Surface Functionalization of Silicon Oxide at Room Temperature and Atmospheric Pressure

2002 ◽  
Vol 254 (1) ◽  
pp. 200-203 ◽  
Author(s):  
Elisabeth Pavlovic ◽  
Arjan P. Quist ◽  
Ulrik Gelius ◽  
Sven Oscarsson
2011 ◽  
Vol 11 (4) ◽  
pp. 2851-2855 ◽  
Author(s):  
Kei Nakamura ◽  
Yoshihito Yamaguchi ◽  
Keiji Yokoyama ◽  
Kosuke Higashida ◽  
Hiromasa Ohmi ◽  
...  

1999 ◽  
Vol 567 ◽  
Author(s):  
Kunihiko Koike ◽  
Goichi Inoue ◽  
Shingo Ichimura ◽  
Ken Nakamura ◽  
Akira Kurokawa ◽  
...  

ABSTRACTA high-concentration ozone generator operating at atmospheric pressure has been developed for fabrication of ultra thin silicon oxide films. The generator can supply atmospheric pressure of ozone jet with ozone concentration up to 80 vol%. The ozone jet is generated by desorbing ozone at nearbyn room temperature, which has been condensed on silica-gel by passing ozone/oxygen mixture gas from a commercial ozonizer at a low temperature (<-50°C); at the temperature ozone is more selectively adsorbed on silica-gel than oxygen. The high purity ozone jet with a concentration of 25 vol% at a pressure of 1 × 105 Pa had so large oxidation power that SiO2 film as thick as 3.3 nm grew on a Si surface after 60 min exposure at 375°C. The density of the film was equivalent to that of the film formed by a conventional thermal oxidation process, judging from etching rate with dilute HF solution.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jacek Malinowski ◽  
Dagmara Jacewicz ◽  
Artur Sikorski ◽  
Mariusz Urbaniak ◽  
Przemysław Rybiński ◽  
...  

AbstractThe contemporary search for new catalysts for olefin oligomerization and polymerization is based on the study of coordinating compounds and/or organometallic compounds as post-metallocene catalysts. However known catalysts are suffered by many flaws, among others unsatisfactory activity, requirement of high pressure or instability at high temperatures. In this paper, we present a new catalyst i.e. the crystalline complex compound possesing high catalytic activity in the oligomerization of olefins, such as 2-chloro-2-propen-1-ol and ethylene under very mild conditions (room temperature, 0.12 bar for ethylene oligomerization, atmospheric pressure for 2-chloro-2-propen-1-ol oligomerization). New material—Cat-CrNP ([nitrilotriacetato-1,10-phenanthroline]chromium(III) tetrahydrate) has been obtained as crystalline form of the nitrilotriacetate complex compound of chromium(III) with 1,10-phenanthroline and characterized in terms of its crystal structure by the XRD method and by multi-analytical investigations towards its physicochemical propeties The yield of catalytic oligomerization over Cat-CrNP reached to 213.92 g · mmol−1 · h−1· bar−1 and 3232 g · mmol−1 · h−1 · bar−1 for the 2-chloro-2-propen-1-ol and ethylene, respectively. Furthemore, the synthesis of Cat-CrNP is cheap, easy to perform and solvents used during preparation are environmentally friendly.


2012 ◽  
Vol 51 (1) ◽  
pp. 01AJ04 ◽  
Author(s):  
Waleepan Sangprasert ◽  
Piyarat Nimmanpipug ◽  
Piriya Yavirach ◽  
Vannajan Sanghiran Lee ◽  
Dheerawan Boonyawan

2014 ◽  
Vol 47 (44) ◽  
pp. 445402 ◽  
Author(s):  
Taichi Miura ◽  
Ayumi Ando ◽  
Kazumi Hirano ◽  
Chika Ogura ◽  
Tatsuya Kanazawa ◽  
...  

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