Effect of Nd-doping on soot oxidation activity of Ceria-based nanoparticles synthesized by Glycine Nitrate Process

Sunaina S. Patil, Hari Prasad Dasari, Harshini Dasari

Research output: Contribution to journalArticle

Abstract

Neodymium-doped Ceria (NDC, Nd = 0, 1, 3, 5, 10, 20 and 30 mol %) catalysts were successfully synthesized by Glycine-Nitrate-Process (GNP) and tested for soot oxidation activity. For all NDC catalysts, XRD and Raman spectroscopy analyses showed a fluorite structure of ceria having an F2gRaman active symmetric breathing mode (O-Ce-O). 1NDC catalyst displayed better T50 temperature (427C) followed by 0NDC (435C), and 30NDC showed the highest T50 temperature (460C). From XPS analysis, 1NDC and 0NDC catalysts showed a high amount of Ce3+ concentration and the surface-active oxygen species than compared to other NDC catalysts and thus, resulted in better soot oxidation activity indicating that the surface Ce3+ concentration and surface-active oxygen species play a key descriptor role in tuning the soot oxidation activity of NDC catalysts.

Original languageEnglish
Article number100388
JournalNano-Structures and Nano-Objects
Volume20
DOIs
Publication statusPublished - 01-10-2019
Externally publishedYes

Fingerprint

Soot
Cerium compounds
soot
glycine
Nitrates
Glycine
nitrates
Amino acids
Doping (additives)
Nanoparticles
catalysts
Oxidation
nanoparticles
oxidation
Catalysts
Reactive Oxygen Species
Neodymium
Oxygen
Fluorspar
fluorite

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

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title = "Effect of Nd-doping on soot oxidation activity of Ceria-based nanoparticles synthesized by Glycine Nitrate Process",
abstract = "Neodymium-doped Ceria (NDC, Nd = 0, 1, 3, 5, 10, 20 and 30 mol {\%}) catalysts were successfully synthesized by Glycine-Nitrate-Process (GNP) and tested for soot oxidation activity. For all NDC catalysts, XRD and Raman spectroscopy analyses showed a fluorite structure of ceria having an F2gRaman active symmetric breathing mode (O-Ce-O). 1NDC catalyst displayed better T50 temperature (427∘C) followed by 0NDC (435∘C), and 30NDC showed the highest T50 temperature (460∘C). From XPS analysis, 1NDC and 0NDC catalysts showed a high amount of Ce3+ concentration and the surface-active oxygen species than compared to other NDC catalysts and thus, resulted in better soot oxidation activity indicating that the surface Ce3+ concentration and surface-active oxygen species play a key descriptor role in tuning the soot oxidation activity of NDC catalysts.",
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Effect of Nd-doping on soot oxidation activity of Ceria-based nanoparticles synthesized by Glycine Nitrate Process. / Patil, Sunaina S.; Dasari, Hari Prasad; Dasari, Harshini.

In: Nano-Structures and Nano-Objects, Vol. 20, 100388, 01.10.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of Nd-doping on soot oxidation activity of Ceria-based nanoparticles synthesized by Glycine Nitrate Process

AU - Patil, Sunaina S.

AU - Dasari, Hari Prasad

AU - Dasari, Harshini

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AB - Neodymium-doped Ceria (NDC, Nd = 0, 1, 3, 5, 10, 20 and 30 mol %) catalysts were successfully synthesized by Glycine-Nitrate-Process (GNP) and tested for soot oxidation activity. For all NDC catalysts, XRD and Raman spectroscopy analyses showed a fluorite structure of ceria having an F2gRaman active symmetric breathing mode (O-Ce-O). 1NDC catalyst displayed better T50 temperature (427∘C) followed by 0NDC (435∘C), and 30NDC showed the highest T50 temperature (460∘C). From XPS analysis, 1NDC and 0NDC catalysts showed a high amount of Ce3+ concentration and the surface-active oxygen species than compared to other NDC catalysts and thus, resulted in better soot oxidation activity indicating that the surface Ce3+ concentration and surface-active oxygen species play a key descriptor role in tuning the soot oxidation activity of NDC catalysts.

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