Service Offer
Solid (real crystal) structure-properties relations (SPR) for catalysis applications cannot be calculated ab initio in its full extent yet. Material development according to trial-and-error or one-after-the-other approaches are very time consuming and costly. By parallelization through high-throughput experimentation material discovery can be accelerated as well a larger parameter space be investigated.
Our scientific focus is on the investigation of new heterogeneous catalysts and other materials as for instance chalcogenide nanoparticles for applications as thermoelectrics, energy storage materials etc.
Our expertise is the transfer of knowledge generated by basic research in the area of struc-ture-properties relations to industrial ways of looking at problems.
You are welcome with your problems which we elaborate with pleasure in form of feasibility studies within the scope of a master thesis or a PhD thesis for more extensive studies and projects and offer also the assistance in the search for appropriate funding possibilities with public funding institutions (ZIM, AIF, BMBF, EU etc.).
Contact: Prof. Dr. Klaus Stöwe klaus.stoewe@…
In the field of High-Throughput Technologies we offer
Development / application of reactor systems
3-fold parallel gas phase flow tube reactor
- Manufacturer: self-built
- Speciality: Measurement in several flow tube reactors under the same conditions for catalytic investigations on gaseous systems
10-fold parallel gas-phase micro-slit reactor
- Manufacturer: self-built
- Speciality: Measurement in several micro-slit reactors under the same conditions up to 30 bar
60-fold parallel photo-stirred reactor
- Manufacturer: In-house construction
- Speciality: Discontinuous reactor system for photocatalytic investigations in liquid systems
Simultaneous individual irradiation of 60 different samples with UVA high-power LEDs (λ=365nm)
Photo micro-slit reactor
- Manufacturer: self-built
- Speciality: Continuous reactor system for photocatalytic investigations with UVA high-power LEDs (λ=365nm) in liquid systems
x-y-z-stage
- Manufacturer: self-built
- Speciality: Modular synthesis reactor system for nanoparticle/quantum dot synthesis (2 nm and larger) with very narrow particle size distribution
Microjet reactors
- Manufacturer: self-built
- Speciality: High-throughput reactor for rapid serial screening of catalyst materials
ILS 8-fold parallel multipurpose high-throughput reactor system with GC-FID/TCD
- Manufacturer: ILS Integrated Lab Systems GmbH / JAS GmbH
- Type: ILS805 / Multipose Analyser GC 8860
- Special feature: Hot tail inlet up to 200℃, valve circuit with 3 detectors
- unding: HBFG-funded large-scale device by the State Directorate of Saxony and DFG (INST 270 / 345 - 1FUGG)
Further reactors
- SPR16 multi-reactor system (from AMTEC)
- Stirred autoclave 4843 (from PARR)
Construction of material libraries using
Chemspeed SLT106 synthesis robot
- Manufacturer: Chemspeed Technologies AG
- Type: Accelerator SLT106
- Special feature: 4-needle liquid dosing unit (LDU), solid dosing unit (SDU), three 16-fold parallel HD autoclave blocks
For parallel multi-step syntheses, reagent preparation, solid dosing, reaction, filtration, extraction, evaporation, work-up
Chemspeed ASW pipetting synthesis robot
- Manufacturer: Chemspeed Technologies AG
- Type: ASW 2000
- Special feature: 1-needle-2-piston pipetting device, 6-fold parallel reactor, liquid dosing, reactor volume 80 ml
Inkjet printing system with CCD camera
- Manufacturer: Microdrop
- Type: Autodrop
- Special feature: Microdispensing system with positioning
Other devices
- e.g. pipetting robot (Zinsser-Lissy)
Parallel or very fast analysis methods
Library screening using spectrometric methods:
Confocal Raman microscope
- Manufacturer: RENISHAW GmbH
- Type: inViaTM Raman microscope
- Special feature: Confocal; depth resolution 1.1 µm
Laser 1: 532 nm (point laser)
Laser 2: 785 nm (line laser) - Funding: HBFG-funded large-scale device by the State Directorate of Saxony and DFG (INST 270 / 269 - 1FUGG)
FT-IR microscope
- Manufacturer: BRUKER Corporation
- Type: FTIR spectrometer: Vertex 70
FTIR microscope: Hyperion 1000 - Special feature: Vertex 70: Detection range 10000 - 750 cm-1 with N2 cooling
Diamond ATR
Diffuse reflectance unit
Hyperion 2000: Magnification 4x, 15x - IR objective - Funding: HBFG-funded large-scale device by the State Directorate of Saxony and DFG (INST 270 / 269 - 1FUGG)
IR reaction cell
- Manufacturer: LINKAM Scientific Instruments
- Type: FTIR600 heating and freezing stage
- Special feature: Temperature range: -196℃ to 600℃
Heating rate: up to 150℃/min - unding: HBFG-funded large-scale device by the State Directorate of Saxony and DFG (INST 270 / 269 - 1FUGG)
UV-VIS microtitre plate reader
- Manufacturer: BioTek Instruments
- Type: Power Wave XS, λ=200–800 nm
- Special feature: 96-fold quartz window microtitre plate
Library screening using chromatographic methods and various detectors:
GC-MS with Multipurpose Autosampler
- Manufacturer: AGILENT Technologies Inc / GERSTEL GmbH & Co. KG
- Type: Agilent GC ; MS 5977B 7890B / Gerstel MPS robotic pro
- pecial feature: GC cold feed system for temperature-sensitive samples; quadrupole mass spectrometer
UHPLC-TQ-MS
- Manufacturer: Waters GmbH
- Type: Xevo TQ-XS System
- Speciality: For trace analysis
Binary high-pressure gradient generation up to 1200 bar and reproducible shock sampling
High sensitivity for low detection limits without sample preconcentration due to uni-spray ion source;
Max scan speed 20000 D/s;
Signal-to-noise ratio at 1pg: 750000:1 (pos) and 750000:1 (neg) - Funding: HBFG-funded large-scale device by the State Directorate of Saxony and DFG (INST 270 / 319 - 1FUGG)
Further methods:
- spatially resolved emission-corrected infrared thermography (EcIRT)
selection of additional instruments
- thermogravimetric analysis (TGA) / differential scanning calorimetry (DSC)
- determination of specific surface area SSA according to BET (single/ multiple point measurements)
- determination of density by He pycnometry
- determination of effective diffusion coefficients according to Wicke-Kallenbach (self-built cell)
- gravimetric determination of high-pressure adsorption properties by magnetic levitation balance
- determination of molar mass of macromolecular compounds by vapour-pressure osmometer
- rectification system (self-built)
- determination of wettability properties of surfaces by contact angle measurements
- mixing, dispersing and degassing without stirring by speedmixer (dual asymmetric centrifuge)
- realisation of titration and (co-)precipitation reactions via different automated titrators
- determination of layer thickness by Fischerscope (also combination of different materials possible)
