Metallopolymers from organically modified polyoxometalates (MOMPs): A review

Yan, Jing; Zheng, Xiwei; Yao, Jianghao; Xu, Peng; Miao, Zhiliang; Li, Jialin; Lv, Zongdi; Zhang, Qiuyu; Yan, Yi

doi:10.1016/j.jorganchem.2019.01.012

Cited by 25 publications

(16 citation statements)

References 84 publications

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“…Note that covalently modified POMs still have the capability for further integration via non-covalent interactions [10]. Because some researchers in this area have already summarized the progress of both strategies [10,15,48,55,56,57,58], herein we select some representative or latest research works to simply illustrate the fabrication strategies of both classes of POM–polymer hybrid materials. The applications of these strategies in preparing PEMs will be demonstrated in detail in Section 4.…”

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

“…Lindqvist, Keggin, Anderson and Dawson, these four types of POMs are usually used in the fabrication of class-II POM–polymer hybrids. Normally, the reactions of covalently modified POMs involve silanization, imidization and esterification [58].…”

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

“…Methods classified by different organic groups covalently linked to POM units were discussed in detail in the review of Dolbecq et al [15]. In terms of the topology of the resultant polymers containing organically modified POMs, it can be divided into different kinds such as side-chain, main-chain, and head-tail, in which representative works were summarized by Wang et al [48] and Yan et al [58].…”

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

“…Although covalent modification can provide precise anchoring sites and avoid the leakage of POM components, the complicated synthesis processes and required non-conventional purification techniques make it quite challenging to fabricate class-II POM–polymer composites compared to those non-covalent POM–polymer hybrids. Furthermore, limited variation of POMs and modified chemistry slow down the development of class-II POM hybrids [58]. So the majority of research works on the POM-based PEMs prefer to choose the non-covalent method.…”

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

“…Structure of distyryl modified [SiW 11 O 39 ] 4- via silanization. Reproduced with permission from [58]. Copyright (2019) Elsevier.…”

Section: Figurementioning

confidence: 99%

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Polyoxometalate–Polymer Hybrid Materials as Proton Exchange Membranes for Fuel Cell Applications

Zhai

2019

Molecules

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As one of the most efficient pathways to provide clean energy, fuel cells have attracted great attention in both academic and industrial communities. Proton exchange membranes (PEMs) or proton-conducting electrolytes are the key components in fuel cell devices, which require the characteristics of high proton conductivity as well as high mechanical, chemical and thermal stabilities. Organic–inorganic hybrid PEMs can provide a fantastic platform to combine both advantages of two components to meet these demands. Due to their extremely high proton conductivity, good thermal stability and chemical adjustability, polyoxometalates (POMs) are regarded as promising building blocks for hybrid PEMs. In this review, we summarize a number of research works on the progress of POM–polymer hybrid materials and related applications in PEMs. Firstly, a brief background of POMs and their proton-conducting properties are introduced; then, the hybridization strategies of POMs with polymer moieties are discussed from the aspects of both noncovalent and covalent concepts; and finally, we focus on the performance of these hybrid materials in PEMs, especially the advances in the last five years. This review will provide a better understanding of the challenges and perspectives of POM–polymer hybrid PEMs for future fuel cell applications.

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Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

Section: Fabrication Strategies Of Pom–polymer Hybrid Materialsmentioning

confidence: 99%

“…Structure of distyryl modified [SiW 11 O 39 ] 4- via silanization. Reproduced with permission from [58]. Copyright (2019) Elsevier.…”

Section: Figurementioning

confidence: 99%

See 3 more Smart Citations

Polyoxometalate–Polymer Hybrid Materials as Proton Exchange Membranes for Fuel Cell Applications

Zhai

2019

Molecules

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Twining Poly(polyoxometalate) Chains into Nanoropes

Zhang

Miao

Ren

et al. 2019

Chemistry A European J

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Organic polymers and inorganic clusters belong to two different disciplines and have completely different properties and structures. When a cluster is attached to the backbone of a polymer as a pendant, the resultant hybrid polymers (polyclusters) exhibit unique behaviours totally different from those of conventional polymers owing to the nanoscale size of the cluster and its particular interactions. Herein, the aggregation of a poly(polyoxometalate)—a polynorbornene backbone with inorganic polyoxometalate cluster pendants—upon addition of a non‐solvent to its dilute solution is reported. A three‐dimensional network of tangled and snake‐like nanothreads was observed. Direct visualisation of individual nanoscale clusters enabled identification of single chains within the nanothreads. These observations suggest that during the process of aggregation, the hybrid polymer forms curved or extended chains as a consequence of an armouring effect in which the collapsed cluster pendants wrap around the backbone. The collapse occurs because they become less soluble in the solvent/non‐solvent mixture. The extended chains then become entwined and form nanoropes consisting of multiple chains wound around each other. This study provides a deeper understanding of the nature of polyclusters and should also prove useful for their future development and application.

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