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Hierarchical Porous Wood Cellulose Scaffold with Atomically Dispersed Pt Catalysts for Low-Temperature Ethylene Decomposition.
Journal article

Hierarchical Porous Wood Cellulose Scaffold with Atomically Dispersed Pt Catalysts for Low-Temperature Ethylene Decomposition.

  • Guo H Wood Materials Science , ETH Zürich , 8093 Zürich , Switzerland.
  • Warnicke P Paul Scherrer Institut , 5232 Villigen PSI , Switzerland.
  • Griffa M Concrete/Construction Chemistry , Empa - Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Müller U Nanoscale Materials Science , Empa - Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Chen Z Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences , ETH Zürich , Zürich 8093 , Switzerland.
  • Schaeublin R ScopeM-Scientific Center for Optical and Electron Microscopy , ETH Zürich , 8093 Zürich , Switzerland.
  • Zhang Z Durability of Engineering Materials , ETH Zürich , 8093 Zürich , Switzerland.
  • Luković M Wood Materials Science , ETH Zürich , 8093 Zürich , Switzerland.
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  • 2019-11-27
Published in:
  • ACS nano. - 2019
atomically dispersed Pt
environmental catalysis
ethylene decomposition
gas transport
hierarchical porosity
wood cellulose scaffold
English Despite the excellent catalytic properties of individual nanoparticles and atomic clusters, the current capabilities to assemble them into a complex system are insufficient for many practical applications. An objective of this work is to develop a fabrication technology that allows for the simultaneous control of the nanoparticle surface chemistry, elemental distribution, microscale geometry, and large-scale assembly. Using a cellulose structure derived from wood, we fabricate hierarchical porous cellulose scaffolds combining with cerium-doped TiO2. This hybrid material serves as the support for atomically dispersed Pt catalysts and is used to successfully decompose ethylene at 0 °C. The fabrication concept developed in this work would allow mitigating the conflict between the required large active surfaces and the difficulties in handling nanopowders in environmental catalysis, including food preservation and indoor air purification. We thus discover a promising route to manufacture multifunctional materials with complex structures by combining a controllable chemical synthesis with the nature-designed wood scaffold.
Language
  • English
Open access status
closed
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Persistent URL
https://sonar.ch/global/documents/139986
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