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May 16-17, 2019 | Prague, Czech Republic

International Conference on

Nanomaterials and Nanotechnology

Advanced Nanoscience and Nanotechnology

Joint Event

Journal of Materials Science and Nanotechnology | Volume 3

Mater Sci Nanotechnol, Volume 3

In-Situ

TEM liquid flow cell synthesis of nanoparticles

Janez Zavašnik

and

Uroš Cvelbar

Jožef Stefan Institute, Slovenia

n the last decades, characterisation of natural and

man-made materials by means of electron microscopy

became one of the basic investigation techniques. The fast

development of the investigation methods and accessibility

of the scientific equipment, combined by the introduction of

novel research techniques, further unlocks our insight down

to the atomic level. However, besides beautiful pictures, the

data obtained from such investigations can be crucial in the

experiment planning and design, for fine-tuning or adjusting

the synthesis itself, for modification or tailoring of nano-

particles and nano-structures for various applications in

sensors, catalysis, magnetism, etc. Conventionally, we are able

to observe our samples only

post-mortem

; after the synthesis

or after the treatment, but the tendency to observe the

reactions, nanoparticle nucleation or performance of catalyst

in-operando

is probably as old as the invention of the electron

microscope itself. The implementation of thin membranes

to confine hydrated or gaseous samples exposed to the high

vacuum of the electron microscope chamber is not new but

has recently experienced a new Renaissance. In the talk, some

of the fundamentals and limitations of the liquid-flow

in-situ

synthesis and characterisation using transmission electron

microscope will be presented, together with recent advances

on the synthesis of anisotropic gold nanoparticles.