Selected Environmental Applications of Nanocrystalline Metal Oxides

2010 ◽  
pp. 77-95
Author(s):  
Slawomir Winecki
Keyword(s):  
Metal Oxides ◽  
Environmental Applications ◽  
Nanocrystalline Metal

Impedance Spectroscopy Screening of Various Nanocrystalline Metal Oxides: Effect of Lithiation on Electrical Properties

2017 ◽  
Vol 5 (8) ◽  
pp. 1407-1414 ◽  
Author(s):  
Jacqueline E. Cloud ◽  
Curtis J. Guild ◽  
Sourav Biswas ◽  
Steven L. Suib
Keyword(s):  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Metal Oxides ◽  
Nanocrystalline Metal

scholarly journals Catalytic Applications of CeO2-Based Materials

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 576
Author(s):  
Antonio Vita
Keyword(s):  
Metal Oxides ◽  
Energy Conversion ◽  
Environmental Applications ◽  
Chemical Transformations ◽  
Energy Conversion Systems ◽  
Catalytic Applications

Among the metal-oxides, ceria represents one of the most promising materials for chemical transformations mainly for environmental applications and energy conversion systems [...]

scholarly journals Nanocrystalline Metal Oxides for Methane Sensors: Role of Noble Metals

2009 ◽  
Vol 2009 ◽  
pp. 1-20 ◽  
Author(s):  
S. Basu ◽  
P. K. Basu
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Noble Metal ◽  
Gas Sensors ◽  
Noble Metals ◽  
Industrial Applications ◽  
Metal Catalyst ◽  
Nanocrystalline Metal ◽  
Sensing Properties

Methane is an important gas for domestic and industrial applications and its source is mainly coalmines. Since methane is extremely inflammable in the coalmine atmosphere, it is essential to develop a reliable and relatively inexpensive chemical gas sensor to detect this inflammable gas below its explosion amount in air. The metal oxides have been proved to be potential materials for the development of commercial gas sensors. The functional properties of the metal oxide-based gas sensors can be improved not only by tailoring the crystal size of metal oxides but also by incorporating the noble metal catalyst on nanocrystalline metal oxide matrix. It was observed that the surface modification of nanocrystalline metal oxide thin films by noble metal sensitizers and the use of a noble metal catalytic contact as electrode reduce the operating temperatures appreciably and improve the sensing properties. This review article concentrates on the nanocrystalline metal oxide methane sensors and the role of noble metals on the sensing properties.

Novel Preparation of Nano-Sized TiO2 and ZrO2 Particles by Nanocasting with Nanoporous SiO2 and Selective Dissolution

2007 ◽  
Vol 124-126 ◽  
pp. 643-646
Author(s):  
Jun Lee ◽  
Yoshihiro Sugi ◽  
Nam Jo Jeong ◽  
Gon Seo ◽  
Sung June Cho
Keyword(s):  
Metal Oxides ◽  
Surface Area ◽  
Pore Volume ◽  
High Surface ◽  
High Surface Area ◽  
Selective Dissolution ◽  
Metal Alkoxides ◽  
Nanocrystalline Metal

High surface area and uniform nano-sized TiO2 and ZrO2 were prepared readily by the infiltration of metal alkoxides into the nanoporous SiO2, SBA-15 and the following selective dissolution of SiO2. The obtained particles of TiO2 and ZrO2, 8.1 nm were nanocrystalline of which the structure were anatase and tetragonal, respectively. The surface area and pore volume of the nanocrystalline metal oxides can be increased to above 200 m2g-1 and 0.30 cm3g-1, respectively.

scholarly journals Electrospun porous La-Sr-Co-Ni-O nanofibers for highly sensitive non-enzymatic glucose detection

2022 ◽  
Author(s):  
Kasci D Pelucarte ◽  
Tashi A Hatchell ◽  
Gibin George ◽  
Sivasankara Rao Ede ◽  
Menuka Adhikari ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Perovskite Structure ◽  
High Sensitivity ◽  
Environmental Applications ◽  
Glucose Detection ◽  
Glucose Biosensors ◽  
Highly Sensitive ◽  
Excellent Stability

Glucose biosensors are widely used for clinical, industrial, and environmental applications. Nonenzymatic electrochemical glucose biosensors based on metal oxides with a perovskite structure have exhibited high sensitivity, excellent stability, and...

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