Kinetics of Solute Adsorption at Solid/Solution Interfaces: On the Special Features of the Initial Adsorption Kinetics

Langmuir ◽  
2008 ◽  
Vol 24 (13) ◽  
pp. 6738-6744 ◽  
Author(s):  
Władysław Rudzinski ◽  
Wojciech Plazinski
Keyword(s):  
Solid Solution ◽  
Adsorption Kinetics ◽  
Solute Adsorption ◽  
Initial Adsorption ◽  
Kinetics Of

Initial adsorption kinetics of oxygen on polycrystalline copper

1987 ◽  
Vol 185 (3) ◽  
pp. A253
Author(s):  
M.H. Mintz ◽  
U. Atzmony ◽  
N. Shamir
Keyword(s):  
Adsorption Kinetics ◽  
Polycrystalline Copper ◽  
Initial Adsorption ◽  
Kinetics Of

Initial adsorption kinetics of oxygen on polycrystalline copper

1987 ◽  
Vol 185 (3) ◽  
pp. 413-430 ◽  
Author(s):  
M.H. Mintz ◽  
U. Atzmony ◽  
N. Shamir
Keyword(s):  
Adsorption Kinetics ◽  
Polycrystalline Copper ◽  
Initial Adsorption ◽  
Kinetics Of

Adsorption Kinetics of Cr (VI) onto Strong Alkaline Anion Exchange Fiber from Aqueous Solutions

2012 ◽  
Vol 476-478 ◽  
pp. 1327-1330 ◽  
Author(s):  
Wen Qing Wang ◽  
Ming Yu Li ◽  
Qing Xuan Zeng
Keyword(s):  
Aqueous Solutions ◽  
Anion Exchange ◽  
Adsorption Kinetics ◽  
Initial Concentration ◽  
Combined Control ◽  
Intra Particle Diffusion ◽  
Initial Adsorption ◽  
Initial Adsorption Rate ◽  
Kinetics Of ◽  
Good Agreement

The adsorption kinetics of strong alkaline anion exchange fiber for Cr (VI) from aqueous solutions was investigated. The adsorption was a fast process. Kinetics data for adsorption of Cr (VI) from aqueous solutions were in good agreement with the pseudo-second rate equation within an initial concentration range of 50-500 mgL-1. Both the equilibrium capacity and initial adsorption rate increased with an increase in Cr (VI) initial concentration. The adsorption process had combined control by chemisorption and physisorption, including film diffusion and intra-particle diffusion.

scholarly journals Oxidation behavior of non-stoichiometric (Zr,Hf,Ti)Cx carbide solid solution powders in air

2021 ◽  
Author(s):  
Huilin Lun ◽  
Yi Zeng ◽  
Xiang Xiong ◽  
Ziming Ye ◽  
Zhongwei Zhang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Oxidation Resistance ◽  
Oxidation Behavior ◽  
Group Iv ◽  
Hypersonic Vehicles ◽  
Metal Carbides ◽  
Initial Oxidation ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Kinetics Of

AbstractMulti-component solid solutions with non-stoichiometric compositions are characteristics of ultra-high temperature carbides as promising materials for hypersonic vehicles. However, for group IV transition-metal carbides, the oxidation behavior of multi-component non-stoichiometric (Zr,Hf,Ti)Cx carbide solid solution has not been clarified yet. The present work fabricated four kinds of (Zr,Hf,Ti)Cx carbide solid solution powders by free-pressureless spark plasma sintering to investigate the oxidation behavior of (Zr,Hf,Ti)Cx in air. The effects of metallic atom composition on oxidation resistance were examined. The results indicate that the oxidation kinetics of (Zr,Hf,Ti)Cx are composition dependent. A high Hf content in (Zr,Hf,Ti)Cx was beneficial to form an amorphous Zr-Hf-Ti-C-O oxycarbide layer as an oxygen barrier to enhance the initial oxidation resistance. Meanwhile, an equiatomic ratio of metallic atoms reduced the growth rate of (Zr,Hf,Ti)O2 oxide, increasing its phase stability at high temperatures, which improved the oxidation activation energy of (Zr, Hf, Ti)Cx.

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