Cyganowski, Piotr published the artcile< Fully recyclable gold-based nanocomposite catalysts with enhanced reusability for catalytic hydrogenation of p-nitrophenol>, Category: chlorides-buliding-blocks, the main research area is nitrophenol hydrogenation recyclable gold nanocomposite catalyst reusability.
Nanocomposite (NC) materials, which demonstrate catalytic activity under mild conditions, have garnered considerable attention due to the environmental hazards associated with aromatic nitro compounds Herein, a novel in-situ synthesis of NCs with zero-valent Au (Au°) is proposed. These materials are based on suspension copolymers with mol. reactors that enable the fabrication of Au° and the enhancement of both the catalytic activity and reusability. NCs were obtained using amino-based nanoreactors (3-14 mmol per g of a polymer) derived from polyethyleneimine (PEI), 1-(2-hydroxyethyl)piperazine (HEP), 1,4-bis(3-aminopropyl)piperazine (APP). The resultant Au@PEI, Au@HEP, and Au@APP NCs were investigated using optical microscopy, SEM, and TEM. Addnl., the physiochem. structures of both the polymeric matrix and Au° were evaluated using, i.a., FT-IR and XRD. The so-obtained NCs were used as nanocatalysts (NCats) for the catalytic hydrogenation of 4-nitrophenol (4-NP) under mild conditions. The method developed for the synthesis of NCs produced gold-based NCats with 25-37% Au° content. The synergism between the polymeric matrix and Au° enabled the hydrogenation of 4-NP within approx. 30-38 min with a rate constants of 0.071 min-1 (Au@HEP) and 0.028 min-1 (Au@APP) and, resp. The spherical millimetric morphol. of the polymeric support facilitated the facile recyclability of NCats that maintained their catalytic activity for more than 10 cycles of 4-NP reduction
Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about Hydrogenation. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Category: chlorides-buliding-blocks.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics