Search Results - "Pakkanen, A."

Micro–Micro Hierarchy Replacing Micro–Nano Hierarchy: A Precisely Controlled Way To Produce Wear-Resistant Superhydrophobic Polymer Surfaces by Huovinen, Eero, Hirvi, Janne, Suvanto, Mika, Pakkanen, Tapani A

“…Superhydrophobic polymer surfaces are typically fabricated by combining hierarchical micro-nanostructures. The surfaces have a great technological potential…”
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Swelling pressure of Na- and Ca-montmorillonites in saline environments: A molecular dynamics study by Akinwunmi, Bukunmi, Hirvi, Janne T., Kasa, Seppo, Pakkanen, Tapani A.

“…[Display omitted] •Salinity has a negative influence on swelling pressure of bentonite clays.•The influence of salinity on swelling pressure is dependent on…”
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Ectomycorrhizal community structure varies among Norway spruce (Picea abies) clones by Korkama, T, Pakkanen, A, Pennanen, T

“…• In northern boreal forests, the diversity of ectomycorrhizal (ECM) species is much greater than that of their host trees. This field study investigated the…”
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Modeling the Stabilization of Surface Defects by Donors in Ziegler–Natta Catalyst Support by Bazhenov, Andrey, Linnolahti, Mikko, Pakkanen, Tapani A, Denifl, Peter, Leinonen, Timo

“…We describe a concept for modeling structural defects in crystalline magnesium dichloride used as a support in the Ziegler–Natta polymerization catalysis. The…”
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Role of the Interface between Pd and PdO in Methane Dissociation by Kinnunen, Niko M, Hirvi, Janne T, Suvanto, Mika, Pakkanen, Tapani A

“…Dissociation of the first C–H bond of methane was investigated at the interface of partial PdO(101) monolayer and supporting Pd(100) surface with density…”
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Adhesive friction and wear of micro-pillared polymers in dry contact by Voyer, Joel, Jiang, Yu, Pakkanen, Tapani A., Diem, Alexander

“…Elastomers are currently used intensively in various industrial applications. However, their deployment in dry tribological contact is normally inhibited by…”
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Methane combustion activity of Pd–PdOx–Pt/Al2O3 catalyst: The role of platinum promoter by Kinnunen, Niko M., Hirvi, Janne T., Suvanto, Mika, Pakkanen, Tapani A.

“…[Display omitted] ► Addition of Pt improves aging durability of the Pd–PdOx catalyst. ► Active phase of the catalysts consists of metallic (M) and metal oxide…”
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Procedure to tailor activity of methane combustion catalyst: Relation between Pd/PdOx active sites and methane oxidation activity by KINNUNEN, Niko M, HIRVI, Janne T, VENÄLÄINEN, Tapani, SUVANTO, Mika, PAKKANEN, Tapani A

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Modification of polycarbonate surface properties by nano-, micro-, and hierarchical micro–nanostructuring by Saarikoski, Inka, Suvanto, Mika, Pakkanen, Tapani A.

“…Polycarbonate surfaces were patterned with nanopillars, microbumps, or nanopillars superimposed on microbumps. Patterning was achieved by applying nanoporous…”
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Tetragold(I) Complexes: Solution Isomerization and Tunable Solid-State Luminescence by Dau, Thuy Minh, Chen, Yi-An, Karttunen, Antti J, Grachova, Elena V, Tunik, Sergey P, Lin, Ke-Ting, Hung, Wen-Yi, Chou, Pi-Tai, Pakkanen, Tapani A, Koshevoy, Igor O

“…In this study, a new family of tetranuclear gold(I) triphosphine derivatives bearing alkynyl and thiolate groups have been efficiently synthesized by treating…”
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Interactions between Extraradical Ectomycorrhizal mycelia, Microbes Associated with the Mycelia and Growth Rate of Norway spruce (Picea abies) Clones by T. Korkama, H. Fritze, A. Pakkanen, Pennanen, T.

“…• Despite their ecological relevance, field studies of the extraradical mycelia of ectomycorrhizal (ECM) fungi are rare. Here we examined in situ interactions…”
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Highly Luminescent Octanuclear AuI-CuI Clusters Adopting Two Structural Motifs: The Effect of Aliphatic Alkynyl Ligands by Koshevoy, Igor O., Lin, Chia-Li, Karttunen, Antti J., Jänis, Janne, Haukka, Matti, Tunik, Sergey P., Chou, Pi-Tai, Pakkanen, Tapani A.

