Review
Engineering, Electrical & Electronic
Fika Fauzi, Aditya Rianjanu, Iman Santoso, Kuwat Triyana
Summary: Graphene and graphene-based materials have great potential in detecting gases and humidity due to their high specific surface areas. Recently, QCM sensors coated with graphene composites have been explored for their sensitivity and selectivity in detecting various gases and humidity. Challenges for future works include further development of QCM sensors using graphene materials or composites.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Multidisciplinary
Zhiheng Ma, Tongwei Yuan, Yu Fan, Yang Chen, Yueling Bai, Zhixuan Cheng, Jiaqiang Xu
Summary: The capture and separation of CO2 is crucial for addressing global warming. In this study, a new method using QCM was proposed to extract the CO2 adsorption enthalpy on MOFs, and its reliability and versatility were demonstrated through experiments.
Article
Nanoscience & Nanotechnology
Patrick Pires Conti, Paul Iacomi, Meilanie Nicolas, Guillaume Maurin, Sabine Devautour-Vinot
Summary: MIL-101(Cr) films were used as humidity sensors on quartz crystal microbalance and interdigitated electrode transductors. These devices exhibit high sensitivity, fast response/recovery times, good repeatability, long-term stability, favorable selectivity against toluene, and dual mode behavior in the optimal domain of humidity for indoor air.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Ke Wu, Yunlong Yu, Zhaonan Hou, Xin Guan, Hongran Zhao, Sen Liu, Xi Yang, Teng Fei, Tong Zhang
Summary: This study successfully prepared a humidity sensor based on ionic liquid modified metal organic frameworks, which exhibits linear response, minimal humidity hysteresis, and short response time to humidity change.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Zhiyan Ma, Teng Fei, Tong Zhang
Summary: Humidity is a physical quantity that measures the concentration of water vapor in the air. Humidity sensors are widely used in various fields due to their advantages of portability, easy fabrication, low cost, high sensitivity, and fast response. However, developing high-performance low humidity sensors still faces challenges due to the small amount of water molecules they can adsorb and the limitations of harsh environments. This paper reviews the research progress of low humidity sensors for nearly three decades, including the necessity of low humidity detection, measurement methods, and different types of sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Zhou Zheng, Guodong Zhang, Xiaomin Wang, Xu Kong
Summary: This paper presents a gravimetric humidity sensor based on a CMUT, which exhibits exceptional performance in terms of sensitivity, response speed, recovery time, and linearity. A comparative investigation with a QCM was conducted to better understand the characteristics and sensing mechanisms of these sensors. The CMUT humidity sensor demonstrated a high sensitivity, short response and recovery times, and excellent linearity, far superior to the QCM counterpart.
Article
Chemistry, Physical
Ke Wu, Xin Guan, Zhaonan Hou, Lichao Liu, Hongran Zhao, Sen Liu, Teng Fei, Tong Zhang
Summary: The research focused on the application of metal organic frameworks (MOFs) in sensors, specifically in the development of humidity sensors. By controlling the hydrophilicity of the sensing film, the optimized humidity sensor showed fast response to humidity changes with good stability and repeatability. The sensor was successfully applied in breath monitoring to differentiate between different breath states.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Qijie Chang, Daofu Wu, Yanyi Huang, Chengyao Liang, Libo Liu, Huanbin Liu, Yong He, Qiang Huang, Jing Qiu, Xiaosheng Tang
Summary: The lead-free K2CuBr3-based QCM humidity sensor exhibits excellent linear response and stability, making it a promising candidate for real-time breath monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Electrical & Electronic
Baohui Zhang, Zhiqiong Li, Chong Li, Min Li, Chen Fu, Ran Tao, Xian-hu Zha, Honglang Li, Jingting Luo
Summary: This paper demonstrates the fabrication of chemi-resistive and QCM ammonia sensors based on surface-engineered Ti3C2Tx MXene. The morphology and structure composition of Ti3C2Tx MXene were fully characterized using various techniques. The ammonia sensing performance of Ti3C2Tx MXene sensors at room temperature was systematically investigated. The results show that the QCM sensors outperform the chemi-resistor sensors in sensing ammonia. The Ti3C2Tx-S QCM sensor exhibits high sensitivity (49 Hz @ 100 ppb), fast response/recovery time (33 s/ 58 s), and good selectivity. XPS analysis reveals the potential ammonia adsorption mechanism, which involves the interaction between Ti-S and nitric oxides. This work confirms the effectiveness of surface engineering for enhancing gas sensing performance of Ti3C2Tx MXene and demonstrates the potential application of the sensor for low-concentration ammonia sensing.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Jun Cai, Luyu Wang, Yunling Wu
Summary: The metal-organic framework of UIO-66-SO3H, combined with a quartz crystal microbalance (QCM) sensing platform, can detect low concentrations of aniline vapor with good sensitivity, repeatability, stability, and selectivity. The sensor is capable of distinguishing aniline from interfering gases and maintaining response stability under varying levels of humidity.
Article
Chemistry, Analytical
Runlong Li, Yu Fan, Zhiheng Ma, Dan Zhang, Yiming Liu, Jiaqiang Xu
Summary: A 2D ultrathin MXene nanosheet was prepared and utilized as a sensitive film for constructing a humidity sensor with high sensitivity and stability. The enhanced humidity response mechanism of MXene nanosheets was explored through DFT calculations and experimental verification.
