Article
Materials Science, Multidisciplinary
Fei Li, Qian Lv, Lun Gao, Xing Zhong, Jing Zhou, Xiaoxin Gao
Summary: Ag-LaFeO3, prepared by chemical reduction method, demonstrates excellent gas-sensing properties towards ethanol, with a higher gas response compared to LaFeO3 sensor, and short response and recovery times.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Kuibo Lan, Shuaiyan Liu, Zhi Wang, Junqing Wei, Guoxuan Qin
Summary: In this study, a high-performance TMA sensor was developed using a pyramid substrate structure and olfactory receptor-derived peptides (ORPs) chemically connected to single-walled carbon nanotubes (SWCNTs). The sensor was capable of detecting gaseous TMA with a concentration as low as 0.01 ppt, and showed significantly improved responsivity compared to sensors on flat substrates. Selectivity and repeatability measurements confirmed the excellent sensitivity and stability of the sensor for TMA detection. The potential applications of these TMA sensors include food safety, diseases monitoring, and environmental protection.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Chethana Aranthady, Teena Jangid, Kapil Gupta, Abhishek Kumar Mishra, S. D. Kaushik, V Siruguri, G. Mohan Rao, Ganapati Shanbhag, Nalini G. Sundaram
Summary: A comparative study was conducted on La1-xCaxFeO3 and La0.6Ca0.4FeO3 materials, showing that La0.6Ca0.4FeO3 thin films exhibit better sensitivity and performance for low concentration SO2 gas. High-resolution transmission electron microscope images and X-ray photoelectron spectroscopy analysis confirmed the nanoparticle nature of La1-xCaxFeO3 samples and the presence of oxygen vacancies.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Jiejie Yu, Cong Wang, Quan Yuan, Xin Yu, Ding Wang, Yang Chen
Summary: In this study, Ag in situ modified porous LaFeO3 nanosheets were synthesized for ethanol detection. The nanosheets exhibited fast response/recovery times and high selectivity, attributed to their unique crystal structure and physical-chemical properties.
Article
Chemistry, Physical
Xiao-Feng Wang, Ningning Liu, Hongjian Liang, Hong Wu, Zhengliang Wan, Yulan Meng, Zhenquan Tan, Xue-Zhi Song
Summary: Metal-organic frameworks (MOFs) have been successfully used as sacrificial templates for the fabrication of porous metallic oxides. However, their application in preparing rare earth perovskite-type oxides is limited. In this study, a sol-gel method was used to construct uniform La/Fe MOFs, which were completed in a few seconds at room temperature. The resulting LaFeO3/La2O3, LaFeO3, and LaFeO3/Fe2O3 exhibited porous structures, with LaFeO3 having the largest specific surface area of 18.16 m2/g. Additionally, the LaFeO3-based sensor showed an ultra-high response of 258.4 to 100 ppm n-propanol, while the LaFeO3/La2O3-based sensor had a detection limit of 0.16 ppm at a low working temperature of 100 degrees Celsius. This work provides a facile and adjustable approach to design perovskite metal oxides for the ultra-sensitive detection of various gases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Zhangcheng Xia, Cong Zheng, Jingjie Hu, Qiming Yuan, Cheng Zhang, Jian Zhang, Lifang He, Hongliang Gao, Ling Jin, Xiangfeng Chu, Fanli Meng
Summary: In this study, SnO2 quantum dots (QDs) were used to dope and sensitize LaFeO3, improving its sensing properties towards formic acid (HCOOH) gas. Porous LaFeO3 was achieved by doping SnO2 QDs, enhancing the diffusion of gas molecules. The sensitivity of LaFeO3 to HCOOH was significantly improved by SnO2 QDs doping, and a sensor based on LaFeO3 doped with 2.5 wt% SnO2 QDs exhibited excellent sensing performance with a high response value of 31.5-100 ppm HCOOH and a low detection limit of 1 ppm at 210 degrees C. The formation of heterojunctions between SnO2 QDs and LaFeO3, as well as the small size of SnO2 QDs, contributed to the enhanced sensing properties. This work highlights the advantages of QDs sensitization in semiconductor gas sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Zhuangzhuang Ma, Kai Yang, Changlin Xiao, Lichao Jia
Summary: Porous LaFeO3/C nanocomposites were successfully synthesized for the first time through a facile foaming sol-gel technique, demonstrating excellent sensing properties with high sensitivity and selectivity to formaldehyde. This work provides an efficient and simple example for the fabrication of high sensing performance formaldehyde sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Changlin Xiao, Xiuhai Zhang, Zhuangzhuang Ma, Kai Yang, Xiaotong Gao, Hongqiang Wang, Lichao Jia
Summary: The real-time detection of formaldehyde is crucial for environmental pollution monitoring and healthcare. In this study, indium-doped LaFeO3 porous structure was synthesized to enhance the sensing capability. The results showed that the response value of the material towards 100 ppm formaldehyde at the optimal temperature of 125 degrees C was 122, which was twice the value of the pristine material. Importantly, the sensor demonstrated a distinct response even at a concentration as low as 1 ppb, which is the lowest detection limit reported so far. The improved sensing performance was attributed to the increased surface area, abundant oxygen vacancies, and reduced surface adsorption energy. These findings suggest that indium-doped LaFeO3 is a promising material for practical formaldehyde sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Multidisciplinary
Kai-Di Wu, Jin-Yong Xu, Marc Debliquy, Chao Zhang
Summary: CuFe2O4 HMANs were synthesized with nanosheets assembled in hollow microspheres, and the annealing temperature significantly influenced their gas sensing characteristics. The CuFe2O4 HMANs exhibited excellent sensing properties towards low-concentration NH3 and TMA, showing promising potential for real-time monitoring applications.
