Chemia 1 the Lumea Noua culture (5thmillennium B.C.) and discovered at Alba Iulia-Lumea Noua...

Click here to load reader

  • date post

    22-Jan-2021
  • Category

    Documents

  • view

    1
  • download

    0

Embed Size (px)

Transcript of Chemia 1 the Lumea Noua culture (5thmillennium B.C.) and discovered at Alba Iulia-Lumea Noua...

  • 1/2008

    CHEMIA

  • ANUL LIII 2008

    S T U D I A

    UNIVERSITATIS BABE -BOLYAI

    CHEMIA

    1 Desktop Editing Office: 51ST B.P. Hasdeu Street, Cluj-Napoca, Romania, Phone + 40 264-405352

    CUPRINS – CONTENT – SOMMAIRE – INHALT

    In memoriam prof. dr. Liviu Oniciu.......................................................... 3

    S. VARVARA, B. FABBRI, S. GUALTIERI, P. RICCIARDI, M. GLIGOR, Archaeometric Characterisation of the Neolithic Pottery Discovered at Alba Iulia-Lumea Noua Archaeological Site (Romania) ..................... 5

    D.GLIGOR, L. MURESAN, I. C. POPESCU, C. CRISTEA, G. CORMOS, Synthesis and Electrochemical Behaviour of Bis-(10-Ethylphenothi- azinyl)-Phenylmethane........................................................................ 15

    A. NICOARA, Mott-Schottky Analysis of Electrodeposited ZnS Thin Films ................................................................................................... 23

    N. BONCIOCAT, About the Possibility of Using the Electrochemical Impedance Spectroscopy as a Method of Classifying the Drugs ......... 31

    C. ROBA, L. D. BOBOS, A. OLTEAN, I.-O. MARIAN, B.-R.-H. MISCA, D. MANCIULA, Photoconductive Properties of CdS Electrodeposited Thin Films ........................................................................................... 43

    D. MANCIULA, I.-O. MARIAN, B.-R.-H. MI�CA, Nano- and Microparticle Distribution on Solid and Flexible Substrates – Part I .......................... 49

  • D. GLIGOR, E. CSOREGI, I. C. POPESCU, Amperometric Biosensor for Ethanol Based on a Phenothiazine Derivative Modified Carbon Paste Electrode................................................................................... 55

    A.-M. TODEA, L. M. MURE�AN, I. C. POPESCU, Caractérisation operationnelle d’un biocapteur amperometrique pour la detection de l’anion nitrate....................................................................................... 63

    L. MURE�AN, K. J. ZOR, M. NISTOR, E. CSÖREGI, I. C. POPESCU, Amperometric Biosensors for Glucose and Ethanol Determination in Wine Using Flow Injection Analysis ..................................................... 71

    E. M. RUS, D. M. CONSTANTIN, G. AR!LUNG!, Pasted Nickel Electrodes for Alkaline Batteries.......................................................... 81

    A. KELLENBERGER, N. VASZILCSIN, N. DU EANU, M.L. DAN, W. BRANDL, Structure, Morphology and Electrochemical Properties of High Surface Area Copper Electrodes Obtained by Thermal Spraying Techniques........................................................................... 89

    S.-A. DORNEANU, B. FERENCZ-LÁSZLÓ, P. ILEA, Electrodeposition of Some Heavy Metals on Reticulated Vitreous Carbon Electrode ...... 97

    G. L. TURDEAN, C. F!RCA�, A. F. PALCU, M. S. TURDEAN, Electro- chemistry of Iron (III) Protoporphyrin (IX) Solution at Graphite Electrode...105

    L. VARVARI, I. C. POPESCU, S. A. DORNEANU, New [4.4.4.4]Cyclophane as Ionophore for Ion-Selective Electrodes ......................................... 113

    L. ANICAI, A. COJOCARU, A. FLOREA, T. VISAN, Electrochemical Investigation of Silver / Silver Ion Couple Reversibility in Choline Chloride - Urea Based Ionic Liquid .................................................... 119

    M. JITARU, M. TOMA, Electroreduction of Carbon Dioxide to Formate on Bronze Electrode.......................................................................... 135

    M. TOMOAIA-COTISEL, O. HOROVITZ, O. BOROSTEAN, L.-D. BOBOS, G. TOMOAIA, A. MOCANU, T.YUPSANIS, Kinetic and Thermodynamic Characterization of Protein Adsorption at Fluid Interfaces ................. 143

  • STUDIA UNIVERSITATIS BABE�-BOLYAI, CHEMIA, LIII, 1, 2008

    IN MEMORIAM

    Profesor Doctor Docent LIVIU ONICIU

    Profesor Liviu Oniciu was born on 11th of February 1927 in Cluj. He got an excellent high school education in both, literary and scientific directions, at the Pedagogical Seminar of the Cluj University (1946). He graduated the Faculty of Science of “Victor Babe ” University in Cluj (1950), becoming an assistant at the Chair of Physical Chemistry of this faculty. He retired in 1997, at the age of 70, but he continued to work as a consulting Professor, until the last days of his life (27th of November 1999).

