[seminar] reminder: seminar today 13. 06. 2022. at 14:15 - Julio C. Chacon-Torres: Integrating ``in-situ" Optical Spectroscopic Techniques for the Understanding of Functionalization in Carbon Nanomaterials

[Sanjin Benić]

Drage kolegice i kolege,

ovo je podsjetnik na danasnji Fizičkog odsjeka u hibridnom izdanju
(uzivo+online uz zoom link u nastavku)

Dear colleagues,
this is a reminder for today's seminar of the Department of Physics in
hybrid edition (live+online with zoom link below)

ponedjeljak/Monday 13.06.2022. u 14 h (c.t.) u F201

poveznica: https://zoom.us/j/8205066086
id: 820 506 6086

Integrating ``in-situ" Optical Spectroscopic

Techniques for the Understanding of Functionalization in Carbon

Nanomaterials


Julio C. Chacon-Torres

School of Physical Sciences and Nanotechnology, Yachay Tech University

Hda. San Jose SN y Proyecto Yachay, 100119 Urcuqui, Ecuador

Over the past years Chemistry and Physics have merged together
developing a novel method
for studying chemical, electrochemical and physicochemical surface
interactions between
carbon nanostructures and diverse functional groups and molecules. In
our most recent works
we have disclosed a near universal trend where charge transfer governs
the electrochemical
activation of carbon nanomaterials when exposed to potassium
undergoing an electron
doping (e-doping) process. An entire picture of how electron doping
alters the carbon
nanostructure vibrational response as a function of doping
concentration and the structure of
the nanomaterial is evident, as well as the immediate changes revealed
after they get exposed
to water, gases or pre-selected functionalities. We found three main
important results: i)
Electron doping/intercalation works for majority of the carbon
nanostructures (SWCNTs,
MWCTs, carbon nano-onions, graphite, graphene, and carbon
nanoribbons). ii) There exist a
trend along the doping process in carbon nanotubes dependent on the
nanotube diameter and
chirality. iii) Functional groups can be attached to the surface of
the nanostructure without
damaging the crystallinity of the nanostructure. By combining
theoretical and experimental
studies, we can cross confirm the effects of doping and
functionalization that takes place by
induced charge transfer and alkali-metal intercalation. These studies
are extended to none
carbon nanostructures revealing imprecedent novel results that could
drive a new area of
study along the controlled synthesis of functional nanomaterials for
optoelectronics, batteries
and sensing devices.

Cjeloviti oglas je u prilogu./Formatted announcement is attached.

Lijep pozdrav / Best regards
Sanjin Benic i Damjan Pelc
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.phy.pmf.unizg.hr/pipermail/seminar/attachments/20220613/ac6aa526/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sfo6.pdf
Type: application/pdf
Size: 43852 bytes
Desc: not available
URL: <http://www.phy.pmf.unizg.hr/pipermail/seminar/attachments/20220613/ac6aa526/attachment-0001.pdf>