M.Sc. DEGREE EXAMINATION, APRIL 2016
Second Semester
Nanoscience and Technology
SYNTHESIS OF NANOMATERIALS
(CBCS 2013 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
1. Define ultra high vacuum.
2. What is the role of inert gas?
3. How can we control grain size of nanomaterials?
4. What are micelles?
5. What is meant by 3D nanomaterial?
6. Name any two catalysts for CNTs synthesis.
7. Give any two limitations of ball milling.
8. Define annealing.
9. What is biomineralization?
10. Differentiate phytosynthesis vs.mycosynthesis.
Sub. Code
533201
RW-10852
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Ws7
Part B 5 25)
Answer all questions choosing either or
11. Write short note on RF sputtering.
Or
Explain evaporation techniques in nanomaterials
synthesis briefly.
12. Explain the steps involved in sol-gel synthesis.
Or
Give a short note on template assisted synthesis of
nanomaterials.
13. How can we achieve different structures of
nanomaterials? Explain.
Or
Explain about synthesis of quantum dots by
Schlenky method.
14. Write a brief note on mechanical methods of
nanopowder synthesis.
Or
Give an account on different types of balls used in
high energy ball milling.
15. Explain fungal mediated nanoparticles synthesis in
briefly.
Or
Write an account on herbal synthesis of
nanoparticles.
RW-10852
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Part C 10 30)
Answer any three questions.
16. Discuss in detail on vacuum pumps used in ultra high
vacuum system.
17. Explain in detail on transducers in sonochemical
mediated nanomaterials preparation.
18. Explain carbon nanotubes synthesis in detail.
19. Write in detail on severe plastic deformation in
nanomaterials.
20. Explain about bioproduct mediated nanoparticles
synthesis.