Skip to Content
Merck
  • Single-step preparation of two-dimensionally organized gold particles via ionic liquid/metal sputter deposition.

Single-step preparation of two-dimensionally organized gold particles via ionic liquid/metal sputter deposition.

Physical chemistry chemical physics : PCCP (2015-04-29)
Daisuke Sugioka, Tatsuya Kameyama, Susumu Kuwabata, Tsukasa Torimoto
ABSTRACT

Sputtering of noble metals, such as Au, Ag, Pd, and Pt, onto room-temperature ionic liquids (RTILs) enabled the formation of monoparticle films composed of spherical noble metal nanoparticles on the liquid surface only when the RTILs used contained hydroxyl-functionalized cations as a component. Sputter deposition of these metals under the same conditions simply produced well-dispersed metal particles without the formation of any films on the solution surface when pure RTILs with non-functionalized cations were employed. Anionic species, even those containing a hydroxyl group, did not significantly affect the formation of the particle film on the RTIL surface or dispersion of particles in the solution. The size of Au particles could be controlled by varying the sputtering condition regardless of the two-dimensional particle density, which was determined by the composition of RTILs used. An Au monoparticle film on the RTIL surface was easily transferred onto various solid substrates via the horizontal liftoff method without large aggregation even when the substrate surface was highly curved.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
1-Butyl-3-methylimidazolium tetrafluoroborate, ≥97.0% (HPLC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Methyl-3-octylimidazolium tetrafluoroborate, ≥97.0% (HPLC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) trifluoroacetic acid, suitable for HPLC
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (v/v) trifluoroacetic acid
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile solution, contains 0.1 % (v/v) formic acid, suitable for HPLC
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, ≥98% (HPLC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Butyl-3-methylimidazolium tetrafluoroborate, ≥98%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Ethyl-3-methylimidazolium acetate, 97%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile solution, contains 10.0% acetone, 0.05% formic acid, 40.0% 2-propanol
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Ethyl-3-methylimidazolium acetate, ≥95.0% (HPLC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Ethyl-3-methylimidazolium ethyl sulfate, ≥95%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile solution, contains 0.05 % (w/v) ammonium formate, 5 % (v/v) water, 0.1 % (v/v) formic acid, suitable for HPLC
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, anhydrous, 99.8%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, ≥99.5%, ACS reagent
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, for residue analysis, JIS 5000
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, electronic grade, 99.999% trace metals basis
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, HPLC Plus, ≥99.9%, poly-coated bottles
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, for chromatography
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, ≥99.8%, suitable for HPLC
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, JIS special grade, ≥99.5%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, SAJ first grade, ≥99.0%
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, ≥99.8%, for residue analysis, JIS 300
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
Acetonitrile, ≥99.8%, for residue analysis, JIS 1000
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Ethyl-3-methylimidazolium tetrafluoroborate, ≥98% (HPLC)
SKU
Pack Size
Availability
Price
Quantity
Sigma-Aldrich
1-Butyl-3-methylimidazolium thiocyanate, ≥95%
SKU
Pack Size
Availability
Price
Quantity
Supelco
Acetonitrile, HPLC grade, ≥99.93%
SKU
Pack Size
Availability
Price
Quantity