Ozone formation by gaseous corona discharge generated above aqueous solution

2004 ◽  
Vol 54 (S3) ◽  
pp. C908-C913 ◽  
Author(s):  
P. Lukeš ◽  
M. Člupek ◽  
V. Babický ◽  
P. Šunka
Keyword(s):  
Aqueous Solution ◽  
Corona Discharge ◽  
Ozone Formation

scholarly journals Reductive deposition of Au3+(aq) on oxidized silicon surfaces

2000 ◽  
Vol 78 (4) ◽  
pp. 516-519 ◽  
Author(s):  
Sefik Süzer ◽  
Ömer Dag
Keyword(s):  
Aqueous Solution ◽  
Corona Discharge ◽  
Oxidation State ◽  
Photoelectron Spectroscopy ◽  
Silicon Surface ◽  
Electroless Deposition ◽  
Reduction Potential ◽  
Gold Deposits ◽  
Silicon Surfaces ◽  
X Ray

X-ray photoelectron spectroscopy (XPS) is used to determine the oxidation state of gold deposited from an aqueous solution of AuCl4- on to various oxidized surfaces of silicon. Although the observed Au4f signal decreased with the thickness of the oxide layer, the oxidation state of Au was determined as 0 for all the samples analyzed. From the angular dependence of the Si2p and Au4f signals it was determined that Au is deposited on top of the oxidized surfaces of metallic silicon. It is postulated that from an aqueous solution of AuCl4-, gold would deposit in its zerovalent form on to any surface due to its large and positive electrochemical reduction potential (ε°red(Au3+ /Au) = +1.50 V) and the substrate plays a role only in providing active deposition sites. To further support the proposal, it is shown that the same process takes place even in inert and hydrophobic polypropylene substrates. Similarly, it is also shown that more gold deposits if the surface of the polypropylene is made less hydrophobic (but probably more active) via the industrially used corona discharge treatment.Key words: XPS, gold, electroless deposition, oxidized silicon surface.

Degradation of pharmaceutical contaminant ibuprofen in aqueous solution by cylindrical wetted-wall corona discharge

2015 ◽  
Vol 267 ◽  
pp. 282-288 ◽  
Author(s):  
Jinhui Zeng ◽  
Bin Yang ◽  
Xiaoping Wang ◽  
Zhongjian Li ◽  
Xingwang Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Corona Discharge

Promotion of crystal growth rate in aqueous solution by direct contact with gas corona discharge

2004 ◽  
Vol 39 (4) ◽  
pp. 291-296 ◽  
Author(s):  
Kouji Maeda ◽  
Noriaki Sano ◽  
Akira Sonoda ◽  
Keisuke Fukui
Keyword(s):  
Aqueous Solution ◽  
Growth Rate ◽  
Crystal Growth ◽  
Corona Discharge ◽  
Direct Contact ◽  
Crystal Growth Rate

scholarly journals Degradation of Perfluorosurfactant in Aqueous Solution using Non-thermal Plasma Generated by Nano-second pulse Corona Discharge Reactor

2021 ◽  
pp. 103366
Author(s):  
Kosar Hikmat Hama Aziz ◽  
Hans Miessner ◽  
Ali Mahyar ◽  
Siegfried Mueller ◽  
Detlev Moeller ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Corona Discharge ◽  
Thermal Plasma ◽  
Pulse Corona ◽  
Pulse Corona Discharge ◽  
Non Thermal Plasma
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