TiO2 nanofibers resembling ‘yellow bristle grass’ in morphology by a soft chemical transformation

2015 ◽  
Vol 44 (20) ◽  
pp. 9637-9645 ◽  
Author(s):  
Sandeep Nandan ◽  
T. G. Deepak ◽  
Shantikumar V. Nair ◽  
A. Sreekumaran Nair
Keyword(s):  
Surface Area ◽  
Chemical Transformation ◽  
High Surface ◽  
High Surface Area ◽  
Reaction Conditions ◽  
Tio2 Nanofibers ◽  
One Dimensional

We synthesized a uniquely shaped one-dimensional (1-D) TiO2 nanostructure having the morphology of yellow bristle grass with high surface area by the titanate route under mild reaction conditions.

scholarly journals Catalytic Activity of High-Surface-Area Amorphous MgO Obtained from Upsalite

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1338
Author(s):  
Marek Gliński ◽  
Ewa M. Iwanek (nee Wilczkowska) ◽  
Urszula Ulkowska ◽  
Agnieszka Czajka ◽  
Zbigniew Kaszkur
Keyword(s):  
Surface Area ◽  
Carbonyl Compounds ◽  
Main Product ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Synthesis Conditions ◽  
Transfer Hydrogenation Reaction

The first aim of the research was to synthesize a pure Upsalite, which is an amorphous form of MgCO3, by modifying a procedure described in the literature, so that it would be the precursor of a high-surface, amorphous magnesium oxide. The results indicate that within the studied reaction conditions, the type of alcohol used as the reactant has the most pronounced effect on the yield of reaction. From the two alcohols that led to the highest yield of Upsalite, methanol gave a substantially larger surface area (794 vs. 191 m2 g−1). The optimized synthesis conditions of Upsalite were used to obtain MgO via thermolysis, whose activity in the transfer hydrogenation reaction (THR) from ethanol, 2-propanol and 2-pentanol to various carbonyl compounds was determined. The optimal conditions for the thermolysis were as follows: vacuum, T = 673 K as the final temperature, and a heating rate of 2 deg min−1. The high-surface, amorphous magnesia (SBET = 488 m2 g−1) was found to be a very selective catalyst to 4-t-butylcyclohexanone in THR, which led to a diastereoselectivity of over 94% to the E-isomer of 4-t-butylcyclohexanol for more than 3 h, with conversions of up to 97% with either 2-propanol or 2-pentanol as the hydrogen donor. In the case of acrolein and 2-n-propylacrolein being used as the hydrogen acceptors, the unsaturated alcohol (UOL) was the main product of the reaction, with higher UOL yields noted for ethanol than 2-propanol.

scholarly journals Structural and Photovoltaic Properties of High Surface Area One-dimensional Nanostructured TiO2

2007 ◽  
Vol 1 (4) ◽  
pp. 459-468 ◽  
Author(s):  
Sorapong PAVASUPREE ◽  
Supachai NGAMSINLAPASATHIAN ◽  
Yoshikazu SUZUKI ◽  
Susumu YOSHIKAWA
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Photovoltaic Properties ◽  
Nanostructured Tio2 ◽  
One Dimensional

One-dimensional cadmium hydroxide nanowires towards electrochemical supercapacitor

2015 ◽  
Vol 39 (12) ◽  
pp. 9124-9131 ◽  
Author(s):  
Savita Patil ◽  
Shrikant Raut ◽  
Ratnakar Gore ◽  
Babasaheb Sankapal
Keyword(s):  
Thin Film ◽  
Surface Area ◽  
Room Temperature ◽  
High Surface ◽  
High Surface Area ◽  
Temperature Synthesis ◽  
One Dimensional ◽  
Room Temperature Synthesis ◽  
Electrochemical Supercapacitor ◽  
Symmetric Supercapacitor

Room-temperature synthesis of Cd(OH)2 thin film consisting of high-surface-area nanowires. Device-grade development as a symmetric supercapacitor.

Anatase Mesoporous TiO2 Nanofibers with High Surface Area for Solid-State Dye-Sensitized Solar Cells

Small ◽  
2010 ◽  
Vol 6 (19) ◽  
pp. 2176-2182 ◽  
Author(s):  
Wei Zhang ◽  
Rui Zhu ◽  
Lin Ke ◽  
Xizhe Liu ◽  
Bin Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Dye Sensitized Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Nanofibers ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

MIL-103, A 3-D Lanthanide-Based Metal Organic Framework with Large One-Dimensional Tunnels and A High Surface Area

2005 ◽  
Vol 127 (37) ◽  
pp. 12788-12789 ◽  
Author(s):  
Thomas Devic ◽  
Christian Serre ◽  
Nathalie Audebrand ◽  
Jérôme Marrot ◽  
Gérard Férey
Keyword(s):  
Surface Area ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
One Dimensional ◽  
Metal Organic ◽  
Organic Framework

One-Dimensional Molybdenum Thiochlorides and Their Use in High Surface Area MoSx Chalcogels

2014 ◽  
Vol 26 (17) ◽  
pp. 5151-5160 ◽  
Author(s):  
Saiful M. Islam ◽  
Kota S. Subrahmanyam ◽  
Christos D. Malliakas ◽  
Mercouri G. Kanatzidis
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
One Dimensional

scholarly journals A Semiconductive and Microporous One-Dimensional Tubular Metal-Organic Framework

2020 ◽  
Author(s):  
Mehmet Menaf Ayhan ◽  
Ceyda Bayraktar ◽  
Kai Yu ◽  
Gabriel Hanna ◽  
Ozgur Yazaydin ◽  
...  
Keyword(s):  
Band Gap ◽  
Surface Area ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
One Dimensional ◽  
Metal Organic ◽  
Direct Band ◽  
Indirect Band Gap ◽  
Organic Framework

<p>We report the first one-dimensional tubular metal-organic framework (MOF) [Ni(Cu-H6TPPA)]∙2DMA (H8TPPA = 5,10,15,20-tetrakis[p-phenylphosphonic acid] porphyrin) in the literature. The structure of this MOF, known as GTUB4, was solved using single crystal X-ray diffraction and its surface area was calculated to be 1102 m2/g, making it the phosphonate MOF with the highest reported surface area. GTUB4 also possesses a narrow indirect band gap of 1.9 eV and a direct band gap of 2.16 eV, making it a semiconducting MOF. Thermogravimetric analysis of GTUB4 suggests that it is thermally stable up to 400°C. Owing to its high surface area, low band gap, and thermal stability, GTUB4 could find applications as electrodes in supercapacitors.<br></p>

ChemInform Abstract: One-Dimensional Molybdenum Thiochlorides and Their Use in High Surface Area MoSxChalcogels.

ChemInform ◽  
2014 ◽  
Vol 45 (44) ◽  
pp. no-no
Author(s):  
Saiful M. Islam ◽  
Kota S. Subrahmanyam ◽  
Christos D. Malliakas ◽  
Mercouri G. Kanatzidis
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
One Dimensional
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