Organic piezocatalyst polyimide: molecular structure tailoring and robust built-in electric field

Zhang, Yan; Liu, Jingang; Hu, Cheng; Zhi, Xinxin; Pan, Zhen; Yu, Hongjian; Han, Jie; Huang, Hongwei

doi:10.1039/d4ta00167b

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta00167b

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Organic piezocatalyst polyimide: molecular structure tailoring and robust built-in electric field

Yan Zhang,

Jingang Liu,

Cheng Hu

et al.

Abstract: Developing high-performance piezocatalyst has been regarded as an efficacious strategy to promote sustainable development of environment and energy industry. However, reported piezocatalysts suffer from low conversion efficiency and majority of...

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Cited by 4 publications

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Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Zhang,

Sun,

Ren

et al. 2024

Angewandte Chemie

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Chiral catalysts for asymmetric catalysis represent a crucial research focus in chemistry and materials science. However, a few cases about chiral‐dependent photocatalysts primarily focus on plasmonic noble metals. Particularly, developing chiral nano‐catalysts that can be driven by mechanical energy remains in the blank stage. Herein, organic polymer‐based enantiomers, chiral polar polyimide (PI) microspheric nano‐assembly are synthesized as novel bifunctional catalysts for asymmetric photocatalysis and piezocatalysis. The PI catalyst enantiomers present enantioselectivity towards left‐ and right‐circularly polarized light, demonstrating chiral‐dependent H2O2 photoproduction. Interestingly, enantioselectivity of the catalyst reverses under irradiation of different bands, presenting tunability in the interaction between chiral catalysts and circularly polarized light. For the first time, enantioselective piezocatalytic behavior is demonstrated by the chiral polar PI catalysts. They show remarkable chiral preference for asymmetric Diels‐Alder reaction and enantioselective conversion of tyrosine substrates under ultrasonic vibration. The findings provide a new perspective into exploring metal‐free chiral catalysts and their asymmetric catalysis applications across multiple energy forms.

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Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Zhang,

Sun,

Ren

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Zhang,

Sun,

Ren

et al. 2024

Angew Chem Int Ed

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Electric Fields in Polymeric Systems

Rothermund,

Koehler,

Vaissier Welborn

2024

Chem. Rev.

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Polymer-based electronic devices are limited by slow transport and recombination of newly separated charges. Built-in electric fields, which arise from compositional gradients, are known to improve charge separation, directional charge transport, and to reduce recombination. Yet, the optimization of these fields through the rational design of polymeric materials is not prevalent. Indeed, polymers are disordered and generate nonuniform electric fields that are hard to measure, and therefore, hard to optimize. Here, we review work focusing on the intentional optimization of electric fields in polymeric systems with applications to catalysis, energy conversion, and storage. This includes chemical tuning of constituent monomers, linkers, morphology, etc. that result in stronger molecular dipoles, polarizability or crystallinity. We also review techniques to characterize electric fields in polymers and emerging processing strategies based on electric fields. These studies demonstrate the benefits of optimizing electric fields in polymers. However, rational design is often restricted to the molecular scale, deriving new pendants on, or linkers between, monomers. This does not always translate in strong electric fields at the polymer level, because they strongly depend on the monomer orientation. A better control of the morphology and monomer-to-polymer scaling relationship is therefore crucial to enhance electric fields in polymeric materials. CONTENTS 1. Introduction 13331 2. Theory 13333 3. Enhancing Electric Fields in Polymeric Materials for Electronic Devices 13336 3.1. Enhancing Electric Fields by Monomer Design 13336 3.2. Enhancing Electric Fields by Linker Design 13340 3.3. Enhancing Electric Fields by Supramolecular Architecture Tuning 13343 3.4. Opportunities for Electric Field Optimization 13344 4. Novel Polymer Classes to Enhance Electric Fields 13347 4.1.

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Organic piezocatalyst polyimide: molecular structure tailoring and robust built-in electric field

Abstract: Developing high-performance piezocatalyst has been regarded as an efficacious strategy to promote sustainable development of environment and energy industry. However, reported piezocatalysts suffer from low conversion efficiency and majority of...

Cited by 4 publications

References 48 publications

Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Chiral Polar Bifunctional Polyimide Enantiomers for Asymmetric Photo‐ and Piezo‐Catalysis

Electric Fields in Polymeric Systems

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