Article
Engineering, Electrical & Electronic
Chuang Shi, Xiaodong Wang, Yan Wang, Tielang Wang, Huimin Li, Guiyun Yi, Guang Sun, Zhanying Zhang
Summary: Macroporous SnO2 (M-SnO2) materials with high specific surface area were synthesized by template method, and Ag modified macroporous SnO2 (M-Ag/SnO2) gas sensing materials were prepared to enhance gas sensing performance. The outstanding sensing properties of M-Ag/SnO2 materials are attributed to their high specific surface area and catalytic activity, showing great potential for designing high performance ethanol sensors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Lili Jiang, Kang Xue, Zhaoyu Chen, Qi Cui, Su Xu
Summary: This study successfully synthesized ZnSnO3/rGO composite material and found that it exhibits excellent gas-sensing properties towards acetone, mainly attributed to its large specific surface area, hierarchical porous structure, and unique heterojunction.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Anas A. Ahmed, Z. H. Yamani
Summary: In this study, pure and SnO2 modified ZSM-5 zeolites were prepared using a hydrothermal method, with well-defined nanocrystalline structures and highly dispersed SnO2 nanoparticles. The SnO2 modified ZSM-5 zeolite showed chemiresistive sensitivity towards H-2 gas, with good performance and stability.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Vishal Singh, Arun Banotra, Saleem Khan, Ajay Singh, Seema Goutam
Summary: Metal oxide n-type SnO2 nanoparticles were synthesized via sol-gel method and p-type reduced graphene oxide (rGO) were loaded on SnO2 nanoparticles using sonication process. The composition of rGO affected the structure, morphology, composition, optical and electrical characteristics of SnO2/rGO nanocomposite. The formation of SnO2/rGO nanocomposite was confirmed through deviations in XRD, Raman and bandgap, and the electrical conductivity and heterojunction parameters were improved compared to pure SnO2, making it suitable for room temperature gas sensors.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Junliang Zhang, Shuyi Ma, Bingji Wang, Shitu Pei
Summary: The SnO2-CuO composite nanoparticles fabricated as an ethanol gas sensor exhibit excellent sensitivity and selectivity to ethanol, with short response recovery time and good linear relationship between response value and ethanol concentration, mainly due to the special heterostructure and synergistic effect between tin oxide and copper oxide.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Mohamed Morsy, A. G. Darwish, M. M. Mokhtar, Yahia Elbashar, Amir Elzwawy
Summary: A star-like rGO/SnO2/Co3O4 composite was synthesized and employed as a temperature sensor, showing a linear response within a wide range of temperature and humidity values.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Nitesh Dogra, Sandeep Sharma
Summary: In this study, a composite of MoSe2 and reduced graphene oxide (rGO) was successfully synthesized and used as a gas sensing platform for the detection of dimethylformamide (DMF) at room temperature. The structural analysis revealed the formation of MoSe2/rGO composite with the presence of MoO3 due to partial oxidation of MoSe2. Raman and XPS spectra confirmed the presence of 1T-MoSe2. The sensor showed sensitive and selective detection of DMF with a detection limit of 2 ppm and response (recovery) time of 130 s (50 s) and a relative response of 3.6%.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Swapnali B. Dhage, Vithoba L. Patil, Pramod S. Patil, Jungho Ryu, Deepak R. Patil, Yuvraj S. Malghe
Summary: CuO-SnO2 nanocomposites were successfully synthesized and studied for their potential as CO gas sensors. The thermal stability and gas sensitivity of the nanocomposites were confirmed, showing excellent repeatability and sensitivity towards CO gas. The XRD results indicated pure phase formation of CuO-SnO2 heterostructure with a band-gap of 2.63 eV.
