Article
Materials Science, Multidisciplinary
A. M. Raba-Paez, I. M. Saavedra Gaona, J. O. D. Malafatti, C. A. Parra Vargas, A. J. Chiquito, E. C. Paris, M. R. Joya
Summary: Cu1-xWxO nanostructures with different doping levels (x = 0.0, 0.01, 0.02, and 0.04) were characterized and their magnetic properties were analyzed. The presence of a minor WO3 secondary phase was observed in the x = 0.02 sample, and this secondary phase became necessary to include in the refinement for higher doping levels. Changes in IR bands were attributed to lattice variations and crystal defects. XPS confirmed the presence of W6+ in the W-doped CuO. The ferromagnetic response increased for the x = 0.01 sample, but decreased with increasing tungsten concentration until 4%. The remarkable magnetic characteristics of the x = 0.02 material were not explained solely by the presence of WO3 secondary phase.
MATERIALS CHARACTERIZATION
(2023)
Article
Crystallography
Reina Galeazzi Isasmendi, Isidro Juvenal Gonzalez Panzo, Crisoforo Morales-Ruiz, Roman Romano Trujillo, Enrique Rosendo, Ivan Garcia, Antonio Coyopol, Godofredo Garcia-Salgado, Rutilo Silva-Gonzalez, Ivan Oliva Arias, Carolina Tabasco Novelo
Summary: The study involved depositing Copper oxide (CuO) films on glass substrates using microwave assisted chemical bath deposition method with varying pH values. The experiments showed that the CuO films obtained had monoclinic crystalline phase, nanostructured surface morphology, stoichiometric Cu/O ratio of 50/50 at%, and a band-gap energy value of 1.2 eV.
Article
Materials Science, Multidisciplinary
Weiwei Guo, Yuting Shuai, Mengmeng Xu, Siwei Wu, Rong Peng, Xingmin Wang
Summary: Flower-shaped bismuth vanadate (BiVO4) microspheres were prepared by a simple hydrothermal technique, and their crystalline phase, surface chemical components, and morphology were characterized using XRD, SEM, BET, and XPS. The gas sensor based on BiVO4 exhibited a high gas response (17.2), good repeatability, and a quick response-recovery time (24 s/44 s) to acetone at 370 ??.
Article
Materials Science, Multidisciplinary
Xinran Li, Xue Gao, Weili Lu, Hassan Fouad, Abdel-Hamid Mourad, M. Shaheer Akhtar, Weiwei Guo
Summary: In this study, CoSnO3 nanocubes with p-type semiconductor feature were successfully synthesized via a hydrothermal method, and characterized by various techniques. The results showed that the material exhibited excellent gas sensing performance to ethanol, making it a promising gas sensing material for ethanol detection.
Article
Materials Science, Multidisciplinary
Linjie Jian, Rong Peng, Youzhou He, Xingmin Wang, Weiwei Guo
Summary: In this study, urchin-like WO3 was successfully synthesized using a one-step hydrothermal method. The crystal structure, chemical composition, morphology, specific surface area, and gas sensing properties of WO3 were evaluated using various instruments. The results showed that the urchin-like WO3 gas sensor exhibited high response, selectivity, repeatability, and stability towards 30 ppm ammonia, indicating its potential as a candidate material for ammonia monitoring.
Article
Materials Science, Multidisciplinary
Yongguang Wang, Longchao Yao, Linjie Xu, Weihong Wu, Wenhao Lin, Chenghang Zheng, Yuanqun Feng, Xiang Gao
Summary: Hierarchical WO3 hollow microspheres were successfully synthesized and applied in gas sensors, showing high sensitivity, selectivity, repeatability, and response/recovery characteristics towards NO gas, mainly due to their unique structure with high specific surface area and effective gas diffusion ability.
Review
Chemistry, Multidisciplinary
Vincentas Maciulis, Almira Ramanaviciene, Ieva Plikusiene
Summary: Nanostructured materials formed from metal oxides offer advantages such as large surface area, improved physical properties, and adjustable electronic properties. This review discusses various types of metal oxide nanostructures classified based on size and composition and their application in chemical sensors and biosensors. The synthesis methods of metal oxide nanostructures and their integration in sensor design are also analyzed in detail.
Article
Materials Science, Ceramics
B. Ranjithkumar, H. B. Ramalingam, E. Ranjith Kumar, Ch Srinivas, G. Magesh, C. Sharmila Rahale, Nashwa M. El-Metwaly, B. Chandar Shekar
Summary: In this study, a novel green synthesis method using honey and cow urine was employed to prepare zinc oxide nanoparticles, and various properties of the nanoparticles were analyzed. The results showed that zinc oxide nanoparticles assisted by honey demonstrated strong antibacterial activity compared to those prepared with cow urine.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Multidisciplinary
Sayali Ashok Patil, Pallavi Bhaktapralhad Jagdale, Ashish Singh, Ravindra Vikram Singh, Ziyauddin Khan, Akshaya Kumar Samal, Manav Saxena
Summary: This review focuses on the design, synthesis, and potential applications of 2D ZnO nanosheets. ZnO 2D nanosheets have unique properties, such as direct bandgap and strong excitonic binding energy at room temperature, making them widely used in various fields including piezotronics, energy storage, photodetectors, light-emitting diodes, solar cells, gas sensors, and photocatalysis. The review discusses synthetic strategies, reaction mechanisms, and the future prospects of ZnO nanosheets.
