 (BST) thin films were prepared using an aqueous sol-gel process. Characterization through X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirmed the perovskite structure of the films and the oxidation state of the Ba element. The BST thin film prepared at a lower annealing temperature of 600 degrees C showed optimal crystallinity, superior dielectric properties, and excellent optical transparency.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Multidisciplinary
Oksana Tananaiko, Alain Walcarius
Summary: Sol-gel-derived silica thin films have attracted great interest for their applications as platforms for electrochemical sensors and biosensors. This review summarizes the major advances made with composite silica-based films in electroanalysis, including non-ordered composite films, vertically oriented mesoporous membranes, sol-gel bioencapsulation, and spectroelectrochemical sensors.
Review
Materials Science, Multidisciplinary
Mouna Khiari, Mickael Gilliot, Michael Lejeune, Florica Lazar, Aomar Hadjadj
Summary: Thin ZnO films were synthesized using sol-gel and spin-coating methods, exhibiting nano-granular morphology with high grain orientation. The concentration of zinc salt, chelating agent, solvent nature, and substrate material were identified as crucial parameters affecting the microstructure and properties of the deposited layer. Thorough analysis revealed a three-step growth mechanism for these films, highlighting the importance of the liquid-substrate interaction during the initial steps of the synthesis process.
Article
Engineering, Electrical & Electronic
Zahra Damshekan, Iman Moghim, Mohammad Ebrahim Bahrololoom
Summary: In this study, the effect of saccharin addition on the average grain size of ITO nanocrystalline coatings was investigated. The surface morphology, optical properties, and electrical resistance of the coatings were characterized. It was found that saccharin could act as a grain-refining and pore-producing agent, leading to improved CO gas sensitivity of the ITO thin films.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Yin Fang, Yu Bai, Yi Zhuo Li, Ning Liu, Fan Zhang, Chao Wang, Zhan Jie Wang
Summary: Antiferroelectric PbZrO3 films crystallized by microwave radiation show improved energy storage performance compared to films crystallized by ordinary heating, with higher energy storage density and better stability and electric breakdown strength.
Article
Materials Science, Multidisciplinary
Yan-Fong Lin, Bo-Chang Dong, Su-Yu Liao, Bo-Rui Chen, Li-Zhen Lin, Yung-Yi Chang, Min-Hsin Wu, Po-Yu Su, Bo-Cheng Chen, Wen-Jeng Hsueh, Chun-Ying Huang
Summary: Activating metal oxide-based gas sensors using UV-LED is a promising approach to operating them at low temperatures. A remarkably sensitive and stable gas sensor based on solution-processed p-type copper aluminum oxide (CuAlO2) is presented in this report, which can sense O3 gas at room temperature and has improved sensitivity through UV radiation. CuAlO2 sensor exhibits outstanding stability, with a deterioration of only -10% over a period of 3 months, suggesting it as a promising material for gas sensing at room temperature.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Zohra Nazir Kayani, Ifra Sheri, Salma Waseem, Saira Riaz, Shahzad Naseem
Summary: Ba-doped TiO2 thin films were fabricated using the sol-gel dip-coated method. X-ray diffraction confirmed the formation of the anatase phase. With the increase of Ba doping, the size of the crystallite decreased. The bandgap of pure TiO2 and Ba-doped TiO2 thin films was in the range of 3.15-2.94 eV, which is beneficial for enhancing solar cell efficiency and water treatment. Ba-doped TiO2 thin films exhibited low dielectric constant suitable for high-frequency devices and showed ferromagnetism. The antibacterial activity of Ba-doped TiO2 was higher than that of pure TiO2, making it suitable for application in nanomedicine.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Chemistry, Multidisciplinary
Narges Kiomarsipour, Akbar Eshaghi, Mazaher Ramazani, Hossein Zabolian, Marzieh Abbasi-Firouzjah
Summary: A simple aqueous sol-gel procedure was used to produce hard transparent organic-inorganic coatings on polycarbonate (PC). The coatings were prepared by mixing Si and Al aqueous alkoxides and applied on plasma-treated PC. The coatings showed higher transmittance and good adhesion onto the substrates. The pencil hardness of the PC substrate improved significantly with just a single layer coating.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
O. F. Goktas, N. E. Koksal, O. Kaplan, A. Yildiz
Summary: The sol-gel method was used to fabricate Al-doped ZnO (AZO) thin films on p-Si substrates with smooth surfaces and highly oriented crystal structures. The analysis revealed that the AZO/Si heterojunctions exhibited nonideal diode behavior, with the 80 nm thick AZO layer demonstrating good rectifying properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Han Li, Yuhao Hu, Siyue Wei, Yingzhi Meng, Ningzhang Wang, Qi Zhang, Laijun Liu, Biaolin Peng
Summary: In this study, PbZr0.52Ti0.48O3 (PZT) ferroelectric thin films were successfully prepared by sol-gel method at an ultra-low temperature (-450 degrees C) in an oxygen plasma-assisted environment. The films exhibited a large spontaneous polarization of -30 mu C/cm2 and a large dielectric breakdown of 2,900 kV/cm. The oxygen plasma-assisted ultra-low temperature (OPAULT) annealing process shows promising potential for the application of sol-gel technology in modern COMS devices.
