<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Azarifar, Ali</style></author><author><style face="normal" font="default" size="100%">Yadav, P. A.</style></author><author><style face="normal" font="default" size="100%">Chawla, A. K.</style></author><author><style face="normal" font="default" size="100%">Jog, Jyoti Prakash</style></author><author><style face="normal" font="default" size="100%">Patil, S. I.</style></author><author><style face="normal" font="default" size="100%">Chandra, Ramesh</style></author><author><style face="normal" font="default" size="100%">Ogale, S. B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Controlling stoichiometry in low temperature synthesis of La0.7Sr0.3MnO3 nanoparticles</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Science Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Citric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Complex Oxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Dextran</style></keyword><keyword><style  face="normal" font="default" size="100%">Hexamine</style></keyword><keyword><style  face="normal" font="default" size="100%">hydrothermal</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">AMER SCIENTIFIC PUBLISHERS</style></publisher><pub-location><style face="normal" font="default" size="100%">26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA</style></pub-location><volume><style face="normal" font="default" size="100%">4</style></volume><pages><style face="normal" font="default" size="100%">424-430</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Nanoparticles of complex oxides (&amp;lt;20 nm) are desirable for several applications in view of the diverse range of physical properties of such oxides. However the simultaneous presence of multiple cation precursors makes the corresponding chemical synthesis non-trivial with possible intermediate evolution of secondary phases. Such phases could react at high temperatures to form the desired stoichiometry, but this process is diffusion limited and can lead to larger particles. In this work we examine the role of three different reaction and growth controlling additives, namely dextran, citric acid and hexamine, on the synthesis of the well known colossal magneto-resistive (CMR) manganite La0.7Sr0.3MnO3. We demonstrate that phase evolutions differ significantly in the three cases, and the physical properties of the products also differ dramatically. Only dextran is shown to yield the desired phase with faceted nanoparticles at as low a temperature as 600 degrees C. A high saturation moment of similar to 47 emu/gm is realized at 10 K with a good square hysteresis loop. In 650 degrees C annealed sample, room temperature magnetization of similar to 15 emu/gm was obtained, which brings the nanoparticles in the applicability domain.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.75</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gaikwad, Abaji G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Behavior of the transport and separation of lanthanum, yttrium and lutetium metal ions through a celluose fiber supported solid membrane</style></title><secondary-title><style face="normal" font="default" size="100%">Macedonian Journal of Chemistry and Chemical Engineering</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">binary mixture</style></keyword><keyword><style  face="normal" font="default" size="100%">cellulose fiber membrane</style></keyword><keyword><style  face="normal" font="default" size="100%">Citric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">complexing reagent</style></keyword><keyword><style  face="normal" font="default" size="100%">Lanthanum</style></keyword><keyword><style  face="normal" font="default" size="100%">lutetium</style></keyword><keyword><style  face="normal" font="default" size="100%">metal ions</style></keyword><keyword><style  face="normal" font="default" size="100%">Separation</style></keyword><keyword><style  face="normal" font="default" size="100%">transport studies</style></keyword><keyword><style  face="normal" font="default" size="100%">yttrium</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Jan</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">SOC CHEMISTS TECHNOLOGISTS MADECONIA</style></publisher><pub-location><style face="normal" font="default" size="100%">STS CYRIL &amp; METHODIUS UNIV, FAC TECHNOL &amp; METALLURGY, PO BOX 560, RUGER BOSKOVIC 16, SKOPJE, MK-1001, MACEDONIA</style></pub-location><volume><style face="normal" font="default" size="100%">31</style></volume><pages><style face="normal" font="default" size="100%">255-269</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A newly designed membrane cell was used to study the behavior of the transport and separation of lanthanum, yttrium and lutetium metal ions using a cellulose fiber supported solid membrane. The cellulose fiber membrane was prepared by the chemical modification of cellulose fiber using an esterification reaction with citric acid. Different experimental variables were investigated, such as time, membrane size, stirring of the source and receiving phases and the pH of the source phase. The use of different stripping agents in the receiving phase was explored, including nitric acid, hydrochloric acid, sodium nitrate, ammonium thiocyanate, D(2)EHPA, TBP, Aliquat-336, tartaric acid, EDTA and organic solvents. Pre-concentration of lanthanum, yttrium and lutetium metal ions from dilute solutions was carried out.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">0.821
