Identify the last step in wet chemical synthesis of nanomaterial.
Identify the last step in wet chemical synthesis of nanomaterial.
Formation of oxide or alcohol-bridged network
Dehydration
Aging of the gel
Drying of the gel
Solution
1. Formation of the different stable solution of the alkoxide or solvated metal precursor.
2. Gelation resulting from the formation of an oxide or alcohol bridged network (gel) by a polycondensation reaction.
3. Aging of the gel means during that period gel transforms into a solid mass.
4. Drying of the gel: In this step, water and other volatile liquids are removed from the gel network.
5. Dehydration: The material is heated at temperatures up to \(800^{\circ} \mathrm{C}\).