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Urethane functions can reduce metal salts under hydrothermal conditions : synthesis of noble metal nanoparticles on flexible sponges applied in semi-automated organic reduction

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2023

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Bernardi, Johannes
Lassus, Arthur
Virgilio, Nick

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Journal of Materials Chemistry A. Royal Society of Chemistry (RSC). 2023, 11(24), pp. 12703-12712. ISSN 2050-7488. eISSN 2050-7496. Available under: doi: 10.1039/d2ta09405c

Zusammenfassung

We report an additive-free one-pot hydrothermal synthesis of Au, Ag, Pd, and alloy AuPd nanoparticles (NPs) anchored on commercial polyurethane (PU) foams. While unable to reduce the precursor metal salts at room temperature, PU is able to serve as a reducing agent under hydrothermal conditions. The resulting NP@PU sponge materials perform comparably to reported state-of-the-art reduction catalysts, and are additionally very well suited for use in semi-automated synthesis: the NP anchoring is strong enough and the support flexible enough to be used as a ‘catalytic sponge’ that can be manipulated with a robotic arm, i.e., be repeatedly dipped into and drawn out of solutions, wrung out, and re-soaked.

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540 Chemie

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ISO 690GAZIL, Olivier, Johannes BERNARDI, Arthur LASSUS, Nick VIRGILIO, Miriam M. UNTERLASS, 2023. Urethane functions can reduce metal salts under hydrothermal conditions : synthesis of noble metal nanoparticles on flexible sponges applied in semi-automated organic reduction. In: Journal of Materials Chemistry A. Royal Society of Chemistry (RSC). 2023, 11(24), pp. 12703-12712. ISSN 2050-7488. eISSN 2050-7496. Available under: doi: 10.1039/d2ta09405c
BibTex
@article{Gazil2023Ureth-66388,
  year={2023},
  doi={10.1039/d2ta09405c},
  title={Urethane functions can reduce metal salts under hydrothermal conditions : synthesis of noble metal nanoparticles on flexible sponges applied in semi-automated organic reduction},
  number={24},
  volume={11},
  issn={2050-7488},
  journal={Journal of Materials Chemistry A},
  pages={12703--12712},
  author={Gazil, Olivier and Bernardi, Johannes and Lassus, Arthur and Virgilio, Nick and Unterlass, Miriam M.}
}
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    <dcterms:abstract>We report an additive-free one-pot hydrothermal synthesis of Au, Ag, Pd, and alloy AuPd nanoparticles (NPs) anchored on commercial polyurethane (PU) foams. While unable to reduce the precursor metal salts at room temperature, PU is able to serve as a reducing agent under hydrothermal conditions. The resulting NP@PU sponge materials perform comparably to reported state-of-the-art reduction catalysts, and are additionally very well suited for use in semi-automated synthesis: the NP anchoring is strong enough and the support flexible enough to be used as a ‘catalytic sponge’ that can be manipulated with a robotic arm, i.e., be repeatedly dipped into and drawn out of solutions, wrung out, and re-soaked.</dcterms:abstract>
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