Search Results - "HEINMAA, I"

Optimization and degradation studies of cellulose transesterification to palmitate esters in superbase ionic liquid by Savale, N., Tarasova, E., Krasnou, I., Kudrjašova, M., Rjabovs, V., Reile, I., Heinmaa, I., Krumme, A.

“…Cellulose palmitates (CPs) were synthesized with varying degrees of substitution (DS) via a catalyst-free, homogeneous transesterification of cellulose in a…”
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Highly selective Prins reaction over acid-modified halloysite nanotubes for synthesis of isopulegol-derived 2H-chromene compounds by Sidorenko, A.Yu, Kravtsova, A.V., Aho, A., Heinmaa, I., Wärnå, J., Pazniak, H., Volcho, K.P., Salakhutdinov, N.F., Murzin, D.Yu, Agabekov, V.E.

“…[Display omitted] •Modified halloysite nanotubes as a stereoselective catalyst for synthesis octahydro-2H-chromen-4-ol.•Unprecedented selectivity to target 4R…”
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Turning food waste to antibacterial and biocompatible fungal chitin/chitosan monofilaments by Svensson, Sofie E., Oliveira, Ana Osório, Adolfsson, Karin H., Heinmaa, Ivo, Root, Andrew, Kondori, Nahid, Ferreira, Jorge A., Hakkarainen, Minna, Zamani, Akram

“…Here, cell wall of a zygomycete fungus, Rhizopus delemar, grown on bread waste was wet spun into monofilaments. Using the whole cell wall material omits the…”
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Magnetic properties and 57Fe NMR studies of U-type hexaferrites by Chandra Dimri, M., Khanduri, H., Kooskora, H., Heinmaa, I., Joon, E., Stern, R.

“…U-type hexaferrites with compositions Ba4Me2Fe36O60 (Me=Cu, Fe, Co, Mn and Mg) have been synthesized and characterized by magnetization measurements and zero…”
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Magnetic-field-induced condensation of triplons in han purple pigment BaCuSi2O6 by JAIME, M, CORREA, V. F, SASAGO, Y, UCHINOKURA, K, HARRISON, N, BATISTA, C. D, KAWASHIMA, N, KAZUMA, Y, JORGE, G. A, STERN, R, HEINMAA, I, ZVYAGIN, S. A

“…Besides being an ancient pigment, BaCuSi2O6 is a quasi-2D magnetic insulator with a gapped spin dimer ground state. The application of strong magnetic fields…”
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Search for ferromagnetism in manganese-stabilized zirconia by Dimri, M. Chandra, Kooskora, H., Pahapill, J., Joon, E., Heinmaa, I., Subbi, J., Stern, R.

“…Magnetic properties of Mn‐stabilized cubic zirconia (ZrO2) powder samples were investigated to verify the recent theoretical predictions of ferromagnetism in…”
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Interaction of point defects with impurities in the Si-SiO2 system and its influence on the properties of the interface by KROPMAN, D, MELLIKOV, E, REBOHLE, L, ZVYAGIN, S, CIZMAR, E, OZEROV, M, WOSNITZA, J, ÖPIK, A, LOTT, K, KÄRNER, T, HEINMAA, I, LAAS, T, MEDVID, A, SKORUPA, W, PRUCNAL, S

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6Li NMR Studies of Cation Disorder and Transition Metal Ordering in Li[Ni1/3Mn1/3Co1/3]O2 Using Ultrafast Magic Angle Spinning by Cahill, L. S, Yin, S.-C, Samoson, A, Heinmaa, I, Nazar, L. F, Goward, G. R

“…Studies of Li[Ni1/3Mn1/3Co1/3]O2 prepared under six different conditions are compared using high-resolution solid-state 6Li NMR. Differing degrees of cation…”
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Impurity interaction with point defects in the Si–SiO2 structures and its influence on the interface properties by Kropman, D., Mellikov, E., Kärner, T., Ugaste, Ü., Laas, T., Heinmaa, I., Medvid, A.

“…The type and density of the point defects that are generated in the Si surface layer during thermal oxidation depend on the oxidation condition: temperature,…”
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NMR study of antiferromagnetic black sodalite Na8(AlSiO4)6 by Heinmaa, I., Vija, S., Lippmaa, E.

