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   <ow:Publication rdf:about="oai:digibug.ugr.es:10481/67857">
      <dc:title>Biotechnological synthesis of Pd/Ag and Pd/Au nanoparticles for enhanced Suzuki–Miyaura cross-coupling activity</dc:title>
      <dc:creator>Kimber, Richard L.</dc:creator>
      <dc:creator>Merroun, Mohamed Larbi</dc:creator>
      <dc:description>Bimetallic nanoparticle catalysts have attracted considerable&#xd;
attention due to their unique chemical and&#xd;
physical properties. The ability of metal-reducing&#xd;
bacteria to produce highly catalytically active&#xd;
monometallic nanoparticles is well known; however,&#xd;
the properties and catalytic activity of bimetallic&#xd;
nanoparticles synthesized with these organisms is&#xd;
not well understood. Here, we report the one-pot&#xd;
biosynthesis of Pd/Ag (bio-Pd/Ag) and Pd/Au (bio-Pd/&#xd;
Au) nanoparticles using the metal-reducing bacterium,&#xd;
Shewanella oneidensis, under mild conditions.&#xd;
Energy dispersive X-ray analyses performed using scanning transmission electron microscopy&#xd;
(STEM) revealed the presence of both metals (Pd/Ag&#xd;
or Pd/Au) in the biosynthesized nanoparticles. X-ray&#xd;
absorption near-edge spectroscopy (XANES) suggested&#xd;
a significant contribution from Pd(0) and Pd&#xd;
(II) in both bio-Pd/Ag and bio-Pd/Au, with Ag and Au&#xd;
existing predominately as their metallic forms.&#xd;
Extended X-ray absorption fine-structure spectroscopy&#xd;
(EXAFS) supported the presence of multiple&#xd;
Pd species in bio-Pd/Ag and bio-Pd/Au, as inferred&#xd;
from Pd–Pd, Pd–O and Pd–S shells. Both bio-Pd/Ag&#xd;
and bio-Pd/Au demonstrated greatly enhanced catalytic&#xd;
activity towards Suzuki–Miyaura cross-coupling&#xd;
compared to a monometallic Pd catalyst, with&#xd;
bio-Pd/Ag significantly outperforming the others. The&#xd;
catalysts were very versatile, tolerating a wide range&#xd;
of substituents. This work demonstrates a green synthesis&#xd;
method for novel bimetallic nanoparticles that&#xd;
display significantly enhanced catalytic activity compared&#xd;
to their monometallic counterparts.</dc:description>
      <dc:date>2021-04-08T09:30:21Z</dc:date>
      <dc:date>2021-04-08T09:30:21Z</dc:date>
      <dc:date>2021-03</dc:date>
      <dc:type>info:eu-repo/semantics/article</dc:type>
      <dc:identifier>Kimber, R. L., Parmeggiani, F., Neill, T. S., Merroun, M. L., Goodlet, G., Powell, N. A., ... &amp; Lloyd, J. R. (2021). Biotechnological synthesis of Pd/Ag and Pd/Au nanoparticles for enhanced Suzuki–Miyaura cross‐coupling activity. Microbial Biotechnology. [doi:10.1111/1751-7915.13762]</dc:identifier>
      <dc:identifier>http://hdl.handle.net/10481/67857</dc:identifier>
      <dc:identifier>10.1111/1751-7915.13762</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by/3.0/es/</dc:rights>
      <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
      <dc:rights>Atribución 3.0 España</dc:rights>
      <dc:publisher>Wiley</dc:publisher>
   </ow:Publication>
</rdf:RDF>