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Chemistry for Sustainable Development

2002

Number: 5

29411.
Monitoring of Acid Deposition in the Baikal Region

TAMARA V. KHODZHER, MIKHAIL Yu. SEMENOV, VLADIMIR A. OBOLKIN, VALENTINA M. DOMYSHEVA, LYUDMILA P. GOLOBOKOVA, NATALIA A. KOBELEVA, OL'GA G. NETSVETAEVA, VLADIMIR L. POTEMKIN and MARIA V. SERGEEVA
Limnological Institute, Siberian Branch of the Russian Academy of Sciences,
Ul. Ulan-Batorskaya 3, Irkutsk 664033 (Russia), E-mail: khodzher@lin.irk.ru
Pages: 569-575

Abstract >>
Data of 3-year-long observations of the chemical composition of precipitation, aerosol, soils and surface waters at three monitoring stations in the Baikal region are presented. The choice of observation objects is substantiated. Problems of natural objects" resistance to acidification are considered. The resistance of terrestrial ecosystems to acidification has been estimated quantitatively, and that of surface waters has been done so qualitatively. It has been demonstrated that symptoms of acidification are manifested most strongly in regions lee with respect to regional industrial centres at a distance of several tens and hundreds kilometres from them. The permissible acidity load for the soils of the territory under consideration varies from 1.25 to 1.4 keq/ (ha yr), while the maximal modern acidity load attains only 0.4 keq/ (ha yr).



Number: 6

29412.
Lithium Ion Batteries: Materials, Products, Market

ILIA-MAY A. KEDRINSKY1 and GENNADIY L. PASHKOV2
1Siberian State Technological University, Ul. Markovskogo 57, Krasnoyarsk 660060 (Russia)
E-mail: kedr-vip@inbox.ru
2Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences,
Ul. K. Marxa 42, Krasnoyarsk 660049 (Russia)
Pages: 707-720

Abstract >>
The basic principles of operation of Li-ion batteries (Li-ion) are considered; equations for the electrode potential and charge/discharge kinetics are presented. The most widespread materials for the negative and positive electrodes are described, as well as the composition of electrolytes, their properties and behaviour in Li-ion. The world market and outlooks of the Russian market are analyzed.



Number: 6

29413.
About Correlation between Gibbs' Energy and Mean Orbital Electronegativity for the Interactions between Metal Oxides

EUGENE G. AVVAKUMOV
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy
of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia), E-mail: avvakumov@solid.nsk.su
Pages: 675-678

Abstract >>
By analogy with thermodynamic notions, implying that the possibility for a reaction to proceed is determined by Gibbs' energy, which is equal to the difference of the energies for the final and initial products, it is proposed to calculate the difference of the sums of mean orbital electro-negativities for the final an initial products. A linear correlation has been established between Gibbs' energies of reactions and the mentioned differences, on the basis of vast experimental material for various reaction types. This correlation can be used to estimate the possibility of a reaction between the compounds for which thermodynamic data are unknown, in particular for complicated multi-component compounds.



Number: 6

29414.
Non-Equilibrium Solid Solutions in Metal Systems Obtained by Mechanochemical Synthesis

TATIANA F. GRIGORIEVA, ANTONINA P. BARINOVA, EUGENE YU. IVANOV, VLADIMIR V. BOLDYREV and NIKOLAY Z. LYAKHOV
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy
of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia), E-mail: grig@solid.nsk.su
Pages: 687-692

Abstract >>
Physicochemical properties of non-equilibrium solid solutions in metal systems obtained mechanochemically are investigated by means of high-resolution microscopy, X-ray diffraction and differential scanning calorimetry (DSC). It is demonstrated that nano-crystalline non-equilibrium solid solutions possess the excess free energy due to the presence of non-equilibrium non-stoichiometric defects and high density of inter block boundaries. The whole set of these defects creates synergetic effect in chemical activity.



