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Shubin Y, Plyusnin P, Sharafutdinov M. In situ synchrotron study of Au-Pd nanoporous alloy formation by single-source precursor thermolysis. Nanotechnology. 2012;23(40):405302doi: 10.1088/0957-4484/23/40/405302.
Shubin, Y., Plyusnin, P., & Sharafutdinov, M. (2012). In situ synchrotron study of Au-Pd nanoporous alloy formation by single-source precursor thermolysis. Nanotechnology, 23(40), 405302. https://doi.org/10.1088/0957-4484/23/40/405302
Shubin, Yury, et al. "In situ synchrotron study of Au-Pd nanoporous alloy formation by single-source precursor thermolysis." Nanotechnology vol. 23,40 (2012): 405302. doi: https://doi.org/10.1088/0957-4484/23/40/405302
Shubin Y, Plyusnin P, Sharafutdinov M. In situ synchrotron study of Au-Pd nanoporous alloy formation by single-source precursor thermolysis. Nanotechnology. 2012 Oct 12;23(40):405302. doi: 10.1088/0957-4484/23/40/405302. Epub 2012 Sep 18. PMID: 22990050.
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Nanotechnology. 2012 Oct 12;23(40):405302. doi: 10.1088/0957-4484/23/40/405302. Epub 2012 Sep 18.

In situ synchrotron study of Au-Pd nanoporous alloy formation by single-source precursor thermolysis.

Nanotechnology

Yury Shubin, Pavel Plyusnin, Marat Sharafutdinov

Affiliations

  1. Nikolaev Institute of Inorganic Chemistry, 3, Academician Lavrentiev Avenue, Novosibirsk, 630090, Russia. [email protected]

PMID: 22990050 DOI: 10.1088/0957-4484/23/40/405302

Abstract

We have successfully prepared a face-centered cubic Au-Pd nanoporous structure (NPS) in a one-pot reaction under thermal decomposition of single-source precursor [Pd(NH(3))(4)][AuCl(4)](2). The precursor employed contains both desired metals 'mixed' on the molecular level, thus providing its significant advantages for obtaining alloys. The observation using a high-resolution transmission electron microscope has shown that the nanostructure was composed of interconnected polycrystalline ligaments with an average diameter of 14 ± 3 nm. The measurements made by energy-dispersive x-ray analysis and powder x-ray diffraction (XRD) confirm that the nanostructure consists of Au(0.67)Pd(0.33) alloy. In situ real-time synchrotron XRD was used to study the formation mechanism for Au-Pd alloy NPS. We provide the correlation of control parameters (such as temperature, rate of increase of temperature and gas atmosphere) with the microstructure and phase behavior of bimetallic products. Under reducing conditions (H(2) atmosphere) the first step is the formation of alloy nanowires. Finally, bimetallic alloy 3D nanostructure is formed after the complete decomposition of the precursor (100 °C).

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