2024
1. Nov. 21st 2024, LAVO 52, 2 PM
'Effectiveness of combining Mössbauer spectrometry with magnetic and gravimetric methods in environmental surveillance'
The lecture presents Mössbauer spectrometry and magnetic analysis of technogenic magnetic particles in topsoils from industrial and post-industrial steel metallurgy and iron mining areas. The identification of Fe phases bonding heavy metals in street dust - employing chemical fractionation, Mössbauer spectrometry, and magnetic methods has been also discussed. The design of a simple gravimetric microbalance-based magnetic susceptometer for soils and dust has been demonstrated.
2. Nov. 21st 2024, LAVO 52, 3 PM
'Metallic iron evidence in dust from ventilation system - Mössbauer, synchrotron and magnetic analysis'
The lecture delivers the investigations results on the dust from ventilation system operating in vehicle diagnostic laboratory hall. Initially, the samples of the dust were characterized by standard set of methods (SEM + EDS, TEM, XRD, XRF-WDS). Then Mössbauer spectrometry and magnetic hysteresis loops analysis were applied. Finally, synchrotron radiation XAS –NEXAFS experiment was performed. Main goal of the research was to verify the presence of metallic iron which is a signature of fresh technogenic and anthropogenic activity recorded in environmental samples.
3. Nov. 28th 2024, a.304, 2 PM
'Mössbauer spectroscopy inspection of 3D printed metallic elements, engine crankshafts, wind turbine shafts and nanomagnetic ferrofluids'
The main goal of the lecture is to show that Mössbauer spectroscopy can be a helpful technique for the industry in steel quality evaluation and in the inspection of iron oxides ferrofluids. Transmission Mössbauer spectrometry has been applied for the martensite-type structure assessment in sleeves made of maraging steel with selective laser melting (SLM). The conversion electron Mössbauer spectrometry (CEMS) has been utilized to verify phase purity and homogeneity of ferritic steel in marine diesel engine crankshaft. CEMS technique has also been involved in the isotropy and phase content inspection of steel in wind turbine main shafts. Moreover, the spin relaxation effects and particle size distribution in oil–nanomagnetite ferrofluids have been investigated with transmission Mössbauer measurements.
4. Nov. 28th 2024, a.304, 3 PM
'Redefinition of the International System of Units SI, new kilogram and mass nanometrology'
The lecture starts from the beginnings of metrology and then main focus has been set on the recent redefinition of the International System of Units (SI) based of fixed numerical values of fundamental physical constants. The main reason for this change was the problems with old, artefact-based kilogram standard. The principle of the Watt-Kibble balance was demonstrated to understand the new mass standard realization together with quantum standards of electrical quantities. The worldwide overview of Watt-Kibble Balance designs has been performed. Moreover, a contribution of Polish industry to modern mass metrology (ensuring traceability, nanometrology) has been presented. The state of policy towards mass metrology in Poland has been discussed, as well current trends in mass metrology in the world – including alternative projects and applications.
2023
1. Dec 18th 2023
'Electrical and Optical Addressing of Nuclear Spin States for Molecule-based Quantum Computing'
2. April 14th 2023
'Active Species and Mechanistic Pathways in Reduction Catalysis with 3d Transition Metal Pincer Complexes'
2019
1. Sept. 12th 2019
'Thermally Activated Delayed Fluorescence (TADF): A new paradigm for OLEDs ?!'
2. May 3rd 2019
Prof. Jean Marie Lehn (Univ. Strasbourg, France)
'Perspectives in Chemistry : From Supramolecular Chemistry towards Adaptive Chemistry'
2018
1. March 7th 2018
Frederico Martins (Univ. Lisbon, Portugal)
'The Effect of Halogen Substitution on the Physical Properties of Iron(III) Spin Crossover Compounds'
2. March 22nd 2018
Dr. Paulo N. Martinho (Univ. Lisbon, Portugal)
"First-row transition-metal-based molecular sensors and molecular switches"
2017
1. Dec 22nd 2017
Prof. Smail Radi (Univ. Mohammed 1st, Morocco)
'New hybrid materials based on PCs and Silica surface modification for biological and Environmental purposes'
2. March 8th 2017
'Polysaccharides : Structural diversity and functional versatility for advanced applications in health care'
2016
1. Oct 27th 2016
Prof. Gerard Śliwiński (Szewalski Institute of Gdańsk, Poland)
‘Photonic functionalization at nanoscale’
2. April 14th 2016
'Heterocycles with branched Keto-enol group: Efficient and versatile moieties'
3. March 9th 2016
'Two MOF-related stories: topological versality in 10-vertex carborane-based frameworks and a curious case of SCO@MOF confinement'
2015
1- Nov 5th 2015
'Ligand functionalization of spin-crossover hybrid materials'
2- Oct 23th 2015
'Ultra-low temperature measurements of London penetration depth in iron selenide telluride superconductors'
3-Oct 23th 2015
'FORC diagram method in the characterization of bistable systems. Let's FORC it !'
2013
1-July 10th 2013
'Spin crossover complexes and [M3Ln] macrocyclic single-molecule magnets'
2012
1-Nov 27th 2012
'Diverse architectures and properties of self-assembled pi-gels'
2-Nov 16th 2012
3-Nov. 16th 2012
Article of 'Libre Belgique' by Gilles Toussaint (journalist) and radio interview NUWA (La première).
2011
1-Sept 15th 2011
'Design, preparation and characterization of supported metal catalysts - Catalysis from nanoparticles to single atoms'
2- Dec 14th 2011
'Azolate metal organic frameworks and catalysis'
2010
1-June 2nd 2010
2-April16th 2010
2009
1-Oct 7th 2009
2-March 6th 2009
2008
1- Feb 18th 2008
2-June 11th 2008
3-Oct 16th 2008
2006
Nov. 15th 2006
2004
1-Nov 18th 2004,
'Mossbauer spectroscopy on Mars'
2- Nov 17th 2004,
'Thermal, optical, and pressure-induced spin state switching in iron complexes – From molecular processes to possible applications'
2003
1- May 15th 2003
'Observation of an unusual phase transition associated with a partial iron(II) spin-state crossover'
2. May 23rd 2003
'Magnetism and molecular electronics'
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