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nandiwale, Kakasaheb Y.</style></author><author><style face="normal" font="default" size="100%">Gogoi, Pranjal</style></author><author><style face="normal" font="default" size="100%">Bokade, Vijay V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Catalytic upgrading of citric acid to environmental friendly tri-butyl citrate plasticizer over ultra stable phosphonated Y zeolite</style></title><secondary-title><style face="normal" font="default" size="100%">Chemical Engineering Research &amp; Design</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Butanol</style></keyword><keyword><style  face="normal" font="default" size="100%">Citric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">heterogeneous catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Plasticizer</style></keyword><keyword><style  face="normal" font="default" size="100%">Tributyl citrate</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">INST CHEMICAL ENGINEERS</style></publisher><pub-location><style face="normal" font="default" size="100%">165-189 RAILWAY TERRACE, DAVIS BLDG, RUGBY CV21 3HQ, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">98</style></volume><pages><style face="normal" font="default" size="100%">212-219</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The catalytic synthesis of non-toxic/eco-friendly tributyl citrate (TBC) plasticizer by esterification of renewable citric acid (CA) with butanol would be completely sustainable route. In this context, catalytic performance of parent ultra stable Y (USY) and phosphonated USY catalysts were investigated for TBC synthesis. Parent USY and phosphonated USY catalysts were characterized by powder X-ray diffraction (XRD), N-2 adsorption-desorption, NH3 temperature programmed desorption (TPD), pyridine-Fourier Transform Infrared Spectroscopy (FTIR), FTIR, SEM, ICP. The influence of various process parameters such as phosphorous (P) loading (0 to 4 wt/%), catalyst loading (5-25%), molar ratio of CA to n-butanol (1:4 to 1:12), reaction temperature (383-423 K) and reaction time (1-5 h) have been investigated over USY catalyst with aim to maximize CA conversion and TBC yield. Amongst the studied catalysts, the 2% (w/w) P/USY was found to be highly potential catalyst with complete CA conversion (100%) and 93% TBC yield. The present method of using 2% (w/w) P/USY catalyst for the synthesis of TBC would be environmentally benign in the context of bio-renewable synthetic route, high catalytic activity, non-toxic product, long term stability and reusability of catalyst (five catalytic cycles). (c) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved,&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">2.525</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">S. Chikkamath</style></author><author><style face="normal" font="default" size="100%">J. Manjanna</style></author><author><style face="normal" font="default" size="100%">N. Momin</style></author><author><style face="normal" font="default" size="100%">B.G. Hegde</style></author><author><style face="normal" font="default" size="100%">G.P. Nayaka</style></author><author><style face="normal" font="default" size="100%">Aishwarya S. Kar</style></author><author><style face="normal" font="default" size="100%">B.S. Tomar</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Na-montmorillonite to Fe(II)-Mt using ferrous citrate/ascorbate obtained by dissolving iron powder</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Clay Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ascorbic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Bentonite</style></keyword><keyword><style  face="normal" font="default" size="100%">Citric acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Cr(VI) reduction</style></keyword><keyword><style  face="normal" font="default" size="100%">Fe(II)-montmorillonite</style></keyword><keyword><style  face="normal" font="default" size="100%">Iron dissolution</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">217</style></volume><pages><style face="normal" font="default" size="100%">106396</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Bentonite containing montmorillonite (Mt) as the major clay mineral is the potential buffer material of engineered barrier system in the deep geological repository for high-level waste management. The corrosion products of canister/or overpack material (carbon steel) may alter the basic characteristics of bentonite through Fe/clay interaction and formation of FeMt to certain extent. A convenient method is required for quantitative preparation of Fe(II)-Mt because the only few direct methods reported have some limitations. For this, weak ferrous complexes having good solubility to facilitate the cation-exchange with bentonite is essential. Therefore, Fe(II)-citrate, Fe(II)-ascorbate and Fe(II)-citrate/ascorbate were obtained here by dissolving the iron powder (Fe0) in citric acid (CA), ascorbic acid (AA) and their equimolar mixtures from 25 mM to 300 mM at 70 °C under N2 atmosphere. The redox potential was measured to monitor the dissolution of Fe0 in these mild organic acids. Higher dissolution of Fe0 occurred in CA + AA mixture. The dissolved iron in the form of ferrous complex was reasonably stable in inert atmosphere, Fe2+/Fetotal ≈ 1. The parent clay mineral (bentonite, NaMt) was treated with Fe(II) − cit/asc to form Fe(II) − Mt. through cation exchange process. The CEC and ferrous to ferric ratio of the Fe(II)-Mt was close to the stoichiometric amount. The XRF, XRD, ac impedance, FT-IR, TGA/DSC, XPS and FE-SEM are used for further characterization. In-situ complexation reaction of interlayer Fe2+ ions in Fe(II)-Mt with o-phenanthroline was also observed.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">5.467</style></custom4></record></records></xml>