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Volume 3, Issue 2 (Suppl) Trends in Green chem
ISSN: 2471-9889 Environmental & Green Chemistry 2017
July 24-26, 2017
Page 17
5 th International Conference on
&
6 th International Conference on
July 24-26, 2017 Rome, Italy
Green Chemistry and Technology
Environmental Chemistry and Engineering
Ionically conducting materials as effective catalyst supports with potential implementations in
emissions control catalysis
Statement of the Problem: Nowadays, the abatement of CO, HCs, NOx and N2O emissions from automotive or stationary
sources constitutes a subject of major environmental importance because of the major contribution of these pollutants to
serious environmental problems, such as photochemical smog, acid rain, greenhouse effect and climate change as well as
stratospheric ozone depletion (N2O). Heterogeneous catalysis plays a key role in pollutant abatement technologies and often
provides the most attractive and efficient solutions as, for example, in automotive emissions control – the most significant source
of atmospheric pollution over the word. However, atmospheric pollution remains a huge and growing problem; therefore, an
imperative need of even more efficient and economic catalytic abatement technologies remains as a highly desirable goal.
An advanced catalyst promotion method that provides catalytic systems with exceptional activity and stability has currently
attracted extensive attention for a wide range of applications related to energy production and environmental protection, is the
subject herein.
Methodology & Theoretical Orientation: Ionically conducting materials as catalyst supports can be used as tunable metal-
support interaction carriers, effectively controlling catalytic properties, via an effective dipolar layer of ionic promoter species
formed at the catalyst particle surfaces, with concomitant dramatic effects on catalytic performance. The dipolar layer and its
intensity (promoter species population), can be electrochemically controlled (Electrochemical Promotion or NEMCA effect)
or can spontaneously be created on traditional-type highly dispersed catalysts, via thermally-driven spillover of ionic species
from the support on the nanoparticle surfaces.
Conclusion & Significance: Worth noting achievements on environmentally important catalytic reactions (CO, HCs, NOx,
N2 O abatement) have been accomplished by this concept of promotion. An additional implementation of the concept, which
concerns catalyst nanoparticles stabilization against thermal sintering, a subject of great importance in industrial heterogeneous
catalytic processes, has recently been discovered.
Biography
Ioannis V Yentekakis is Full Professor of Physical Chemistry and Catalysis in the School of Environmental Engineering, Technical University of Crete (TUC), Greece.
He received Chemical Engineering Diploma (1983) and PhD (1988) from the University of Patras. He has joined Princeton University USA, ICE-HT/FORTH Patras GR,
Cambridge University UK as Senior Researcher, University of Patras, Dept. Chemical Engineering, as Assistant Professor (1996-2000), and finally Technical University
of Crete as Associate (2001-06) and Full Professor (2006-today). He is regular member of the University Council of Technical University of Crete and Director of the Lab-
oratory of Physical Chemistry & Chemical Processes. His current interest concerns development of novel materials and processes in heterogeneous catalysis for green
and fine chemistry, environmental protection and renewable/sustainable energy generation. He authorized >100 peer-reviewed journal publications (with >3000 citations,
h-index=32), >120 conference proceedings, 3 patents and 10 books.
Ioannis V Yentekakis
Technical University of Crete, Greece
Ioannis V Yentekakis, Trends in Green chem, 3:2
DOI: 10.21767/2471-9889-C1-001