Article
Materials Science, Multidisciplinary
Qingyu Liu, Dengwang Li, Wei Tang
Summary: MoS2 nanoflowers modified with SnO2 quantum dots were prepared by hydrothermal method and used for ethanol detection. The composites were analyzed for morphology, structure, and composition. The results showed that SnO2 QD modified MoS2 had higher response, better selectivity, and lower operating temperature than SnO2 QD. The enhancement in ethanol sensing performance was attributed to large surface area and dangling bonds of MoS2 nanoflowers, as well as the formation of heterojunction between SnO2 and MoS2.
Article
Materials Science, Multidisciplinary
Xiaoli Xu, Wangwang Liu, Yan Chen, Shengyi Wang, Xiaoping Wang, Hongtao Jiang, Shuyi Ma, Fangqiang Yuan, Qianqian Zhang
Summary: In this study, a novel n-n heterogeneous MoS2/SnO2 nanotubes were prepared and utilized for triethylamine (TEA) sensing. The MoS2/SnO2 sensor showed excellent selectivity and high response to TEA, with a detection limit as low as 1 ppm. The sensing mechanism was found to be due to the synergistic effect of n-n type heterojunctions and unique tubular nanostructure.
Article
Chemistry, Physical
Lizhai Zhang, Chuangbei Ma, Jinniu Zhang, Yuhong Huang, Huiyan Xu, Hongbing Lu, Kewei Xu, Fei Ma
Summary: CeO2/MoS2 composites show a superior NO2-sensing response at room temperature, with high sensitivity, fast response, and excellent selectivity.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Joyce Joseph, N. Pradeep, V. S. Vadgama, P. S. Solanki, N. A. Shah, D. D. Pandya
Summary: This study investigated the humidity sensing properties of Fe doped SnO2 nanocoral (FSNC)-like structures achieved by hydrothermal synthesis. Different shapes of FSNC samples showed similar crystallite sizes and were tested for humidity sensing properties in a range of 20-80% relative humidity. Among the various shapes of FSNC, samples with rod-shaped tentacles exhibited the highest sensitivity.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Quan Zhou, Haodi Wu, Chao Wang, Shaohui Zhang, Long Zhang, Haifeng Zhang, Jiafan Chen, Gebo Pan
Summary: This study reports a novel preparation process of defect-rich MoS2 nanospheres through sonication-triggered morphological evolution, leading to the construction of an ultra-responsive humidity sensor. The defect-rich MoS2 nanospheres exhibit remarkably high response values, ultrafast response-recovery behaviors, and excellent repeatability, benefiting from surface defects and rapid charge transfer. The humidity sensing mechanism of the sensor was briefly discussed.
Article
Nanoscience & Nanotechnology
S. Blessi, A. Manikandan, S. Anand, M. Maria Lumina Sonia, V. Maria Vinosel, Abeer Mohamed Alosaimi, Anish Khan, Mahmoud Ali Hussein, Abdullah M. Asiri
Summary: This study demonstrates the capability of Al3+ ions as a dopant in mesoporous SnO2 nanopowders for humidity sensor and electrochemical applications. By controlling the concentration of Al3+ ions, the material shows excellent structural, morphological, optical, and electrochemical properties, with quick response and recovery time in humidity sensing applications.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
Jingting Luo, Chong Li, Qutong Yang, Lanxin Yan, Baohui Zhang, Ran Tao, Sana Rauf, Honglang Li, Chen Fu
Summary: In this study, MoS2 was modified with SnO2 as a NO2 receptor through mechanical composite. MoS2 nanoflowers with high surface/volume ratio were prepared using a hydrothermal method, and SnO2 was fabricated using a solvothermal method. The optimal parameters for gas sensor fabrication were systematically researched by investigating the mixing ratio and annealing temperature. The response was enhanced 1.5 times after modification, with fast response and recovery time. The p-n heterostructure also provided good selectivity towards NO2 for gas sensing. This work provides a facile alternative for fast and stable response NO2 gas sensor at room temperature.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Nguyen Ngoc Viet, Le Viet Thong, Tran Khoa Dang, Phan Hong Phuoc, Nguyen Hong Chien, Chu Manh Hung, Nguyen Duc Hoa, Nguyen Van Duy, Nguyen Van Toan, Nguyen Tang Son, Nguyen Van Hieu
Summary: Decoration of SnO2 nanofibers with MoS2 nanosheets enhances gas-sensing properties, leading to improved response and reduced operating temperature towards SO2 gas. The sensors also exhibit low detection limit and good selectivity for SO2 gas.
