Poly(ionic liquid) nanovesicles via polymerization induced self-assembly and their stabilization of Cu nanoparticles for tailored CO2 electroreduction

Pan, Xuefeng and Kochovski, Zdravko and Wang, Yong-Lei and Sarhan, Radwan M. and Härk, Eneli and Gupta, Siddharth and Stojkovikj, Sasho and El-Nagar, Gumaa A. and Mayer, Matthew T. and Schürmann, Robin and Deumer, Jérôme and Gollwitzer, Christian and Yuan, Jiayin and Lu, Yan (2023) Poly(ionic liquid) nanovesicles via polymerization induced self-assembly and their stabilization of Cu nanoparticles for tailored CO2 electroreduction. Journal of Colloid and Interface Science, 637. pp. 408-420. ISSN 1095-7103

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Abstract

Herein, we report a straightforward, scalable synthetic route towards poly(ionic liquid) (PIL) homopolymer nanovesicles (NVs) with a tunable particle size of 50 to 120 nm and a shell thickness of 15 to 60 nm via one-step free radical polymerization induced self-assembly. By increasing monomer concentration for polymerization, their nanoscopic morphology can evolve from hollow NVs to dense spheres, and finally to directional worms, in which a multilamellar packing of PIL chains occurred in all samples. The transformation mechanism of NVs’ internal morphology is studied in detail by coarse-grained simulations, revealing a correlation between the PIL chain length and the shell thickness of NVs. To explore their potential applications, PIL NVs with varied shell thickness are in situ functionalized with ultra-small (1 ∼ 3 nm in size) copper nanoparticles (CuNPs) and employed as electrocatalysts for CO2 electroreduction. The composite electrocatalysts exhibit a 2.5-fold enhancement in selectivity towards C1 products (e.g., CH4), compared to the pristine CuNPs. This enhancement is attributed to the strong electronic interactions between the CuNPs and the surface functionalities of PIL NVs. This study casts new aspects on using nanostructured PILs as new electrocatalyst supports in CO2 conversion to C1 products.

Item Type:	Article
Impact Factor Value:	9.9
Subjects:	Engineering and Technology > Chemical engineering Natural sciences > Chemical sciences Natural sciences > Earth and related environmental sciences Engineering and Technology > Environmental engineering Engineering and Technology > Materials engineering Engineering and Technology > Nano-technology Natural sciences > Other natural sciences
Divisions:	Faculty of Technology
Depositing User:	Saso Stojkovik
Date Deposited:	27 Feb 2024 11:53
Last Modified:	27 Feb 2024 11:53
URI:	https://eprints.ugd.edu.mk/id/eprint/33770

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