Desorption of surfactant and sintering of surface modified Pd xNi1-x nanoparticles

Kuan Wen Wang; Shu Ru Chung; Wei Hsiu Hung; Tsong P. Perng

Desorption of surfactant and sintering of surface modified Pd _xNi_1-x nanoparticles

Kuan Wen Wang^*, Shu Ru Chung, Wei Hsiu Hung, Tsong P. Perng

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The desorption of surfactant and sintering of surface modified Pd _xNi_1-x nanoparticles are studied. The surface energy of the nanoparticles depends on the composition and is related to the desorption temperature of surfactant from the nanoparticle surface. For the alloys with higher Ni content, the surface energy is higher and the desorption temperature of surfactant is also higher. With the same composition, the desorption temperature of stearic acid (SA) is always higher than that of polyethylene glycol (PEG) because SA has a higher thermal resistance. After surface modification, the surface energy of the nanoparticles is changed. During heating, the more stable nanoparticles have less sintering and grain growth. Surface modification not only changes the surface energy of the nanoparticles but also prevents the nanoparticles from sintering. SA has better thermal resistance than PEG and shows better suppressing of sintering of the nanoparticles.

Original language	English
Title of host publication	2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004
Editors	M. Laudon, B. Romanowicz
Pages	402-405
Number of pages	4
Publication status	Published - 2004
Externally published	Yes
Event	2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004 - Boston, MA, United States Duration: 2004 Mar 7 → 2004 Mar 11

Publication series

Name	2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004
Volume	3

Other

Other	2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004
Country/Territory	United States
City	Boston, MA
Period	2004/03/07 → 2004/03/11

Keywords

Desorption
PdNi
Sintering
Surface modification
TPD

ASJC Scopus subject areas

General Engineering

Cite this

Desorption of surfactant and sintering of surface modified Pd _xNi_1-x nanoparticles. / Wang, Kuan Wen; Chung, Shu Ru; Hung, Wei Hsiu et al.
2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004. ed. / M. Laudon; B. Romanowicz. 2004. p. 402-405 (2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, KW, Chung, SR, Hung, WH & Perng, TP 2004, Desorption of surfactant and sintering of surface modified Pd _xNi_1-x nanoparticles. in M Laudon & B Romanowicz (eds), 2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004. 2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004, vol. 3, pp. 402-405, 2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004, Boston, MA, United States, 2004/03/07.

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title = "Desorption of surfactant and sintering of surface modified Pd xNi1-x nanoparticles",

abstract = "The desorption of surfactant and sintering of surface modified Pd xNi1-x nanoparticles are studied. The surface energy of the nanoparticles depends on the composition and is related to the desorption temperature of surfactant from the nanoparticle surface. For the alloys with higher Ni content, the surface energy is higher and the desorption temperature of surfactant is also higher. With the same composition, the desorption temperature of stearic acid (SA) is always higher than that of polyethylene glycol (PEG) because SA has a higher thermal resistance. After surface modification, the surface energy of the nanoparticles is changed. During heating, the more stable nanoparticles have less sintering and grain growth. Surface modification not only changes the surface energy of the nanoparticles but also prevents the nanoparticles from sintering. SA has better thermal resistance than PEG and shows better suppressing of sintering of the nanoparticles.",

keywords = "Desorption, PdNi, Sintering, Surface modification, TPD",

author = "Wang, {Kuan Wen} and Chung, {Shu Ru} and Hung, {Wei Hsiu} and Perng, {Tsong P.}",

note = "Funding Information: This work was supported by the Ministry of Education of Taiwan under Contract No. A-91-E-FA04-1-4 and the National Science Council of Taiwan under Contract No. NSC-91-2120-E-007-003.; 2004 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2004 ; Conference date: 07-03-2004 Through 11-03-2004",

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AU - Wang, Kuan Wen

AU - Chung, Shu Ru

AU - Hung, Wei Hsiu

AU - Perng, Tsong P.

N1 - Funding Information: This work was supported by the Ministry of Education of Taiwan under Contract No. A-91-E-FA04-1-4 and the National Science Council of Taiwan under Contract No. NSC-91-2120-E-007-003.

PY - 2004

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N2 - The desorption of surfactant and sintering of surface modified Pd xNi1-x nanoparticles are studied. The surface energy of the nanoparticles depends on the composition and is related to the desorption temperature of surfactant from the nanoparticle surface. For the alloys with higher Ni content, the surface energy is higher and the desorption temperature of surfactant is also higher. With the same composition, the desorption temperature of stearic acid (SA) is always higher than that of polyethylene glycol (PEG) because SA has a higher thermal resistance. After surface modification, the surface energy of the nanoparticles is changed. During heating, the more stable nanoparticles have less sintering and grain growth. Surface modification not only changes the surface energy of the nanoparticles but also prevents the nanoparticles from sintering. SA has better thermal resistance than PEG and shows better suppressing of sintering of the nanoparticles.

AB - The desorption of surfactant and sintering of surface modified Pd xNi1-x nanoparticles are studied. The surface energy of the nanoparticles depends on the composition and is related to the desorption temperature of surfactant from the nanoparticle surface. For the alloys with higher Ni content, the surface energy is higher and the desorption temperature of surfactant is also higher. With the same composition, the desorption temperature of stearic acid (SA) is always higher than that of polyethylene glycol (PEG) because SA has a higher thermal resistance. After surface modification, the surface energy of the nanoparticles is changed. During heating, the more stable nanoparticles have less sintering and grain growth. Surface modification not only changes the surface energy of the nanoparticles but also prevents the nanoparticles from sintering. SA has better thermal resistance than PEG and shows better suppressing of sintering of the nanoparticles.

KW - Desorption

KW - PdNi

KW - Sintering

KW - Surface modification

KW - TPD

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