ANALYTICA CHIMICA ACTA
(2021)
Article
Engineering, Electrical & Electronic
Luheng Wang, Yang Yang
Summary: A planar coil made of SnO2 is designed to simultaneously measure humidity and non-contacting gap. The coil is humidity and gap sensitive due to the spiral structure of SnO2 inducing the eddy current effect. Humidity variation results in impedance and dc-resistance changes, while gap variation only induces impedance changes. The feasibility of using the SnO2 coil to measure humidity and gap is demonstrated through calibrating the variations of impedance and dc-resistance.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Junjun Wang, Yaonan Chen
Summary: Ag-doped SnO2 nanoflowers were prepared via a hydrothermal method and subsequent Ag-doping, and their structure and properties were studied. Compared to pure SnO2 sensors, Ag-doped SnO2 sensors showed higher response to methane and improved long-term stability and selectivity. The adsorption of oxygen molecules on the SnO2-based substrate was also investigated, revealing that Ag-doping enhanced adsorption stability and electron transfer, leading to improved sensitivity of gas sensors.
IEEE SENSORS JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Liang-Yan Guo, Sheng-Yuan Xia, Hao Sun, Yunfeng Long, Tianyan Jiang, Zhengyong Huang
Summary: This study used first-principles density functional theory to investigate the adsorption of specific gases on SnO2-MoS2 monolayer. The results show that CH4, C2H2, and NO2 have strong adsorption while other gases have relatively weak adsorption.
Article
Optics
Hongliang Chen, Xiaozhan Yang, Wenlin Feng
Summary: A novel fiber-optic Mach-Zehnder interferometer with different sensing films was proposed for detecting Cd2+, with the SnO2-MoS2 bilayer film showing the best response and excellent selectivity and stability.
Article
Energy & Fuels
Saravanan Rajendran, Lalitha Gnanasekaran, Tuan K. A. Hoang, D. E. Diaz-Droguett, F. Gracia, M. A. Gracia-Pinilla
Summary: This study synthesized a TiO2@SnO2 catalyst through the integration of sol-gel and thermal decomposition methods, which exhibited significantly enhanced hydrogen adsorption. The composite demonstrated a mesoporous nanostructure with hindered pores by SnO2. The oxidation states of TiO2 also played a crucial role in hydrogen adsorption.
Article
Materials Science, Multidisciplinary
Bogdan-Catalin Serban, Cornel Cobianu, Octavian Buiu, Marius Bumbac, Niculae Dumbravescu, Viorel Avramescu, Cristina Mihaela Nicolescu, Mihai Brezeanu, Cristiana Radulescu, Gabriel Craciun, Cosmin Romanitan, Florin Constantin Comanescu
Summary: This study presents a resistive humidity sensor for moisture detection at room temperature, utilizing a quaternary hybrid nanocomposite thin film as the critical sensing element. The performance of the sensor is analyzed in terms of sensitivity and linearity with varying ratios of the composite material. The impact of each component of the nanocomposites on the sensing performance is discussed, and alternative sensing mechanisms are taken into consideration.
Article
Chemistry, Physical
Mohini Panday, Gaurav K. Upadhyay, L. P. Purohit
Summary: Antimony-doped SnO2 thin films were prepared and tested as gas and humidity sensors. The results showed that the doping of antimony can significantly affect the optical and electrical properties of the films, leading to excellent sensing response at different temperatures and humidities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Honglin Li, Yuting Cui, Wanjun Li, Lijuan Ye, Lin Mu
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Physics, Multidisciplinary
Honglin Li, Yuting Cui, Mingyu Pi, Dongmei Li
Article
Materials Science, Multidisciplinary
Honglin Li, Chaozhong Guo, Yuanqiang Xiong, Ying Yang
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Physics, Condensed Matter
Honglin Li, Dongmei Li, Haijun Luo
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Honglin Li, Yuanqiang Xiong, Lijuan Ye, Hong Zhang, Shuren Zhou, Wanjun Li
Summary: Research on Van der Waals heterostructures focuses on assembly, interlayer coupling, and correlation effects to design novel structures with desirable properties for improved photoelectric conversion efficiency. Adjusting band structure through heterogeneous structures to enhance performance of optoelectronic devices or photocatalysts is proven feasible.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Physics, Multidisciplinary
Honglin Li, Hong Zhang, Yuanqiang Xiong, Lijuan Ye, Wanjun Li
Summary: This study investigates a new heterostructure form of SiC and BS with well-defined type-II alignment, showing high potential for efficient use of light. The results suggest that electric field and strain can regulate band alignment and effectively separate light-induced carriers in space.
