Sol–gel synthesis of Pd doped ZnO nanorods for room temperature hydrogen sensing applications

2013 ◽  
Vol 39 (6) ◽  
pp. 6461-6466 ◽  
Author(s):  
M. Kashif ◽  
M.E. Ali ◽  
Syed M. Usman Ali ◽  
U. Hashim
Keyword(s):  
Room Temperature ◽  
Sol Gel ◽  
Zno Nanorods ◽  
Hydrogen Sensing ◽  
Sensing Applications ◽  
Doped Zno ◽  
Sol Gel Synthesis

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.

Sol–gel synthesis of Ba‐doped ZnO nanoparticles and its use in varistor ceramics

2018 ◽  
Vol 13 (10) ◽  
pp. 1506-1509 ◽  
Author(s):  
Rong Yang ◽  
Xiao Qu ◽  
Mao‐Hua Wang
Keyword(s):  
Zno Nanoparticles ◽  
Sol Gel ◽  
Doped Zno ◽  
Sol Gel Synthesis

scholarly journals Room Temperature Synthesis of V-Doped TiO2 and Its Photocatalytic Activity in the Removal of Caffeine under UV Irradiation

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 911 ◽  
Author(s):  
Olga Sacco ◽  
Diana Sannino ◽  
Mariantonietta Matarangolo ◽  
Vincenzo Vaiano
Keyword(s):  
Room Temperature ◽  
Uv Light ◽  
Sol Gel ◽  
Doped Tio2 ◽  
Toc Removal ◽  
Calcination Step ◽  
Caffeine Degradation ◽  
Wavelength Emission ◽  
Sol Gel Synthesis ◽  
Uv Leds

In this work, the influence of simple acids in the room temperature sol-gel synthesis of TiO2 was investigated and the efficiency of prepared photocatalysts was evaluated in the removal of caffeine. To improve the photoactivity of TiO2, vanadium-doped TiO2 (VTiO2) samples were obtained starting from different amount of vanadyl sulphate as a dopant source. The samples were centrifuged, washed and finally dried at room temperature, and no calcination step was carried out. The prepared photocatalysts were characterized by different techniques (X-ray powder diffraction (XRD), specific surface area (SSA), ultraviolet-visible diffuse reflectance spectra (UV-vis DRS) and Raman). VTiO2 photocatalysts were tested in the photocatalytic removal of aqueous solutions containing caffeine. The photocatalytic tests were carried out in a recirculating batch cylindrical photoreactor irradiated by a UV LEDs strip (nominal power of 12 W and wavelength emission peak at about 365 nm) surrounding the external surface of the reactor. The optimized VTiO2 photocatalyst was able to reach a caffeine degradation of about 96% after 360 min of UV light irradiation with a total organic carbon (TOC) removal of 72%.

Structural Dependence of Photoluminescence and Room-Temperature Ferromagnetism in Lightly Cu-Doped ZnO Nanorods

2011 ◽  
Vol 47 (10) ◽  
pp. 3366-3368 ◽  
Author(s):  
C. C. Lin ◽  
S. L. Young ◽  
C. Y. Kung ◽  
H. Z. Chen ◽  
M. C. Kao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Zno Nanorods ◽  
Structural Dependence ◽  
Doped Zno

Sol-gel synthesis and nanostructured semiconductor analysis of undoped and Cd-doped ZnO thin films

Optik ◽  
2018 ◽  
Vol 169 ◽  
pp. 303-313 ◽  
Author(s):  
Badis Rahal ◽  
Boubekeur Boudine ◽  
Youssef Larbah ◽  
Lakhdar Guerbous ◽  
Miloud Sebais ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Doped Zno ◽  
Sol Gel Synthesis ◽  
Nanostructured Semiconductor

Hierarchical ZnO nanorods/Ni(OH)2 nanoflakes for room-temperature, cheap fabrication of non-enzymatic glucose sensors

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 111374-111379 ◽  
Author(s):  
V. Strano ◽  
S. Mirabella
Keyword(s):  
Room Temperature ◽  
Zno Nanorods ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Hierarchical Nanostructures ◽  
Sensing Applications

Optimization of hierarchical nanostructures composed of Ni(OH)2 nanoflakes on ZnO nanorods (NRs) for inexpensive amperometric glucose sensing applications.

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