journal article·2022-02-16Open access

Natural Wood-Based Catalytic Membrane Microreactors for Continuous Hydrogen Generation

Kunkun Tu, Simon Büchele, Sharon Mitchell, Laura Stricker, Chun Liu, Christian Goldhahn, Julien Allaz, Yong Ding, Roman Günther, Zhidong Zhang, Jianguo Sun, Sandro Stucki, Guido Panzarasa, Samuel C. Zeeman, Ingo Burgert, Javier Pérez-Ramírez, Tobias Keplinger

Abstract

The development of controlled processes for continuous hydrogen generation from solid-state storage chemicals such as ammonia borane is central to integrating renewable hydrogen into a clean energy mix. However, to date, most reported platforms operate in batch mode, posing a challenge for controllable hydrogen release, catalyst reusability, and large-scale operation. To address these issues, we developed flow-through wood-based catalytic microreactors, characterized by inherent natural oriented microchannels. The prepared structured catalysts utilize silver-promoted palladium nanoparticles supported on metal-organic framework (MOF)-coated wood microreactors as the active phase. Catalytic tests demonstrate their highly controllable hydrogen production in continuous mode, and by adjusting the ammonia borane flow and wood species, we reach stable productivities of up to 10.4 cm_{H2}3 min-1 cmcat-3. The modular design of the structured catalysts proves readily scalable. Our versatile approach is applicable for other metals and MOF combinations, thus comprising a sustainable and scalable platform for catalytic dehydrogenations and applications in the energy-water nexus.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Hydrogen Storage and Materials · Hybrid Renewable Energy Systems · Ammonia Synthesis and Nitrogen Reduction

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Wood Materials Science, Institute for Building Materials, ETH Zürich, 8093 Zürich, Switzerland

WoodTec Group, Cellulose & Wood Materials, EMPA, 8600 Dübendorf, Switzerland

Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland

Soft Materials, Department of Materials, ETH Zürich, 8093 Zurich, Switzerland

Institute of Molecular Plant Biology, Department of Biology, ETH Zürich, 8092 Zürich, Switzerland

Institute of Geochemistry and Petrology, ETH Zürich, 8092 Zürich, Switzerland

Laboratory of Adhesives and Polymer Materials, Institute of Materials and Process Engineering, Zürich University of Applied Sciences, 8401 Winterthur, Switzerland

Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, 8093 Zürich, Switzerland

Durability of Engineering Materials, Institute for Building Materials, ETH Zürich, Stefano-Franscini-Platz 3, 8093 Zürich, Switzerland

Funding

Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung · China Scholarship Council

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