PMID- 18700753
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20081210
LR  - 20080910
IS  - 1520-510X (Electronic)
IS  - 0020-1669 (Linking)
VI  - 47
IP  - 18
DP  - 2008 Sep 15
TI  - Nanoparticulated silicas with bimodal porosity: chemical control of the pore 
      sizes.
PG  - 8267-77
LID - 10.1021/ic800893a [doi]
AB  - Nanoparticulated bimodal porous silicas (NBSs) with pore systems structured at 
      two length scales (meso- and large-meso-/macropores) have been prepared through a 
      one-pot surfactant-assisted procedure by using a simple template agent and 
      starting from silicon atrane complexes as hydrolytic inorganic precursors. The 
      final bulk materials are constructed by an aggregation of pseudospherical 
      mesoporous primary nanoparticles process, over the course of which the 
      interparticle (textural) large pore system is generated. A fine-tuning of the 
      procedural variables allows not only an adjustment of the processes of nucleation 
      and growth of the primary nanoparticles but also a modulation of their subsequent 
      aggregation. In this way, we achieve good control of the porosity of both the 
      intra- and interparticle pore systems by managing independent variables. We 
      analyze in particular the regulating role played by two physicochemical 
      variables: the critical micelar concentration (cmc) of the surfactant and the 
      dielectric constant of the reaction medium.
FAU - El Haskouri, Jamal
AU  - El Haskouri J
AD  - Institut de Ciencia dels Materials de la Universitat de Valencia, P.O. Box 22085, 
      46071-Valencia, Spain. haskouri@uv.es
FAU - Morales, Jose Manuel
AU  - Morales JM
FAU - Ortiz de Zarate, David
AU  - Ortiz de Zarate D
FAU - Fernandez, Lorenzo
AU  - Fernandez L
FAU - Latorre, Julio
AU  - Latorre J
FAU - Guillem, Carmen
AU  - Guillem C
FAU - Beltran, Aurelio
AU  - Beltran A
FAU - Beltran, Daniel
AU  - Beltran D
FAU - Amoros, Pedro
AU  - Amoros P
LA  - eng
PT  - Journal Article
DEP - 20080814
PL  - United States
TA  - Inorg Chem
JT  - Inorganic chemistry
JID - 0366543
EDAT- 2008/08/15 09:00
MHDA- 2008/08/15 09:01
CRDT- 2008/08/15 09:00
PHST- 2008/08/15 09:00 [pubmed]
PHST- 2008/08/15 09:01 [medline]
PHST- 2008/08/15 09:00 [entrez]
AID - 10.1021/ic800893a [doi]
PST - ppublish
SO  - Inorg Chem. 2008 Sep 15;47(18):8267-77. doi: 10.1021/ic800893a. Epub 2008 Aug 14.