Fabrication and Characterization of Er3+ -Doped Tellurite Glass Waveguides by Ag+ -Na+ Ion-Exchange Method Using a Dry Electromigration Process

2012 ◽  
pp. 201-207
Author(s):  
S. Sakida ◽  
K. kimura ◽  
Y Benino ◽  
T. Nanba
Keyword(s):  
Ion Exchange ◽  
Tellurite Glass ◽  
Exchange Method ◽  
Glass Waveguides ◽  
Ion Exchange Method ◽  
Fabrication And Characterization

scholarly journals Incorporation of silver (I) ions within zeolite cavities and their photocatalytic reactivity for the decomposition ofN2OintoN2andO2

2003 ◽  
Vol 5 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Woo-Sung Ju ◽  
Masaya Matsuoka ◽  
Masakazu Anpo
Keyword(s):  
Ion Exchange ◽  
Uv Light ◽  
Photocatalytic Decomposition ◽  
Effective Wavelength ◽  
In Situ Characterization ◽  
Exchange Method ◽  
Ft Ir ◽  
Ion Exchange Method

Ag+/ZSM-5 catalysts were prepared by an ion-exchange method. UV-irradiation of theAg+/ZSM-5 catalysts in the presence ofN2Oled to the photocatalytic decomposition ofN2OintoN2andO2at 298 K. Investigations of the effective wavelength of the irradiated UV-light for the reaction as well as the in-situ characterization of the catalysts by means of UV-Vis, photoluminescence and FT-IR spectroscopies revealed that the photoexcitation of theAg+−N2Ocomplexes formed between gaseousN2Oand the isolatedAg+ions exchanged within the zeolite cavities plays a significant role in the reaction.

Preparation and characterization of nano-ZnO flakes prepared by reactive ion exchange method

2008 ◽  
Vol 95 (2) ◽  
pp. 671-674 ◽  
Author(s):  
Y. S. Li ◽  
G. Li ◽  
S. X. Wang ◽  
H. Gao ◽  
Z. C. Tan
Keyword(s):  
Ion Exchange ◽  
Exchange Method ◽  
Nano Zno ◽  
Ion Exchange Method

Application of the channel optical waveguide prepared by ion exchange method to the preparation and characterization of an optical oxygen gas sensor

2005 ◽  
Vol 105 (2) ◽  
pp. 214-218 ◽  
Author(s):  
Chae-Hwan Jeong ◽  
Jae-Sung Kim ◽  
Won-Hyo Kim ◽  
Jong-Ha Moon ◽  
Byung-Teak Lee ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Gas Sensor ◽  
Optical Waveguide ◽  
Exchange Method ◽  
Oxygen Gas ◽  
Ion Exchange Method

Characterization of Modified HZSM–5 with Gallium and its Reactivity in Direct Conversion of Methane to Liquid Hydrocarbons

2012 ◽  
Author(s):  
Nor Aishah Saidina Amin ◽  
Asmadi Ali
Keyword(s):  
Catalytic Activity ◽  
Ion Exchange ◽  
Zeolite Catalyst ◽  
Nitrogen Adsorption ◽  
Direct Conversion ◽  
Liquid Hydrocarbons ◽  
Exchange Method ◽  
Conversion Of Methane ◽  
Ion Exchange Method

Mangkin zeolit HZSM–5 diubahsuai secara kaedah pertukaran ion berasid bagi menghasilkan mangkin zeolit Ga–HZSM–5. Aktiviti bermangkin bagi HZSM–5 dan Ga–HZSM–5 dikaji pada suhu tindak balas 800°C dan halaju ruang jaman masa (GHSV) 7500 jam–1. Mangkin HZSM–5 dan Ga–HZSM–5 dicirikan secara XRD, NMR, Penjerapan Nitrogen dan TPD. Hasil pencirian menunjukkan aluminium keluar dari kerangka asal. HZSM–5 yang mengandungi galium adalah mangkin yang lebih baik daripada mangkin zeolit HZSM–5 bagi menghasilkan cecair hidrokarbon. Kata kunci: Ga-HZSM-5; metana; pertukaran ion berasid; cecair hidrokarbon The HZSM–5 zeolite catalyst was modified by an acidic ion exchange method to produce the Ga–HZSM–5 zeolite catalyst. The catalytic activity of HZSM–5 and Ga–HZSM–5 were studied at reaction temperature of 800°C and gas hourly space velocities (GHSV) of 7500 hr–1. HZSM–5 and Ga–HZSM–5 catalysts were characterized by XRD, NMR, Nitrogen Adsorption and TPD. The characterization results revealed that aluminium was removed from the parent framework. Gallium loaded HZSM–5 is a better catalyst than HZSM–5 zeolite catalyst to produce liquid hydrocarbons. Key words: Ga-HZSM-5; methane; acidic ion exchange; liquid hydrocarbons

Modified double ion-exchange method for the fabrication of phase gratings in glass waveguides

1994 ◽  
Author(s):  
Jyrki Saarinen ◽  
Seppo Honkanen ◽  
Guang-Wen Zhang ◽  
S. Iraj Najafi
Keyword(s):  
Ion Exchange ◽  
Exchange Method ◽  
Glass Waveguides ◽  
Ion Exchange Method
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