CERAMICS INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Zahra Asgharian, Akbar Eshaghi, Mazaher Ramazani, Narges Kiomarsipour
Summary: This study investigates the use of sol-gel-prepared GPTMS-Al2O3 nano-hybrid coatings to improve the hardness of polycarbonate. The results show that deposition of the nano-hybrid coatings increases the hardness of polycarbonate, as well as improving transmittance and reducing reflectance. The best performance is achieved with a GPTMS-Al2O3 ratio of 1:4.
Article
Materials Science, Ceramics
Khedidja Chehhat, Abla Mecif, Abedel Hakim Mahdjoub, Roshan Nazir, Manzoor Ahmad Pandit, Faiza Salhi, Abdelouahab Noua
Summary: In this study, high-quality ZnO thin films with different loadings of cobalt (Co) were prepared on porous ceramics substrates using a sol-gel dip-coating scheme. The impact of cobalt on the crystal phase, surface morphology, optical and chemical properties of the films was investigated. The results showed that the addition of cobalt led to a decrease in grain size and a reduction in band gap values of the films, resulting in improved performance in the removal of Orange II dye under UV radiation.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Prabhat Kumar Singh, Neetu Singh, Mridula Singh, Saurabh Kumar Singh, Poonam Tandon
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Astronomy & Astrophysics
Keshav Kumar Singh, Poonam Tandon, Alka Misra, Shivani, Manisha Yadav, Aftab Ahmad
Summary: The formation mechanism of n-PrCN and i-PrCN in the interstellar medium involves reactions between small cyanides/cyanide radicals and hydrocarbons/hydrocarbon radicals. These molecules are important precursors of amino acids and their abundance in ISM is related to the abundance of ethyl and vinyl cyanide. Reactions in the hot cores are efficient due to barrierless pathways, while reactions in dark clouds are inefficient due to impermeable entrance barriers. Additionally, reactions in the ice have smaller barriers compared to gas-phase reactions.
INTERNATIONAL JOURNAL OF ASTROBIOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Mridula Singh, Neetu Singh, Prabhat Kumar Singh, Saurabh Kumar Singh, Poonam Tandon
Summary: Nanostructured ZnO and Ru-doped ZnO were synthesized via sol-gel technique, while PANI/ZnO-Ru nanocomposite was synthesized via in-situ polymerization technique. Characterization techniques including XRD, FTIR, SEM and EDS were utilized to study the synthesized materials, revealing their average crystallite sizes and porous nature. Among them, PANI/ZnO-Ru nanocomposite showed the highest LPG sensitivity and excellent stability, with the shortest response and recovery times.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Rajesh Kumar, T. Karthick, Vinay Parol, Poonam Rawat, Poonam Tandon, Archana Gupta, A. N. Prabhu, V. Upadhyaya
Summary: In this study, a chalcone derivative 4-[(1E)-3-(4-methoxyphenyl)-3-oxoprop-1-en-1-yl] phenyl 4-methylbenzene-1-sulfonate (referred to as 4MPMS) was examined using spectroscopic experiments and quantum chemical methods to explore vibrational features, electronic transitions, and non-linear optical properties. The molecule's contributions to NLO activity, HOMO-LUMO energy gap, charge delocalization, and other quantum descriptors associated with chemical reactivity and NLO response were analyzed. Density functional theory with B3LYP/6-311(d,p) level of theoretical approximation was employed.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Spectroscopy
Manoj Kumar Chaudhary, T. Karthick, Bhawani Datt Joshi, Preeti Prajapati, Maria Silmara Alves de Santana, Alejandro Pedro Ayala, V. S. Jeba Reeda, Poonam Tandon
Summary: This study investigates the structural and vibrational features of cefradine, a first-generation cephalosporin antibiotic, using spectroscopic experiments and theoretical quantum chemical methods. Various analyses were performed to examine the molecule's properties, including chemical reactivity, stability, and nucleophilic/electrophilic regions. The study revealed that N8 atom is the most prominent site for nucleophilic attack in cefradine.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Manoj Kumar Chaudhary, Preeti Prajapati, Karnica Srivastava, Keilla Facanha Silva, Bhawani Datt Joshi, Poonam Tandon, Alejandro Pedro Ayala
Summary: The study presented the structural, spectroscopic, and physicochemical properties of ricobendazole (RBZ) using experimental and computational methods. Various analyses such as conformational analysis, reactivity demonstrations, and molecular docking were performed to understand RBZ's characteristics and potential binding sites.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
