An Efficient Catalyst for Low Temperature Solid-phase Cyclization of Poly(o-hydroxyamide)

2004 ◽  
Vol 33 (10) ◽  
pp. 1342-1343 ◽  
Author(s):  
Fumihiro Toyokawa ◽  
Ken-ichi Fukukawa ◽  
Yuji Shibasaki ◽  
Mitsuru Ueda
Keyword(s):  
Low Temperature ◽  
Solid Phase ◽  
Efficient Catalyst

Efficient Catalyst for Low Temperature Solid-Phase Imidization of Poly(amic acid)

2004 ◽  
Vol 33 (9) ◽  
pp. 1156-1157 ◽  
Author(s):  
Ken-ichi Fukukawa ◽  
Yuji Shibasaki ◽  
Mitsuru Ueda
Keyword(s):  
Low Temperature ◽  
Solid Phase ◽  
Amic Acid ◽  
Efficient Catalyst

A 9.5-in. 1.3-Mpixel low-temperature poly-Si TFT-LCD fabricated by solid-phase crystallization of very thin films and an ECR-CVD gate insulator

1993 ◽  
Vol 1 (2) ◽  
pp. 203 ◽  
Author(s):  
Thomas W. Little ◽  
Hideki Koike ◽  
Ken-ichi Takahara ◽  
Takashi Nakazawa ◽  
Hiroyuki Ohshima
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Solid Phase ◽  
Gate Insulator ◽  
Solid Phase Crystallization

scholarly journals Low-Temperature Esterification to Produce Oleic Acid-Based Wax Esters Catalyzed by 4-Dodecylbenzenesulfonic Acid

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1471
Author(s):  
Zhenzhen Li ◽  
Wei Liu ◽  
Guolong Yang
Keyword(s):  
Oleic Acid ◽  
Low Temperature ◽  
Inhibitory Effect ◽  
Wax Esters ◽  
Molar Ratio ◽  
Efficient Catalyst ◽  
Dodecylbenzenesulfonic Acid ◽  
Effect Of Water ◽  
Solvent Free Conditions ◽  
Increasing Temperature

Synthesized oleic acid-based wax esters (e.g., cetyl oleate), which can replace spermaceti oil or jojoba oil, have been widely used in the cosmetic, pharmaceutical and other industries. In this work, 4-dodecylbenzenesulfonic acid (DBSA) has been successfully used as an efficient catalyst to synthesize oleic acid-based wax esters through esterification at 40 °C under solvent-free conditions. A 93.6% conversion rate of cetyl alcohol was obtained under optimal conditions: 10 mol% DBSA, a molar ratio of 1.3:1 oleic acid to alcohol, a reaction temperature 40 °C and a reaction time of 4 h. The effect of water content on esterification was investigated, and it was found that the inhibitory effect of water decreased significantly with increasing temperature. Moreover, DBSA-catalyzed esterification could be applied in the production of various oleic acid-based wax esters and excellent conversion (>90%) to esters was obtained under such mild conditions. DBSA-catalyzed low-temperature esterification is an efficient method for the production of liquid wax esters.

Dragon fruit-like Pt-Cu@mSiO2 nanocomposite as an efficient catalyst for low-temperature ethanol steam reforming

2020 ◽  
Vol 379 ◽  
pp. 122299 ◽  
Author(s):  
Rong Dai ◽  
Ziliang Zheng ◽  
Wenjun Yan ◽  
Chenshuai Lian ◽  
Xu Wu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Efficient Catalyst ◽  
Dragon Fruit ◽  
Ethanol Steam

Low-temperature catalytic oxidation of aniline to azoxybenzene over an Ag/Fe2O3 nanoparticle catalyst using H2O2 as an oxidant

2019 ◽  
Vol 43 (23) ◽  
pp. 8911-8918 ◽  
Author(s):  
Bappi Paul ◽  
Sachin K. Sharma ◽  
Shubhadeep Adak ◽  
Rubina Khatun ◽  
Gurmeet Singh ◽  
...  
Keyword(s):  
Low Temperature ◽  
Catalytic Oxidation ◽  
One Pot ◽  
Efficient Catalyst ◽  
Highly Dispersed ◽  
Fe2o3 Nanoparticle ◽  
Nanoparticle Catalyst

Highly dispersed Ag-supported α-Fe2O3 is found to be a recyclable and efficient catalyst for one-pot conversion of aniline to azoxybenzene.

Solid-phase formation of transistor emitters at low temperature

1972 ◽  
Vol 60 (8) ◽  
pp. 1018-1018 ◽  
Author(s):  
A.M. Fern ◽  
J.O. McCaldin
Keyword(s):  
Low Temperature ◽  
Phase Formation ◽  
Solid Phase
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