Thiol‐Functionalized Organic Porous Polymers as a Support for Gold Nanoparticles and Its Catalytic Applications

Zhong, Aiqing; Xu, Yang; He, Zidong; Zhang, Hui; Wang, Tianqi; Zhou, Min; Xiong, Linfeng; Huang, Kun

doi:10.1002/macp.201700044

Cited by 12 publications

(10 citation statements)

References 50 publications

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“…The Au NP size is consistent with the location of the NPs inside the polymer mesopores. The stabilizing influence of the sulfur group on the Au NPs due to the Au–S bond formation was also reported elsewhere …”

Section: Porous Polymerssupporting

confidence: 61%

“…The stabilizing influence of the sulfur group on the Au NPs due to the Au−S bond formation was also reported elsewhere. 149 The Au/PTPA catalyst showed exceptionally high activity in the 4-NP reduction (rate constant of 0.75 min −1 ) as well as in the reduction of Congo red and MB using NaBH 4 with significant preservation of the activity in a repeated use. A hyper-cross-linked polymer enriched with phosphorus and sulfur and containing Ru NPs allowed for high yields of various aminoarenes (prepared by nitroarene reduction with NaBH 4 ), but reactions were very slow.…”

Section: Polymers With Hierarchical Porositymentioning

confidence: 99%

“…A hierarchical hyper-cross-linked POP functionalized with thiol groups (POP-SH) for Au NP stabilization has been synthesized combining hyper-cross-linking and molecular templating of functionalized bottlebrush copolymers (Figure 14). 149 The POP-SH morphology presented in Figure 15 includes interconnected bottlebrushes with the nanotube length of 45.0 ± 5.0 nm and the nanotube diameter of 8.0 ± 1.0 nm. Porosity measurements showed a broad pore size distribution between 1 and 10 nm with the dominant pore sizes of ∼1.3 and 5.1 nm.…”

Section: Polymers With Hierarchical Porositymentioning

confidence: 99%

Section: Porous Polymersmentioning

confidence: 99%

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

2019

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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.

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Section: Porous Polymerssupporting

confidence: 61%

Section: Polymers With Hierarchical Porositymentioning

confidence: 99%

Section: Polymers With Hierarchical Porositymentioning

confidence: 99%

Section: Porous Polymersmentioning

confidence: 99%

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

2019

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“…This method allowed Au NPs (the diameter is ≈3.0 ± 1.0 nm) to be loaded in 18% with uniform dispersion. [ 65 ] This Au NPs exhibited a high catalytic activity and excellent stability for the selective oxidation of benzyl alcohol in water.…”

Section: Catalytic Applications Of Hypercrosslinked Polymers Construcmentioning

confidence: 99%

Low‐Cost Hypercrosslinked Polymers by Direct Knitting Strategy for Catalytic Applications

Son

et al. 2020

Adv Funct Materials

114

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Direct knitting of nucleophilic arene monomers in the presence of electrophilic cross‐linker, like formaldehyde dimethyl acetal, is proven to be a cost‐effective and versatile method for the synthesis of porous organic polymers. The resulting hypercrosslinked polymers (HCPs) are featured by hierarchical porous structure, high surface area, and pore volume. Coordinating functional groups can be easily installed with this method into the rigid aryl network. Direct knitting to HCPs has therefore been widely used in preparing heterogeneous solid catalysts. Wise selection of monomers with rational design of 3D structure and the synergy between the HCP support and the catalytically active species often lead to high efficiency of tailor‐made catalysts without sophisticated operations. On account of all these excellent properties, enthusiasm of researchers to use HCPs in catalysis is increasing rapidly. This review documents the necessity, feasibility, and the great contributions of using HCPs as invaluable tools for catalysis research, and summarizes state of the art of this chemistry. Similar type catalysts obtained by one‐step Scholl reaction are also included in this review.

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Switchable Synthesis of Aldehydes and Carboxylic Acids from Alcohols by Platinum‐Catalysed Hydrogen Peroxide Oxidation Using Flow Reactors

et al. 2022

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Switchable synthesis of aldehydes and carboxylic acids from alcohols by Pt‐catalysed H2O2 oxidation is performed for the first time using flow reactors. The use of an optimised amount of zero‐valent Pt black diluted with SiO2 catalyst demonstrates controlled H2O2 oxidation of allylic alcohols, benzyl alcohols, and aliphatic alcohols. From a probe reaction, Pt catalytic activity to produce a carboxylic acid from the corresponding alcohol improves depending on the temperature increasing from 40 to 90 °C. The set of reaction conditions about the combination of temperature and flow rate as a simple trigger works sensitively to divide the formation of aldehydes and carboxylic acids without tuning by additives.

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Thiol‐Functionalized Organic Porous Polymers as a Support for Gold Nanoparticles and Its Catalytic Applications

Cited by 12 publications

References 50 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

Low‐Cost Hypercrosslinked Polymers by Direct Knitting Strategy for Catalytic Applications

Switchable Synthesis of Aldehydes and Carboxylic Acids from Alcohols by Platinum‐Catalysed Hydrogen Peroxide Oxidation Using Flow Reactors

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