Question

write the Synthesis of nanomaterials​

Answer 1

Answer:

In the bottom approach, molecular

components arrange themselves into more

complex assemblies atom by atom, molecule

by molecule and cluster by cluster from the

bottom. Example : synthesis of nanoparticles

by colloidal dispersion.

In the top-down approach, nanomaterials

are synthesized from bulk material by breaking

the material. The bulk solids are dis-assembled

into finer pieces until they are constituted of

only few atoms.

Answer 2

Answer:

Nanoparticle Synthesis Bottom-Up approach (or self-assembly approach) Top-Down approach • Bottom up approach refers to the build up of a material from the bottom: atom by atom, molecule by molecule • Atom by atom deposition leads to formation of Self- assembly of atoms/molecules and clusters • These clusters come ...