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Controllable Synthesis and Catalytic Performance of Gold Nanoparticles with Cucurbit[n]urils (n = 58)

The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, Hubei Province Key Laboratory of Science in Metallurgical Process, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(12), 1015;
Received: 9 November 2018 / Revised: 1 December 2018 / Accepted: 2 December 2018 / Published: 6 December 2018
(This article belongs to the Special Issue Nanocatalysts in Chemistry: Synthesis and Applications)
A series of gold nanoparticles (AuNPs) was prepared in situ with different cucurbit[n]urils (CB[n]s) in an alkaline aqueous solution. The nanoparticle sizes can be well controlled by CB[n]s (n = 5, 6, 7, 8) with different ring sizes. The packing densities of CB[58] and free surface area on AuNPs were determined. A direct relationship was found between the ring size and packing density of CB[n]s with respect to the AuNP-catalyzed reduction of 4-nitrophenol in the presence of NaBH4. The larger particle size and higher surface coverage of bigger CB[n]-capped AuNPs significantly decreased the catalytic activity. Furthermore, this work could lead to new applications that utilize AuNPs under an overlayer of CB[n]s for catalysis, sensing, and drug delivery. View Full-Text
Keywords: gold nanoparticles; cucurbit[n]urils; controllable synthesis; catalysis gold nanoparticles; cucurbit[n]urils; controllable synthesis; catalysis
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MDPI and ACS Style

Zhang, L.; Liu, S.; Wang, Y.; Zhang, H.; Liang, F. Controllable Synthesis and Catalytic Performance of Gold Nanoparticles with Cucurbit[n]urils (n = 58). Nanomaterials 2018, 8, 1015.

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