Review
Chemistry, Physical
Magdalena Valentina Lungu
Summary: This article reviews the progress in developing ZnO-V2O5-based metal oxide varistors (MOVs) using powder metallurgy (PM) techniques. The aim is to create new, advanced ceramic materials for MOVs with comparable or superior functional properties to ZnO-Bi2O3 varistors using fewer dopants. The survey emphasizes the importance of a homogeneous microstructure and desirable varistor properties, such as high nonlinearity (a), low leakage current density (J(L)), high energy absorption capability, reduced power loss, and stability for reliable MOVs.
Article
Engineering, Chemical
Yu Yang, Samira Mandizadeh, Hao Zhang, Masoud Salavati-Niasari
Summary: Metal oxide-modified zeolite Y nanocomposites were synthesized and used for hydrodesulfurization, effectively reducing sulfur compound concentration to meet Euro-5 standard. ZnO-zeolite Y nanocomposites showed efficient removal of sulfur compounds under specific conditions, with high activity even after multiple recycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Engineering, Multidisciplinary
Teng Chen, Yi-wen Hu, Cai Zhang, Zhao-jian Gao
Summary: This review highlights strategies to enhance the thermal decomposition of ammonium perchlorate (AP) by tuning morphology, varying the types of metal ion, and coupling with carbon analogue. Enhanced catalytic performance can be attributed to synergistic effect, increased surface area, more exposed active sites, and accelerated electron transportation.
DEFENCE TECHNOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Shraddha Shukla, Himanshu Pandey, Prashansha Singh, Anish Kumar Tiwari, Vikas Baranwal, Avinash C. Pandey
Summary: Pharmaceutical waste management has emerged as a major environmental concern, with metal oxides being considered as potential tools for the treatment of organic pollutants. However, metal oxides have limitations such as faster recombination rate and lower ability for full usage of light, suggesting the need for doping with other materials to enhance their performance.
ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY
(2021)
Article
Chemistry, Multidisciplinary
Jiheon Kim, Wonjae Ko, Ji Mun Yoo, Vinod K. Paidi, Ho Yeon Jang, Michael Shepit, Jongmin Lee, Hogeun Chang, Hyeon Seok Lee, Jinwoung Jo, Byung Hyo Kim, Sung-Pyo Cho, Johan Lierop, Dokyoon Kim, Kug-Seung Lee, Seoin Back, Yung-Eun Sung, Taeghwan Hyeon
Summary: Multi-metal oxide (MMO) materials have potential in catalyst design. However, understanding the (electro)catalytic activity of MMOs is limited due to their complex multi-element nature. This study synthesized uniform-sized multi-metal spinel oxide nanoparticles and systematically studied the contributions of each element to enhance the electrocatalytic oxygen reduction reaction (ORR) activity.
ADVANCED MATERIALS
(2022)
Article
Electrochemistry
Kang Xu, Mengmeng Yan, Yu-Xin Chang, Xuanxuan Xing, Lianzheng Yu, Sailong Xu
Summary: Layered transition-metal oxides have been considered as potential high-performance cathode materials for sodium-ion batteries (SIBs). However, the undesirable side reactions at the cathode/electrolyte interface during cycling have limited their applications. In this study, a high-rate P2-Na2/3Ni1/3Mn2/3O2 cathode material for SIBs was developed by optimizing the surface coating using Al-doped ZnO (AZO). The optimized cathode material, coated with 1 wt% AZO at 500°C, exhibited good cycling and rate performances.
ELECTROCHIMICA ACTA
(2022)
Article
Green & Sustainable Science & Technology
Irum Shaheen, Khuram Shahzad Ahmad, Shaan Bibi Jaffri, Daoud Ali
Summary: This study reports the successful synthesis of MoO3@ZnO nanocomposites and characterizes their properties through various testing methods, showing their potential for application in solar cells and photovoltaic devices.
