Why is counterion release important?
Why is counterion release important?
Counterion release also plays an important role in the adsorption of flexible polyelectrolytes on flat surfaces37 or the formation of complexes of such polyelectrolytes with other rigid macroions;38,39 these scenarios have been reviewed comprehensively, too.
What is counter ion binding?
The valency of a counterion plays, for electrostatic reasons, an important role in the binding process. Addition of a divalent ion leads to the formation of a mixed counterion layer and a decrease in the concentration of monovalent ions at the micelle/ solution surface (6,7).
Do Counterions neutralize pH?
The counterions (acetate) worked as a pH buffer and also as a component of the precursor complexes to the Co3O4 particles.
What is a counterion example?
An ion of opposite charge to a given ion. For example, in a crystal of sodium chloride, the chloride ions can be regarded as counter ions to the sodium ions. In certain colloids, the charge on the surface of colloidal particles is neutralized by oppositely charged counter ions in the surrounding solution.
What is a counterion in chemistry?
A counterion (pronounced as two words, i.e. “counter” “ion”, and sometimes written as two words) is the ion that accompanies an ionic species in order to maintain electric neutrality.
Is a counterion an ionic compound?
What are free ions?
[¦frē ′ī‚än] (physical chemistry) An ion, such as found in an ionized gas, whose properties, such as spectrum and magnetic moment, are not significantly affected by other atoms, ions, or molecules nearby.
Where do ions come from?
Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the …
Is Salt an ion?
Salt is an ionic compound, consisting of a crystal, lattice structure of the two ions Na+ and Cl-.
What do ions do?
An ion is a charged atom or molecule. It is charged because the number of electrons do not equal the number of protons in the atom or molecule. An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.
Who discovered ions?
Michael Faraday
This term was introduced (after a suggestion by the English polymath William Whewell) by English physicist and chemist Michael Faraday in 1834 for the then-unknown species that goes from one electrode to the other through an aqueous medium.