Generation of room-temperature atmospheric H2/Ar microplasma jet driven with pulse-modulated ultrahigh frequency and its application to gold nanoparticle preparation

Shimizu, Yoshiki; Kawaguchi, Kenji; Sasaki, Takeshi; Koshizaki, Naoto
May 2009
Applied Physics Letters;5/11/2009, Vol. 94 Issue 19, p191504
Academic Journal
We developed a technique to prepare gold nanoparticles (AuNPs) by wire spraying employing a room-temperature atmospheric H2/Ar microplasma jet driven with pulsing ultrahigh frequency and to subsequently deposit the AuNPs on nonheat-resistant materials such as paper in ambient air without apparent damage. In this technique, the application of a pulse waveform with higher voltage but rather low duty cycle effectively lowered the time-averaged gas temperature and facilitated preparing AuNPs. The size, crystallinity, and optical absorption of the prepared AuNPs were characterized, and the derivation and size evolution mechanisms were simply discussed based on the characterizations.


Related Articles

  • Electrodeposition of nanostructure objects with pentagonal symmetry. Yasnikov, I.; Vikarchuk, A.; Denisova, D.; Gryzunova, N.; Tsybuskina, I. // Technical Physics;Oct2007, Vol. 52 Issue 10, p1328 

    It is shown that electrodeposition can be used to obtain hollow metallic nanoparticles with pentagonal symmetry and unique properties. This technique seems to be promising for producing fundamentally new nanomaterials in the form of films, coatings, and powders, and also for making nanofilters.

  • Potassium chloride nanowire formation inside a microchannel glass array. Daqing Zhang; Moore, Sam; Jiang Wei; Alkhateeb, Abdullah; Gangadean, Dev; Mahmood, Hasan; Lantrips, Justin; Mcllroy, David N.; LaLonde, Aaron D.; Norton, M. Grant; Young, James S.; Chongmin Wang // Applied Physics Letters;6/27/2005, Vol. 86 Issue 26, p263110 

    The synthesis of KCl nanowires has been achieved by atomic layer deposition inside high aspect ratio channels of microchannel glass. The average diameter of the KCl nanowires is 250 nm, with a minimum observed diameter of 50 nm, and lengths up to 5 μm. The Cl precursor was TaCl5, while the...

  • Reduction of crystalline iron(III) oxyhydroxides using hydroquinone: Influence of phase and particle size. Amy J. Anschutz; R. Lee Penn // Geochemical Transactions;Sep2005, Vol. 6, p60 

    Iron oxides and oxyhydroxides are common and important materials in the environment, and they strongly impact the biogeochemical cycle of iron and other species at the Earth’s surface. These materials commonly occur as nanoparticles in the 3–10 nm size range. This paper...

  • Rapid biological synthesis of silver nanoparticles using plant leaf extracts. Jae Song; Beom Kim // Bioprocess & Biosystems Engineering;Jan2009, Vol. 32 Issue 1, p79 

    Abstract  Five plant leaf extracts (Pine, Persimmon, Ginkgo, Magnolia and Platanus) were used and compared for their extracellular synthesis of metallic silver nanoparticles. Stable silver nanoparticles were formed by treating aqueous solution of AgNO3 with the plant leaf extracts as...

  • Inverse Hall—Petch effect in nanostructured ZnS. Sutheertha Nair; M. Khadar // Journal of Nanoparticle Research;Feb2009, Vol. 11 Issue 2, p485 

    Abstract  Vickers microhardness of compacted nanoparticles of ZnS of average grain sizes 3–12 nm was studied for different compaction pressures. The hardness was found to increase rapidly with load for smaller values of the load and then to become practically independent of load....

  • Newer nanoparticles in hyperthermia treatment and thermometry. C. Chen // Journal of Nanoparticle Research;Apr2009, Vol. 11 Issue 3, p671 

    Abstract  Heating tumors by nanoparticles and resistance in hypoxic tumor cells to a high temperature is emerging as an effective tool in therapeutic oncology as nanomedicine tool. The art of imaging temperature in a tumor at various locations is emerging as the selective approach of...

  • Airborne nanoparticle exposures associated with the manual handling of nanoalumina and nanosilver in fume hoods. Su-Jung Tsai; Earl Ada; Jacqueline Isaacs; Michael Ellenbecker // Journal of Nanoparticle Research;Jan2009, Vol. 11 Issue 1, p147 

    Abstract  Manual handling of nanoparticles is a fundamental task of most nanomaterial research; such handling may expose workers to ultrafine or nanoparticles. Recent studies confirm that exposures to ultrafine or nanoparticles produce adverse inflammatory responses in rodent lungs and...

  • Effects of Hyperbranched Poly(amido-amine)s generation number on synthesis of Ag nanoparticles. Youyi Sun; Yaqing Liu; Zhao Guizhe; Qijin Zhang // Journal of Polymer Research;Aug2008, Vol. 15 Issue 4, p269 

    The synthesis of Ag nanoparticles stabilized Poly(N,N’-methylene bis-acrylamide N-aminoethyl piperazine)(MBA-AEPZ) was reported. The effects of hyperbranched polymer generation number on the size and size distribution of Ag nanoparticles were studied, which were determined from the UV...

  • Nanowire-based dye-sensitized solar cells. Baxter, Jason B.; Aydil, Eray S. // Applied Physics Letters;1/31/2005, Vol. 86 Issue 5, p053114 

    We describe the design and performance of a ZnO nanowire-based dye-sensitized solar cell. ZnO nanowires with a branched structure were employed as the wide-band-gap semiconductor to construct dye-sensitized solar cells which exhibit energy conversion efficiencies of 0.5% with internal quantum...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics