A5034850357- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Coal Combustion and Slurry Processing
- Electrochemical sensors and biosensors
- Recycling and utilization of industrial and municipal waste in materials production
- Coal and Its By-products
- Thermochemical Biomass Conversion Processes
- Thermal and Kinetic Analysis
- Spectroscopy and Laser Applications
State Key Laboratory of Transducer Technology
2019-2022
Chinese Academy of Sciences
2019-2022
Aerospace Information Research Institute
2019-2022
University of Chinese Academy of Sciences
2019-2022
China University of Mining and Technology
2020-2021
Abstract Hydrogen (H 2 ) sensors are of great significance in hydrogen energy development and safety monitoring. However, achieving fast effective detection low concentrations is a key problem to be solved sensing. In this work, we combined the excellent gas sensing properties tin(IV) oxide (SnO zinc (ZnO) with outstanding electrical reduced graphene (rGO) prepared palladium (Pd)-doped rGO/ZnO-SnO nanocomposites by hydrothermal method. The crystal structure, structural morphology, elemental...
The optimal sensor (Co,N-GQDs/SnO 2 ) response value toward 100 ppm H S is 37.3 at 260 °C, which has superior sensing performance. This can be attributed to the increase of active sites on surface and electrical modulation Co,N-GQDs.
In this work, SnO2 nanoflowers were prepared by a simple one-step hydrothermal process. The morphology and structure of characterized SEM, TEM, Raman spectroscopy, XRD, which demonstrated the good crystallinity tetrahedron as-synthesized materials. addition, sensing properties studied in detail. It was found that nanoflower-based gas sensor exhibits excellent response (9.2 to 120 ppm), fast recovery (2/15 s 6 linearity correlation between (S) vs. concentration (C) (lgS = 0.505 lgC - 0.147,...
In this work, a high sensitivity micro-thermal conductivity detector (μTCD) with four thermal cells was proposed. Compared conventional TCD sensors, the cell in work designed as streamlined structure; thermistors were supported by strong cantilever beam and suspended center of cell, which able to greatly reduce dead volume heat loss substrate, improving detection sensitivity. The experimental results demonstrated that μTCD shows good stability sensitivity, could rapidly detect light gases...
Correction for ‘Co,N-doped GQDs/SnO 2 mesoporous microspheres exhibit synergistically enhanced gas sensing properties H S detection’ by Tingting Chen et al. , J. Mater. Chem. A 2022, https://doi.org/10.1039/d2ta00837h.
In this work, a novel micro-thermal conductivity detector (microTCD) with high sensitivity has been introduced, in which the two Pt-resistors on same arm (reference or test arm) are arranged parallel thermal cell. The fabrication of sensors is realized by micro-electro-mechanicalsystem (MEMS) technology. A model microstructure simulated COMSOL that couples electrical and physics together. Modeling results show temperature difference design between platinum resistor (Tf) cell (Tw) maximum...