Size-selective electrodeposition of meso-scale metal particles: A general method

H. Liu; F. Favier; K. Ng; M. P. Zach; R. M. Penner

doi:10.1016/S0013-4686(01)00747-2

Size-selective electrodeposition of meso-scale metal particles: A general method

H. Liu, F. Favier, K. Ng, M. P. Zach, R. M. Penner

Research output: Contribution to journal › Article › peer-review

149 Scopus citations

Abstract

Metal nano- and microparticles that are narrowly dispersed in diameter can be electrodeposited on graphite basal plane surfaces using the two-step method: First, a voltage pulse with a duration of 5 ms and an overpotential, η=-500 mV was used to nucleate metal particles on the graphite surface. Then, a growth pulse with an overpotential, η, of -20 to -250 mV was applied to grow the metal particles obtained in step 1 to the desired final diameter. For a variety of metals, including silver, gold, platinum, molybdenum, and nickel, this 'slow-growth' method yielded dispersions of particles ranging in diameter from 50 nm to 2 μm having a relative standard deviation (RSD_dia=σ_dia/〈dia〉) as low as 7%.

Original language	English
Pages (from-to)	671-677
Number of pages	7
Journal	Electrochimica Acta
Volume	47
Issue number	5
DOIs	https://doi.org/10.1016/S0013-4686(01)00747-2
State	Published - Dec 3 2001
Externally published	Yes

Funding

This work was funded by the National Science Foundation (#DMR-9876479) and the Petroleum Research Fund of the American Chemical Society (#33751-AC5). The authors also gratefully acknowledge the financial support of the A.P. Sloan Foundation Fellowship.

Keywords

Electrodeposition
Nano and micro particles
Slow-growth method

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10.1016/S0013-4686(01)00747-2

Cite this

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abstract = "Metal nano- and microparticles that are narrowly dispersed in diameter can be electrodeposited on graphite basal plane surfaces using the two-step method: First, a voltage pulse with a duration of 5 ms and an overpotential, η=-500 mV was used to nucleate metal particles on the graphite surface. Then, a growth pulse with an overpotential, η, of -20 to -250 mV was applied to grow the metal particles obtained in step 1 to the desired final diameter. For a variety of metals, including silver, gold, platinum, molybdenum, and nickel, this 'slow-growth' method yielded dispersions of particles ranging in diameter from 50 nm to 2 μm having a relative standard deviation (RSDdia=σdia/〈dia〉) as low as 7%.",

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AB - Metal nano- and microparticles that are narrowly dispersed in diameter can be electrodeposited on graphite basal plane surfaces using the two-step method: First, a voltage pulse with a duration of 5 ms and an overpotential, η=-500 mV was used to nucleate metal particles on the graphite surface. Then, a growth pulse with an overpotential, η, of -20 to -250 mV was applied to grow the metal particles obtained in step 1 to the desired final diameter. For a variety of metals, including silver, gold, platinum, molybdenum, and nickel, this 'slow-growth' method yielded dispersions of particles ranging in diameter from 50 nm to 2 μm having a relative standard deviation (RSDdia=σdia/〈dia〉) as low as 7%.

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Size-selective electrodeposition of meso-scale metal particles: A general method

Abstract

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Keywords

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