More reaction sites increase activity
XAFS showed that the georgeite was incredibly disordered initially, and the final structure at the end of its evolution following calcination and reduction was completely different to that of zincian malachite. Moreover, the catalyst derived from georgeite was composed of much smaller copper and zinc oxide particles than that of zincian malachite, with a greater degree of interaction between the two phases. This observation was supported by environmental transmission electron microscopy performed at the Technical University of Denmark.
Kondrat SA et al. Stable amorphous georgeite as a precursor to a high-activity catalyst. Nature 531(7592), 83–87 (2016). DOI: 10.1038/nature16935
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
Copyright © 2020 Diamond Light Source
Diamond Light Source Ltd
Harwell Science & Innovation Campus
Diamond Light Source® and the Diamond logo are registered trademarks of Diamond Light Source Ltd
Registered in England and Wales at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom. Company number: 4375679. VAT number: 287 461 957. Economic Operators Registration and Identification (EORI) number: GB287461957003.