Number: 6

29415.
Solid-Phase Synthesis of Indium and Tin Oxide Materials

YURI P. EGOROV, TATIANA D. MALINOVSKAYA, EUGENE P. NAIDEN, VICTOR I. SACHKOV and ELENA I. SACHKOVA
Kuznetsov Siberian Physicotechnical Institute, Ploshchad' Novosobornaya 1,
Tomsk 634050 (Russia), E-mail: malin@elefot.tsu.ru
Pages: 679-686

Abstract >>
Comparative investigations of phase formation processes and electronic properties of indium and tin oxide materials obtained under different conditions of solid-phase synthesis are presented. Substantial influence of synthesis conditions and temperature of hydrolysis product annealing on phase composition and size of crystallites of the synthesized indium and tin oxide materials is demonstrated. It is stated that the best optimal method to obtain materials with high concentration of free charge carriers is hydrolytic procedure with the use of hydrochloric acid solutions.



Number: 6

29416.
Synthesis and Thermal Decomposition of Double Lithium-Aluminium Hydroxide Containing Copper Complex with Nitryltriacetic Acid

VITALIY P. ISUPOV1, RAISA P. MITROFANOVA1, LYUDMILA E. CHUPAKHINA1 and ALEXEY P. CHUPAKHIN2
1Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy
of Sciences, Ul. Kutateladze 18, Novosibirsk 630128 (Russia), E-mail: isupov @solid.nsk.su
2Novosibirsk State University, Ul. Pirogova 2, Novosibirsk 630090 (Russia)
Pages: 693-698

Abstract >>
Double lithium-aluminium hydroxide [LiAl2(OH)6][Cunta] . 3H2O. containing copper complex with the anion of nitryltriacetic acid (nta) is synthesized by means of anion exchange for the first time. It is shown with the help of X-ray phase analysis that the size of layer packet of the synthesized compound is 11.8 Å. It is established by means of mass spectrometry that the process of water evolution due to dehydroxylation of [LiAl2(OH)6]+ layers starts simultaneously with the destruction of complex anion [Cunta]



Number: 6

29417.
Solid-Phase Synthesis of LuBa2Cu3O6 + x Compound

MARGARITA YU. KAMENEVA, LYUDMILA P. KOZEEVA, NATALIA A. MURZINA, VICTOR S. DANILOVICH and LADIMIR E. FEDOROV
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Lavrentyeva 3, Novosibirsk 630090 (Russia), E-mail: kamen@casper.che.nsk.su
Pages: 699-706

Abstract >>
Investigation of phase formation in the system Lu



Number: 6

29418.
Investigation of Thermal Stability of LiCoO2 and Li1

DINA G. KELLERMAN, VERA V. KARELINA, VADIM S. GORSHKOV and YAKOV N. BLINOVSKOV
Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences,
Ul. Pervomayskaya 91, Ekaterinburg 620219 (Russia), E-mail: kellerman@ihim.uran.ru
Pages: 721-726

Abstract >>
Processes that occur during the heating of the stoichiometric and defect lithium cobaltite are investigated. This compound is usually considered as one of the most promising cathode materials for secondary lithium batteries. Analysis of thermal stability of chemically deintercalated Li1



Number: 6

29419.
Thermochemistry of the Decomposition Reactions of Solid Solutions Nd1 + xBa2

NATA I. MATSKEVICH1, Eugene A. TROFIMRNKO2 and YURI D.TRETYAKOV2
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Lavrentyeva 3, Novosibirsk 630090 (Russia), E-mail: nata@casper.che.nsk.su
2Lomonosov Moscow State University, Vorobyevy gory, Moscow 119899 (Russia)
Pages: 727-732

Abstract >>
The dependence of the enthalpy of formation of Nd1 + xBa2



Number: 6

29420.
Thermodynamic Investigation of Precursors for MOCVD Processes: tris-Dipivaloylmethanate of Iron

VICTOR N. NAUMOV, ARKADIY V. SERYAKOV, GALINA I. FROLOVA, VERONIKA V. NOGTEVA, PAVEL A. STABNIKOV, IGOR K. IGUMENOV and MIKHAIL A. BESPYATOV
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Lavrentyeva 3, Novosibirsk 630090 (Russia), E-mail: naumov@casper.che.nsk.su
Pages: 733-738

Abstract >>
The heat capacity for tris-dipivaloylmethanate of iron Fe(C11O2H19)3 within the temperature range 57




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