On the growth of small crystals of Cd, Zn, Pt and Rh during electron microscope observations

Amanda K. Petfordlong; David J. Smith; LR Wallenberg; JO Bovin

doi:10.1016/0022-0248(87)90066-2

On the growth of small crystals of Cd, Zn, Pt and Rh during electron microscope observations

Amanda K. Petfordlong, David J. Smith, LR Wallenberg, JO Bovin

Centrum för analys och syntes

Arizona State University

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

The growth of small supported metal crystals under the influence of an electron beam has been studied in real-time using a 400 keV ultra-high-resolution electron microscope. Samples of Pt, Rh, Cd and Zn supported on amorphous C or Si films were prepared ex situ and crystal growth in situ was recorded directly using a TV imaging/video system attached to the microscope. The different types of observed crystal growth are reported: the fcc metals (Pt and Rh) grow by coalescence, or by the addition of atoms along the particle surface followed by structural rearrangements which result in approximately spherical particles. The hcp metals (Cd and Zn) grow in the form of long rafts along the surface of the substrate film.

Originalspråk	engelska
Sidor (från-till)	218-224
Antal sidor	7
Tidskrift	Journal of Crystal Growth
Volym	80
Nummer	2
DOI	https://doi.org/10.1016/0022-0248(87)90066-2
Status	Published - 1987 feb. 1

Ämnesklassifikation (UKÄ)

Materialkemi
Oorganisk kemi

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10.1016/0022-0248(87)90066-2

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title = "On the growth of small crystals of Cd, Zn, Pt and Rh during electron microscope observations",

abstract = "The growth of small supported metal crystals under the influence of an electron beam has been studied in real-time using a 400 keV ultra-high-resolution electron microscope. Samples of Pt, Rh, Cd and Zn supported on amorphous C or Si films were prepared ex situ and crystal growth in situ was recorded directly using a TV imaging/video system attached to the microscope. The different types of observed crystal growth are reported: the fcc metals (Pt and Rh) grow by coalescence, or by the addition of atoms along the particle surface followed by structural rearrangements which result in approximately spherical particles. The hcp metals (Cd and Zn) grow in the form of long rafts along the surface of the substrate film.",

author = "Petfordlong, {Amanda K.} and Smith, {David J.} and LR Wallenberg and JO Bovin",

year = "1987",

month = feb,

day = "1",

doi = "10.1016/0022-0248(87)90066-2",

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T1 - On the growth of small crystals of Cd, Zn, Pt and Rh during electron microscope observations

AU - Petfordlong, Amanda K.

AU - Smith, David J.

AU - Wallenberg, LR

AU - Bovin, JO

PY - 1987/2/1

Y1 - 1987/2/1

N2 - The growth of small supported metal crystals under the influence of an electron beam has been studied in real-time using a 400 keV ultra-high-resolution electron microscope. Samples of Pt, Rh, Cd and Zn supported on amorphous C or Si films were prepared ex situ and crystal growth in situ was recorded directly using a TV imaging/video system attached to the microscope. The different types of observed crystal growth are reported: the fcc metals (Pt and Rh) grow by coalescence, or by the addition of atoms along the particle surface followed by structural rearrangements which result in approximately spherical particles. The hcp metals (Cd and Zn) grow in the form of long rafts along the surface of the substrate film.

AB - The growth of small supported metal crystals under the influence of an electron beam has been studied in real-time using a 400 keV ultra-high-resolution electron microscope. Samples of Pt, Rh, Cd and Zn supported on amorphous C or Si films were prepared ex situ and crystal growth in situ was recorded directly using a TV imaging/video system attached to the microscope. The different types of observed crystal growth are reported: the fcc metals (Pt and Rh) grow by coalescence, or by the addition of atoms along the particle surface followed by structural rearrangements which result in approximately spherical particles. The hcp metals (Cd and Zn) grow in the form of long rafts along the surface of the substrate film.

U2 - 10.1016/0022-0248(87)90066-2

DO - 10.1016/0022-0248(87)90066-2

M3 - Article

SN - 0022-0248

VL - 80

SP - 218

EP - 224

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 2

ER -

On the growth of small crystals of Cd, Zn, Pt and Rh during electron microscope observations

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