Acid Vapor Oxidation Growth of SnO 2 Nanospheres with Ultra-High Sensitivity to Ethanol Detection at Low Temperature

2021 ◽  
Author(s):  
Xin Tian ◽  
Huitong Cao ◽  
Hairong Wang ◽  
Juihong Wang ◽  
Xueyong Wei ◽  
...  
2020 ◽  
Vol 315 ◽  
pp. 112341
Author(s):  
Zhaojun Liu ◽  
Bian Tian ◽  
Xu Fan ◽  
Jiangjiang Liu ◽  
Zhongkai Zhang ◽  
...  

1974 ◽  
Vol 64 ◽  
pp. 40-51 ◽  
Author(s):  
S. P. Boughn ◽  
W. M. Fairbank ◽  
M. S. McASHAN ◽  
H. J. Paik ◽  
R. C. Taber ◽  
...  

Cryogenic detectors for gravitational wave astronomy promise greatly improved sensitivity over room temperature detectors. The 3 mK detector which we have under construction should give an improvement of 106 over existing detectors. The cryogenic antennae are described and the calculated low temperature performance is detailed. New superconducting instrumentation is described.


2019 ◽  
Vol 9 (8) ◽  
pp. 2008-2018 ◽  
Author(s):  
Zebang Liu ◽  
Jerry Pui Ho Li ◽  
Xiaomian Qi ◽  
Yunqian Dai ◽  
Yong Yang

A customized apparatus with online MS is used for chemisorption measurements, providing high sensitivity, demonstrated on Pt and Cu catalysts.


2020 ◽  
Vol 310 ◽  
pp. 112048
Author(s):  
Ke Tian ◽  
Meng Zhang ◽  
Jibo Yu ◽  
Yuxuan Jiang ◽  
Haiyan Zhao ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4150-4156 ◽  
Author(s):  
Dongyang Xue ◽  
Rui Zhou ◽  
Xiaoping Lin ◽  
Xiaochuan Duan ◽  
Qiuhong Li ◽  
...  

Cr-doped α-Fe2O3 nanoparticles were synthesized by one-step hydrothermal reaction and showed high sensitivity and selectivity to H2S at low temperature.


Biosensors ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 21 ◽  
Author(s):  
Isabel Sayago ◽  
Manuel Aleixandre ◽  
José Pedro Santos

Tin oxide nanofibres (NFs) are used as nanosensors in electronic noses. Their performance is compared to that of oxide commercial chemical sensors for pollutant detection. NFs were grown by electrospinning and deposited onto silicon substrates with integrated micro-hotplates. NF morphology was characterized by scanning electron microscopy (SEM). The NFs presented high sensitivity to NO2 at low temperature.


Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 315 ◽  
Author(s):  
Liangliang He ◽  
Junlong Li ◽  
Xin Wu ◽  
Fengwen Mu ◽  
Yinghui Wang ◽  
...  

With the assistance of Pt-catalyzed formic acid vapor, robust Ag-Cu bonding was realized at an ultra-low temperature of 160 °C under 3 MPa for 30 min via the sintering of Ag nanoparticles in situ generated from Ag2O microparticles. The Cu oxide layer at the interface after bonding can be eliminated, which improves the bond strength and electrical conductivity of the joint. A metallic bond contact between the sintered Ag and the Cu substrate is obtained without interfacial solid solution and intermetallic phases, and the shear strength is comparable to previous bonding at a higher temperature. The bonding mechanisms were figured out by comparing the bonding with and without the Pt-catalyzed formic acid vapor. This ultra-low temperature Ag-Cu bonding method may create more flexibilities in the structure design and material selection for power device integration.


Micromachines ◽  
2014 ◽  
Vol 5 (2) ◽  
pp. 396-407 ◽  
Author(s):  
Chen Li ◽  
Qiulin Tan ◽  
Wendong Zhang ◽  
Chenyang Xue ◽  
Yunzhi Li ◽  
...  

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