Intermatrix Synthesis and Characterization of Polymer‐stabilized Functional Metal and Metal Oxide Nanoparticles

Alonso, Amanda; Davies, G. R.; Satti, Amro; Macanás, Jorge; Gun’ko, Yurii K.; Muñoz, Marı́a; Muraviev, Dmitri

doi:10.1002/9781118742655.ch8

Cited by 3 publications

(3 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another important advantage is a stabilizing polymer can serve as support, thus eliminating the need for additional organic or inorganic supports and imparting such valuable properties as flexibility and robustness. Catalytic NP/polymer nanocomposites have been extensively studied, and their structure and properties have been discussed in multiple preceding reviews. − Considering the importance of the development of novel catalytic materials and an avalanche of publications on NP/polymer catalysts in recent years, we will limit this review to a discussion of the most recent publications (appearing in 2017–2018 and the first four months of 2019) from the viewpoint of the influence of the polymer architecture and functionality on the NP formation and catalytic properties.…”

Section: Introductionmentioning

confidence: 99%

Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites

2019

View full text Add to dashboard Cite

Nanoparticle (NP)/polymer nanocomposites received considerable attention because of their important applications including catalysis. Metal and metal oxide NPs may impart catalytic properties to polymer nanocomposites, while polymers with a different structure, functionality, and architecture control the NP formation (size, shape, location, composition, etc.) and in this way, govern catalytic properties of nanocomposites. In this review we will discuss the influence of the polymer nanostructure (thin or grafted layers, polymer ordering, polymer nanopores), architecture (branched vs linear), functional groups (coordinating or ionic), specific properties (reducing, stimuli responsive, conductive), etc. on the formation of metal or metal oxide NPs and the catalytic behavior of the nanocomposites. The development of novel and efficient catalysts is crucial for progress in chemical sciences, and this explains a huge number of publications in this area in recent years. Taking into consideration previous review articles on NP/polymer catalysts, we limited this review to a discussion of a narrow temporal scope (2017–April 2019), while embracing a broad subject scope, i.e., considering any polymers and NPs which form catalytic nanocomposites. This gives us a unique view of the field of catalytic polymer nanocomposites and allows understanding of where the field is going.

show abstract

Section: Introductionmentioning

confidence: 99%

Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites

2019

View full text Add to dashboard Cite

show abstract

“…The synthesis of PS-MNPs was carried out by following the protocol already described. 6,7 The IMS of PS-MNPs inside the polymer matrix could be generally described by the combination of consecutive ion-exchange and reduction steps: (1) loading of the polymer functional groups with M n+ ions (ion-exchange stage) and ( 2) reduction of M n+ to M 0 with a reducing agent. In this particular case, the polymer material was treated firstly with 0.5 M NaCl (sulfonated material) or 0.5 M NaBH 4 (carboxylated material) for 2 h and washed with deionised water so as to convert all the functional groups into the Na + form.…”

mentioning

confidence: 99%

Environmentally-safe bimetallic Ag@Co magnetic nanocomposites with antimicrobial activity

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Silver-cobalt (Ag-Co) bimetallic nanoparticles has become notable in several industries and various fields of science including catalysis, biotechnology and energy storage [5]. Hydrothermal reduction, sol-gel, and co-precipitation procedures have been used to prepare the bimetallic Ag-Co nanoparticles [6].…”

Section: Introductionmentioning

confidence: 99%

Selective Oxidation of Cinnamyl Alcohol to Cinnamaldehyde over Functionalized Multi-Walled Carbon Nanotubes Supported Silver-Cobalt Nanoparticles

et al. 2021

View full text Add to dashboard Cite

The selective oxidation of alcohols to aldehydes has attracted a lot of attention because of its potential use in agrochemicals, fragrances, and fine chemicals. However, due to homogenous catalysis, low yield, low selectivity, and hazardous oxidants, traditional approaches have lost their efficiency. The co-precipitation method was used to synthesize the silver-cobalt bimetallic catalyst supported on functionalized multi-walled carbon nanotubes (Ag-Co/S). Brunauer Emmet Teller (BET), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and X-ray diffraction (XRD) were used to characterize the catalyst. For the oxidation of cinnamyl alcohol (CA) with O2 as an oxidant, the catalyst’s selectivity and activity were investigated. The impacts of several parameters on catalyst’s selectivity and activity, such as time, temperature, solvents, catalyst dosage, and stirring speed, were comprehensively studied. The results revealed that in the presence of Ag-Co/S as a catalyst, O2 could be employed as an effective oxidant for the catalytic oxidation of cinnamyl alcohol to cinnamaldehyde (CD) with 99% selectivity and 90% conversion. In terms of cost effectiveness, catalytic activity, selectivity, and recyclability, Ag-Co/S outperforms the competition. As a result, under the green chemistry methodology, it can be utilized as an effective catalyst for the conversion of CA to CD.

show abstract

Intermatrix Synthesis and Characterization of Polymer‐stabilized Functional Metal and Metal Oxide Nanoparticles

Cited by 3 publications

References 86 publications

Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites

Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites

Environmentally-safe bimetallic Ag@Co magnetic nanocomposites with antimicrobial activity

Selective Oxidation of Cinnamyl Alcohol to Cinnamaldehyde over Functionalized Multi-Walled Carbon Nanotubes Supported Silver-Cobalt Nanoparticles

Contact Info

Product

Resources

About