Article
Materials Science, Multidisciplinary
H. Khaleghi, M. H. Ehsani
Summary: This work investigated the structural, magnetic, and optical properties of pure CuO and double-substitution by Fe and Mn ions prepared by the hydrothermal method. Various techniques were used to study the structural and morphological properties. The results showed that the samples exhibited a polycrystalline monoclinic and nanosheet structure. The optical bandgap of the samples was obtained using UV-vis analysis. Vibrating-sample magnetometry revealed paramagnetic behavior in pure CuO and weak ferromagnetic behavior in the other samples.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jessica A. A. Oliveira, Roberta R. M. A. Silva, Gelson T. S. T. da Silva, Juliana A. Torres, Abbas Vali, Caue Ribeiro, Krishnan Rajeshwar, Luis A. M. Ruotolo
Summary: This study addresses a literature gap in the emerging photoelectrode materials for solar fuels generation, and successfully synthesizes two copper vanadates through an optimized synthesis route. Further evaluation is needed to conclude.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Raill Mendoza Baez, A. Marco Morales, Adan Luna Flores, Ricardo Agustin Serrano
Summary: In this study, the synthesis of zinc oxide nanoparticles (ZnONPs) was investigated using a multiscale modeling approach based on a three-stage reaction mechanism via the hydrothermal method. The reactivity of chemical compounds in the reaction mechanism was evaluated using Density Functional Theory (DFT) with the B3LYP/6-311+G method. Computational simulations and numerical solutions were employed to replicate the three-dimensional morphologies of ZnONPs, such as rods, spheres, octahedra, and others, reported experimentally.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yanjie He, Yachao Liang, Shuang Liang, Yeu-Wei Harn, Zili Li, Mingyue Zhang, Dingfeng Shen, Zhiwei Li, Yan Yan, Xinchang Pang, Zhiqun Lin
Summary: A robust amphiphilic-diblock-copolymer-enabled strategy has been developed for crafting highly-stable anisotropic CsPbBr3 nanosheets. These dual-protected nanosheets exhibit remarkable stabilities and find application in white-light-emitting diodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Jiaqi Dong, Chuxuan Yan, Yingzhi Chen, Wenjie Zhou, Yu Peng, Yue Zhang, Lu-Ning Wang, Zheng-Hong Huang
Summary: Organic semiconductor nanostructures play an important role in enhancing photocatalytic activity and stability. By assembling nanostructures or nanocomposites, the optoelectronic properties and photocatalytic efficiency of organic semiconductors can be improved. Nanoparticles of different dimensions (0D, 1D, 2D) have distinct advantages, and the construction of heterogeneous interfaces facilitates charge separation. Organic semiconductor nanostructures are widely used in photocatalytic water splitting, CO2 reduction, pollutant decomposition, disinfection, and other applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyun Li, Xiaohan Zhai, Yan Zhang, Miaorong Zhang, Jianguo Tang
Summary: In this study, a novel mild etchant, taurine aqueous solution, was successfully used for photoelectrochemical etching of GaN. The pore shape of etched GaN can be regulated by controlling the etching time. The etching process does not affect the crystal integration and stress property of GaN, and the etched GaN exhibits larger photocurrents compared to as-grown planar GaN, indicating its potential for photoelectric fields.
Article
Chemistry, Multidisciplinary
Alaauldeen A. Duhduh, Chou-Yi Hsu, Mustafa Humam Sami, Anupam Yadav, Russul Thabit, Sagr Alamri, Abdelmajeed Adam Lagum, Ali A. Rajhi
Summary: Density functional theory (DFT) calculations were used to investigate the application of a Zn12O12 nanocage as an anode material in Na-ion batteries (NIBs). The pure nanocage showed low performance, but encapsulating a chloride led to a significant increase in voltage, surpassing carbon nanotubes and C24 fullerene.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Hiroyuki Ikemoto, Toshihiko Fujimori, Takafumi Miyanaga, Reo Kawaguchi, Koki Urita, Masao Tabuchi
Summary: This study investigated the structures of two Se chains confined inside single-walled carbon nanotubes (SWCNTs), revealing that the chains were linear and parallel. The covalent bond between Se and SWCNT was found to be stronger than that between Se and trigonal Se (t-Se). The interaction between chains was attributed to the overlap of electronic orbitals, and the disappearance of this overlap in the encapsulated Se chains enhanced the covalent bonds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Suman Yadav, Atul Gour, Sadhna Singh
Summary: In this study, we investigated the electronic and thermoelectric properties of rare-earth half-Heusler XPtBi (X = Gd, Nd, Y) topological semimetals compounds using density functional theory. Our results indicate that the inclusion of spin orbit coupling has a significant impact on the electronic band structure and spin order, making it promising for spintronic applications. We found different topological states in these compounds and observed enhanced power factor in YPtBi with the inclusion of SOC.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
