Thanks for your reply.
I believe they are not specifically 'colloids' as such but rather the particle structures formed are 'clusters of atoms', resulting in a more crystal like structure and termed, possibly incorrectly in this context, as 'colloids'. I'm not sure if a true colloid exists at the nanoscale created by electrolysis, 'colloid' in this context may be more a term of convenience praps.
That being said, as ions are positively charged they are in constant motion by mutual repulsion {Zeta potential} but, as they move with considerable velocity while in solution some tend to collide with each other and break through the 'slipping plane' hence the collisions I speak of, and this action results in the formation of those crystaline structures.
I probly misquoted when I mentioned 'friction', the only 'friction?' activity would be when an ion breaks through the slipping plane causing it to adhere to another ion. It's that 'colliding' activity which prompted me ask the question regarding heat during the process of colliding. The force in which these collisions occur, or the force which is required for ions to 'adhere' to each other as a result of breaking through that 'slipping plane' encouraged me to think that some degree of heat would be evident in such an event. This is basically what I'm trying to determine.
Picking up on your 'energy' aspect, would this action of collision not be seen as 'energy'? ie; energy required by way of velocity of one ion to break through the slipping plane of another causing adhesion of that ion to the other, this then makes the original ion neutral in electrical charge and allows any/all other ions to have a clear pathway to enable that 'particle?' to become larger. This of course is happening throughout the solution many times over, and at nanoscale, but seemingly only until a point of stabilization in solution has been attained. This process of stabilization would determine an ionic solution over a more particulate solution, and by particulate I refer to atomic clusters {particles} as opposed to true colloidal particles. If one considers this collision occurring, and multiplying that many times over in the solution, would that not have *some?* temperature effect on the solution, or on the localised particle structure created?
You'll have to excuse my somewhat inadequate methods of explanation and enquiry, and praps my lack of chemistry knowledge makes my query null and void.