@article { ISI:000231605600022,
	title = {Silver nanoparticles of variable morphology synthesized in aqueous foams as novel templates},
	journal = {Bulletin of Materials Science},
	volume = {28},
	number = {5},
	year = {2005},
	month = {AUG},
	pages = {503-510},
	publisher = {INDIAN ACADEMY SCIENCES},
	type = {Article},
	address = {C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA},
	abstract = {<p>In this paper, we describe the synthesis of silver nanocrystals within aqueous foams as a template More specifically, we show that aqueous Ag+ ions may be electrostatically complexed with the anionic surfactants aerosol OT (sodium bis-2-ethylhexyl-sulfosuccinate, (AOT) and sodium dodecyl sulphate (SDS)) in a highly stable liquid foam. After drainage of the foam, the silver ions are reduced in situ by introducing sodium borohydride into the foam by capillary flow. This leads to the formation of silver nanoparticles of spherical, tape- and sheet-like morphology in the foam. The structure of the foam is extremely complex and presents reaction sites of different spatial extent. The differences in foam reaction-site geometry are believed to be responsible for the morphology variation in the silver nanoparticles observed. The silver nanoparticles are observed to be extremely stable in solution suggesting that the AOT or SDS molecules stabilize them. This approach appears promising for application in large-scale synthesis of nanoparticles and may be readily extended to other chemical compositions.</p>},
	keywords = {Chemical synthesis, composites, foam, Intercalation, Nanoparticles},
	issn = {0250-4707},
	doi = {10.1007/BF02711244},
	author = {Mandal, Sujata and Arumugam, S. K. and Pasricha, R. and Sastry, M.}
}
@article { ISI:000271982400003,
	title = {Characterization of clay intercalated cobalt-salen catalysts for the oxidation of p-cresol},
	journal = {Applied Catalysis A-General},
	volume = {370},
	number = {1-2},
	year = {2009},
	month = {NOV},
	pages = {16-23},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>The intercalation of cobalt-salen complexes into the interlamelar spaces of montmorillonite clay was investigated by various characterization studies. The {\textquoteleft}{\textquoteleft}neat{\textquoteright}{\textquoteright} cobalt-salen complex showed a weight loss at 368 degrees C while the weight loss for the corresponding intercalated complex was observed at much higher temperature of 492 degrees C due to decomposition of the complex. The thermal stabilization observed was due to the host-guest interaction of clay and metal complex and thus confirmed the intercalation. The XANES spectrum of Co(salen)-mont sample revealed the change of symmetry from the tetrahedral in plane to the octahedral structure having an axial bonding of oxygen to the cobalt, indicating that cobalt atoms in Co(salen)-mont were coordinated axially with the lattice oxygen of montmorillonite. Both XANES and EXAFS results indicated that cobalt atoms in Co(salen)-mont form two additional Co-O bonds with a bond length of 0.199 nm by the intercalation while retaining the Co-salen structure. Co-salen intercalated into the montmorillonite clay showed the highest activity for the air oxidation of p-cresol, giving 88\% selectivity to the oxidation products. Effects of NaOH concentration and various solvents on the conversion and selectivity patterns also have been studied. (C) 2009 Elsevier B.V. All rights reserved.</p>},
	keywords = {Cobalt-oxygen bond, Cobalt-salen, Extended X-ray absorption fine structure, Intercalation, Lattice oxygen, Montmorillonite, X-ray absorption near edge structure},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2009.09.003},
	author = {Kshirsagar, V. S. and Garade, Ajit C. and Mane, R. B. and Patil, K. R. and Yamaguchi, A. and Shirai, M. and Rode, C. V.}
}