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Catalytic condensation of α-pinene with formaldehyde by Sidorenko, A.Yu, Kurban, Yu.M., Il'ina, I.V., Li-Zhulanov, N.S., Patrusheva, O.S., Goltsova, V.V., Bei, M.P., Aho, A., Wärnå, J., Heinmaa, I., Kouznetsova, T.F., Volcho, K.P., Salakhutdinov, N.F., Murzin, D.Yu, Agabekov, V.E.

“…[Display omitted] •Condensation of (–)-α-pinene with formaldehyde into 8-acetoxy-6-hydroxymethyllimonene.•Selectivity of 24 % with traditional Lewis and…”
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Study of Lithium Dynamics in Monoclinic Li3Fe2(PO4)3 using 6Li VT and 2D Exchange MAS NMR Spectroscopy by Davis, L. J. M, Heinmaa, I, Goward, G. R

“…Details of Li-mobility in Li3Fe2(PO4)3 are elucidated using solid-state 6Li NMR. Three crystallographically unique Li sites were resolved under magic angle…”
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Ferromagnetism in rare earth doped cerium oxide bulk samples by Dimri, M. Chandra, Khanduri, H., Kooskora, H., Subbi, J., Heinmaa, I., Mere, A., Krustok, J., Stern, R.

“…Magnetic properties of rare earth (RE) doped ceria (RE = Nd, Sm, Gd, Tb, Er and Dy) samples have been investigated and reported in this paper. Room temperature…”
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Interaction between point defects in the Si–SiO2 system during the process of its formation by Kropman, D, Kärner, T, Samoson, A, Heinmaa, I, Ugaste, Ü, Mellikov, E

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Solvent-free synthesis of tetrahydropyran alcohols over acid-modified clays by Sidorenko, A.Yu, Kurban, Yu.M., Aho, A., Ihnatovich, Zh.V., Kuznetsova, T.F., Heinmaa, I., Murzin, D.Yu, Agabekov, V.E.

“…[Display omitted] •Halloysite, montmorillonite and illite as effective catalysts for the production of tetrahydropyranols.•Synthesis without solvent at a…”
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Catalytic isomerization of α-pinene oxide in the presence of acid-modified clays by Sidorenko, A.Yu, Kravtsova, A.V., Aho, A., Heinmaa, I., Kuznetsova, T.F., Murzin, D.Yu, Agabekov, V.E.

“…[Display omitted] •Acid-modified clays as a catalyst for α-pinene oxide isomerization.•Campholenic and iso-campholenic aldehydes as the main reaction…”
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Solid state NMR spin-lattice relaxation investigation of oxygen dynamics in scandium doped ceria from 60 to 1073 K by Subbi, Juhan, Heinmaa, Ivo, Põder, Reio, Kooskora, Helgi

“…Scandium spin dynamics in scandium doped ceria has been addressed first time through spin-lattice relaxation temperature dependence. Scandium spin-lattice…”
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Preparation of octahydro-2H-chromen-4-ol with analgesic activity from isopulegol and thiophene-2-carbaldehyde in the presence of acid-modified clays by Sidorenko, A.Yu, Kravtsova, A.V., Wärnå, J., Aho, A., Heinmaa, I., Il’ina, I.V., Ardashov, O.V., Volcho, K.P., Salakhutdinov, N.F., Murzin, D.Yu, Agabekov, V.E.

“…[Display omitted] •Acid-modified illite clay as a catalyst for synthesis of octahydro-2H-chromenol.•Increase of stereoselectivity to 4R diastereomer with…”
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Study of Lithium Dynamics in Monoclinic Li 3 Fe 2 (PO 4 ) 3 using 6 Li VT and 2D Exchange MAS NMR Spectroscopy by Davis, L. J. M., Heinmaa, I., Goward, G. R.

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Jahn-Teller orbital glass state in the expanded fcc Cs sub(3)C sub(60) fulleride by Potocnik, A, Ganin, A Y, Takabayashi, Y, McDonald, M T, Heinmaa, I, Jeglic, P, Stern, R, Rosseinsky, MJ, Prassides, K, Arcon, D

“…The most expanded fcc-structured alkali fulleride, Cs sub(3)C sub(60), is a Mott insulator at ambient pressure because of the weak overlap between the frontier…”
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