Ultrasound-assisted exfoliation of a layered 2D coordination polymer with HER electrocatalytic activity
Contreras-Pereda N, Moghzi F, Baselga J, Zhong H, Janczak J, Soleimannejad J, Dong R, Ruiz-Molina D (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 70
Article Number: 105292
DOI: 10.1016/j.ultsonch.2020.105292
Abstract
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.
Involved external institutions
Technische Universität Dresden
Germany (DE)
Institut Català de Nanociència i Nanotecnologia (ICN2)
Spain (ES)
University of Tehran
Iran, Islamic Republic of (IR)
Polska Akademia Nauk (PAN) / Polish Academy of Sciences
Poland (PL)
Germany (DE)
Institut Català de Nanociència i Nanotecnologia (ICN2)
Spain (ES)
University of Tehran
Iran, Islamic Republic of (IR)
Polska Akademia Nauk (PAN) / Polish Academy of Sciences
Poland (PL)
How to cite
APA:
Contreras-Pereda, N., Moghzi, F., Baselga, J., Zhong, H., Janczak, J., Soleimannejad, J.,... Ruiz-Molina, D. (2021). Ultrasound-assisted exfoliation of a layered 2D coordination polymer with HER electrocatalytic activity. Ultrasonics Sonochemistry, 70. https://doi.org/10.1016/j.ultsonch.2020.105292
MLA:
Contreras-Pereda, Noemi, et al. "Ultrasound-assisted exfoliation of a layered 2D coordination polymer with HER electrocatalytic activity." Ultrasonics Sonochemistry 70 (2021).
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