Construction of PdO-decorated double-shell ZnSnO3 hollow microspheres for n-propanol detection at low temperature

2021 ◽  
Author(s):  
Liyong Du ◽  
Dongxue Wang ◽  
Kuikun Gu ◽  
Mingzhe Zhang
Keyword(s):  
Low Temperature ◽  
Rapid Response ◽  
Hollow Microspheres ◽  
Working Temperature ◽  
Response Recovery

The sensor based on 4 wt% PdO-loaded double-shell ZnSnO3 hollow microspheres shows rapid response/recovery speed to n-propanol at low working temperature.

scholarly journals Flexible Low-Temperature Ammonia Gas Sensor Based on Reduced Graphene Oxide and Molybdenum Disulfide

Chemosensors ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 345
Author(s):  
Zhe Ren ◽  
Yunbo Shi ◽  
Tianming Song ◽  
Tian Wang ◽  
Bolun Tang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Recovery Time ◽  
Detection Range ◽  
Working Temperature ◽  
Response Recovery ◽  
Reduced Graphene

Owing to harsh working environments and complex industrial requirements, traditional gas sensors are prone to deformation damage, possess a limited detection range, require a high working temperature, and display low reliability, thereby necessitating the development of flexible and low-temperature gas sensors. In this study, we developed a low-temperature polyimide (PI)-based flexible gas sensor comprising a reduced graphene oxide (rGO)/MoS2 composite. The micro-electro-mechanical system technology was used to fabricate Au electrodes on a flexible PI sheet to form a “sandwiched” sensor structure. The rGO/MoS2 composites were synthesized via a one-step hydrothermal method. The gas-sensing response was the highest for the composite comprising 10% rGO. The structure of this material was characterized, and a PI-based flexible gas sensor comprising rGO/MoS2 was fabricated. The optimal working temperature of the sensor was 141 °C, and its response-recovery time was significantly short upon exposure to 50–1500 ppm NH3. Thus, this sensor exhibited high selectivity and a wide NH3 detection range. Furthermore, it possessed the advantages of low power consumption, a short response-recovery time, a low working temperature, flexibility, and variability. Our findings provide a new framework for the development of pollutant sensors that can be utilized in an industrial environment.

Local chemical fluctuation mediated ultra-sluggish martensitic transformation in high-entropy intermetallics

2022 ◽  
Author(s):  
Y. Wu ◽  
Fei Zhang ◽  
Fengshou Li ◽  
Yi Yang ◽  
Jiaming Zhu ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Low Temperature ◽  
Aerospace Industry ◽  
Engineering Applications ◽  
High Entropy ◽  
Temperature Range ◽  
Working Temperature

Superelasticity associated with the martensitic transformation has found a broad range of engineering applications such as low-temperature devices in aerospace industry. Nevertheless, the narrow working temperature range and strong temperature...

Acetone Sensing Properties of NiO Nanofibers Based on Electrospinning

2020 ◽  
Vol 842 ◽  
pp. 231-235
Author(s):  
Xiang Xiang Fan ◽  
Meng Ru Li ◽  
Lan Tian Xie ◽  
Ya Juan Xu ◽  
Wu Ming He ◽  
...  
Keyword(s):  
Operating Temperature ◽  
Diabetic Patients ◽  
Face Centered Cubic ◽  
Optimal Operating ◽  
Working Temperature ◽  
Response Recovery ◽  
Potential Applications ◽  
Response And Recovery ◽  
Face Centered ◽  
P Type

Acetone is a main respiratory marker for diabetic patients. In this paper, P-type NiO nanofibers were prepared by electrospinning and used for the detection of acetone gas. NiO nanofibers were characterized by SEM and XRD. The uniform NiO nanofibers with face-centered cubic structure was obtained. The working temperature of NiO nanofibers was optimized, and the optimal operating temperature is 220°C. The response-recovery curve was tested, and the response and recovery time is 24.6 s and 610 s respectively. The response to different concentrations of acetone was also analyzed, and the detection limit was 100 ppb. These results show that NiO nanofibers based on electrospinning have potential applications in the respiratory testing of diabetes.

