Adsorption of CO on bimetallic RhN/Ru(0001) layers

Thussing, Sebastian; Gazdzicki, Pawel; Jakob, Peter M.

doi:10.1016/j.susc.2014.01.002

Cited by 4 publications

(2 citation statements)

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“…In addition, spectroscopic methods such as infrared absorption spectroscopy (IRAS) may qualify as adequate techniques for the study of dilute molecular layers and their phase transitions in a broad temperature range (30–500 K). Vibrational line positions react sensitively to the local environment, that is, the type and number of neighboring species, as well as distances. − In this way, semiquantitative information regarding the prevalence of the various phases of deposited molecular species, e.g., with increasing temperature, becomes available. Additionally, structural information (bonding geometry and/or molecular orientation) can be extracted from the absorption bands in the IR spectra. , …”

Section: Introductionmentioning

confidence: 99%

Lateral Interactions and Order–Disorder Phase Transitions of Metal Phthalocyanines on Ag(111)

et al. 2021

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The intermolecular interaction among phthalocyanine molecules deposited on Ag(111) has been investigated at submonolayer coverages. By means of IRAS and SPA-LEED unambiguous evidence for an attractive interaction between neighboring TiOPc molecules is found for dilute layers, which is in contrast to the intermolecular repulsion reported for the CuPc/Ag(111) system. Accordingly, the formation of dense 2D islands of TiOPc molecules with well-defined long-range order (commensurate phase) is observed upon cooling to temperatures below 75 K while a disordered arrangement is retained for adsorbed CuPc. Using DFT calculations as a guide, these differences have been traced to the competition of attractive van der Waals and repulsive electrostatic interactions. Specifically, the vertically oriented molecular dipoles are substantially smaller for adsorbed TiOPc as compared to CuPc due to a compensation of the oppositely oriented dipole moments arising from the Pauli push-back effect on the one hand and the internal molecular dipole associated with the axial Ti-O group on the other. A detailed account and comparison of the molecule-substrate interaction, molecular binding geometries and intermolecular interactions of TiOPc and CuPc on the Ag(111) surface is provided in a theoretical analysis based on DFT.

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Section: Introductionmentioning

confidence: 99%

Lateral Interactions and Order–Disorder Phase Transitions of Metal Phthalocyanines on Ag(111)

et al. 2021

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“…The research proved to treatment using natural materials such as clays for removing dye pollutants from wastewater has been gaining more attention because of the low-cost of the materials involved and their high specific area, and a variety of surface and structural properties [6,7]. Adsorption is a method of treatment, although adapted to remove a variety of toxic compounds in our environment [8,9]. In the present study, adsorption properties for removal of methyl green (MG) by activated bentonite (AB) clay, from an aqueous solution under varied experimental conditions were investigated.…”

Section: Introductionmentioning

confidence: 99%

Sorptive Removal of Methyl Green from Aqueous Solutions using Activated Bentonite

2017

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Bentonite clay from Maghnia (North West Algeria) has been acid-activated. The activated bentonite was employed as adsorbent for the removal of methyl green from aqueous solutions using adsorption method. The influence of several parameters (kinetics, contact time, sorbent amount, adsorbate concentration and pH) on the adsorption capacity was evaluated and discussed. The Langmuir adsorption model was applied to experimental equilibrium data and the isotherm constant was calculated. The results indicated that the adsorption was favourable at neutral pH. This model provided the best fit to the experimental data with high correlation coefficient (R 2 = 0.996). The monolayer adsorption capacity of activated bentonite found to be 353.33 mg/g. It was seen that pseudo-first order equation describes the adsorption kinetics. The results indicated that this bentonite-type clay is potential to be used as an economical adsorbent for the removal of methyl green dye.

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High Performance Removal of Anionic and Cationic Dye Pollutants with Co3O4 Modified Nanoclinoptilolite: Kinetics and Adsorption Equilibrium Studies

Kakhki

Hedayat

Ahsani

2018

J Inorg Organomet Polym

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Adsorption of CO on bimetallic RhN/Ru(0001) layers

Cited by 4 publications

References 58 publications

Lateral Interactions and Order–Disorder Phase Transitions of Metal Phthalocyanines on Ag(111)

Lateral Interactions and Order–Disorder Phase Transitions of Metal Phthalocyanines on Ag(111)

Sorptive Removal of Methyl Green from Aqueous Solutions using Activated Bentonite

High Performance Removal of Anionic and Cationic Dye Pollutants with Co3O4 Modified Nanoclinoptilolite: Kinetics and Adsorption Equilibrium Studies

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