The promoted catalytic hydrogenation performance of bimetallic Ni–Co–B noncrystalline alloy nanotubes

Abstract

Ni–Co–B noncrystalline alloy nanotubes exhibited higher catalytic activity and better stability due to the synergistic interactions between nickel and cobalt.

Improvement and regeneration of Co–B amorphous alloy nanowires for the selective hydrogenation of cinnamaldehyde

“…When the layer spacing was relatively smaller, such as d = 7.37 nm as previously reported, 25 the amorphous alloy nanotubes were easily formed through the curling mechanism. 25–27 However, in this work, it was easy to form NWs because the layer spacing was large ( d = 9.85 nm), and the lamellar liquid crystal could not be curled. The Co–B amorphous alloy NWs were confined to formation in the water layer of the liquid crystal.…”

“…The results show that the Co–B-200 NWs maintained their mesoporous structure after plasma treatment. 27 However, the treatment increased the specific surface and pore volume of the Co–B NWs. The H 2 -TPD curves for Co–B-0 and Co–B-200 NWs are shown in Fig.…”

“…Determining a method to overcome this degradation of catalytic performance due to agglomeration and oxidation, and improve the reusability is a challenge. Preference has been given to research geared toward the synthesis of amorphous alloy catalysts with nanotube, [25][26][27] nanosphere, [28][29][30] and nanochain 22 morphologies, which can effectively prevent agglomeration and enhance the structural stability of nanocatalysts. We previously reported a series of one-dimensional (1D) amorphous alloy nanotubes with high catalytic hydrogenation activity and selectivity by using the layered liquid crystal template method.…”

Boosting the Performance of Nano-Ni Catalysts by Palladium Doping in Flow Hydrogenation of Sulcatone

“…Thus, this enhances selectivity related to a suppression of undesirable reactions utilizing geometric and/or electronically blocking of active sites [34,35]. Nickel activity in hydrogenation can be promoted by alloy formation with a second metal, such as Co [36] and Pd [22,37]. The enhancement obtained when doping the catalyst with Pd is rationalized on the basis of improved hydrogen activation [38], and the hypothesis that is yet to be demonstrated experimentally in liquid processes.…”