Chemical Technology

 

The division Chemical Technology bridges the gap between scientific knowledge in chemical and biotechnological research and the practical application in engineering. This research area represents one of the core aspects of the DECHEMA, and has therefore been a very important element since the institute was founded.

The division consists of five teams which work closely together on their individual research topics

 

Teams

Applied Electrochemistry

 Electrochemical_Cell

Mankind faces huge challenges concerning sustainable supply with energy, water and raw materials.

The research team applied electrochemistry is concerned with electrochemical processes for energy storage, water treatment and recovery of raw materials.

In the energy sector the team focusses on flow-batteries, monitoring their state of charge and developing electrolytes and electrodes. For electrochemical water treatment the contaminants, e.g. pharmaceuticals, are degraded by advanced oxidation processes at boron doped diamond electrodes. The recovery of raw materials is based on electrochemical dilution and precipitation of metals.

 

CompetencesRedoxFlowCell1


  • Flow-Battery test set ups
  • State of chrage monitoring
  • Impedance Spectroscopy
  • Spectro-electrochemistry
  • Advanced Oxidation Processes

 

Energy Storage and Conversion

Instrumente für den Bau der 26650_32650 zylindrischen Zellen

The R&D activities of the Energy Storage & Conversion team focus on the development of catalysts and electrode materials for fuel cells, batteries and electrolysers which include powder synthesis, ink & paste formulation, electrode coating and testing in laboratory cells. Our expertise lies principally in development of active and stable catalysts and intercalation materials for the PEM & High-Temperature Solid Oxide Fuel Cell (PEMFC / SOFC) as well as for Al-ion & Zn-ion (AIB / ZIB) batteries. Recently, we started to work on new research topics such as electrochemical Platinum recovery as well as identification of degradation mechanisms in alkaline (AEL), acidic (PEMEL) and high-temperature electrolysers (HTEL). A broad range of physico-chemical and electrochemical methods and instruments are available for investigation for R&D research and contracting projects:

 

Selected methods& facilities

Synthese von Kohlenstoffen via Soft-Template Routen

  • Catalyst synthesis by sol-gel, hydrothermal & solid-state routes up to 1 kg per batch
  • Powder characterisation via BET, conductivity, Raman, REM/EDX, TGA, XPS & XRD
  • Electrode coating using spraying, DrBlade, screen printing & calendaring techniques
  • Electrochemical cyclic voltammetrie & impedance spectroscopy in half- & full-cells.
  • Accelerated chemical & electrochemical degradation tests
  • Identification and quantification of dissolved species through IC & ICP-MS
  • Conductivity measurements up to 1200°C
  • Testing system for small fuel cell (5-25 cm²) and electrolyser units (5-1000 W)
  • Fabrication line for button & cylindrical (AA, 26650) cells at laboratory scale and test of batteries at up to 4.5 kW

Microbial Biotechnology 

 Flower Plate2

The mission of the “Microbial Biotechnology” team is the development of biotechnological production processes and, in particular, of tailor-made microorganisms. One focus topic is the optimization of cells with regard to the carbon flows, but also product and substrate tolerance or other desired properties. In addition to rational approaches with the help of genetic engineering, high-throughput screenings and directed evolution are used. Another focus is the identification and use of novel enzymes that are isolated from natural sources or generated by means of protein engineering. The team has particular expertise in the natural product area of ​​terpenes, in the area of ​​C1 biotechnology with substrates such as methanol, formate or CO2 as well as in the biotechnological production of fatty acid derivatives. Moreover, the team is experienced in the production of samples of biotechnologically manufactured products.


Selected methodsEnzyme Structure

  • Optimization of processes in parallel fermentation systems
  • Cultivation and analyses on a microtiter plate scale
  • Quantitative analyses using LC-MS / MS
  • Quantitative GC-MS analyses with an automated thermal desorption unit
  • Single cell analyses and selections using fluorescence-activated cell sorting

 

Photocatalysis

Photoreactor1

Light-driven chemical reactions represent a sustainable method for a variety of applications. They often open up novel possibilities which cannot be reached straightforward with classical methods. For example, air and water can be remediated and cleansed from pollutants, organic synthesis can be conducted under mild conditions or light energy can be stored in chemical form like hydrogen or batteries. Furthermore, photon-driven processes can also be combined with biological catalysts enabling highly selective reactions.

The researchers in the Photocatalysis team develop novel photon-driven processes and try to understand them to be able to optimize them properly. The main goal is to utilize the light energy optimally, either in form of sunlight or efficient artificial light sources. Besides the development of novel methods, the focus lies on intensification and scale-up of the processes.


The key research topics of the group are:Wireless Light Emitters

 

  • Photocatalysis
  • Reaction engineering and scale-up
  • Sustainable production
  • Air-, water- and surface cleaning
  • Electrochemical energy storage and conversion

 

Sustainable Electrochemistry

Electrochemical Cell

In the sustainable electrochemistry research team, scientists are working on technical solutions for sustainable resource and energy management. In this context, the development of alternative raw material sources such as CO2 as well as the extended recycling of materials and energy flows as well as alternative synthesis routes is addressed electrochemically.

The focus is on methods for electrochemical gas utilization (e.g. CO2 reduction or CH4 oxidation), the development of catalysts and electrolysis cells, water treatment and analytics as well as the combination of electrochemical methods with biotechnological processes in bioelectrochemistry.

 

Selected MethodsEC

  • Electrocatalyst and electrode development
  • Electrolysis
  • Bioelectrochemical Systems
  • Microbial electrosynthesis
  • Gas diffusion electrodes

 

We can do research for you

Did our research topics spark your interest? Or can we support you with our comprehensive analytical methods? Take a look on our services site and do not hesitate to contact us.

Head of Division

Assoc. Prof. Dr. Jonathan Bloh

Telephone +49 69 7564-387

 

Research Teams

Applied Electrochemistry

Dr. Claudia Weidlich

Telephone +49 69 7564-633

Energy Storage and Conversion

Dr.-Ing. Jean-François Drillet

Telephone +49 69 7564-476

Microbial Biotechnology

Dr. Markus Buchhaupt

Telephone +49 69 7564-629

Photocatalysis

Assoc. Prof. Dr. Jonathan Bloh

Dr. Bastien Burek

Telephone +49 69 7564-179

Sustainable Electrochemistry

Dr. Markus Stöckl

Telephone +49 69 7564-642

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