Synthesis of Amorphous TiO2 Nanoparticles with a High Surface Area and Their Transformation to Li4Ti5O12 Nanoparticles

2016 ◽  
Vol 45 (11) ◽  
pp. 1285-1287 ◽  
Author(s):  
Misaki Ota ◽  
Bram Dwijaya ◽  
Yuichiro Hirota ◽  
Yoshiaki Uchida ◽  
Shunsuke Tanaka ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Amorphous Tio2

scholarly journals CO2 Adsorption Property of Amine-Modified Amorphous TiO2 Nanoparticles with a High Surface Area

2018 ◽  
Vol 2 (3) ◽  
pp. 25 ◽  
Author(s):  
Misaki Ota ◽  
Yuichiro Hirota ◽  
Yoshiaki Uchida ◽  
Norikazu Nishiyama
Keyword(s):  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Co2 Adsorption ◽  
Adsorption Property ◽  
High Surface ◽  
High Surface Area ◽  
Amorphous Tio2

High surface area TiO2 nanoparticles: impact of carboxylporphyrin sensitizers in the photocatalytic activity

2020 ◽  
Vol 21 ◽  
pp. 100774
Author(s):  
Caique Prado Machado de Oliveira ◽  
Ana Luísa Almeida Lage ◽  
Dayse Carvalho da Silva Martins ◽  
Nelcy Della Santina Mohallem ◽  
Marcelo Machado Viana
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area

Hydrothermal growth of ligand-passivated high-surface-area TiO2 nanoparticles and dye-sensitized solar cell characteristics

2013 ◽  
Vol 68 (6) ◽  
pp. 396-399 ◽  
Author(s):  
G. Arthi ◽  
J. Archana ◽  
M. Navaneethan ◽  
S. Ponnusamy ◽  
Y. Hayakawa ◽  
...  
Keyword(s):  
Solar Cell ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Hydrothermal Growth ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized

scholarly journals Synthesis of high surface area TiO2 nanoparticles by mild acid treatment with HCl or HI for photocatalytic propene oxidation

2014 ◽  
Vol 154-155 ◽  
pp. 285-293 ◽  
Author(s):  
M. Ouzzine ◽  
J.A. Maciá-Agulló ◽  
M.A. Lillo-Ródenas ◽  
C. Quijada ◽  
A. Linares-Solano
Keyword(s):  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Acid Treatment ◽  
High Surface ◽  
High Surface Area ◽  
Propene Oxidation ◽  
Mild Acid

Ultraviolet–Visible Light–Sensitive High Surface Area Phosphorous-Fluorine–Co-Doped TiO2 Nanoparticles for the Degradation of Atrazine in Water

2014 ◽  
Vol 31 (7) ◽  
pp. 435-446 ◽  
Author(s):  
Javed Ali Khan ◽  
Changseok Han ◽  
Noor S. Shah ◽  
Hasan M. Khan ◽  
Mallikarjuna N. Nadagouda ◽  
...  
Keyword(s):  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Doped Tio2 ◽  
Co Doped

Aero-gel assisted synthesis of anatase TiO2 nanoparticles for humidity sensing application

2018 ◽  
Vol 47 (18) ◽  
pp. 6293-6298 ◽  
Author(s):  
Ekta Poonia ◽  
Prashant Kumar Mishra ◽  
Vijay Kiran ◽  
Jasbir Sangwan ◽  
Rakesh Kumar ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Anatase Phase ◽  
High Surface ◽  
High Surface Area ◽  
Anatase Tio2 ◽  
One Pot ◽  
Humidity Sensing ◽  
One Pot Synthesis ◽  
Sensing Application

The aero-gel based one-pot synthesis of anatase phase TiO2 nanoparticles having a high surface area of 125 m2 g−1 has been reported in this work.

scholarly journals Synthesis of Superior Visible-Light-Driven Nanophotocatalyst Using High Surface Area TiO2 Nanoparticles Decorated with CuxO Particles

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 872
Author(s):  
Nezar H. Khdary ◽  
Waleed S. Alkhuraiji ◽  
Tamil S. Sakthivel ◽  
Duaa N. Khdary ◽  
Mohamed Abdel Salam ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Organic Pollutants ◽  
High Surface ◽  
High Surface Area ◽  
Chemically Modified ◽  
Hydroxyl Free Radical ◽  
Visible Light Driven

This work provides an alternate unique simple methodology to design and synthesize chemically modified nanophotocatalyst based on high surface area TiO2 nanoparticles that can be used efficiently for the photodegradation of organic pollutants under normal visible light rather than complicated UV irradiation. In this study, dual visible light and UV-driven nanophotocatalysts were synthesized via wet chemistry procedures using high surface area TiO2 nanoparticles functionalized with (3-Aminopropyl) trimethoxysilane and attached chemically to the CuXO to improve the charge separation and maintain the non-charge recombination. The successful modification of the TiO2 nanoparticles and the formation of the TiO2-NH2-CuxO nanophotocatalyst were confirmed using different characterization techniques, and the results revealed the synthesis of high surface area TiO2 nanoparticles, and their chemical modification with an amino group and further decoration with copper to produce TiO2-NH2-CuxO nanophotocatalyst. The photocatalytic activity of TiO2 and TiO2-NH2-CuxO nanophotocatalyst were evaluated using methylene blue (MB) dye; as an example of organic pollutants. The resulting TiO2-NH2-CuxO nanophotocatalyst exhibited superior photocatalytic activity for the degradation of MB dye under visible light irradiation, due to the reduction in the energy bandgap. The degradation of the MB dye using the TiO2-NH2-CuxO nanophotocatalyst was investigated using LC-MS, and the results revealed that the hydroxyl free radical is mainly responsible for the cleavage and the degradation of the MB dye.

Tenacious Mass Transfer Limitations Drive Catalytic Selectivity during Electrochemical Carbon Dioxide Reduction

2019 ◽  
Author(s):  
Kailun Yang ◽  
Recep Kas ◽  
Wilson A. Smith
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Catalyst Layer ◽  
Active Surface ◽  
Active Surface Area ◽  
High Concentration ◽  
Copper Electrodes ◽  
Surface Enhanced ◽  
Local Current

<p>This study evaluated the performance of the commonly used strong buffer electrolytes, i.e. phosphate buffers, during CO<sub>2</sub> electroreduction in neutral pH conditions by using in-situ surface enhanced infrared absorption spectroscopy (SEIRAS). Unfortunately, the buffers break down a lot faster than anticipated which has serious implications on many studies in the literature such as selectivity and kinetic analysis of the electrocatalysts. Increasing electrolyte concentration, surprisingly, did not extend the potential window of the phosphate buffers due to dramatic increase in hydrogen evolution reaction. Even high concentration phosphate buffers (1 M) break down within the potentials (-1 V vs RHE) where hydrocarbons are formed on copper electrodes. We have extended the discussion to high surface area electrodes by evaluating electrodes composed of copper nanowires. We would like highlight that it is not possible to cope with high local current densities on these high surface area electrodes by using high buffer capacity solutions and the CO<sub>2</sub> electrocatalysts are needed to be evaluated by casting thin nanoparticle films onto inert substrates as commonly employed in fuel cell reactions and up to now scarcely employed in CO<sub>2</sub> electroreduction. In addition, we underscore that normalization of the electrocatalytic activity to the electrochemical active surface area is not the ultimate solution due to concentration gradient along the catalyst layer.This will “underestimate” the activity of high surface electrocatalyst and the degree of underestimation will depend on the thickness, porosity and morphology of the catalyst layer. </p> <p> </p>

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