    In his remarkable teaching period, he was: lecturer (1961), associated professor (1965), full professor (1970), Dean of the Faculty of Chemistry (11 years), Head of the Department of Physical Chemistry (14 years), member of Faculty Council (32 years), member of the University Senate (24 years). In 1984, he received the Award of the Excellence in Teaching, from the Ministry of Education.

  • IN MEMORIAM: Profesor Doctor Docent LIVIU ONICIU

    4

    In his outstanding scientific period, he become: PhD (1961), ScD (1971), PhD advisor (since 1969), and he received the “Nicolae Teclu” prise from the Romanian Academy of Science (1980).

    Profesor Liviu Oniciu was: Director of the Cluj-section of the Institute of Chemical and Biochemical Energetics (10 years), Director of the Research Centre in Electrochemistry at the Babe -Bolyai University (9 years), member of the International Society of Electrochemistry (I S E), the American Society of Electrochemistry, the Council of European Academy of Surface Technology, and as a proof of his recognition at the international level. I mention that I S E has elected him to be the representative of Romanian group of electrochemistry in ISE.

    Professor Liviu Oniciu wrote 6 books (two of them abroad), 8 monographs (one of them translated abroad), 19 patents and more than 220 scientific papers.

    Prof. Liviu Oniciu was the founder of the prestigious School of Electrochemistry from Cluj, recognized in our country as being the most important school in “Electrochemical Conversion of Energy”.

    As research directions I mention: anodic oxidation of methanol on various electrocatalysts, the fuel cells: hydrazine/ hydrogen peroxide, hydrogen/oxygen, the alkaline batteries Ni-Fe; Ni-Cd, as well as Na-S battery and batteries with Li anode.

    One must also mention the results obtained in applied electrochemistry by the Cluj-Section of the Institute of Chemical and Biochemical Energetics (10 years), namely: organic electrosynthesis, electrodeposition of metals, and photoelectrochemical conversion of energy.

    Finally, we must underline that prof. Liviu Oniciu was a visionary scientist and due to this quality he was able to orient his coworkers towards scientific directions which will become important in millennium III, as for instance: fundamentals and applications of Electrochemical (and Electrochemical –Hydrodynamical) Impedance Spectroscopy in: Chemistry, Biochemistry, Pharmacy and Biology; Biosensors; modern electrochemical methods in studying the drugs and their therapeutic effects, just to indicate some of those which are already in development at Cluj.

    Prof. Liviu Oniciu died in 1999, but his name will live as much as the Electrochemical Science in our country.

    May he rest in peace.

    Prof. dr. ing. Nicolae Bonciocat Prof. dr. Ionel C!t!lin Popescu

  • STUDIA UNIVERSITATIS BABE�-BOLYAI, CHEMIA, LIII, 1, 2008

    In memoriam prof. dr. Liviu Oniciu

    ARCHAEOMETRIC CHARACTERISATION OF THE NEOLITHIC POTTERY DISCOVERED AT ALBA IULIA-LUMEA NOUA

    ARCHAEOLOGICAL SITE (ROMANIA)

    SIMONA VARVARAa,*, BRUNO FABBRIb, SABRINA GUALTIERIb, PAOLA RICCIARDIb, MIHAI GLIGORa

    ABSTRACT. A set of 21 Neolithic painted pottery fragments belonging to the Lumea Noua culture (5th millennium B.C.) and discovered at Alba Iulia- Lumea Noua (Romania) settlement were investigated in order to elucidate some aspects concerning the manufacturing technique used for the ancient pottery production. The chemical, microstructural and petrographic features of the ceramic bodies were determined by X-ray fluorescence, X-ray diffraction and optical microscopy. The preliminary obtained data were used to make inferences concerning the pottery’s technology in terms of type of raw clays and firing temperatures.

    Keywords: pottery, Neolithic, Romania, X-ray fluorescence, X-ray diffraction, optical microscopy

    INTRODUCTION Pottery analysis plays an important and multi-faceted role in the

    interpretation of an archaeological site, being the fundamental tool used by archaeologists for dating sites or for determining trading patterns, cultural exchanges between peoples and social structures.

    In the last decades, an impressive range of analytical techniques (i.e. X-ray fluorescence, neutron activation analysis, SEM-EDS, X-ray diffraction, etc.) have been exploited with considerable success to produce detailed “fingerprints” that can be used to ascertain the provenance and to reconstruct the technologies used in the manufacture of the ancient artefacts [1].

    Contrary to other European regions, in Romania only very few investigations on prehistoric pottery have been made using modern techniques [2-3]. Consequently, in spite of the large quantities of ancient ceramic material collected from archaeological excavations, there are still many unknown aspects about the origin and production techniques of the prehistoric pottery discovered on the actual Romanian territory.

    a “1 Decembrie 1918” University, Dept. of Topography, 11-13 Nicolae Iorga St., 510009 Alba Iulia,

    ROMANIA. *E-mail: [email protected] b CNR, Institute of Science and Technology for Ceramics,