Zinc ferro- and ferri-cyanides catalyst structures from point of colloid chemistry view

Abstract

The aim of this research was to comprehensively analyze zinc ferro- and ferri-cyanides for rationally choose or modify hexacyanoferrates in a range of application focused on catalysing the ring-opening copolymerization of epoxides and CO 2 to reduce the environmental toll. Scripts of the synthesis of 14 samples with variable morphology are given. Thermogravimetry, FT-IR, and XRD indicates the formation of two predominant types of bridging cyanide groups with different coordination environment, which accounts for a lack crystallinity aggregate with an amorphous part. Involving dynamic light scattering and laser Doppler electrophoresis as distinguishing features the formation of colloidal fractions is demonstrated and characterized. The switch from a negative surface rich in Lewis basic sites (Me–C[tbnd]N –) to a surface rich in open-metal sites is either jump and stepwise successfully completed. The proposed structures of micelles of the catalysts allow great attention to be paid to every small detail of their catalytic activity.

Publication DOI: https://doi.org/10.1016/j.apcata.2024.119902
Divisions: College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
Funding Information: The authors are grateful for the funding provided by the 2022/23 Aston Pump Priming Scheme in collaboration with Research England. The authors express their gratitude to the Ministry of Education and Science of Ukraine for partial financial support in the
Additional Information: Copyright © 2024 Published by Elsevier B.V. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License [https://creativecommons.org/licenses/by-nc-nd/4.0/].
Uncontrolled Keywords: Cyano metal complex,Cyanometallate,Double metal cyanide,Prussian blue analogue,Process Chemistry and Technology,Catalysis
Publication ISSN: 1873-3875
Data Access Statement: Data will be made available on request.
Last Modified: 04 Oct 2024 17:25
Date Deposited: 05 Aug 2024 12:37
Full Text Link:
Related URLs: https://www.sci ... 926860X24003478 (Publisher URL)
PURE Output Type: Article
Published Date: 2024-08-25
Published Online Date: 2024-08-02
Accepted Date: 2024-08-01
Authors: Laguta, Anna
van Koningsbruggen, Petra (ORCID Profile 0000-0001-9366-1913)

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Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 2 August 2025.

License: Creative Commons Attribution Non-commercial No Derivatives


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