Prabhat Kumar Singh, Neetu Singh, Mridula Singh, Saurabh Kumar Singh, Poonam Tandon
Summary: MgO and 5% Zn-doped MgO nanoparticles were synthesized using the sol-gel method, and characterized using XRD, FTIR, SEM, and EDS techniques. The materials exhibited spherical morphology with surface pores suitable for gas sensing. The results suggest that 5% Zn-doped MgO nanoparticles could be an effective material for LPG sensing applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Priya Verma, Anubha Srivastava, Karnica Srivastava, Poonam Tandon, Manishkumar R. Shimpi
Summary: The pharmaceutical cocrystal of caffeine-citric acid has been studied to explore hydrogen bonding interactions and structure-reactivity-property relationship. Various analytical techniques were used to characterize the cocrystal, showing enhanced physicochemical properties compared to caffeine alone.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Physical
Moumita Das, Keshav Kumar Singh, Eram Khan, Rajeev K. Sinha, Ranjan K. Singh, Poonam Tandon, Debraj Gangopadhyay
Summary: This study investigates how N-Acetylcysteine (NAC) acts as an antitoxin of arsenic poisoning by forming a stable complex with arsenic, protecting biomolecules from toxic effects. Experimental and theoretical analyses suggest the formation of the complex occurs in three steps, highlighting the high affinity of NAC towards arsenic.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Eram Khan, Anuradha Shukla, Muhammad Asim S. Al-Hanafi, Poonam Tandon, Venu R. Vangala
Summary: This study provides unified insight into the vibrational spectroscopy and density functional theory calculations of a cocrystal of nitrofurantoin with phenazine, revealing the hydrogen bonding pattern and chemical reactivity. The cocrystal shows higher chemical reactivity compared to nitrofurantoin alone, with NF-PHEN being the most chemically reactive among three cocrystals.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Seema Shukla, Anubha Srivastava, Poonam Tandon, Joazaizulfazli Jamalis, R. B. Singh
Summary: The compound (E)-3-(5-methyl furan-2-yl)-1-phenyl prop-2-en-1-one (MFPPE) was studied using quantum chemical and vibrational spectroscopic analysis, confirming its structure and stability. Experimental and theoretical results showed good agreement, with UV-visible spectral analysis revealing electronic transitions.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
Manisha Yadav, Shivani, Aftab Ahamad, Keshav Kumar Singh, Rachana Singh, Alka Misra, Poonam Tandon
Summary: Recent studies show that solid-state reactions on icy dust grains are important for the formation of new species, including the hydrogenation of CN radical in interstellar ice analogs. Solid H-2 acts as a hydrogenation agent, reacting with CN radicals to form HCN.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Organic
T. Karthick, Keshav Kumar Singh, Swapnil Singh, Poonam Tandon, B. Narayana
Summary: This study investigated the isomeric forms of a biologically active cocrystal using spectroscopic measurements and density functional theory calculations. A new relatively stable form was identified, in addition to the existing isomeric form, through intrinsic reaction coordinate analysis. Non-covalent interactions within the isomeric forms were studied using quantum topological atoms in molecules analysis, and reactivity descriptors were predicted to validate the interactions and understand the charge distribution within the molecule.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Spectroscopy
Jaya Pandey, Preeti Prajapati, Poonam Tandon, Kirti Sinha, Alejandro Pedro Ayala, Javier Ellena
Summary: Estradiol 17β valerate (E2V) is a hormonal medicine widely used in hormone replacement therapy, exhibiting a reversible isosymmetric structural phase transition. The conformational difference of E2V induces changes in molecular torsional angles and hydrogen bond patterns, which can be further understood through density functional theory (DFT) calculations and vibrational spectroscopy to investigate the phase transition mechanism, and its inhibitive and agonist nature against estrogen receptor (ER) when docked.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Astronomy & Astrophysics
Keshav Kumar Singh, Poonam Tandon, Rajesh Kumar, Alka Misra, Shivani, Manisha Yadav, Aftab Ahmad, Manoj Kumar Chaudhary
Summary: Aminomethanol is an important precursor of interstellar glycine, and a two-step formation pathway has been proposed for its formation in interstellar ice. The study found that the proposed pathway is efficient in ice, with CH2NH identified as the starting reactant for aminomethanol.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