Article
Chemistry, Analytical
Heming Sun, Xiaonian Tang, Shuo Li, Ye Yao, Li Liu
Summary: One-dimensional hollow structure MOF-derived Ru/Mo co-doped Co3O4 hollow microtubes with excellent sensing performance were obtained through a simple solvothermal method. The 0.3% Ru/Mo-Co3O4 sample showed high responses to 126-100 ppm TEA at a low operating temperature of 160 degrees C, and displayed rapid response/recovery speed, good selectivity and repeatability, and excellent long-term stability. The construction of the 1D hollow architecture and the synergistic effect of Ru/Mo co-doping contributed to the good TEA sensing performance.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Nguyen Thanh Vinh, Tran Van Dang, Bui Thi Hang, Anh-Tuan Le, Nguyen Tri Tuan, Le Khanh Vinh, Nguyen Van Quy
Summary: This study synthesized three types of gamma-Fe2O3 nanoparticles using a facile chemical method, investigating the effect of different ferric ion concentrations on sensing properties. It was found that gamma-Fe2O3 nanoparticles synthesized with ferric ion [Fe3+] showed excellent sensing properties for detecting SO2 gas.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Electrical & Electronic
Zhiqiong Li, Baohui Zhang, Chen Fu, Ran Tao, Honglang Li, Jingting Luo
Summary: MXenes are attractive nanomaterials for humidity-sensitive materials due to their active sites, surface chemistry, and stability. Surface modification of Ti3C2Tx MXene through sulfurization enhances its humidity sensing performance, with the sulfurized MXene QCM sensor exhibiting high humidity sensitivity and ultrafast response and recovery time. It also shows a 20 times higher water absorption ratio compared to the as-synthesized MXene, indicating its potential for high-performance and fast humidity sensors.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Xiaohua Liu, Hong Wang, Xuefei Li, Di Liu, Jiawei Wan, Xiaoyong Lai, Shuaijun Hao, Qiang Zhang, Xingkuan Chen
Summary: In this study, a fern-like In2O3/ZnO nanocomposite with mesoporous structure was prepared from MIL-68/ZIF-8 via a simple template method. The composite exhibited excellent gas-sensing properties to TEA due to its unique structure features and n-n heterojunction.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Luyu Wang, Junkuo Gao, Jiaqiang Xu
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Chemistry, Inorganic & Nuclear
Luyu Wang, Hui Xu, Junkuo Gao, Juming Yao, Qichun Zhang
COORDINATION CHEMISTRY REVIEWS
(2019)
Article
Chemistry, Analytical
Zhiheng Ma, Tongwei Yuan, Yu Fan, Luyu Wang, Zhiming Duan, Wei Du, Dan Zhang, Jiaqiang Xu
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Inorganic & Nuclear
Luyu Wang, Jinguli Wen, Yuhang Wu, Junkuo Gao
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2020)
Article
Materials Science, Multidisciplinary
Luyu Wang, Jia Song
MATERIALS RESEARCH EXPRESS
(2020)
Article
Chemistry, Physical
Jia Song, Luyu Wang, Liang Zhang, Wenheng Wu, Zhibin Gao
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Physical
Jia Song, Luyu Wang, Liang Zhang, Kaiqi Wu, Wenheng Wu, Zhibin Gao
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Luyu Wang, Bing Wang, Yunling Wu, Jia Song
Summary: The study presents a selective chemical detection method for aniline vapor from benzene, toluene, ethylbenzene, and xylene (BTEX) using hydroxyapatite (HAP) nanorods nanobiomaterial. The HAP nanorods exhibit excellent sensitivity to aniline, with a detection limit of 5 ppb at room temperature. The stable sensing mechanism is attributed to the acid-base absorptive interaction between aniline molecule and the HAP structure.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Jia Song, Luyu Wang, Ding Fan, Liang Zhang, Wenheng Wu, Zhibin Gao
Summary: By studying the structural evolution and kinetic properties of Ti110Al14V4 alloy under different cooling rates, it was found that the system transitions from a melt to a body-centered cubic phase at about 1600 K for slow cooling, while for fast cooling, it forms a crystalline and amorphous mixture. The competition between icosahedron and face-centered cubic structures affects the alloy's glass-forming ability, especially due to the fragility of the liquid phase at high temperatures. This study also highlights the relationship between structure and dynamics in the alloy, showing that structural evolution is a key factor in determining the dynamics of the system.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Electrical & Electronic
Luyu Wang, Yunling Wu, Zeping Pan, Chunyang Yu
Summary: A new family of zirconium metal-organic frameworks (MOFs), UIO-66, with functionalized ligand was introduced for the selective monitoring of aniline. The research demonstrated the potential of ligand functionalization strategy in the field of challenging gas selective monitoring. However, enhancing the detection limit to ppb concentration level remains a challenge.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Luyu Wang, Yunling Wu, Chunyang Yu
Summary: This study reports a hydroxyl functionalized zirconium metal-organic framework (UIO-66(OH)(2)) for efficient selective aniline/BTEX detection. The results show that UIO-66-(OH) (2) exhibits significant differences in aniline/BTEX response and selectivity under ambient conditions, attributed to the hydrogen bond interaction between -OH and the -NH2 group of aniline, which enhances their selective adsorption.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Review
Engineering, Electrical & Electronic
Luyu Wang, Jia Song
Summary: This review provides an overview of commonly used gas sensing techniques for detecting aniline vapor and discusses the different sensing materials used. It concludes with an outlook for the future development of high-performance aniline sensors.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Luyu Wang, Bing Wang, Jia Song
Summary: Carboxylated cellulose aerogels were successfully synthesized via TEMPO-mediated oxidation, and were utilized for aniline vapor detection on a QCM platform. The carboxylated cellulose aerogel exhibited high response, good selectivity, satisfactory repeatability and stability, as well as rapid response.
Article
Engineering, Environmental
Luyu Wang, Yunling Wu, Gaojie Li, Hui Xu, Junkuo Gao, Qichun Zhang
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
