The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
Introduction
Nanoparticle characterization techniques
Electron Microscope
Scanning electron microscope
Transmission electron Microscope
X-ray powder diffraction
Nuclear Magnetic Resonance
It's simple to understand the synthesis. Hydrothermal method is a chemical reaction in water in a sealed pressure vessel, which is in fact a type of reaction at both high temperature and pressure.
here you can find the most rare topics in detail
all fields of chemistry are deeply understood here for presenting the lectures
stay blessed and keep supporting
The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
Introduction
Nanoparticle characterization techniques
Electron Microscope
Scanning electron microscope
Transmission electron Microscope
X-ray powder diffraction
Nuclear Magnetic Resonance
It's simple to understand the synthesis. Hydrothermal method is a chemical reaction in water in a sealed pressure vessel, which is in fact a type of reaction at both high temperature and pressure.
here you can find the most rare topics in detail
all fields of chemistry are deeply understood here for presenting the lectures
stay blessed and keep supporting
The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
hey guyz this is the presentation iv made in my last year of engineering and got very nice feedbacks. my topic was oled(organic light emitting diodes).. iv given all its highlited informations with pictures
Used In Automotive Electronics And Most of the New Trending Cars And Vehicles
Carbon nanotubes (CNTs) are tubular cylinders of carbon atoms that have extraordinary mechanical, electrical, thermal, optical and chemical properties At the individual tube level, these unique structures exhibit: 200X the strength and 5X the elasticity of steel; 5X the electrical conductivity ("ballistic transport"), ...
Carbon Nano tubes and its Applications in the Field of Electronics and Comput...ijsrd.com
With rapid advancement of technology and unlimited quest in the intricate fields of science led man to confront nano tubes. It consists of C60 Fullerenes with tube like structures capped at both ends delivering extraordinary mechanical and electrical properties. It is hard to stress as extremely low turn on for fields and has high current densities. It is also the best emission field emitter for future field emission displays. Can be extensively used for fuel cells and field emission display. We throw a light on the research on nano tubes and it's general applications. In this paper we are focusing and questioning the field of research to ponder for the betterment off life to nano tube.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
2. 1. WHAT IS A CARBON NANOTUBE ?
2. DISCOVERY OF CARBON NANOTUBES.
3. TYPES OF CARBON NANOTUBES.
4. PROPERTIES OF CARBON NANOTUBES.
5. PROBLEMS RELATED TO CARBON NANOTUBES.
6. SYNTHESIS OF CARBON NANOTUBES.
7. POTENTIAL APPLICATION OF CNT.
3. #A Carbon Nanotube is a tube-shaped material, made of carbon, having a
diameter measuring on the nanometre scale.
#Carbon Nanotubes are formed from essentially the graphite sheet and the
graphite layer appears somewhat like a rolled-up continuous unbroken
hexagonal mesh and carbon molecules at the apexes of the hexagons.
#Nanotubes are members of the fullerene structural family.
#Their name is derived from their long, hollow structure with the walls
formed by one atom thick sheets of carbon, called graphene.
4. #1952
Radushkevich and Lukyanovich publish a paper in the Soviet Journal
of Physical Chemistry showing hollow graphitic carbon fibers that are
50 nanometers in diameter.
#1979
John Abrahamson presented evidence of carbon nanotubes at the 14th
Biennial Conference of Carbon at Pennsylvania State University.
#1981
A group of Soviet scientists published the results of chemical and
structural characterization of carbon nanoparticles produced by a
thermocatalytical disproportionation of carbon monoxide.
#1991
Nanotubes discovered in the soot of arc discharge at NEC, by Japanese
researcher Sumio Iijima.
5. Classified mainly in two types:
1. SINGLE WALLED NANOTUBES
2. MULTI WALLED NANOTUBES
OTHER RELATED STRUCTURES:
#TORUS
#NANOBUD
#GRAPHENATED CARBON NANOTUBES (g-CNTS)
#NITROGEN DOPED CARBON NANOTUBES (N-CNTS)
#PEAPOD
#CUP-STACKED CARBON NANOTUBES
6. Diameter :- 1 nanometer
Band gap :- 0-2ev
A one atom thick layer of graphene
into seamless cylinder .
Their electrical conductivity can
show metallic or semiconducting
behaviour.
A scanning tunnelling microscopy image of SWNT
7. Multi-walled nanotubes (MWNT) consist
of multiple rolled layers (concentric tubes)
of graphene.
Interlayer distance :- 3.4 Å
To describe structure of MWNT there are
two models:-
1. Russian doll model
2. Parchment model
8. TORUS:-
It is a carbon nanotube bent in a torus
shape (i.e. doughnut shape)
NANOBUD :-
Carbon Nanobud are created combining
carbon nanotubes and fullerenes.
9. GRAPHENATED CARBON NANOTUBE :-
They are new hybrids that combines graphitic foliates grown along the
sidewalls of MWNT.
NITROGEN DOPED CARBON NANOTUBE :-
These are used for enhancing storage capacity of Li-ion batteries.
N-doping provides defects in the walls of CNT's allowing for Li ions to
diffuse into inter-wall space.
10. Peapod :-
A carbon peapod is a novel hybrid carbon material
which traps fullerene inside a Carbon nanotube.
CUP-STACKED CARBON
NANOTUBES :-
CSCNTs exhibit semiconducting behaviours due to
the stacking microstructure of graphene layers.
11. Strength :-
Carbon nanotubes are the strongest, flexible and stiffest materials yet discovered in terms
of tensile strength and elastic modulus respectively.
Hardness :-
The hardness (152 Gpa) and bulk modulus (462–546 Gpa) of carbon nanotubes are greater
than diamond, which is considered the hardest material.
Electrical Properties:-
Because of the symmetry and unique electronic structure of graphene, nanotube has a very
high current carrying capacity.
12. Thermal Conductivity:-
All nanotubes are expected to be very good thermal conductors along the tube.
EM Wave absorption:-
There has been some research on filling MWNTs with metals, such as Fe, Ni, Co,
etc., to increase the absorption effectiveness of MWNTs in the microwave regime.
Thermal properties:-
All nanotubes are expected to be very good thermal conductors along the tube, but
good insulators laterally to the tube axis.
14. Toxicity:-
Under some conditions, nanotubes can cross membrane barriers, which
suggests that if raw materials reach the organs they can induce harmful effects
such as inflammatory and fibrotic reactions.
Crystallographic defect:-
As with any material, the existence of a crystallographic defect affects the
material properties. Defects can occur in the form of atomic vacancies.
15. There are three methods using which we can produce carbon nanotubes.
1. ARC DISCHARGE METHOD :-
18. 1. STRUCTURAL
2. ELECTROMAGNETIC
3. ELECTRO ACOUSTIC
4. CHEMICAL
5. MECHANICAL
6. ELECTRICAL CIRCUITS
a. Interconnects
b. Transistors
c. Electronic design and design automation
7. MEDICINE