Výsledky vyhledávání - "Alexandru Botar"

ENVIRONMENTALLY FRIENDLY TECHNIQUES FOR CHEMICAL PULP BLEACHING

Autor: Dan Gavrilescu, Adrian Catalin Puitel, Grigore Craciun, Gheorghe Dutuc, Alexandru Botar

Publikováno v: Environmental Engineering and Management Journal. 9:73-80

In the last decades there has been a rapid evolution of techniques for production of bleached pulp. Much of these processes have been environmentally driven. New techniques have been developed in order to replace chlorine-based reagents in producing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef9fec513e1947c0d3199f180e849a00
https://doi.org/10.30638/eemj.2010.011

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Characterization of ligno-cellulosic materials bleached with oxo-diperoxo-molybdates

Autor: Artur Cavaco-Paulo, Alexandru Botar, Florentina-Daniela Munteanu, Adina-Maria Bodescu, Cecilia Sîrghie

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

A newly effective system was used to bleach ligno-cellulosic textile materials. This system is based on two different newly synthesized natrium oxo-diperoxo molybdates, Na2[MoO (O2)2(C2O4)] and Na2[MoO (O2)2(C6H6O7)]. These two compounds were charact

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K11[HSn3II(PW9VIO34)2] � 27 H2O - Synthese und Struktur

Autor: Hartmut Bögge, Achim Müller, Pedro Gili, Bogdan Botar, Marc Schmidtmann, Jochen Meyer, Alexandru Botar

Publikováno v: Zeitschrift f�r anorganische und allgemeine Chemie. 622:1435-1440

K11[HSn(PWO34)2] · 27 H2O 1 last sich in einer „Eintopfreaktion” aus kauflich erhaltlichen Edukten (SnCl2, Na2HPO4 · 7 H2O, Na2WO4 · 2 H2O) in guten Ausbeuten darstellen. 1 wurde durch Elementaranalysen, IR/Raman-, UV/Vis-Spektroskopie sowie e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98a488e8ad74e7dd0aef77849d1962ec
https://doi.org/10.1002/zaac.19966220902

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Trinuclear fragments as nucleation centres: New polyoxoalkoxyvanadates by (induced) self-assembly

Autor: Hartmut Bögge, Achim Müller, Alexandru Botar, Anja Stammler, Jochen Meyer

The presence of pentaerythritol (C(CH2OH)(4)) in an aqueous vanadate solution leads-depending on the pH value and other specific reaction conditions-to the formation of (CN3H6)(4)Na-2 [(H4V6P4O30)-P-IV{(CH2)(3)-CCH2OH2]. 14H(2)O (1), Na-6[(H4V6P4O30)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b53da09f9a6d0408436ce1d2e0c2a8af
https://pub.uni-bielefeld.de/record/1625059

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Cis-/Trans-Isomerie bei Bis-(trisalkoxy)-hexavanadaten - Cis-Na2[V-6(IV)O-7(OH)(6)((OCH2)(3)CCH2OH)(2)) · 8H2O, cis-(CN3H6)3[V-5(IV)O-V(13)((OCH2)(3)CCH2OH)(2)] · 4,5H(2)O und trans-(CN3H6)(2)[V-6(V)O-13((OCH2)(3)CCH2OH)(2)] · H2O

Autor: Alexandru Botar, Anja Stammler, Jochen Meyer, Achim Müller, Hartmut Bögge

Die beschriebenen Trisalkoxy-polyoxovanadate mit verzerrter Lindqvist-Struktur, in der sechs der zwolf μ2-verbruckenden Sauerstoffatome formal durch die Sauerstoffatome von zwei koordinierten Pentaerythritolliganden ((HOCH2)3CCH2OH) ersetzt wurden,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2150e1cfe1520bf04428aa0f6e63e00f
https://pub.uni-bielefeld.de/record/1639842

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Kristallstrukturen und Schwingungsspektren des Heteropolysulfats [N(CH3)4]6S2V2W16O62 und des Vanadatowolframats Na[N(CH3)4]2VW5O19 · H2O / Crystal Structures and Vibrational Spectra of the Heteropolysulfate [N(CH3)4]6S2V2W16O62 and the Vanadatotungstate Na[N(CH3)4]2VW5O19 · H2O

Autor: Alexandru Botar, Joachim Fuchs

Publikováno v: Zeitschrift für Naturforschung B. 37:806-814

X-ray analysis of [N(CH3)4]6S2V2W16O62 furnishes evidence for the existence of a discrete heteropolysulfate ion. The compound crystallizes monoclinic, space group P21/C with lattice parameters a = 13.361(5) Å, b = 25.378(1) Å, c = 28.847(5) and β

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https://doi.org/10.1515/znb-1982-0702

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LAB-ON-A-CHIP AND FOOD SAFETY: BIOSENSORS AND BIOCOMPOSITES TO IDENTIFY FOODBORNE PATHOGENS AND CHEMICALS

Autor: Sorin Apostu, Alexandru Botar, Carmen Socaciu

Publikováno v: Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture. 63

We live in a new era of nano- and microtechnologies, applied in fundamental science and more and more in life sciences and industrial technologies. The review aims to reveal the progress in using miniaturized devices (biosensors, nanocomposites) for

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https://doi.org/10.15835/buasvmcn-agr:1449

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Generation of cluster capsules (Ih) from decomposition products of a smaller cluster (Keggin-Td) while surviving ones get encapsulated: Species with core-shell topology formed by a fundamental symmetry-driven reaction

Autor: Alexandru Botar, Hartmut Bögge, Adrian Patrut, Achim Müller, Samar K. Das, Marc Schmidtmann

Publikováno v: Scopus-Elsevier

A novel and fundamental reaction system of matter following a type of ‘supramolecular Darwinism’ leads to the formation of giant spherical nano-sized cluster capsules as kinetically controlled destination having the highest possible symmetry (Ih)

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http://www.scopus.com/inward/record.url?eid=2-s2.0-0035820339&partnerID=MN8TOARS

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