Article
Materials Science, Multidisciplinary
Honglin Li, Yuanqiang Xiong, Hong Zhang, Lijuan Ye, Wanjun Li
Summary: Inspired by previous studies, this work explores the formation and properties of GaS-BSe heterostructures using density functional theory. The heterostructure exhibits good mobility and efficient light absorption under Type-II band alignment, which can be promoted by strain. This research provides a promising route for designing new vdW heterostructures based on III-VI monolayers and s-GaS.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Physics, Applied
Haowen Liu, Shuren Zhou, Hong Zhang, Lijuan Ye, Yuanqiang Xiong, Peng Yu, Wanjun Li, Xun Yang, Honglin Li, Chunyang Kong
Summary: In this study, a fully transparent metal-semiconductor-metal solar-blind photodetector with excellent performance was successfully constructed using amorphous Ga2O3 film and Al-doped ZnO transparent electrodes. The detector exhibits ultra-low dark current, high photo-to-dark current ratio, superb rejection ratio, large responsivity, superb detectivity, and fast response speed. It demonstrates ultra-high sensitivity to weak solar-blind signals and can be used for high-voltage corona discharge detection.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Environmental
Yuan Qin, Zihao Ou, Chuanlan Xu, Jianping Liu, Qi Lan, Rong Jin, Xinru Xu, Chaozhong Guo, Honglin Li, Yujun Si
Summary: This study presents a method to convert Mn-based MOF materials into highly active single Mn atoms catalysts. The catalyst exhibits superior catalytic activity and stability in oxygen reduction reaction, making it suitable for use in zinc-air batteries to improve power and energy density.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Bangjun Guo, Chenghao Liu, Yizhao Gao, Chong Zhu, Xi Zhang, Xiaole Ma, Fang Wang
Summary: A mesoscopic model for simulating the discharge voltage of a commercial LiFePO4-graphite battery was proposed in this study. The model considers the dynamical reaction in the positive region and divides the electrode solid phase into multiple units to calculate the potential using the Margules equation, resulting in a more accurate open-circuit potential. The charge reaction resistance is treated as an equivalent direct current resistance, and the model also accounts for the appearance and disappearance of the discharging platform during high C-rates discharge cycles.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Chuanlan Xu, Yujun Si, Bingbing Hu, Xinru Xu, Bihao Hu, Ying Jiang, Haifeng Chen, Chaozhong Guo, Honglin Li, Changguo Chen
Summary: This study presents a rational strategy to obtain anatomically dispersed Fe-N-4 catalysts by bonding iron phthalocyanine (FePc) on pre-synthesized Fe-N-C materials. The formation of Fe-O-Fe bridge bonds lowers the overpotential for the oxygen reduction reaction (ORR). The introduction of O atom stimulates the adsorption and activation of O2, resulting in improved ORR activity. The catalyst exhibits higher performance than commercial Pt/C catalyst.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Multidisciplinary Sciences
Honglin Li, Yuanqiang Xiong, Hong Zhang, Lijuan Ye, Wanjun Li
Summary: In recent years, two-dimensional transition metal sulfide materials have been widely studied for their unique properties and potential applications. This work introduces a new heterostructure form of MoS2-XS for optimizing properties, with a focus on suppressing carrier recombination. The research also shows potential applications in fields such as photovoltaic technology.
CHINESE SCIENCE BULLETIN-CHINESE
(2021)
Article
Chemistry, Physical
Honglin Li, Lijuan Ye, Yuanqiang Xiong, Hong Zhang, Shuren Zhou, Wanjun Li
Summary: Theoretical exploration in this study reveals that TMDC heterostructures with tunable band alignment have potential applications in photoelectronic devices and photocatalysts. The high flexibility and tunability of BSe-MoS2/WS2 heterostructures make them promising candidates for novel electronic devices and photocatalysts.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Wanjun Li, Honglin Li, Yuanqiang Xiong, Hong Zhang, Ying Yang, Lijuan Ye
Article
Physics, Applied
Honglin Li, Yuting Cui, Haijun Luo, Wanjun Li
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
(2020)