Article
Chemistry, Physical
Wenqian Yan, Kunmeng Zhu, Yi Cui, Yanhan Li, Tao Dai, Sheng Cui, Xiaodong Shen
Summary: The new material of Ag-SnO2/rGO aerogel is prepared using the sol-gel method and freeze-drying technique, exhibiting excellent redox performance and high selectivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Sanjeewani R. Bansode, Mahendra A. More, Rishi B. Sharma
Summary: Zinc sulphide-reduced graphene oxide (ZnS-RGO) nanocomposite structures with varying sulphur content were synthesized by a simple solvothermal process. The nanocomposite structures were characterized and field emission measurements were carried out. The highest current density of approximately 1490 mu A cm^-2 was recorded from the nanocomposite at an applied field of 6.40 V mu m^-1.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Bodicherla Naresh, Kurugundla Gopi Krishna, D. Rajasekhar, Charan Kuchi, Sunil Kumar Kummara, P. Sreedhara Reddy
Summary: The fabrication of rGO-based MOS nanocomposites for room temperature gas sensing has become increasingly popular in recent years. In this study, 1-D rGO-NiO nanofibers were fabricated using electrospinning technique for the detection of NH3 gas at room temperature. The surface morphology, structure, composition, and optical properties of the rGO-NiO nanofibers were analyzed using SEM, XRD, BET, DRS, and XPS. The rGO-NiO sensor exhibited excellent response and recovery times of 32 s and 38 s, respectively, for a concentration of 50 ppm of ammonia gas at room temperature. The sensing performance was enhanced by the intrinsic charge transfer due to the synergistic effect of the heterostructure.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Nibagani Naresh, S. Jayasubramaniyan, Paramananda Jena, G. Kanimozhi, P. Muralidharan, N. Satyanarayana
Summary: The hybrid ultrathin NiMoO4 nanosheets/SnO2 nanospheres/rGO sheets nanocomposite prepared using a fast microwave-assisted hydrothermal method showed promising performance as an anode material for lithium-ion batteries, exhibiting high initial discharge capacity and excellent rate capability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Analytical
Selva Bilge, Burcu Dogan-Topal, Abdullah Yucel, Ali Sinag, Sibel A. Ozkan
Summary: With the rapid development of the industry, studies on environmental pollution, health, and safety are increasing. Gas sensors, with their promising characteristics of low cost, sensitivity, and portability, play a critical role in environmental monitoring, personal safety, and supervision of toxic gases. Flower-like metal oxide nanostructures, such as ZnO, SnO2, and In2O3, have been intensively studied to improve the sensing performances of gas sensors due to their increased surface area and material selectivity to gas molecules. Hydrothermal and sol-gel methods are the most preferred synthesis techniques for these nanostructures.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Lanpeng Guo, Hongping Liang, Dongmin An, Huimin Yang
Summary: Noble metal doping, such as silver (Ag), is an efficient way to improve the sensing performance of metal oxide semiconductor nanomaterials. In this study, uniform Ag-doped SnO2 nanoparticles with a diameter of less than 10 nm were successfully synthesized. Compared to pure SnO2-based sensors, the Ag/SnO2-based sensors showed enhanced sensitivity and selectivity towards ethanol, especially the 6% Ag/SnO2-based sensor with a high response (Ra/Rg = 135) to 50 ppm ethanol at 180 degrees C. These results suggest that Ag-doped SnO2 nanoparticles have potential application for ethanol sensors.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Engineering, Electrical & Electronic
Yanghai Gui, Jintao Wu, Kuan Tian, Huishi Guo, Xiaoyun Qin, Xiaomei Qin, Xiang Guo, Canxiang Fang, Peng Liu
Summary: In this study, Ag/WO3/reduced graphene oxide (rGO) nanocomposites were synthesized successfully and exhibited remarkable selectivity towards H2S. The gas sensing performance of Ag-doped WO3/rGO sensors was significantly better than that of WO3/rGO, and the performance was further enhanced under ultraviolet (UV) irradiation. This study offers a potential application for H2S detection in environmental monitoring and smart healthcare.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
