Insights into hydrogen atom adsorption on and the electrochemical properties of nitrogen-substituted carbon materials

Article Abstract:

The nitrogen substitution in carbon materials is studied using the density functional theory method. It is observed that nitrogen substitution decreases the hydrogen adsorption energy if hydrogen atoms are adsorbed on both nitrogen atoms and the neighboring carbon atoms, but the hydrogen adsorption energy can be increased if hydrogen atoms are adsorbed only on the neighboring carbon atoms.

Nitrogen Compounds, Analysis, Usage, Hydrogen bonding, Hydrogen bonds, Adsorption, Density functionals, Density functional theory, Carbon compounds, Structure

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Controlled doping of transition metal cations in alumina pillared clays

Article Abstract:

A two-step method of loading controlled amounts of transition metal cations into alumina pillared clays (Al-PILCs) is presented. The porosity analysis using N2 adsorption data indicated that most ofthe doped transition metal ions dispersed homogeneously in the micropores of the Al-PILC, significantly affecting the micropore structure.

Aluminum Compounds, Chemical structure

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Effect of transition-metal cations on the adsorption of H2S in modified pillared clays

Article Abstract:

Sodium montmorillonite was intercalated with the Keggin ion (hydroxyaluminium polycation) and calcined at 400 degree Celsius. It is observed that doping of montmorillonite pillared with aluminum oxides with Fe(super 3+), Zn(super 2+), or Cu(super 2+) results in a significant increase in hydrogen sulfide adsorption on the surface.

Sodium, Sodium & Sodium Compounds, Sodium (Chemical element), Chemistry, Physical and theoretical, Physical chemistry, Montmorillonite

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