Observations on PVP-protected noble metallic nanoparticle deposits upon heating via in situ synchrotron radiation X-ray diffraction

Jenn Ming Song, Guan Di Chiou, Wei Ting Chen, Shih Yun Chen, Tzu Hsuan Kao, In-Gann Chen, Hsin Yi Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Through monitoring the evolution of the X-ray diffraction peaks, the phase transformation of PVP-protected Ag and Au nanoparticle deposits (NPDs) on electronic substrates of Cu and Ni upon heating in air was investigated via in situ synchrotron radiation X-ray diffraction. With an increasing temperature, the broad diffraction peak of nano-sized Ag and Au particles with the original average diameters of 4.2 nm and 9.6 nm, respectively, became sharp because of particle coarsening and coalescence. Complex phase transitions among Au, Cu, AuCu3 and CuOx were observed, mainly due to the negative enthalpy of mixing between Au and Cu. The interactions between NPDs and the substrates affected the shift of diffraction peaks to lower angles, caused by thermal expansion and also the temperature for the oxide formation. Compared to Au, Ag NPDs did not form intermetallic compounds with Cu and the formation of copper oxides can also be retarded mainly due to the phase separation feature of the Ag-Cu system.

Original languageEnglish
Pages (from-to)5099-5104
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume13
Issue number11
DOIs
Publication statusPublished - 2011 Mar 21

Fingerprint

Synchrotron radiation
synchrotron radiation
Deposits
deposits
Nanoparticles
Heating
X ray diffraction
nanoparticles
heating
Diffraction
Phase transitions
diffraction
x rays
Copper oxides
Coarsening
Substrates
Coalescence
Phase separation
Oxides
Particles (particulate matter)

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Song, Jenn Ming ; Chiou, Guan Di ; Chen, Wei Ting ; Chen, Shih Yun ; Kao, Tzu Hsuan ; Chen, In-Gann ; Lee, Hsin Yi. / Observations on PVP-protected noble metallic nanoparticle deposits upon heating via in situ synchrotron radiation X-ray diffraction. In: Physical Chemistry Chemical Physics. 2011 ; Vol. 13, No. 11. pp. 5099-5104.
@article{55de4e8ddefd4227a5a4aa6664ac5012,
title = "Observations on PVP-protected noble metallic nanoparticle deposits upon heating via in situ synchrotron radiation X-ray diffraction",
abstract = "Through monitoring the evolution of the X-ray diffraction peaks, the phase transformation of PVP-protected Ag and Au nanoparticle deposits (NPDs) on electronic substrates of Cu and Ni upon heating in air was investigated via in situ synchrotron radiation X-ray diffraction. With an increasing temperature, the broad diffraction peak of nano-sized Ag and Au particles with the original average diameters of 4.2 nm and 9.6 nm, respectively, became sharp because of particle coarsening and coalescence. Complex phase transitions among Au, Cu, AuCu3 and CuOx were observed, mainly due to the negative enthalpy of mixing between Au and Cu. The interactions between NPDs and the substrates affected the shift of diffraction peaks to lower angles, caused by thermal expansion and also the temperature for the oxide formation. Compared to Au, Ag NPDs did not form intermetallic compounds with Cu and the formation of copper oxides can also be retarded mainly due to the phase separation feature of the Ag-Cu system.",
author = "Song, {Jenn Ming} and Chiou, {Guan Di} and Chen, {Wei Ting} and Chen, {Shih Yun} and Kao, {Tzu Hsuan} and In-Gann Chen and Lee, {Hsin Yi}",
year = "2011",
month = "3",
day = "21",
doi = "10.1039/c0cp01159b",
language = "English",
volume = "13",
pages = "5099--5104",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "Royal Society of Chemistry",
number = "11",

}

Observations on PVP-protected noble metallic nanoparticle deposits upon heating via in situ synchrotron radiation X-ray diffraction. / Song, Jenn Ming; Chiou, Guan Di; Chen, Wei Ting; Chen, Shih Yun; Kao, Tzu Hsuan; Chen, In-Gann; Lee, Hsin Yi.

In: Physical Chemistry Chemical Physics, Vol. 13, No. 11, 21.03.2011, p. 5099-5104.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observations on PVP-protected noble metallic nanoparticle deposits upon heating via in situ synchrotron radiation X-ray diffraction

AU - Song, Jenn Ming

AU - Chiou, Guan Di

AU - Chen, Wei Ting

AU - Chen, Shih Yun

AU - Kao, Tzu Hsuan

AU - Chen, In-Gann

AU - Lee, Hsin Yi

PY - 2011/3/21

Y1 - 2011/3/21

N2 - Through monitoring the evolution of the X-ray diffraction peaks, the phase transformation of PVP-protected Ag and Au nanoparticle deposits (NPDs) on electronic substrates of Cu and Ni upon heating in air was investigated via in situ synchrotron radiation X-ray diffraction. With an increasing temperature, the broad diffraction peak of nano-sized Ag and Au particles with the original average diameters of 4.2 nm and 9.6 nm, respectively, became sharp because of particle coarsening and coalescence. Complex phase transitions among Au, Cu, AuCu3 and CuOx were observed, mainly due to the negative enthalpy of mixing between Au and Cu. The interactions between NPDs and the substrates affected the shift of diffraction peaks to lower angles, caused by thermal expansion and also the temperature for the oxide formation. Compared to Au, Ag NPDs did not form intermetallic compounds with Cu and the formation of copper oxides can also be retarded mainly due to the phase separation feature of the Ag-Cu system.

AB - Through monitoring the evolution of the X-ray diffraction peaks, the phase transformation of PVP-protected Ag and Au nanoparticle deposits (NPDs) on electronic substrates of Cu and Ni upon heating in air was investigated via in situ synchrotron radiation X-ray diffraction. With an increasing temperature, the broad diffraction peak of nano-sized Ag and Au particles with the original average diameters of 4.2 nm and 9.6 nm, respectively, became sharp because of particle coarsening and coalescence. Complex phase transitions among Au, Cu, AuCu3 and CuOx were observed, mainly due to the negative enthalpy of mixing between Au and Cu. The interactions between NPDs and the substrates affected the shift of diffraction peaks to lower angles, caused by thermal expansion and also the temperature for the oxide formation. Compared to Au, Ag NPDs did not form intermetallic compounds with Cu and the formation of copper oxides can also be retarded mainly due to the phase separation feature of the Ag-Cu system.

UR - http://www.scopus.com/inward/record.url?scp=79952135843&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952135843&partnerID=8YFLogxK

U2 - 10.1039/c0cp01159b

DO - 10.1039/c0cp01159b

M3 - Article

VL - 13

SP - 5099

EP - 5104

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

SN - 1463-9076

IS - 11

ER -