Article
Chemistry, Analytical
Jinyong Hu, Xiqi Chen, Yong Zhang
Summary: The research proposes a method of using a sol-gel process combined with spin coating to prepare a LaFeO3 thin film for batch fabrication of formaldehyde gas sensors with low detection limits. The sensors exhibit good uniformity and replicability, showing high performance with ppb-level detection limits.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Ahmad Umar, Ahmed A. Ibrahim, Rajesh Kumar, Hassan Algadi, Hasan Albargi, Faheem Ahmad, Wen Zeng, M. Shaheer Akhtar
Summary: In this study, alpha-MnO2 nanowires were synthesized hydrothermally and characterized for their properties. A formaldehyde sensor based on these nanowires demonstrated excellent gas response at 300 degrees C.
Article
Chemistry, Analytical
Xue Li, Yin Zhang, Anish Bhattacharya, Xiangfeng Chu, Shiming Liang, Dawen Zeng
Summary: This paper investigates the gas sensing properties of CdGa2O4 spinel oxide-based gas sensors for formaldehyde. By controlling the preparation conditions, materials with good responses to formaldehyde were obtained, showing promise for the detection of formaldehyde at ultralow concentrations.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
R. Souissi, N. Bouguila, M. Bendahan, K. Aguir, T. Fiorido, M. Abderrabba, I Halidou, A. Labidi
Summary: The importance of detecting ozone and its impact on human health; Gas sensors based on In2S3 films prepared have high sensitivity and low detection limits; The gas sensor at a working temperature of 160 degrees Celsius exhibits good rapidity and selectivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Srijeet Tripathy, Avik Sett, Santanab Majumder, Tarun Kanti Bhattacharyya
Summary: This study investigates the effects of gate voltage on ammonia sensing properties of carbon nanotube thin film transistors (CNT TFT). The sensitivity and detection limit of the device are found to be significantly improved under the influence of a gate field. The amplification of sensor response is attributed to the increase in adsorption energy of ammonia due to the gate field, as well as the reversible increase of contact resistance induced by ammonia exposure in the negative gate regime.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Amruta B. Nagare, Namdev S. Harale, Suprimkumar D. Dhas, Umesh V. Shembade, Suhas R. Ghatage, Pramod S. Patil, Annasaheb V. Moholkar
Summary: Nanogranular polypyrrole (PPy) thin films were successfully synthesized by in-situ oxidative polymerization and drop casting method. The films exhibited agglomerated granular-like morphology with high roughness. The optimized PPy thin film gas sensor showed excellent response and stability towards NO2 gas even at low concentrations.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Physics, Applied
Lihao Zhou, Yinhua Hu, Shaobo Li, Xianghong Liu, Jun Zhang
Summary: In this study, MXene was passivated using atomic layer deposition (ALD). The passivated MXene@SnO2 material exhibited a high response rate and fast recovery time in gas sensor tests, demonstrating the potential for developing MXene-based gas sensors using the ALD technique.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Environmental
Peng Wang, Shisong Guo, Zhixiang Hu, Tiankun Li, Shiliang Pu, Hui Mao, Hong Cai, Zhenfeng Zhu, Hua-Yao Li, Huan Liu
Summary: This paper presents a new method for the synthesis of Pd-sensitized W18O49 nanomaterials using ultrasonic-solvothermal method, which exhibit high sensitivity and selectivity for formaldehyde gas detection.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
J. Y. Niu, B. Hong, J. C. Xu, Y. B. Han, H. X. Jin, D. F. Jin, Y. X. Zeng, X. L. Peng, H. L. Ge, X. Q. Wang
Summary: Mesoporous indium oxide nanowires were successfully synthesized and separated into bundled nanowires and dispersed nanowires. Both samples exhibited similar mesoporous structures and defects, but the bundled nanowires had a higher specific surface area than the dispersed nanowires. The smaller grain size and larger surface area of the bundled nanowires contributed to their higher sensitivity to formaldehyde.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Yanhui Sun, Shouhang Fu, Shupeng Sun, Jiawen Cui, Zhixin Luo, Zefeng Lei, Yue Hou
Summary: This study investigates the gas-sensitive mechanism of SnO2/zeolite gas sensors using ZSM-5 zeolite as a band gap-tunable semiconductor. The band gap of the zeolite is tuned by designing a heterostructure of Ag and ZSM-5. The gas-sensing performance of the SnO2/Ag@ZSM-5 sensor is greatly improved, with a significant increase in response value and enhanced selectivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Guanglu Lei, Zishuo Li, Guocai Lu, Jinyuan Hu, Haochuan Shang, Xiaolei Zhang, Xianghong Liu, Jun Zhang, Xiangxin Guo
Summary: Metal oxide semiconductor (MOS) thin films, especially tungsten oxide (WO3) thin films, have shown great potential as sensing layers for gas sensor devices. This study focuses on the deposition and annealing process of WO3 thin films on interdigital electrodes, and explores the impact of oxygen vacancies on sensor properties. The results indicate that the WO3 sensor annealed at 500 degrees C exhibits the best performance in detecting triethylamine (TEA), which is attributed to the enhanced adsorption of oxidative oxygen species due to the presence of abundant oxygen vacancies.
