Microscale Interface Synthesis of Ni-B Amorphous Nanoparticles from NiSO4 by Sodium Borohydride Reduction in Microreactor

Abstract

Amorphous nanoparticles have attracted a large amount of interest due to their superior catalytic activity and unique selectivity. The Ni-B amorphous nanoparticles were synthesized from aqueous reduction of NiSO 4 by sodium borohydride in microscale interface at room temperature. The size, morphology, elemental compositions, and the chemical composition on the surface of Ni-B amorphous nanoparticles were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). All the results showed that the synthesized particles are Ni-B amorphous nanoparticles with uniform in size distribution and having good dispersion. The mean particle diameter of Ni-B amorphous nanoparticles was around 9 nm. The present work provides an alternative synthesis route for the Ni-B amorphous nanoparticles.

Single-factor analysis of Ni–B–AC-catalyzed β-pinene hydrogenation based on hierarchical analysis

“…The high agreement with the experimental results was indirectly consistent with the claim that Ni–B is an amorphous alloy. 59–63…”

“…The high agreement with the experimental results was indirectly consistent with the claim that Ni-B is an amorphous alloy. [59][60][61][62][63] As can be seen from Table 3, FED 2 was the atomic contribution to the orbital. The attack object was guided by the 2FED 2 HOMO value; whereby, the larger the value, the more vulnerable the atomic position was to the attack of the electrophile.…”

Microreactor-based micro/nanomaterials: fabrication, advances, and outlook

“…Furthermore, to promote the application of microreactors in the synthesis of composite micro/nanomaterials, members of our team, such as Xu et al, [243][244][245] have conducted several studies. First, they proposed a method for synthesizing Ni-B amorphous nanoparticles with an average particle size of 9 nm by reducing NiSO 4 with NaBH 4 aqueous solution through a stainless steel micro-mixer.…”