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Pregled bibliografske jedinice broj: 706716

Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems


Ren, Nan; Bosnar, Sanja; Bronić, Josip; Dutour Sikirić, Maja; Mišić, Tea; Svetličić, Vesna; Mao, Jian-Jiang; Antonić Jelić, Tatjana; Hadžija, Mirko; Subotić, Boris
Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems // Langmuir, 30 (2014), 28; 8570-8579 doi:10.1021/la5012296 (međunarodna recenzija, članak, znanstveni)


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Naslov
Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems

Autori
Ren, Nan ; Bosnar, Sanja ; Bronić, Josip ; Dutour Sikirić, Maja ; Mišić, Tea ; Svetličić, Vesna ; Mao, Jian-Jiang ; Antonić Jelić, Tatjana ; Hadžija, Mirko ; Subotić, Boris

Izvornik
Langmuir (0743-7463) 30 (2014), 28; 8570-8579

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
zeolite crystallization; heterogeneous systems; early stage; subcolloidal precursor species; worm-like particles

Sažetak
A critical analysis was carried out for the purpose of understanding the role of subcolloidal (nanosized) (alumino)silicate precursor species in the early stage of crystallization of zeolites in heterogeneous systems (hydrogels). The formation and evolution of these subcolloidal species in both the solid and the liquid phases were investigated by various experimental methods such a scanning electron microscopy (SEM, FE-SEM), transmission electron microscopy, atomic force microscopy, particle size analysis, pH measurement, atomic absorption spectroscopy, and dynamic light scattering, after careful separation of intermediates from reaction mixture by two-step centrifugation treatment. The results revealed that a chain of processes (i) the formation of low-molecular-weight (LMW) silicate species, by dissolution of Al-enriched amorphous silica, and their aggregation into about 3 nm sized primary precursor species (PPSs), (ii) the formation of larger (3 to 15 nm sized) silicate precursor species (LSPSs) by a rapid aggregation/coalescence of PPSs, (iii) the formation of “gel” (primary amorphous precursor) by a random aggregation of LSPSs at room temperature, and (iv) the formation of the worm-like particles (secondary amorphous precursor) occurred in the solid phase during heating of the reaction mixture (hydrogel) from room temperature to 170 °C. It is interesting that almost the same processes occur in the liquid phase but with decreased rate according to the relative low concentration of LMW silicate species. With the above described findings, it is highly expected that the manipulation of crystallization pathway through controlling the formation/evolution of precursor species in the initial stage of the process can be achieved.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Temeljne medicinske znanosti



POVEZANOST RADA


Projekti:
098-0982464-2460 - Dobivanje struktura nalik Langerhansovim otočićima iz matičnih stanica miša (Hadžija, Mirko, MZOS ) ( POIROT)
098-0982904-2953 - Studij utjecaja svojstava alumosilikatnih prekursora na njihove transformacije (Bronić, Josip, MZOS ) ( POIROT)
098-0982934-2744 - Površinske sile na atomskoj skali u istraživanju mora i nanotehnologiji (Svetličić, Vesna, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Poveznice na cjeloviti tekst rada:

doi pubs.acs.org

Citiraj ovu publikaciju:

Ren, Nan; Bosnar, Sanja; Bronić, Josip; Dutour Sikirić, Maja; Mišić, Tea; Svetličić, Vesna; Mao, Jian-Jiang; Antonić Jelić, Tatjana; Hadžija, Mirko; Subotić, Boris
Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems // Langmuir, 30 (2014), 28; 8570-8579 doi:10.1021/la5012296 (međunarodna recenzija, članak, znanstveni)
Ren, N., Bosnar, S., Bronić, J., Dutour Sikirić, M., Mišić, T., Svetličić, V., Mao, J., Antonić Jelić, T., Hadžija, M. & Subotić, B. (2014) Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems. Langmuir, 30 (28), 8570-8579 doi:10.1021/la5012296.
@article{article, author = {Ren, Nan and Bosnar, Sanja and Broni\'{c}, Josip and Dutour Sikiri\'{c}, Maja and Mi\v{s}i\'{c}, Tea and Svetli\v{c}i\'{c}, Vesna and Mao, Jian-Jiang and Antoni\'{c} Jeli\'{c}, Tatjana and Had\v{z}ija, Mirko and Suboti\'{c}, Boris}, year = {2014}, pages = {8570-8579}, DOI = {10.1021/la5012296}, keywords = {zeolite crystallization, heterogeneous systems, early stage, subcolloidal precursor species, worm-like particles}, journal = {Langmuir}, doi = {10.1021/la5012296}, volume = {30}, number = {28}, issn = {0743-7463}, title = {Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems}, keyword = {zeolite crystallization, heterogeneous systems, early stage, subcolloidal precursor species, worm-like particles} }
@article{article, author = {Ren, Nan and Bosnar, Sanja and Broni\'{c}, Josip and Dutour Sikiri\'{c}, Maja and Mi\v{s}i\'{c}, Tea and Svetli\v{c}i\'{c}, Vesna and Mao, Jian-Jiang and Antoni\'{c} Jeli\'{c}, Tatjana and Had\v{z}ija, Mirko and Suboti\'{c}, Boris}, year = {2014}, pages = {8570-8579}, DOI = {10.1021/la5012296}, keywords = {zeolite crystallization, heterogeneous systems, early stage, subcolloidal precursor species, worm-like particles}, journal = {Langmuir}, doi = {10.1021/la5012296}, volume = {30}, number = {28}, issn = {0743-7463}, title = {Role of Subcolloidal (Nanozized) Precursor Species in the Early Stage of the Crystallization of Zeolites in Heterogeneous Systems}, keyword = {zeolite crystallization, heterogeneous systems, early stage, subcolloidal precursor species, worm-like particles} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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