JOURNAL OF MATERIOMICS
(2022)
Article
Chemistry, Multidisciplinary
Beixi An, Yibing Luo, Jinglong Bai, Yanrong Wang, Xu Cheng, Jianpeng Li, Qiao Wang, Yifan Yang, Erqing Xie
Summary: The bimetal-doped WO3 nanospheres exhibit higher response, faster response/recovery time, and better selectivity in hydrogen sensing compared to single metal-doped WO3. The superior performance is attributed to the strong adsorption of hydrogen resulting from the synergistic effect of the two metals.
Article
Materials Science, Multidisciplinary
Peng Zhang, Le-Xi Zhang, Heng Xu, Yue Xing, Jing-Jing Chen, Li-Jian Bie
Summary: In this study, ultrathin CeO2 nanosheets were synthesized through a facile low-temperature hydrothermal method, showing potential as bifunctional sensing materials for humidity and formaldehyde vapor. The CeO2 nanosheets exhibited excellent sensing characteristics and fast response/recovery speed towards humidity and formaldehyde vapor, respectively. The sensing mechanisms for humidity and formaldehyde were also discussed.
Article
Chemistry, Multidisciplinary
Suriya Duangmanee, Yingyot Poo-arporn, Pattanaphong Janphuang, Pimchanok Leuasoongnoen, Surangrat Tonlublao, Phitsamai Kamonpha, Natawan Saengchai, Narong Chanlek, Chatree Saisombat, Pinit Kidkhunthod, Rungtiva P. Poo-arporn
Summary: In this study, a simple and facile growth method was used to fabricate vertically aligned ZnO thin films, which were then applied in methane gas sensors. The results showed a good correlation between the film structure and sensor response.
Article
Chemistry, Physical
Siti Amaniah Mohd Chachuli, Mohd Nizar Hamidon, Mehmet Ertugrul, Md Shuhazlly Mamat, Omer Coban, Fatma Nur Tuzluca, Yasar Ozkan Yesilbag, N. H. Shamsudin
Summary: Various doping materials, such as MWCNTs, graphene nanoflakes and MXene, have been doped into TiO2 to investigate their hydrogen sensing properties. The addition of MWCNTs and MXene to TiO2 reduced the operating temperature of the TiO2 gas sensor, while graphene nanoflakes did not affect it. The TiO2/MWCNT gas sensor showed the highest sensitivity to hydrogen at an operating temperature of 250 degrees C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Lander Rojo, Irene Castro-Hurtado, Maria C. Morant-Minana, Gemma G. Mandayo, Enrique Castano
Article
Chemistry, Multidisciplinary
I. Castro-Hurtado, J. Gonzalez-Chavarri, S. Morandi, J. Sama, A. Romano-Rodriguez, E. Castano, G. G. Mandayo
Article
Chemistry, Physical
L. Parellada-Monreal, I. Castro-Hurtado, M. Martinez-Calderon, A. Rodriguez, S. M. Olaizola, D. Gamarra, J. Lozano, G. G. Mandayo
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Analytical
Jurgi Gonzalez-Chavarri, Laura Parellada-Monreal, Irene Castro-Hurtado, Enrique Castano, Gemma G. Mandayo
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Materials Science, Multidisciplinary
I. Castro-Hurtado, C. Malagu, S. Morandi, N. Perez, G. G. Mandayo, E. Castano
Article
Chemistry, Physical
I. Castro-Hurtado, T. Tavera, P. Yurrita, N. Perez, A. Rodriguez, G. G. Mandayo, E. Castano
APPLIED SURFACE SCIENCE
(2013)
Article
Chemistry, Multidisciplinary
Lander Rojo, Irene Castro-Hurtado, Maria C. Morant-Minana, Gemma G. Mandayo, Enrique Castano
Article
Chemistry, Analytical
I. Castro-Hurtado, J. Herran, N. Perez, S. M. Olaizola, G. Ga Mandayo, E. Castano
Article
Chemistry, Analytical
Gemma Garcia Mandayo, Jaime Herran, Irene Castro-Hurtado, Enrique Castano
Article
Materials Science, Multidisciplinary
I. Castro-Hurtado, J. Herran, G. Ga Mandayo, E. Castano
Article
Chemistry, Physical
L. Parellada-Monreal, I Castro-Hurtado, M. Martinez-Calderon, L. Presmanes, G. G. Mandayo
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Analytical
L. Parellada-Monreal, S. Gherardi, G. Zonta, C. Malagu, D. Casotti, G. Cruciani, V. Guidi, M. Martinez-Calderon, I. Castro-Hurtado, D. Gamarra, J. Lozano, L. Presmanes, G. G. Mandayo
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Analytical
Lander Rojo, Irene Castro-Hurtado, Gemma G. Mandayo, Enrique Castano, Maria C. Morant-Minana
Article
Environmental Sciences
G. G. Mandayo, J. Gonzalez-Chavarri, E. Hammes, H. Newton, I Castro-Hurtado, I Ayerdi, H. Knapp, A. Sweetman, C. N. Hewitt, E. Castano