Small-angle neutron scattering on hydrogen- and deuterium-doped nanocrystalline palladium

T. Striffler; U. Stuhr; H. Wipf; H. Hahn; S. Egelhaaf

doi:10.1016/S0921-4526(99)01631-2

Small-angle neutron scattering on hydrogen- and deuterium-doped nanocrystalline palladium

T. Striffler
, U. Stuhr
, H. Wipf
, H. Hahn
, S. Egelhaaf

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The microstructure of a nanocrystalline Pd sample prepared by inert gas condensation was studied by small-angle neutron scattering. To increase information, the contrast of the sample was additionally varied by doping it with H and D (c_H = 3.2 at%, c_D = 3.5 at%). We modeled the measured intensity by a Porod contribution caused by large heterogeneities (pores) and a second contribution caused by a logarithmic normal distribution of spherical grains surrounded by shells of reduced Pd density describing the grain boundaries. This model yields a volume-weighted mean grain radius of 10 nm and a grain boundary thickness of approximately 0.8 nm. The contrast variation due to doping with H and D indicated that H and D were mainly located in grain boundaries.

Original language	English (US)
Pages (from-to)	880-881
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	276-278
DOIs	https://doi.org/10.1016/S0921-4526(99)01631-2
State	Published - Mar 2000
Externally published	Yes
Event	2nd European Conference on Neutron Scattering (ECNS '99) - Budapest, Hung Duration: Sep 1 1999 → Sep 4 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(99)01631-2

Cite this

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title = "Small-angle neutron scattering on hydrogen- and deuterium-doped nanocrystalline palladium",

abstract = "The microstructure of a nanocrystalline Pd sample prepared by inert gas condensation was studied by small-angle neutron scattering. To increase information, the contrast of the sample was additionally varied by doping it with H and D (cH = 3.2 at\%, cD = 3.5 at\%). We modeled the measured intensity by a Porod contribution caused by large heterogeneities (pores) and a second contribution caused by a logarithmic normal distribution of spherical grains surrounded by shells of reduced Pd density describing the grain boundaries. This model yields a volume-weighted mean grain radius of 10 nm and a grain boundary thickness of approximately 0.8 nm. The contrast variation due to doping with H and D indicated that H and D were mainly located in grain boundaries.",

author = "T. Striffler and U. Stuhr and H. Wipf and H. Hahn and S. Egelhaaf",

year = "2000",

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doi = "10.1016/S0921-4526(99)01631-2",

language = "English (US)",

volume = "276-278",

pages = "880--881",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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note = "2nd European Conference on Neutron Scattering (ECNS '99) ; Conference date: 01-09-1999 Through 04-09-1999",

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TY - JOUR

T1 - Small-angle neutron scattering on hydrogen- and deuterium-doped nanocrystalline palladium

AU - Striffler, T.

AU - Stuhr, U.

AU - Wipf, H.

AU - Hahn, H.

AU - Egelhaaf, S.

PY - 2000/3

Y1 - 2000/3

N2 - The microstructure of a nanocrystalline Pd sample prepared by inert gas condensation was studied by small-angle neutron scattering. To increase information, the contrast of the sample was additionally varied by doping it with H and D (cH = 3.2 at%, cD = 3.5 at%). We modeled the measured intensity by a Porod contribution caused by large heterogeneities (pores) and a second contribution caused by a logarithmic normal distribution of spherical grains surrounded by shells of reduced Pd density describing the grain boundaries. This model yields a volume-weighted mean grain radius of 10 nm and a grain boundary thickness of approximately 0.8 nm. The contrast variation due to doping with H and D indicated that H and D were mainly located in grain boundaries.

AB - The microstructure of a nanocrystalline Pd sample prepared by inert gas condensation was studied by small-angle neutron scattering. To increase information, the contrast of the sample was additionally varied by doping it with H and D (cH = 3.2 at%, cD = 3.5 at%). We modeled the measured intensity by a Porod contribution caused by large heterogeneities (pores) and a second contribution caused by a logarithmic normal distribution of spherical grains surrounded by shells of reduced Pd density describing the grain boundaries. This model yields a volume-weighted mean grain radius of 10 nm and a grain boundary thickness of approximately 0.8 nm. The contrast variation due to doping with H and D indicated that H and D were mainly located in grain boundaries.

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U2 - 10.1016/S0921-4526(99)01631-2

DO - 10.1016/S0921-4526(99)01631-2

M3 - Conference article

AN - SCOPUS:0033899082

SN - 0921-4526

VL - 276-278

SP - 880

EP - 881

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - 2nd European Conference on Neutron Scattering (ECNS '99)

Y2 - 1 September 1999 through 4 September 1999

ER -

Small-angle neutron scattering on hydrogen- and deuterium-doped nanocrystalline palladium

Abstract

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