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. 2019 May 7;9(25):14154-14159.
doi: 10.1039/c9ra01608b.

Highly dispersed Ni nanoparticles on mesoporous silica nanospheres by melt infiltration for transfer hydrogenation of aryl ketones

Hyemin Kweon  1 , Sanha Jang  1 , Akerke Bereketova  1 , Ji Chan Park  2 , Kang Hyun Park  1
Affiliations

Highly dispersed Ni nanoparticles on mesoporous silica nanospheres by melt infiltration for transfer hydrogenation of aryl ketones

Hyemin Kweon et al. RSC Adv. .

Abstract

Nickel-based catalysts have been applied to the catalytic reactions for transfer hydrogenation of carbonyl compounds. In the present work, highly dispersed nickel particles located at the pores of mesoporous silica spheres (Ni@mSiO2) were prepared via an optimized melt infiltration route. The nickel nanoparticles of 10 wt% in the Ni@mSiO2 catalyst could be uniformly loaded with high dispersion of 36.3%, resulting excellent performance for catalytic transfer hydrogenation of aryl ketones.

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Conflict of interest statement

There are no conflicts to declare.

Figures

Scheme 1
Scheme 1. A brief synthetic scheme of Ni@mSiO2 nanocatalyst.
Fig. 1
Fig. 1. (a and b) TEM images, (c) FT pattern for (b) (inset of c) and IFFT image, (d) HRTEM image, (e) N2 adsorption/desorption isotherms, and (f) pore size distribution diagrams of mSiO2. The bars represent 1 mm (a), 100 nm (b), and 20 nm (d).
Fig. 2
Fig. 2. (a and b) TEM and (c) HAADF TEM images, (d) scanning TEM image with elemental mapping and (e) HRTEM images, and (f) XRD spectrum of Ni@mSiO2 nanostructure. The bars represent 200 nm (a), 20 nm (b–d), and 2 nm (e).
Fig. 3
Fig. 3. (a) N2 adsorption/desorption isotherms and (b) pore size distribution diagrams of Ni@mSiO2 nanocatalyst.
See this image and copyright information in PMC

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