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Potassium Natural Asphalt Sulfonate (K‐NAS): Synthesis and characterization as a new recyclable solid basic nanocatalyst and its application in the formation of carbon–carbon bonds
Author(s) -
Falah Saeid,
SoleimanBeigi Mohammad,
Kohzadi Homa
Publication year - 2020
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5840
Subject(s) - thermogravimetric analysis , chemistry , sulfonate , reactivity (psychology) , scanning electron microscope , catalysis , chemical engineering , nuclear chemistry , organic chemistry , materials science , composite material , sodium , medicine , alternative medicine , pathology , engineering
In this research, we synthesized and characterized a new heterogeneous basic nanocatalyst and its catalytic application was studied in the Claisen‐Schmidt and Knoevenagel condensations. In order to prepare this nanocatalyst, first, the Iranian natural asphalt was sulfonated with the concentrated sulfuric acid and then, converted to the potassium natural asphalt sulfonate (K‐NAS). In order to characterization of the nanocatalyst, used of FT‐IR spectroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X‐ray diffraction (XRD), inductively coupled plasma (ICP) and thermogravimetric analysis (TGA) techniques. This new basic heterogeneous nanocatalyst have advantages such as being eco‐friendly, huge specific surface area, high reactivity and recyclability .