Article
Chemistry, Physical
Adriana-Gabriela Schiopu, Mihai Oproescu, Vasile Gabriel Iana, Catalin Marian Ducu, Sorin Georgian Moga, Denisa Stefania Vilcoci, Georgiana Cirstea, Valentin Marian Calinescu, Omar Ahmed
Summary: Nanotechnology offers opportunities for creating new features and functions in materials, making it one of the most important research topics in various fields. This paper introduces the fundamentals of nanotechnology and nanopowder production using solar energy, and reports on the synthesis and characterization of Ni-doped ZnO conducted in a French research laboratory.
Article
Chemistry, Physical
Franziska Hess, Bilge Yildiz
Summary: Perovskite oxides degrade at elevated temperatures while precipitating dopant-rich particles on the surface. A knowledge-based improvement of surface stability requires a fundamental and quantitative understanding of the dopant precipitation mechanism on these materials. Our study reveals that precipitation of dopants is influenced by various factors in different electrolytic and fuel cell conditions. Through the use of a model system and defect model, it is possible to predict and understand the mechanism of dopant precipitation.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Analytical
Kunal Mondal, Monsur Islam, Srujan Singh, Ashutosh Sharma
Summary: Carbon was used as a sacrificial template to produce zinc oxide (ZnO) porous nanostructures with a high specific surface area, which can have various applications including catalysis, photocatalysis, separation, sensing, solar energy harvest and energy storage.
Article
Chemistry, Physical
Nousheen Iqbal, Usman Ghani, Xingchen He, Yuanhao Lu, Wenyong Liao, Boyan Sun, Zhongping Wang, Tao Li
Summary: The development of highly flexible materials as electrodes in sodium-ion batteries shows great potential. Surface-engineered materials are needed to address electrode deterioration and limited ion and electron mobility. Metal and mixed metal decorated freestanding CNFs electrodes exhibit quick diffusion kinetics and significant Na+ storage capacity.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Kai Yang, Lixia Long, Yaning Feng, Yu Wei, Tianen Wu, Zhenguo Gao, Jiaoqiang Zhang
Summary: In this study, Ag/ZnO@C hybrid materials with metal-semiconductor heterostructures were synthesized using adjustable cation exchange. The electromagnetic response and absorption mechanism of the materials were systematically investigated. The results showed that the product exhibited low reflection loss and wide absorption bandwidth, providing guidance for the design of hybrid structural MAMs using phase transformation MOFs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ying Wang, Yuen Yan Chow, Cheuk Kai Gary Kwok, Yau Fung Leung, Kin Man Yu
Summary: This study systematically investigated the properties of CdO films doped with transition metal donors Mo and W. The results showed that Mo and W can enhance the electron mobility of CdO films, and the performance of the materials can be further improved by controlling the rapid thermal annealing temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Jia Liu, Fengjing Liu, Haining Liu, Junyi Yue, Jiyou Jin, Julienne Impundu, Hui Liu, Zhu Yang, Zhisheng Peng, Haonan Wei, Chao Jiang, Yong Jun Li, Liming Xie, Lianfeng Sun
Summary: The study presented the construction of a 1D-3D ZnO/CsPbBr3 p-n junction with superior rectification and photodetection performance. As a rectifier, it exhibited high rectification ratio and ambipolar transfer characteristics; as a photodetector, it covered light from ultraviolet to visible light with high photoelectric switching ratio and responsivity.
Article
Chemistry, Inorganic & Nuclear
Ayodeji Precious Ayanwale, Brenda Lizbeth Estrada-Capetillo, Simon Yobanny Reyes-Lopez
Summary: The study presented the synthesis of ZnO and ZrO2-ZnO nanoparticles and their structural characterization. The investigation revealed that high concentrations of ZnO showed inhibitory effect against Candida species in comparison to ZrO2. Furthermore, exposure to the synthesized nanoparticles did not show significant impact on the viability of peripheral human mononuclear cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