A Rapid Response/Recovery Ribbon‐like Hydroxyapatite Humidity Sensor with Loose Spatial Structure

2019 ◽  
Vol 4 (43) ◽  
pp. 12643-12648
Author(s):  
Yuwei Gu ◽  
Ziheng Li ◽  
Mingxu Sun ◽  
Shuang Wu ◽  
Xinchen Wang
Keyword(s):  
Spatial Structure ◽  
Humidity Sensor ◽  
Rapid Response ◽  
Response Recovery

Xylene sensor based on α-MoO3 nanobelts with fast response and low operating temperature

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18655-18659 ◽  
Author(s):  
Dingsheng Jiang ◽  
Ying Wang ◽  
Wei Wei ◽  
Feng Li ◽  
Yujia Li ◽  
...  
Keyword(s):  
Hydrothermal Treatment ◽  
Treatment Strategy ◽  
Operating Temperature ◽  
Fast Response ◽  
Rapid Response ◽  
Working Temperature

The best condition of the α-MoO3 nanobelts was researched via hydrothermal treatment strategy. α-MoO3 nanobelts showed rapid response and low working temperature to xylene detection.

A novel humidity sensor based on Na2Ti3O7 nanowires with rapid response-recovery

2008 ◽  
Vol 135 (1) ◽  
pp. 317-321 ◽  
Author(s):  
Yanyan Zhang ◽  
Wuyou Fu ◽  
Haibin Yang ◽  
Minghui Li ◽  
Yixing Li ◽  
...  
Keyword(s):  
Humidity Sensor ◽  
Rapid Response ◽  
Response Recovery

Low-temperature solvothermal synthesis of EuS hollow microspheres

2014 ◽  
Vol 57 ◽  
pp. 19-22 ◽  
Author(s):  
Yong Peng ◽  
Hong Wang ◽  
Peng Li ◽  
Yao Fu ◽  
Mingming Xing ◽  
...  
Keyword(s):  
Low Temperature ◽  
Solvothermal Synthesis ◽  
Hollow Microspheres

Solvothermal synthesis of ZnO-decorated α-Fe2O3 nanorods with highly enhanced gas-sensing performance toward n-butanol

2014 ◽  
Vol 2 (33) ◽  
pp. 13283-13292 ◽  
Author(s):  
Yusuf V. Kaneti ◽  
Quadir M. D. Zakaria ◽  
Zhengjie Zhang ◽  
Chuyang Chen ◽  
Jeffrey Yue ◽  
...  
Keyword(s):  
Solvothermal Synthesis ◽  
Gas Sensing ◽  
Solvothermal Method ◽  
Fast Response ◽  
Working Temperature ◽  
Enhanced Sensitivity ◽  
Response Recovery ◽  
Facile Solvothermal Method ◽  
Sensing Performance

A facile solvothermal method has been developed for the synthesis of α-Fe2O3/ZnO nanocomposites that show enhanced sensitivity, selectivity and fast response–recovery toward n-butanol at a working temperature of 225 °C.

scholarly journals Performance of the highly sensitive humidity sensor constructed with nanofibrillated cellulose/graphene oxide/polydimethylsiloxane aerogel via freeze drying

RSC Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 1543-1552
Author(s):  
Yutong Yang ◽  
Guoting Su ◽  
Qilin Li ◽  
Zipiao Zhu ◽  
Shaoran Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Freeze Drying ◽  
Humidity Sensor ◽  
High Sensitivity ◽  
Nanofibrillated Cellulose ◽  
Rapid Response ◽  
Response Recovery ◽  
Highly Sensitive ◽  
Recovery Behavior

This work presents a nanocellulose-based humidity sensor with high sensitivity, remarkable reproducibility and rapid response/recovery behavior fabricated via freeze drying.

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