Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts: a characterisation case studyCitation formats

  • External authors:
  • Huan H
  • Abdul B A Nassr
  • Veronica Celorrio
  • Sarah Frances Rebecca Taylor
  • Daniel J. L. Brett
  • Andrea E. Russell

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Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts: a characterisation case study. / H, Huan; Nassr, Abdul B A; Celorrio, Veronica; Taylor, Sarah Frances Rebecca; Puthiyapura, Vinod Kumar; Hardacre, Christopher; J. L. Brett, Daniel; Andrea E. Russell.

In: Faraday Discussions, 2018.

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H, Huan ; Nassr, Abdul B A ; Celorrio, Veronica ; Taylor, Sarah Frances Rebecca ; Puthiyapura, Vinod Kumar ; Hardacre, Christopher ; J. L. Brett, Daniel ; Andrea E. Russell. / Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts: a characterisation case study. In: Faraday Discussions. 2018.

Bibtex

@article{35e6470c552b4fbdb398b32bbf78f5ea,
title = "Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts: a characterisation case study",
abstract = "Comprehensive identification of the phases and atomic configurations of bimetallic nanoparticle catalysts are critical in understanding structure-properties relationships in catalysis. However, control of the structure, whilst retaining the same composition, is challenging. Here, the same carbon supported Pt3Sn catalyst is annealed under air, Ar and H2 resulting in variation of the extent of alloying of the two components. The atmosphere-induced extent of alloying is characterised using a variety of methods including TEM, XRD, XPS, XANES, and EXAFS and is defined as the fraction of Sn present as Sn0 (XPS and XANES) or the ratio of the calculated composition of the bimetallic particle to the nominal composition according to the stoichiometric ratio of the preparation (TEM, XRD, and EXAFS) . The values obtained depend on the structural method used, but the trend air < Ar < H2 annealed samples is consistent. These results are then used to provide insights regarding the electrocatalytic activity of Pt3Sn catalysts for CO, methanol, ethanol, and 1-butanol oxidation and the roles of alloyed Sn and SnO2.",
keywords = "Electrocatalyst, Fuel cell",
author = "Huan H and Nassr, {Abdul B A} and Veronica Celorrio and Taylor, {Sarah Frances Rebecca} and Puthiyapura, {Vinod Kumar} and Christopher Hardacre and {J. L. Brett}, Daniel and {Andrea E. Russell}",
year = "2018",
doi = "10.1039/C7FD00221A",
language = "English",
journal = "Faraday Discussions of the Chemical Society",
issn = "1359-6640",
publisher = "Royal Society of Chemistry",

}

RIS

TY - JOUR

T1 - Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts: a characterisation case study

AU - H, Huan

AU - Nassr, Abdul B A

AU - Celorrio, Veronica

AU - Taylor, Sarah Frances Rebecca

AU - Puthiyapura, Vinod Kumar

AU - Hardacre, Christopher

AU - J. L. Brett, Daniel

AU - Andrea E. Russell,

PY - 2018

Y1 - 2018

N2 - Comprehensive identification of the phases and atomic configurations of bimetallic nanoparticle catalysts are critical in understanding structure-properties relationships in catalysis. However, control of the structure, whilst retaining the same composition, is challenging. Here, the same carbon supported Pt3Sn catalyst is annealed under air, Ar and H2 resulting in variation of the extent of alloying of the two components. The atmosphere-induced extent of alloying is characterised using a variety of methods including TEM, XRD, XPS, XANES, and EXAFS and is defined as the fraction of Sn present as Sn0 (XPS and XANES) or the ratio of the calculated composition of the bimetallic particle to the nominal composition according to the stoichiometric ratio of the preparation (TEM, XRD, and EXAFS) . The values obtained depend on the structural method used, but the trend air < Ar < H2 annealed samples is consistent. These results are then used to provide insights regarding the electrocatalytic activity of Pt3Sn catalysts for CO, methanol, ethanol, and 1-butanol oxidation and the roles of alloyed Sn and SnO2.

AB - Comprehensive identification of the phases and atomic configurations of bimetallic nanoparticle catalysts are critical in understanding structure-properties relationships in catalysis. However, control of the structure, whilst retaining the same composition, is challenging. Here, the same carbon supported Pt3Sn catalyst is annealed under air, Ar and H2 resulting in variation of the extent of alloying of the two components. The atmosphere-induced extent of alloying is characterised using a variety of methods including TEM, XRD, XPS, XANES, and EXAFS and is defined as the fraction of Sn present as Sn0 (XPS and XANES) or the ratio of the calculated composition of the bimetallic particle to the nominal composition according to the stoichiometric ratio of the preparation (TEM, XRD, and EXAFS) . The values obtained depend on the structural method used, but the trend air < Ar < H2 annealed samples is consistent. These results are then used to provide insights regarding the electrocatalytic activity of Pt3Sn catalysts for CO, methanol, ethanol, and 1-butanol oxidation and the roles of alloyed Sn and SnO2.

KW - Electrocatalyst

KW - Fuel cell

U2 - 10.1039/C7FD00221A

DO - 10.1039/C7FD00221A

M3 - Article

JO - Faraday Discussions of the Chemical Society

JF - Faraday Discussions of the Chemical Society

SN - 1359-6640

ER -