Showing posts with label sodium. Show all posts
Showing posts with label sodium. Show all posts

Nanodots From Pencil Leads

If you want to improve the efficiency of solar cells, use your pencil. Well, the graphite in pencils can now be used to make tiny nanodots. Graphite rods in sodium hydroxide solution produce nanodots which can potentially be used to augment existing solar panels.
Nanodots from pencil leads
The Pencil study involved using pencil "leads" as the cathode and anode, which were dropped into ethanolic sodium hydroxide. Nano particles of 3 nanometers (nm) were produced. Nanodots in a compound with carboxyl and hydroxyl collected on the anode. The nanodots were then drawn into the pores of a titanium and silicon dioxide template.

Other mesoporous materials have been tested. They each have particular properties in regard to sensing, catalysis and optoelectronics. This allows for fine tuning of solar panels. The pencil lead system improved current transfer from simulated sunlight by 38 per cent.
 Chemistry by Ty Buchanan 
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The Reason for the Sodium-Water Explosion is Answered

Many answers have been found for mysterious things in nature. As time moves on most of the reasons why things are have been answered. A few common scientific "happenings" still persist. If sodium is placed in water it explodes. The why has now been identified.

A sodium-water explosion was filmed on high-speed cameras. The flash is caused by sodium hydroxide and hydrogen gases being release when water upsets the balance. Heat creates a point of ignition.

The mystery is that released hydrogen gas should enclose the sodium thus stopping the explosive reaction. Like life itself the answer lies in electricity. All life, such as the nervous system, functions by the flow of electrical current.

When the film of a sodium-water explosion was slowed down electrons (as metal spikes) were seen to jump from sodium into the water. The sodium becomes positive while the water also remains positive because of its mass. Like with magnetism two positive poles repel. It is this that creates the violent explosion. The sodium is destroyed and more electrons leave increasing the contact area with water. This increases the energy of the explosion.
Science by Ty Buchanan
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