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

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.

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.

Room-Temperature Hydrogen Sensing with Heteronanostructures Based on Reduced Graphene Oxide and Tin Oxide

2012 ◽  
Vol 51 (44) ◽  
pp. 11053-11057 ◽  
Author(s):  
Patrícia A. Russo ◽  
Nicola Donato ◽  
Salvatore Gianluca Leonardi ◽  
Seunghwan Baek ◽  
Donato E. Conte ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Room Temperature ◽  
Hydrogen Sensing ◽  
Reduced Graphene

Laser irradiated nano-architectured undoped tin oxide arrays: mechanism of ultrasensitive room temperature hydrogen sensing

Nanoscale ◽  
2012 ◽  
Vol 4 (22) ◽  
pp. 7256 ◽  
Author(s):  
Rameech McCormack ◽  
Nozomi Shirato ◽  
Umesh Singh ◽  
Soumen Das ◽  
Amit Kumar ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Room Temperature ◽  
Hydrogen Sensing

Singular room-temperature hydrogen sensing characteristics with ultrafast recovery of Pt Nb2O5 porous composite ceramics

2017 ◽  
Vol 42 (51) ◽  
pp. 30186-30192 ◽  
Author(s):  
Pengcheng Li ◽  
Zhihong Xiong ◽  
Sheng Zhu ◽  
Mengye Wang ◽  
Yongming Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Composite Ceramics ◽  
Porous Composite ◽  
Hydrogen Sensing ◽  
Sensing Characteristics

Room-Temperature Hydrogen Sensing with Heteronanostructures Based on Reduced Graphene Oxide and Tin Oxide

2012 ◽  
Vol 124 (44) ◽  
pp. 11215-11219 ◽  
Author(s):  
Patrícia A. Russo ◽  
Nicola Donato ◽  
Salvatore Gianluca Leonardi ◽  
Seunghwan Baek ◽  
Donato E. Conte ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tin Oxide ◽  
Room Temperature ◽  
Hydrogen Sensing ◽  
Reduced Graphene

Pd Nanocluster/Monolayer MoS2 Heterojunctions for Light-Induced Room-Temperature Hydrogen Sensing

2021 ◽  
Author(s):  
Hien Duy Mai ◽  
Sangmin Jeong ◽  
Tri Khoa Nguyen ◽  
Jong-Sang Youn ◽  
Seungbae Ahn ◽  
...  
Keyword(s):  
Room Temperature ◽  
Monolayer Mos2 ◽  
Hydrogen Sensing
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