000			01935nam a22002537a 4500
003			ZW-GwMSU
005			20250318083028.0
008			250318b |||||||| |||| 00| 0 eng d
022			_a09743626
040			_aMSU _bEnglish _cMSU _erda
050	0	0	_aQD31 JOU
100	1		_aCharan, P. H. K. _eauthor
245	1	0	_aTextural and morphological studies of transition metal doped SBA-15 by co-condensation method / _ccreated by P. H. K. Charan and G. Ranga Rao
264	1		_aBangalore : _bSpringer, _c2015.
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aJournal of chemical sciences _vVolume 127, number 5,
520	3		_aThe 3d transition metals were incorporated into SBA-15 matrix by co-condensation synthesis method. Very low concentrations of metals were introduced into silica framework by maintaining the metal to silica ratio in the synthesis gel at 0.01. The difference in hydrolysis rates of metal and silica precursors have led to textural modifications while demonstrating the structural integrity akin to pristine SBA-15. The physicochemical properties obtained offer some insights into the P123 micelle aggregation and mechanism of formation of silica network in the presence of metal salts under similar synthesis conditions of pure SBA-15. The metal doping into SBA-15 leads to increased pore diameters. Higher lattice constants (a0) observed in these samples are attributed to the increased pore wall thickness. The significant retention of the hexagonal mesostructure seen in LXRD indicates diminutive influence of metal salts at lower concentrations. Macroscopic morphologies studied by SEM show the formation of spheres along with conventional fibre-like rods.
650			_aTransition metal _vSBA-15 _xCo-condensation
700	1		_aRao, G. Ranga _eco author
856			_uhttps://doi.org/10.1007/s12039-015-0847-5
942			_2lcc _cJA
999			_c169333 _d169333