Comparative study on catalytic reactivity of colloidal Ni(0)NPs and Pd(0)NPs towards semi-hydrogenation of alkynes | Zendy

Phan Hong Phuong | Zendy; Nguyen Thi Hong Phuong | Zendy; Lam Hoa Hung | Zendy; Dang Bao Trung | Zendy

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Comparative study on catalytic reactivity of colloidal Ni(0)NPs and Pd(0)NPs towards semi-hydrogenation of alkynes

Author(s) -

Phan Hong Phuong,

Nguyen Thi Hong Phuong,

Lam Hoa Hung,

Dang Bao Trung

Publication year - 2021

Publication title -

vietnam journal of catalysis and adsorption

Language(s) - English

Resource type - Journals

ISSN - 0866-7411

DOI - 10.51316/jca.2021.033

Subject(s) - catalysis , nanoparticle , transmission electron microscopy , selectivity , palladium , reactivity (psychology) , nickel , metal , hydrogen , materials science , colloid , glycerol , chemistry , chemical engineering , inorganic chemistry , nuclear chemistry , organic chemistry , nanotechnology , medicine , alternative medicine , pathology , engineering

In this study, nickel nanoparticles (Ni(0)NPs) and palladium nanoparticles (Pd(0)NPs) were prepared in neat glycerol under hydrogen pressure by the bottom-up approach. The formation of zero-valent metal nanospheres was evidenced by transmission electron microscopy (TEM) and powder X-ray diffraction (XRD) analyses. Regarding their catalytic behaviors, Ni(0)NPs permitted to obtain the corresponding (Z)-alkenes in the semi-hydrogenation of both internal and terminal alkynes. In contrast, over-hydrogenations of such alkynes towards the alkanes were observed over Pd(0)NPs after only 2 hours of reaction. Interestingly, the catalytic phase of Ni(0)NPs in glycerol could be recycled up to 5 times, preserving their catalytic activity and selectivity.

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