Search Results - "Paneva, D"

Activated carbons from used motor oil as catalyst support for sustainable environmental protection by Tsoncheva, T., Mileva, A., Marinov, S.P., Paneva, D., Velinov, N., Spassova, I., Kosateva, A., Kovacheva, D., Petrov, N.

“…Activated carbons obtained from used motor oil mixtures with furfural or coal tar pitch were prepared and tested as a host matrix of zinc and/or iron oxide…”
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Study on the Composition of Biogenic Iron-Containing Materials Obtained Under Cultivation of the Leptothrix sp. on Different Media by Shopska, M., Paneva, D., Kadinov, G., Cherkezova-Zheleva, Z., Mitov, I., Iliev, M.

“…The biogenic iron oxide/hydroxide materials possess useful combination of physicochemical properties and are considered for application in various areas. Their…”
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NO reduction by CO over gold catalysts supported on Fe-loaded ceria by Ilieva, L., Pantaleo, G., Velinov, N., Tabakova, T., Petrova, P., Ivanov, I., Avdeev, G., Paneva, D., Venezia, A.M.

“…[Display omitted] •Comparison of catalytic behavior in NO reduction by CO over gold on Fe-doped ceria.•Supports preparation by mechanical mixing (MM) or…”
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Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior by Cherkezova-Zheleva, Z., Paneva, D., Petkova, V., Krstić, J., Stefanov, G.

“…In this paper, the physico chemical properties of Fe–based amorphous alloys containing critical raw materials (CRM) were investigated in order to reuse them…”
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CO-free hydrogen production over Au/CeO2–Fe2O3 catalysts: Part 2. Impact of the support composition on the performance in the water-gas shift reaction by Tabakova, T., Manzoli, M., Paneva, D., Boccuzzi, F., Idakiev, V., Mitov, I.

“…[Display omitted] ▶ The support composition affects strongly the WGS activity of Au/mixed Ce–Fe oxides. ▶ The WGS activity order was:…”
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Activated carbons from waste biomass and low rank coals as catalyst supports for hydrogen production by methanol decomposition by Tsyntsarski, B., Stoycheva, I., Tsoncheva, T., Genova, I., Dimitrov, M., Petrova, B., Paneva, D., Cherkezova-Zheleva, Z., Budinova, T., Kolev, H., Gomis-Berenguer, A., Ania, C.O., Mitov, I., Petrov, N.

“…Activated carbons with different textural and chemical surface characteristics were synthesized from waste biomass and low rank coals, and furthermore used as…”
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Nanosized iron and iron–cobalt spinel oxides as catalysts for methanol decomposition by Manova, E., Tsoncheva, T., Estournès, Cl, Paneva, D., Tenchev, K., Mitov, I., Petrov, L.

“…Nanosized iron and mixed iron–cobalt oxides supported on activated carbon materials and their bulk analogues prepared by thermal synthesis are studied by…”
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Nano-gold catalysts on Fe-modified ceria for pure hydrogen production via WGS and PROX: Effect of preparation method and Fe-doping on the structural and catalytic properties by Ilieva, L., Tabakova, T., Pantaleo, G., Ivanov, I., Zanella, R., Paneva, D., Velinov, N., Sobczak, J.W., Lisowski, W., Avdeev, G., Venezia, A.M.

“…•Gold on Fe-doped ceria prepared by mechanical mixing (MM) or by impregnation (IM).•Significantly higher WGS activity of gold catalysts on MM compared to IM…”
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Mechanochemical synthesis and characterization of nanodimensional iron–cobalt spinel oxides by Manova, E., Paneva, D., Kunev, B., Estournès, Cl, Rivière, E., Tenchev, K., Léaustic, A., Mitov, I.

“…Iron–cobalt spinel oxide nanoparticles, Co x Fe 3− x O 4 ( x = 1, 2), of sizes below 10 nm have been prepared by combining chemical precipitation with…”
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Mechanochemically synthesized nano-dimensional iron–cobalt spinel oxides as catalysts for methanol decomposition by Manova, E., Tsoncheva, T., Paneva, D., Mitov, I., Tenchev, K., Petrov, L.

“…Iron–cobalt spinel oxide nanoparticles with different Fe/Co ratios have been prepared by the combination of chemical precipitation with simultaneous ultrasonic…”
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LaMO3 (M=Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation by Petrović, S., Terlecki-Baričević, A., Karanović, Lj, Kirilov-Stefanov, P., Zdujić, M., Dondur, V., Paneva, D., Mitov, I., Rakić, V.

“…Two new series of perovskite-type oxides LaMO3 (M=Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing…”
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Comparative study of biogenic and abiotic iron-containing materials by Cherkezova-Zheleva, Z., Shopska, M., Paneva, D., Kovacheva, D., Kadinov, G., Mitov, I.

“…Series of iron-based biogenic materials prepared by cultivation of Leptothrix group of bacteria in different feeding media ( Sphaerotilus-Leptothrix group of…”
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Influence of gas media on the thermal decomposition of second valence iron sulphates by Petkova, V., Pelovski, Y., Paneva, D., Mitov, I.

“…FeSO 4 ·H 2 O and FeSO 4 represent the second valence of iron sulphates. Number of studies has been done to understand formation of intermediate sulphates like…”
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Investigation of biogenic iron-containing nanoscale composite materials by Cherkezova-Zheleva, Z., Paneva, D., Shopska, M., Ilieva, R., Iliev, M., Kovacheva, D., Kadinov, G.

“…Biogenic composites are interesting as green and sustainable precursors for preparation of advanced materials of various applications. Biomaterials from…”
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Study of the changes in the magnetic properties of stainless steels under mechanical treatment by Iankov, R., Rusanov, V., Paneva, D., Mitov, I., Trautwein, A. X.

“…Six types of stainless steels (SS) were studied for changes in its structure and magnetic properties under mechanical treatment. Depending on intensity and…”
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Composition and catalytic behavior in CO oxidation of biogenic iron-containing materials by Shopska, M., Paneva, D., Kadinov, G., Todorova, S., Fabián, M., Yordanova, I., Cherkezova-Zheleva, Z., Mitov, I.

“…The composition of biomasses obtained by the cultivation of Leptothrix genus bacteria in Adler, Fedorov, and Lieske nutrition media has been studied by…”
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Perspectives On: Criteria for Complex Evaluation of the Morphology and Alignment of Electrospun Polymer Nanofibers by Spasova, M., Mincheva, R., Paneva, D., Manolova, N., Rashkov, I.

“…Electrospinning is a promising method for producing polymer materials composed of micro- and nanosized fibers. This method allows the preparation of random and…”
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Preparation of Polyelectrolyte-Containing Nanofibers by Electrospinning in the Presence of a Non-Ionogenic Water-Soluble Polymer by Mincheva, R., Manolova, N., Paneva, D., Rashkov, I.

“…The first successful preparation of nanofibers of a polyampholyte (N-carboxyethylchitosan) by electrospinning was achieved by adding a non-ionogenic…”
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Synthesis, characterization and catalytic properties of nanodimensional nickel ferrite/silica composites by Manova, E., Tsoncheva, T., Paneva, D., Rehspringer, J.L., Tenchev, K., Mitov, I., Petrov, L.

“…Nanosized NiFe 2O 4/silica composites are synthesized using the sol–gel method. The investigated compounds are active in the reaction of catalytic methanol…”
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Study of iron(III) polymer complexes using Moessbauer spectroscopy by Turmanova, S., Paneva, D., Mitov, I.

“…Metal complexes were prepared on the basis of polymer ligands with carboxylic and nitrogen-containing functionalities by complexation with iron ions in aqueous…”
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