BioFraMe II – Tailor-made bio-based frameworks for heterogeneous metal catalysts

BioFraMe is an innovative, broadly applicable supporting material for the preparation of bio‑based heterogeneous metal catalysts.

The composition and properties of the supporting materials and the loading with desired metals can easily be tailored to the planned applications based on the selection of the starting materials.

Challenges

In its diversity, catalysis is viewed as a technology of the future and, as a technical principle for conversion processes, plays an essential role in the bioeconomy. Today over 90 percent of chemical processes are based on catalytic processes. Therefore, bio-based catalysts are playing an increasingly important role in making chemical processes more sustainable. BioFraMe is intended to significantly expand the repertoire of available catalysts and thus make a contribution to sustainable chemistry.

Objectives and project plan

BioFraMes can be tailor-made from bio-based supporting materials. In addition to the implementation of sustainability aspects, a new, broad spectrum of heterogeneous metal catalysts is accessible. The idea of ​​using bio-based supporting materials for preparation of heterogeneous metal catalysts is based on the very good solubility of metal compounds and metal oxides in deep eutectic mixtures (DES) made from biogenic organic compounds. After pyrolysis of the metal-DES mixture under defined conditions, an active heterogeneous metal catalyst is created using simple technology. BioFraMe aims to develop heterogeneous metal catalysts with different bio-based supporting materials in the form of test kits. Individual test kits are to be produced for the applications requested by the customer. The miniaturization is unique and is an ideal opportunity for customers who still see obstacles in bio-based solutions to test “green” catalyst systems without a large investment. The optimal catalysts can then be specifically selected from the test kits and produced in larger amounts.

Impact

The technology used in BioFraMe opens up the possibility of using the entire spectrum of metals for use in heterogeneous catalysis − supported on the new bio-based supporting materials. This makes a defined set of different heterogeneous catalysts and thus a completely new catalyst space accessible, in which not only noble metals are available as heterogeneous metal catalysts for the synthesis.

Schematic overview of the production of BioFraMe as a bio-based supporting material. DES from bio based sources serve as a solvent for the metals and as starting materials for the bio-supporting materials. After pyrolysis of the DES-metal mixture, the bio based supported metal catalysts, or BioFraMes for short, are prepared in one step.
© Fraunhofer IGB
Schematic overview of the production of BioFraMe as a bio-based supporting material. DES from bio based sources serve as a solvent for the metals and as starting materials for the bio-supporting materials. After pyrolysis of the DES-metal mixture, the bio based supported metal catalysts, or BioFraMes for short, are prepared in one step.

Project information

Project title

BioFraMe II – Tailor-made bio-based frameworks for heterogeneous metal catalysts

 

Project duration

March 2021 – February 2023

 

Project partners

  • Institut für Nichtklassische Chemie e.V. (INC), Universität Leipzig

Funding

We would like to thank the German Federal Ministry of Education and Research (BMBF) for funding the project "BioFraMe", promotional reference number 031B1091A.

Federal Ministry of Education and Research.