High-loading Ga-exchanged MFI zeolites as selective and coke-resistant catalysts for nonoxidative ethane dehydrogenation

2022 ◽  
Author(s):  
Mengwen Huang ◽  
Shunsaku Yasumura ◽  
Lingcong Li ◽  
Takashi Toyao ◽  
Zen Maeno ◽  
...  
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Treatment Temperature ◽  
High Loading ◽  
Ethane Dehydrogenation ◽  
Ion Exchange Reaction ◽  
Loading Amount ◽  
Mfi Zeolites

In this paper, we investigated the effects of Ga loading amount and H2 treatment temperature for reductive solid-state ion-exchange reaction on the generated Ga species in Ga-exchanged MFI zeolites (Ga-MFIs)...

Top-down fabrication of Ti doped BiVO4 nanosheets for efficient water oxidation under visible light

2021 ◽  
Author(s):  
Bei Peng ◽  
Yawen Shi ◽  
Xin Zhang ◽  
Peiwen Lv
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Visible Light ◽  
Exchange Reaction ◽  
Solid State Reaction ◽  
Water Oxidation ◽  
Photocatalytic Properties ◽  
Top Down ◽  
Ion Exchange Reaction

BiVO4 is one of the fascinating materials with excellent photocatalytic properties. A top-down approach composed of solid state reaction and ion exchange reaction is introduced to fabricate Ti doped BiVO4...

Carbonation of High-Temperature Calcined Hydroxyapatite by Solid-Ion-Exchange Reaction

2010 ◽  
Vol 152-153 ◽  
pp. 1645-1649
Author(s):  
Qing Xia Zhu ◽  
Wei Hui Jiang ◽  
Qiong Qiong Xu
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Treatment Time ◽  
Treatment Temperature ◽  
Carbonate Content ◽  
X Ray Diffraction ◽  
Ion Exchange Reaction ◽  
Carbonate Substitution ◽  
Atmosphere Temperature ◽  
Co2 Atmosphere

Carbonated hydroxyapatite (CHA) was synthesized by solid-ion-exchange reaction of hydroxyapatite (HA) powders in CO2 atmosphere. The effects of the treatment atmosphere, temperature and time on carbonate substitution were investigated. The phase composition of the powders were characterized by X-ray diffraction and the content and type of the carbonate substitution were studied using Carbon-sulfur elemental analysis and Fourier transform infrared spectroscopy, respectively. The results show that the carbonate ion can enter the HA crystal lattice to form CHA giving priority to A-type by controlling the treatment temperature, atmosphere and time. Wet atmosphere treatment favors the reconstitution of hydroxyl and treatment in dry CO2 atmosphere favors the formation of A-Type substitution. The appropriate reaction temperature is 900 . Carbonate content increases with the treatment time and a further extension of treatment time tends to a slower increase of carbonate content.

Li+ conducting garnet-type oxide sintering triggered by an H+/Li+ ion-exchange reaction

2020 ◽  
Vol 8 (18) ◽  
pp. 8989-8996 ◽  
Author(s):  
Shingo Ohta ◽  
Masatsugu Kawakami ◽  
Hiroshi Nozaki ◽  
Chihiro Yada ◽  
Toshiya Saito ◽  
...  
Keyword(s):  
Solid State ◽  
Low Temperature ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Low Temperature Sintering ◽  
Ion Exchange Reaction ◽  
Li Ion

We demonstrate the fabrication of a solid state Li/Li7La3Zr2O12/Li(Ni1/3Co1/3Mn1/3)O2 battery at a remarkably low temperature (400 °C) using low temperature sintering triggered by an ion-exchange reaction.

Synthesis of Stoichiometric and Bulk CrN through a Solid-State Ion-Exchange Reaction

2012 ◽  
Vol 18 (48) ◽  
pp. 15459-15463 ◽  
Author(s):  
Miao Chen ◽  
Shanmin Wang ◽  
Jianzhong Zhang ◽  
Duanwei He ◽  
Yusheng Zhao
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Ion Exchange Reaction

ChemInform Abstract: Synthesis of Stoichiometric and Bulk CrN Through a Solid-State Ion-Exchange Reaction.

ChemInform ◽  
2013 ◽  
Vol 44 (13) ◽  
pp. no-no
Author(s):  
Miao Chen ◽  
Shanmin Wang ◽  
Jianzhong Zhang ◽  
Duanwei He ◽  
Yusheng Zhao
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Ion Exchange Reaction

Photoassisted Production of O2-• and H2 in Aqueous Medium Stimulated by Polythiophene in ZSM-5 Zeolite Channels

1999 ◽  
Vol 64 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Gabriel Čík ◽  
František Šeršeň ◽  
Alena Bumbálová
Keyword(s):  
Reactive Oxygen Species ◽  
Ion Exchange ◽  
Visible Light ◽  
Aqueous Medium ◽  
Exchange Reaction ◽  
Epr Spectroscopy ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Water Reduction ◽  
Ion Exchange Reaction

The formation of reactive oxygen species due to irradiation by a visible light of the polythiophene deposited in ZSM-5 zeolite channels in aqueous medium has been studied. Polymerization of thiophene was carried out in zeolite channels after the ion-exchange reaction of Na+ for Fe3+. By means of EPR spectroscopy, the temporarily generated 1O2 in irradiated aqueous medium was proved. The formation of O2-• was confirmed by the reduction of Fe3+-cytochrome c. Irradiation led to the water reduction to hydrogen.

Insight into the enhanced photocatalytic properties of AgBr/Ag4P2O7 composites synthesized via in situ ion exchange reaction

2021 ◽  
Vol 9 (1) ◽  
pp. 104889
Author(s):  
Wyllamanney da S. Pereira ◽  
Fabrício B. Destro ◽  
Cipriano B. Gozzo ◽  
Edson R. Leite ◽  
Júlio C. Sczancoski
Keyword(s):  
Ion Exchange ◽  
Exchange Reaction ◽  
Photocatalytic Properties ◽  
Ion Exchange Reaction ◽  
Insight Into
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