Article
Chemistry, Physical
Wenhao Wang, Lu Zhang, Zhisong Liu, Yanli Kang, Qiang Chen, Wei Wang, Minmin Liu, Bang-Ce Ye, Feng Yu, Yingchun Li
Summary: In this study, a TiO2-NiFe2O4 heterojunction was synthesized for trimethylamine (TMA) detection. The sensor exhibited a significant response to TMA at high temperature, and the response was further enhanced under white-light irradiation. The researchers explored the enhanced gas-sensing performance of the sensor using density functional theory. This study improves the gas-sensing ability for TMA detection and has potential applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Food Science & Technology
Yahui Li, Yanxiao Li, Jiyong Shi, Zhihua Li, Xin Wang, Xuetao Hu, Yunyun Gong, Xiaobo Zou
Summary: A novel gas sensor based on silk fibroin fibers (SFFs) was proposed for detecting the freshness of pork. The sensor, fabricated through polymerization of polyaniline (PANI) and silver nanowires (AgNWs) on SFFs, showed great potential for applications in detecting the freshness of pork by measuring the total volatile basic nitrogen (TVB-N) index.
Article
Engineering, Electrical & Electronic
Wenbo Qin, Renze Zhang, Zhenyu Yuan, Chaoyang Xing, Fanli Meng
Summary: In this study, LaFeO3/Fe2O3 composites were synthesized by a hydrothermal method for the detection of acetone gas. The composite material showed superior gas sensing properties compared to pure LaFeO3, with a response almost five times higher. It also exhibited a low limit of detection, good long-term stability, and selectivity.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Electrical & Electronic
Fei Li, Shuaipeng Wang, Zhentao Wu, Xiaobo Xiong, Jiangchun Li, Jing Zhou, Xiaoxin Gao
Summary: Au-LaFeO3 nanocomposites were synthesized by a simple wet chemical method, showing excellent gas sensing properties to ethanol with a sensitivity of 44 to 100 ppm ethanol gas, which is 27 times higher than that of LaFeO3 sensor. Au functionalization immensely improved the gas-sensing abilities of LaFeO3 nanowires.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Xuhan Li, Ling Jin, Anqi Ni, Liqiang Zhang, Lifang He, Hong Gao, Peng Lin, Kui Zhang, Xiangfeng Chu, Suhua Wang
Summary: In this study, a low temperature TMA gas sensor with antifreezing and superior mechanical properties was developed using Au nanoparticle-modified MXene. The MXene@Au hydrogel exhibited excellent antifreezing performance and mechanical properties. The flexible MXene@Au DN hydrogel sensor showed linear relationship between TMA sensitivity and concentration even under deformation, making it suitable for dynamic quality monitoring and prediction of marine fish products in the cold chain.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Xiaojie Zhu, Xueting Chang, Sikai Tang, Xiaoqiu Chen, Weixiang Gao, Shicong Niu, Junfeng Li, Yingchang Jiang, Shibin Sun
Summary: This study successfully addresses the trade-off between gas-sensing performance and anti-humidity ability of chemiresistive gas sensors by preparing hydrophobic inorganic CeO2/SnO2 heterostructure films. The sensors based on these films demonstrate excellent gas-sensing performance towards TEA and promising anti-humidity ability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)