Article
Chemistry, Physical
Xuelan Hou
Summary: This article discusses the clarity of the reported active area of anodic TiO2 nanotube (TNT) electrodes in photoelectric and electrochemical energy storage devices. In different applications, the sizes of the titanium metal substrate, anodic TNT, and electrode's active area are often misunderstood. Clarifying these three sizes is important for both academic research and commercialization.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Paolo Canepa, Giorgia Ghiara, Roberto Spotorno, Maurizio Canepa, Ornella Cavalleri
Summary: The growth of anodic oxide on niobium was investigated in a solution containing P and Ca-EDTA complexes. It was found that below the breakdown potential, thin and uniform oxide layers were formed, while above the breakdown potential, thicker and microporous oxide layers were observed with enrichment of Ca and P. An anodizing potential of around 200 V was identified as a good tradeoff between morphological and compositional properties and resistance to corrosion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xiaokang Yue, Ningsong Qu, Xin Ma, Hansong Li
Summary: The anodic electrochemical behaviors of titanium matrix composites in different electrolytes were investigated. The corrosion resistance is better in NaNO3 electrolyte due to the formation of a more stable passive film. The dissolved surface quality is better in NaCl electrolyte, but the current efficiency is lower.
Article
Chemistry, Multidisciplinary
Ab Mateen Tantray, M. A. Shah
Summary: This study successfully synthesized zinc oxide nanostructures using single-step electrochemical anodization process, resulting in ZnO nanoflowers with enhanced photo electrochemical ability. The morphological and structural characteristics of the material were thoroughly investigated, demonstrating potential for applications as photoelectrode materials driven by UV-visible sunlight.
Article
Materials Science, Multidisciplinary
Juan Liu, Ning Wang, Fuwei Zheng, Chuanxing Wang, Jing Wang, Baorong Hou, Qianyu Zhao, Yanli Ning, Yiteng Hu
Summary: This study demonstrates the modification of TiO2 nanotubes with CuInS2 quantum dots, which improves sunlight absorption efficiency and provides photoelectron cathodic protection to stainless steel. The CuInS2/TiO2 heterojunction effectively facilitates carrier separation and retains the redox capability of photo-induced electrons and holes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Karthickraja Ramakrishnan, V. Gayathri, K. Aravinthkumar, K. Ramachandran, B. Ajitha, M. Rameshbabu, S. Sasiflorence, S. Karazhanov, K. Praba, C. Raja Mohan
Summary: TiO2/CeO2 core/shell nanostructures were synthesized and characterized for their structural and optical properties. Among the synthesized nanostructures, TC0.1 exhibited the best photocatalytic and photo electrochemical performance, which can be attributed to its maximum flat band potential, resulting in excellent charge separation and transition.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiaowei Shi, Chao Dai, Xin Wang, Ping Yang, Lingxia Zheng, Zhefei Zhao, Huajun Zheng
Summary: Constructing a ternary hetero-junction on TiO2, TiO2/ZIS/ZCIS showed considerable enhancement in PEC performance, achieving higher photocurrent density and improved IPCE and ABPE compared to other structures. The appropriate band alignment and fewer interface defects in the ternary hetero-junction led to enhanced conductivity and efficient interface charge separation, as supported by various photo-electrochemical measurements.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Environmental
Chi Wang, Meng Sun, Yumeng Zhao, Mingxin Huo, Xianze Wang, Menachem Elimelech
Summary: The study introduces an autonomous photo-electrochemical osmotic system (PECOS) that can recover various metals from wastewater with solar energy while generating electricity. The system demonstrates the ability to reduce wastewater volume and recover valuable resources in a cost-effective and environmentally friendly manner.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Iva Betova, Martin Bojinov, Vasil Karastoyanov, Evelina Slavcheva
Summary: Mixed Mo-Ti oxides are successfully synthesized in nano-porous TiO2 templates by electrochemical deposition, and their properties are characterized. These films exhibit good photoelectrocatalytic activity for UV and visible light. The rate constants of charge transfer and recombination are quantitatively determined using IMPS measurements and correlated with a mechanistic model of oxygen evolution.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Environmental
D. Zabelin, A. Zabelina, E. Miliutina, A. Trelin, R. Elashnikov, D. Nazarov, M. Maximov, Y. Kalachyova, P. Sajdl, J. Lancok, M. Vondracek, V. Svorcik, O. Lyutakov
Summary: Titanium oxide is commonly used as an effective catalyst for photo-electrochemical water splitting, but its wide bandgap limits the utilization of visible and near-infrared light. The photosensitization of titanium oxide with plasmonic nanostructures has been proposed as a solution. In this work, a plasmon-based titanium oxide photosensitization method using a gold grating is presented. The gold grating supports the excitation and propagation of surface plasmon polariton wave, resulting in the activation of titanium oxide. Experimental results demonstrate that this structure enables efficient photo-electrochemical water splitting and hydrogen production under near-infrared light irradiation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Chao Yang, Yue Meng, Bo Xie, Shengjie Xia
Summary: The study systematically investigated the photon/matter interactions between soft X-rays and three selected polypeptides, revealing enhanced degradation in pre-solvated polypeptides due to the formation of photo-generated radicals. XPS analysis identified chemical changes in the polypeptides, with different degradation mechanisms observed in poly-Gly and poly-Arg. The critical role of amino acid interactions in the free-radical-generating living environment under irradiation was analyzed, highlighting the importance of sample preparation history in radiation-related chemical processes.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2021)
Article
Chemistry, Physical
Evrim Baran Aydin, Sevgi Ates, Gokmen Sigircik
Summary: In this study, CuO nanostructures were synthesized using chemical and electrochemical methods, and coated with TiO2. The morphological and structural properties of CuO and CuO-TiO2 materials were analyzed using FESEM and XRD. The electrochemical tests revealed that the electrochemically synthesized CuO-TiO2 material exhibited excellent electrocatalytic performance towards the hydrogen evolution reaction at -50 mA cm(-2) current density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Iva Betova, Martin Bojinov, Vasil Karastoyanov
Summary: Anodic oxides with thin bilayer structure were synthesized on austenitic stainless steel using different methods. The composition and electronic properties were characterized, and the oxides exhibited good photocatalytic activity.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Dongwei Ma, Jenny Schneider, Wan In Lee, Jia Hong Pan
Summary: Hydrous TiO2 colloidal spheres (HTCS) derived from the direct precipitation of titanium alkoxides have been of interest since 1982. With the development of structure-directing agents in the 21st century, it has become possible to synthesize highly uniform HTCS with reproducible and size-controllable properties, providing versatile platforms for advanced photo/electrochemical applications.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Davide Salusso, Canio Scarfiello, Anna Efimenko, Doan Pham Minh, Philippe Serp, Katerina Soulantica, Spyridon Zafeiratos
Summary: The metal-support interaction is crucial for the performance of catalysts, and understanding its evolution under reactive gas atmospheres is important for catalyst design. In this study, the in situ restructuring of cobalt particles supported on TiO2 and the impact of gas phase environment were investigated using X-ray photoemission spectroscopy.
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)