scholarly journals Hydrogen Sensing Characteristics of a Quartz Oscillator

10.5772/48449 ◽  
2012 ◽  
Author(s):  
Atsushi Suzuki
Keyword(s):  
Hydrogen Sensing ◽  
Quartz Oscillator ◽  
Sensing Characteristics

scholarly journals Transforming Pt-SnO2 Nanoparticles into Pt-SnO2 Composite Nanoceramics for Room-Temperature Hydrogen-Sensing Applications

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2123
Author(s):  
Ming Liu ◽  
Caochuang Wang ◽  
Pengcheng Li ◽  
Liang Cheng ◽  
Yongming Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Sintering Temperature ◽  
Sno2 Nanoparticles ◽  
Hydrogen Sensing ◽  
Sensing Applications ◽  
Nanostructured Metal Oxides ◽  
Low Dimensional ◽  
Sensing Characteristics ◽  
Nanostructured Metal

Many low-dimensional nanostructured metal oxides (MOXs) with impressive room-temperature gas-sensing characteristics have been synthesized, yet transforming them into relatively robust bulk materials has been quite neglected. Pt-decorated SnO2 nanoparticles with 0.25–2.5 wt% Pt were prepared, and highly attractive room-temperature hydrogen-sensing characteristics were observed for them all through pressing them into pellets. Some pressed pellets were further sintered over a wide temperature range of 600–1200 °C. Though the room-temperature hydrogen-sensing characteristics were greatly degraded in many samples after sintering, those samples with 0.25 wt% Pt and sintered at 800 °C exhibited impressive room-temperature hydrogen-sensing characteristics comparable to those of their counterparts of as-pressed pellets. The variation of room-temperature hydrogen-sensing characteristics among the samples was explained by the facts that the connectivity between SnO2 grains increases with increasing sintering temperature, and Pt promotes oxidation of SnO2 at high temperatures. These results clearly demonstrate that some low-dimensional MOX nanocrystals can be successfully transformed into bulk MOXs with improved robustness and comparable room-temperature gas-sensing characteristics.

Hydrogen Sensing Characteristics of Pd-Ag Composite Film Micro-structured Grating Fiber with Different Silver Content

2019 ◽  
Vol 48 (8) ◽  
pp. 806004
Author(s):  
周贤 ZHOU Xian ◽  
杨沫 YANG Mo ◽  
明兴祖 MING Xing-zu ◽  
邬国秀 WU Guo-xiu ◽  
张文 ZHANG Wen ◽  
...  
Keyword(s):  
Composite Film ◽  
Silver Content ◽  
Hydrogen Sensing ◽  
Sensing Characteristics

Hydrogen sensing characteristics of Pd-decorated ultrathin ZnO nanosheets

2020 ◽  
pp. 129222
Author(s):  
Jae-Hun Kim ◽  
Ali Mirzaei ◽  
Minoru Osada ◽  
Hyoun Woo Kim ◽  
Sang Sub Kim
Keyword(s):  
Hydrogen Sensing ◽  
Zno Nanosheets ◽  
Sensing Characteristics

Fabrication of ZnO Nanowall-Based Hydrogen Gas Nanosensor

2013 ◽  
Vol 684 ◽  
pp. 21-25 ◽  
Author(s):  
Tse Pu Chen ◽  
Sheng Po Chang ◽  
Shoou Jinn Chang
Keyword(s):  
Seed Layer ◽  
Room Temperature ◽  
Thermal Evaporation ◽  
Hydrogen Gas ◽  
Two Dimensional ◽  
Defect Related Emission ◽  
Room Temperature Photoluminescence ◽  
Hydrogen Sensing ◽  
Uv Emission ◽  
Sensing Characteristics

Two-dimensional ZnO nanowalls were rapidly grown on glass substrate by thermal evaporation at low temperature without any catalysts or the pre-deposition of a ZnO seed layer on the substrate. Most of the ZnO nanowalls grown at 450°C were vertical on substrate and they were about 70-200 nm thick and 2 µm long. The room-temperature photoluminescence (PL) spectra showed a strong intrinsic ultraviolet (UV) emission and a weak defect-related emission. Hydrogen-sensing characteristics of the ZnO nanowalls have been investigated, and that make them become attractive candidates for gas sensor.

An Investigation on Electrical and Hydrogen Sensing Characteristics of RF Sputtered ZnO Thin-Film With Palladium Schottky Contacts

2017 ◽  
Vol 17 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Lintu Rajan ◽  
Periasamy Chinnamuthan ◽  
Vijayakumar Krishnasamy ◽  
Vineet Sahula
Keyword(s):  
Thin Film ◽  
Schottky Contacts ◽  
Zno Thin Film ◽  
Hydrogen Sensing ◽  
Sensing Characteristics

Hydrogen Sensing Characteristics of High Electron Mobility Transistor with a Catalytic Pd Metal

2007 ◽  
Vol 539-543 ◽  
pp. 5025-5030 ◽  
Author(s):  
Kun Wei Lin
Keyword(s):  
Electron Mobility ◽  
High Electron Mobility Transistor ◽  
Hydrogen Sensor ◽  
High Electron ◽  
High Electron Mobility ◽  
Hydrogen Sensing ◽  
Metal Work Function ◽  
Catalytic Metal ◽  
Metal Work ◽  
Sensing Characteristics

In this work, the comprehensive study of an interesting Pd/AlGaAs pseudomorphic high electron mobility transistor (pHEMT) based hydrogen sensor is implemented. The theoretical analysis and simulation are made by using a two-dimensional simulator Medici. In addition, a practical device is fabricated successfully. Based on the variations of the catalytic metal work function, the DC characteristics of experimental and simulated results are compared and studied.

Effect of Air-Pressure on Room Temperature Hydrogen Sensing Characteristics of Nanocrystalline Doped Tin Oxide MEMS-Based Sensor

2005 ◽  
Vol 5 (11) ◽  
pp. 1864-1874 ◽  
Author(s):  
Satyajit Shukla ◽  
Lawrence Ludwig ◽  
Hyoung J. Cho ◽  
Julian Duarte ◽  
Sudipta Seal
Keyword(s):  
Tin Oxide ◽  
Room Temperature ◽  
Air Pressure ◽  
Hydrogen Sensing ◽  
Sensing Characteristics
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