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  Unconventional photocatalysis in conductive polymers : reversible modulation of PEDOT:PSS conductivity by long-lived poly(heptazine imide) radicals

Savateev, A., Markushyna, Y., Schüßlbauer, C. M., Ullrich, T., Guldi, D. M., & Antonietti, M. (2021). Unconventional photocatalysis in conductive polymers: reversible modulation of PEDOT:PSS conductivity by long-lived poly(heptazine imide) radicals. Angewandte Chemie International Edition, 60(13), 7436-7443. doi:10.1002/anie.202014314.

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 Creators:
Savateev, Aleksandr1, Author              
Markushyna, Yevheniia1, Author              
Schüßlbauer, Christoph M., Author
Ullrich, Tobias, Author
Guldi, Dirk M., Author
Antonietti, Markus2, Author              
Affiliations:
1Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2421702              
2Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

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Free keywords: long-lived radical, semiconductors, conductive polymer, Carbon nitride
 Abstract: In photocatalysis, small organic molecules are converted into desired products using light responsive materials, electromagnetic radiation, and electron mediators.  Substitution of low molecular weight reagents with redox active functional materials may increase the utility of photocatalysis beyond organic synthesis and environmental applications.  Guided by the general principles of photocatalysis, we designed in the current study hybrid nanocomposites composed of n-type semiconducting potassium poly(heptazine imide) (K-PHI), and p-type conducting poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as the redox active substrate. Electric conductivity of the hybrid nanocomposite, possessing optimal K-PHI content, is reversibly modulated combining a series of external stimuli ranging from visible light under inert conditions and to dark conditions under an O 2 atmosphere.  Using a conductive polymer as the redox active substrate, allows studying the photocatalytic processes mediated by semiconducting photocatalysts through electric conductivity measurements.

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Language(s): eng - English
 Dates: 2020-12-012021
 Publication Status: Published in print
 Pages: -
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 Identifiers: DOI: 10.1002/anie.202014314
DOI: 10.1002/ange.202014314
BibTex Citekey: https://doi.org/10.1002/anie.202014314
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Title: Angewandte Chemie International Edition
  Abbreviation : Angew. Chem., Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 60 (13) Sequence Number: - Start / End Page: 7436 - 7443 Identifier: ISSN: 1433-7851

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Title: Angewandte Chemie
  Abbreviation : Angew. Chem.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 133 (13) Sequence Number: - Start / End Page: 7512 - 7520 Identifier: ISSN: 0044-8249