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Standard molar entropy
About: Standard molar entropy is a research topic. Over the lifetime, 1586 publications have been published within this topic receiving 29886 citations.
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TL;DR: In this paper, a core-shell covalently functionalized Fe 3 O 4 coated SiO 2 decorated multi-walled carbon nanotubes was synthesized and characterized by scanning electron microscopy.
71 citations
TL;DR: In this article, a hysteresis loop was observed for sorbate loadings greater than 4 molecules per u.c. The isosteric heat of adsorption was ~ 80 kJ mol−1, and the differential molar entropy indicated an increase in ordering of the sorbed phase with increasing coverage.
71 citations
71 citations
TL;DR: In this paper, the adsorption kinetics and thermodynamics of Pb(II), Cd(II) and Cu(II)-I ions in aqueous solutions on single-walled carbon nanotube (SWCNTs) and carboxylate group functionalized singlewalled single-wired carbon nanotide (CNT-COOH) surfaces were by atomic absorption spectroscopy.
Abstract: The studies of kinetics and thermodynamics of adsorption of Pb(II), Cd(II) and Cu(II) ions in aqueous solutions on single-walled carbon nanotube (SWCNTs) and carboxylate group functionalized single-walled carbon nanotube (SWCNT-COOH) surfaces were by atomic absorption spectroscopy. The adsorption kinetics was well described by a pseudo-second-order rate model, while Langmuir, Freundlich, Redlich-Peterson (R-P) and Tempkin isotherms described the adsorption isotherms, and the adsorption thermodynamic parameters of equilibrium constant (K0), standard free energy (ΔG0), standard enthalpy (ΔH0) and standard entropy changes (ΔS0) were measured. The adsorption of Pb(II), Cd(II) and Cu(II) ions from aqueous solutions on SWCNTs and SWCNT-COOH. The values of ΔH0 and ΔG0 suggested that the adsorption of mentioned ions on SWCNT-COOH and SWCNT were endothermic and spontaneous. The adsorption of mentioned ions on SWCNT-COOH is more than SWCNTs surfaces.
70 citations
TL;DR: In this paper, the desorption energy, Ed, and the preexponential factor, ν, for hydrogen from W(100) were determined as a function of coverage, θ, from a series of isobars.
70 citations