Skip to main content
  • DE
  • EN
  • FR
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)
Suche
Paul Scherrer Institut (PSI) Paul Scherrer Institut (PSI)

Hauptnavigation

  • Labs & User ServicesOpen mainmenu item
    • Overview
    • Research at PSI
    • Research Divisions and Labs
    • Facilities and Instruments
    • Research Initiatives
    • PSI User Labs
    • Scientific Highlights
    • Scientific Events
    • Scientific Career
    • Useroffice
  • VisitorsOpen mainmenu item
    • Overview
    • Contact
    • How to find us
    • Public Events
    • Visitor Centre psi forum
    • Schülerlabor iLab
    • Center for Proton Therapy
  • IndustryOpen mainmenu item
    • Overview
    • Technology Transfer
    • Spin-off Companies
    • PARK innovAARE
  • Our ResearchOpen mainmenu item
    • Current topics from our research
    • Matter and Material
    • Human Health
    • Energy and Environment
    • Large Research Facilities
    • Brochures
    • Films
    • Media Corner
  • Career & Further EducationOpen mainmenu item
    • Job Opportunities
    • Personnel Policy
    • Working at PSI
    • Equal Opportunities, Diversity & Inclusion
    • Training and Further Education
    • Vocational Training
    • PSI Education Centre
    • Support Program "PSI Career Return Program"
    • PSI-FELLOW/COFUND
  • About PSIOpen mainmenu item
    • PSI in brief
    • Strategy
    • Guiding principles
    • Facts and figures
    • Organisational structure
    • Suppliers and customers
    • Customers E-Billing
    • IT and Computing
    • Safety at PSI (in German)

You are here:

  1. PSI Home
  2. Labs & User Services
  3. ENE
  4. LBK
  5. CPE
  6. Analytics
  7. TG FTIR

Secondary navigation

Catalytic Process Engineering

  • About CPE
  • People
  • Projects
    • KONTI-C
    • In-situ characterization of catalysts under HP/HT conditions
    • SNG
    • Etamax
    • Biomass related Salt Solutions
    • Rational Design of Novel Ru/C Catalysts for Supercritical Water Gasification (SCWG)
    • In-situ characterization of catalysts
    • Green chemicals from Lignin
  • Fuel Simulation
  • Analytics Expanded submenu item
    • TG FTIR
    • FTIR-Raman
  • Test Rigs
  • Publications
    • Articles
    • Poster
    • Talks
    • Books chapters
    • Dissertations

Differential Thermogravimetric Analyser coupled with Infrared Spectroscopy

(DTA / TGA-FTIR)

The TGA-FTIR
The TGA-FTIR
The DTA / TGA - FTIR setup can record the weight change of a sample as a function of temperature or time. Exothermic as well as endothermic processes can be identified. Evolved products are monitored by infrared spectroscopy (Figure 1). Reactants (i.e. oxygen, methane) can be added either continuously or as pulses.


Layout of the DTA / TGA-FTIR setup.
Layout of the DTA / TGA-FTIR setup.
The DTA / TGA-FTIR setup is used for in-situ catalyst studies. In a typical experiment, methane pulses (0.5 ml / pulse) are given over a pre-oxidised catalyst. The reaction products are analysed with the FTIR spectrometer. The result of a pulse experiment on a pre-oxidised ruthenium catalyst is shown in Figure 2. The oxidised ruthenium catalyst is reduced by methane (TG-curve: a weight loss is obseved). CO2 is exclusively produced in an exothermic reaction. With increasing level of reduction, CO2 formation decreases and CO is formed. After 8 pulses, a transition from exothermic to endothermic processes is observed. Interestingly, the formation CO2 is nearly zero and CO is the only product at this state of reduction.


Results of a pulse TGA-FTIR experiment over a pre-oxidised ruthenium catalyst.
Results of a pulse TGA-FTIR experiment over a pre-oxidised ruthenium catalyst.
There are some more applications for DTA / TGA-FTIR experiments in heterogeneous catalysis: studies on the carbon formation on catalysts, temperature programmed reduction / oxidation studies (TPR / TPO) or continuous flow experiments which give information about the oxidation state of a working catalyst.

Sidebar

Contact

Paul Scherrer Institut
Bioenergy and Catalysis Laboratory
5232 Villigen PSI
Switzerland

Head CPE Group
Prof. Dr. Frédéric Vogel
Tel: +41 56 310 21 35
Email: frederic.vogel at psi.ch

Secretary
Gisela Herlein
Tel: +41 56 310 26 63
E-mail: gisela.herlein@psi.ch

Homepage ENE

Energy and Environment Research Division at PSI

fhnw logo de.png

The College of Engineering of the University of Applied Sciences Northwestern Switzerland

HM Logo.gif

Hydromethan AG is a spin-off company of the Paul Scherrer Institute
Main topic ist the production of synthetic natural gas from organic waste streams

PSI Scientific Reports

Archive 2006-2012. The Scientific Reports – containing accounts of research topics from all the different areas – provide an impression of the variety of subjects researched at PSI.


ENE Open positions

current opening at Research Division Energy and Environment

top

Footer

Paul Scherrer Institut

Forschungsstrasse 111
5232 Villigen PSI
Switzerland
How to find us

Imprint
Terms and Conditions

Login

Telephone: +41 56 310 21 11
Telefax: +41 56 310 21 99
Contact form

Visitor Centre psi forum
School Lab iLab (in German)
Center for Proton Therapy

Follow us: Twitter (in English) LinkedIn Youtube Issuu RSS

Quicklinks

  • Phone Book/People Search
  • Digital User Office
  • Technology transfer
  • PSI Publications
  • Computing
  • Safety (in German)
  • Job Opportunities
  • Vocational Training (in German)
  • Suppliers
  • Customers E-Billing
  • PSI Guest House
  • PSI Gastronomie (in German)

For the media

  • Media Contact
  • Media Releases
  • Social Media Newsroom
  • Facts and Figures
  • PSI in brief
  • Films
  • DE
  • EN
  • FR