Summary: In this study, we elucidate the hopping mechanism of hydrogen at intermediate temperature using a combination of experimental data and theoretical calculations. We find that the transition from thermal hopping to quantum tunneling is attributed to resonant tunneling, which is achieved through the resonant tunneling of discrete vibrational states between the edge octahedral site and the tetrahedral site. We also demonstrate that the tunneling rate can be tuned by energy level matching.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ankita Nandi, Ritam Mehera, Moumita Mandal, Paramesh Chandra, Swapan K. Mandal, Naznin Ara Begum, Chandan K. Jana, Nilanjana Das
Summary: In this study, stable biogenic ZnO nanoparticles were successfully synthesized using a biosynthesis method, and their effects on oxidative stress parameters in Saccharomyces cerevisiae were investigated. The results demonstrate that high concentrations of ZnO nanoparticles may induce oxidative stress conditions, suggesting caution in their extensive use.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
P. S. Dighe, A. A. Bhoite, V. L. Patil, N. L. Tarwal, P. B. Sarawade
Summary: In this study, Ni-Co layered double hydroxide (LDH) nanocomposites with excellent electrochemical properties were prepared using hydrothermal technique. The as-obtained material exhibited high specific capacitance and remarkable energy density, showing great potential for supercapacitor applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Abrar U. Hassan, Yuchuan Li
Summary: This study presents a new design strategy of N-doped fused ring electron acceptors for organic dye Y123 in photovoltaic and optical devices. The evaluation of five novel dyes shows their positive contributions to charge transfer. Impressive photovoltaic performance is observed in one of the dyes, with high light harvesting efficiency and maximum power output.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ashvin Kanzariya, Shardul Vadalkar, Sourav Kanti Jana, L. K. Saini, Prafulla K. Jha
Summary: Graphene quantum dots (GQDs) with quantum confinement and size effects show great potential for sensing applications. This computational study investigates the adsorption performance of pristine and transition metal-doped coronene GQDs to hazardous gases. The results suggest that doping with chromium (Cr) or nickel (Ni) enhances the gas adsorption performance, with Cr-doped GQDs showing strong interaction with gas molecules and potential as a gas remover, and Ni-doped GQDs showing potential as a CNCl sensor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Vladimir V. Poborchii, Victor A. Sachkov, Alexander A. Shklyaev, Alexander V. Fokin, Pavel I. Geshev
Summary: This study investigates the polarized optical absorption and Raman spectra of -5 nm diameter tellurium nanowires confined in chrysotile asbestos nanotubes. The results show a strong interaction between the nanowires and light polarized parallel to the nanowires, while a weaker interaction is observed for light polarized perpendicular to the nanowires. This has significant implications for photonic and photo-electric applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Stanislav Cichon, Frantisek Maca, Vaclav Drchal, Katerina Horakova, Irena Kratochvilova, Jan Lancok, Vladimir Chab, Patrik Cermak, Jiri Navratil, Cestmir Drasar
Summary: In this study, a reliable method for preparing high-quality single crystal substrates doped with Bi2Se3 was developed. The electronic properties and chemical states of atoms in the substitutional position and native defects in the topological insulator were analyzed using experimental and theoretical methods. The relationship between the position of the Dirac cone and valence band maximum was explored and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ikkurthi Kanaka Durga, Dasha Kumar Kulurumotlakatla, Tholkappiyan Ramachandran, Yedluri Anil Kumar, D. Amaranatha Reddy, K. V. G. Raghavendra, Asma A. Alothman, Sunkara Srinivasa Rao
Summary: Nickel molybdate oxide and tungsten trioxide have potential as electrode materials for supercapacitors, but their poor conductivity and fast capacitance fading limit their performance. By building a hierarchical nanoflower structure, the electrochemical performance of the supercapacitor is enhanced.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Elnaz Saadinia, Mohammad Almasi Kashi, Amir H. Montazer
Summary: Fe-based nanowires containing nonmagnetic elements, fabricated using a pulse electrodeposition method in porous anodic alumina membranes, exhibit magnetic tunability. The magnetic properties of Fe100-xSnx NW arrays, with a diameter of about 35 nm, such as coercivity and squareness values, decrease with increasing Sn content. The structure of the FeSn NWs, dominated by Fe or FeSn alloy crystal phase, can be either single domain or pseudo-single domain states depending on the Sn content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Xinkai Liu, Tingting Liu, Yuanliang Zhou, Jing Wen, Jinmei Dong, Chenggong Chang, Weixin Zheng
Summary: CuS-Mg/S-BC composites modified by one-pot sulfurization exhibited higher removal efficiency in adsorption and photocatalytic removal of dyes, thanks to the functional groups and vacant sites formed at the interface for enhanced adsorption and photon capture.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Yixing Hao, Fang Zhu, Hao Cheng, Sridhar Komarneni, Jianfeng Ma
Summary: A magnetic porous composite catalyst synthesized from CoFe2O4 and CuS showed high degradation efficiency for organic pollutants under visible light conditions, using non-radical degradation as the main pathway.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)