Web of Science: 14 cites, Scopus: 17 cites, Google Scholar: cites,
Ultrasound-assisted exfoliation of a layered 2D coordination polymer with HER electrocatalytic activity
Contreras Pereda, Noemí (Institut Català de Nanociència i Nanotecnologia)
Moghzi, Faezeh (University of Tehran. School of Chemistry)
Baselga, Javier (Institut Català de Nanociència i Nanotecnologia)
Zhong, Haixia (Technische Universität Dresden. Faculty of Chemistry and Food Chemistry)
Janczak, Jan (Polish Academy of Science. Institute of Low Temperature and Structure Research)
Soleimannejad, Janet (University of Tehran. School of Chemistry)
Dong, Renhao (Technische Universität Dresden. Faculty of Chemistry and Food Chemistry)
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)

Data: 2021
Resum: Large blue rectangular crystals of the 2D layered coordination polymer 1 have been obtained. The interest for this complex is two-fold. First, complex 1 is made of 2D layers packing along the (0-11) direction favored by the presence of lattice and coordinated water molecules. And second, nanostructures that could be derived by delamination are potentially suitable for catalytic purposes. Therefore it represents an excellent example to study the role of interlayer solvent molecules on the ultrasound-assisted delamination of functionally-active 2D metal-organic frameworks in water, a field of growing interest. With this aim, ultrasound-assisted delamination of the crystals was optimized with time, leading to stable nanosheet colloidal water suspensions with very homogeneous dimensions. Alternative bottom-up synthesis of related nanocrystals under ultrasound sonication yielded similar shaped crystals with much higher size dispersions. Finally, experimental results evidence that the nanostructures have higher catalytic activities in comparison to their bulk counterparts, due to larger metallic center exposition. These outcomes confirm that the combination of liquid phase exfoliation and a suitable synthetic design of 2D coordination polymers represents a very fruitful approach for the synthesis of functional nanosheets with an enhancement of catalytic active sites, and in general, with boosted functional properties.
Ajuts: European Commission 852909
Agencia Estatal de Investigación RTI2018-098027-B-C21
Agencia Estatal de Investigación SEV-2017-0706
Nota: Altres ajuts: the ICN2 is funded by the CERCA programme/Generalitat de Catalunya. Noemí Contreras Pereda's project that gave rise to these results received the support of a fellowship from "laCaixa" Foundation (ID 100010434). The fellowship code is LCF/BQ/ES17/11600012. Renhao Dong acknowledgements the financial support DFG project (SPP 1928, COORNETs).
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: 2D MOF ; Coordination polymer ; Nanomaterials ; Delamination ; Ultrasound ; Catalysis
Publicat a: Ultrasonics sonochemistry, Vol. 70 (Jan. 2021) , art. 105292, ISSN 1873-2828

DOI: 10.1016/j.ultsonch.2020.105292
PMID: 32750659


9 p, 2.5 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Nanociència i Nanotecnologia (ICN2)
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 Registre creat el 2021-03-17, darrera modificació el 2022-09-11



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