Experimental evidences of crystal nucleation and growth of platinum nanoparticles with most characteristic roughness heteromorphologies and nanostructures from homogeneous solution

Nguyen Viet Long, Masayuki Nogami, Cao Minh Thi, Michitaka Ohtaki

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

In our research, Pt nanoparticles by polyol method using AgNO3 were studied by UV-vis-IR spectroscopy, X-ray diffraction analysis, transmission electron microscopy (TEM) and high-resolution (HR) TEM methods. Their specific surfaces were investigated in the controlled size and morphology in the range of 10 nm without AgNO3, and in the range of 20 nm with AgNO 3. Here, AgNO3 is crucial to appearance of polyhedral Pt nanoparticles but their convex or concave roughness characterizations are confirmed in the range of 20 nm without AgNO3. The high crystallization degree of the as-prepared Pt nanoparticles was discovered in the HRTEM evidences. In addition, the interesting complexity of surface roughness showed important evidences of bonding and chemical changes. Re-nucleations and re-crystallizations at their connections by surface attachment were discovered. The results show importance of controlling size and morphology, and big challenge for HRTEM method is predicted, which is how to measure many nanoparticles with high resolution with good quality of fine lattice-fringe systems around 10 nm.

元の言語英語
ページ(範囲)98-117
ページ数20
ジャーナルJournal of Advanced Microscopy Research
7
発行部数2
DOI
出版物ステータス出版済み - 6 1 2012
外部発表Yes

Fingerprint

Platinum
Nanostructures
platinum
Nucleation
roughness
Surface roughness
nucleation
Nanoparticles
nanoparticles
Crystals
crystals
transmission electron microscopy
Polyols
high resolution
High resolution transmission electron microscopy
Crystallization
Ultraviolet spectroscopy
X ray diffraction analysis
attachment
Infrared spectroscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation

これを引用

@article{ba9193830c7e4d639391009c9f36c905,
title = "Experimental evidences of crystal nucleation and growth of platinum nanoparticles with most characteristic roughness heteromorphologies and nanostructures from homogeneous solution",
abstract = "In our research, Pt nanoparticles by polyol method using AgNO3 were studied by UV-vis-IR spectroscopy, X-ray diffraction analysis, transmission electron microscopy (TEM) and high-resolution (HR) TEM methods. Their specific surfaces were investigated in the controlled size and morphology in the range of 10 nm without AgNO3, and in the range of 20 nm with AgNO 3. Here, AgNO3 is crucial to appearance of polyhedral Pt nanoparticles but their convex or concave roughness characterizations are confirmed in the range of 20 nm without AgNO3. The high crystallization degree of the as-prepared Pt nanoparticles was discovered in the HRTEM evidences. In addition, the interesting complexity of surface roughness showed important evidences of bonding and chemical changes. Re-nucleations and re-crystallizations at their connections by surface attachment were discovered. The results show importance of controlling size and morphology, and big challenge for HRTEM method is predicted, which is how to measure many nanoparticles with high resolution with good quality of fine lattice-fringe systems around 10 nm.",
author = "Long, {Nguyen Viet} and Masayuki Nogami and Thi, {Cao Minh} and Michitaka Ohtaki",
year = "2012",
month = "6",
day = "1",
doi = "10.1166/jamr.2012.1103",
language = "English",
volume = "7",
pages = "98--117",
journal = "Journal of Advanced Microscopy Research",
issn = "2156-7573",
publisher = "American Scientific Publishers",
number = "2",

}

TY - JOUR

T1 - Experimental evidences of crystal nucleation and growth of platinum nanoparticles with most characteristic roughness heteromorphologies and nanostructures from homogeneous solution

AU - Long, Nguyen Viet

AU - Nogami, Masayuki

AU - Thi, Cao Minh

AU - Ohtaki, Michitaka

PY - 2012/6/1

Y1 - 2012/6/1

N2 - In our research, Pt nanoparticles by polyol method using AgNO3 were studied by UV-vis-IR spectroscopy, X-ray diffraction analysis, transmission electron microscopy (TEM) and high-resolution (HR) TEM methods. Their specific surfaces were investigated in the controlled size and morphology in the range of 10 nm without AgNO3, and in the range of 20 nm with AgNO 3. Here, AgNO3 is crucial to appearance of polyhedral Pt nanoparticles but their convex or concave roughness characterizations are confirmed in the range of 20 nm without AgNO3. The high crystallization degree of the as-prepared Pt nanoparticles was discovered in the HRTEM evidences. In addition, the interesting complexity of surface roughness showed important evidences of bonding and chemical changes. Re-nucleations and re-crystallizations at their connections by surface attachment were discovered. The results show importance of controlling size and morphology, and big challenge for HRTEM method is predicted, which is how to measure many nanoparticles with high resolution with good quality of fine lattice-fringe systems around 10 nm.

AB - In our research, Pt nanoparticles by polyol method using AgNO3 were studied by UV-vis-IR spectroscopy, X-ray diffraction analysis, transmission electron microscopy (TEM) and high-resolution (HR) TEM methods. Their specific surfaces were investigated in the controlled size and morphology in the range of 10 nm without AgNO3, and in the range of 20 nm with AgNO 3. Here, AgNO3 is crucial to appearance of polyhedral Pt nanoparticles but their convex or concave roughness characterizations are confirmed in the range of 20 nm without AgNO3. The high crystallization degree of the as-prepared Pt nanoparticles was discovered in the HRTEM evidences. In addition, the interesting complexity of surface roughness showed important evidences of bonding and chemical changes. Re-nucleations and re-crystallizations at their connections by surface attachment were discovered. The results show importance of controlling size and morphology, and big challenge for HRTEM method is predicted, which is how to measure many nanoparticles with high resolution with good quality of fine lattice-fringe systems around 10 nm.

UR - http://www.scopus.com/inward/record.url?scp=84870835283&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870835283&partnerID=8YFLogxK

U2 - 10.1166/jamr.2012.1103

DO - 10.1166/jamr.2012.1103

M3 - Article

VL - 7

SP - 98

EP - 117

JO - Journal of Advanced Microscopy Research

JF - Journal of Advanced Microscopy Research

SN - 2156-7573

IS - 2

ER -