“…Reactions of the homoleptic (AuC2R)n precursors with stoichiometric amount of diphosphine ligand PPh2C6H4PPh2 (P^P) and Cu+ ions lead to an assembly of a new…”
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ALD Growth Characteristics of ZnS Films Deposited from Organozinc and Hydrogen Sulfide Precursors by Tanskanen, Jukka T, Bakke, Jonathan R, Bent, Stacey F, Pakkanen, Tapani A

“…Growth characteristics of zinc sulfide thin films deposited from dialkylzinc and H2S reactants by the atomic layer deposition technique have been investigated…”
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Icephobic performance of one-step silicone-oil-infused slippery coatings: Effects of surface energy, oil and nanoparticle contents by Cui, Wenjuan, Pakkanen, Tapani A.

“…[Display omitted] State-of-the-art superhydrophobic surfaces (SHSs) usually do not function in high humidity and frosty climate conditions. Lubricant-infused…”
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Formation of Nanotubular Methylaluminoxanes and the Nature of the Active Species in Single-Site α-Olefin Polymerization Catalysis by Linnolahti, Mikko, Severn, John R, Pakkanen, Tapani A

“…Tubular Al's: Quantum chemical calculations show the facile formation of nanotubular methylaluminoxanes from reactions between water and trimethylaluminum. The…”
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Sources and chemical composition of atmospheric fine and coarse particles in the Helsinki area by Pakkanen, Tuomo A, Loukkola, Kati, Korhonen, Christina H, Aurela, Minna, Mäkelä, Timo, Hillamo, Risto E, Aarnio, Päivi, Koskentalo, Tarja, Kousa, Anu, Maenhaut, Willy

“…During April 1996–June 1997 size-segregated atmospheric aerosol particles were collected at an urban and a rural site in the Helsinki area by utilising virtual…”
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Stepwise 1D Growth of Luminescent Au(I)−Ag(I) Phosphine−Alkynyl Clusters: Synthesis, Photophysical, and Theoretical Studies by Koshevoy, Igor O, Lin, Chia-Li, Karttunen, Antti J, Jänis, Janne, Haukka, Matti, Tunik, Sergey P, Chou, Pi-Tai, Pakkanen, Tapani A

“…Reactions between the diphosphino-gold cationic complexes [Au2(PPh2-C2-(C6H4) n -C2-PPh2)2]2+ (n = 0, 1, 2, 3) and polymeric acetylides (AuC2Ph) n and (AgC2Ph)…”
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Dispersion of particles and trace gases nearby a city highway: Mobile laboratory measurements in Finland by Pirjola, L., Paasonen, P., Pfeiffer, D., Hussein, T., Hämeri, K., Koskentalo, T., Virtanen, A., Rönkkö, T., Keskinen, J., Pakkanen, T.A., Hillamo, R.E.

“…Traffic particles, total number concentration and size distribution in the range 3 nm–10 μm, as well as concentrations of carbon monoxide and nitrogen oxides…”
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Synthesis, Characterization, Photophysical, and Theoretical Studies of Supramolecular Gold(I)−Silver(I) Alkynyl-Phosphine Complexes by Koshevoy, Igor O, Karttunen, Antti J, Tunik, Sergey P, Haukka, Matti, Selivanov, Stanislav I, Melnikov, Alexei S, Serdobintsev, Pavel Yu, Pakkanen, Tapani A

“…The reactions of diphosphino-alkynyl gold complexes (PhC2Au)PPh2(C6H4) n PPh2(AuC2Ph) (n = 1, 2, 3) with Ag+ lead to the formation of supramolecular…”
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Methane oxidation on alumina supported palladium catalysts: Effect of Pd precursor and solvent by Kinnunen, N.M., Suvanto, M., Moreno, M.A., Savimäki, A., Kallinen, K., Kinnunen, T.-J.J., Pakkanen, T.A.

“…Palladium precursors and solvents were studied for their effects on the activities of alumina-based palladium catalysts in methane combustion and the…”
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