Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Jan 14;12(2):252.
doi: 10.3390/ma12020252.

Lamellar-like Electrospun Mesoporous Ti-Al-O Nanofibers

Oren Elishav  1 , Liz Poliak  2 , Iris Naamat  3 , Vadim Beilin  4 , Gennady E Shter  5 , Gideon S Grader  6
Affiliations

Lamellar-like Electrospun Mesoporous Ti-Al-O Nanofibers

Oren Elishav et al. Materials (Basel). .

Abstract

Ceramic oxides nanofibers are promising materials as catalysts, electrodes and functional materials. In this report, a unique lamellar-like mesoporous structure was realized for the first time in a new system based on titania and alumina. The final structure was found to be highly dependent on the process conditions which are outlined herein. In view of the similar architecture we recently obtained with Fe-Al-O fibers, the pore formation mechanism we outline herein is general and is applicable to additional systems.

Keywords: ceramic materials; electrospinning; nanofibers; porous.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Electrospun fibers before thermal treatment (a) of Solution II, similar results obtained with solutions III and IV (b) of solution I showing beads formation.
Figure 2
Figure 2
Electrospun nanofiber after thermal treatment (a) solution I (b) solution II (c) solution III (d) solution IV (e) Solution II, higher magnification.
Figure 2
Figure 2
Electrospun nanofiber after thermal treatment (a) solution I (b) solution II (c) solution III (d) solution IV (e) Solution II, higher magnification.
Figure 3
Figure 3
An XRD pattern of sintered nanofibers solution II.
Figure 4
Figure 4
HRSEM image of Ti-Al-O nanofiber after sintering to 900 °C (Solution II).
Figure 5
Figure 5
HRSEM images of electrospun and thermally treated nanofibers. (a) pure Titanium(IV) isopropoxide precursor, (b) pure Al(AcAc)3 precursor.
Figure 6
Figure 6
Thermal analysis with evolved gas analysis of Ti-Al-O nanofibrous mat. Vertical dashed lines represent a process stage (denoted as S1–S5). (a) TGA/DTA/DTG curves. (b) Evolved gases detected by MS.
See this image and copyright information in PMC

References

    1. Greiner A., Wendorff J.H. Electrospinning: A Fascinating Method for the Preparation of Ultrathin Fibers. Angew. Chem. Int. Ed. 2007;46:5670–5703. doi: 10.1002/anie.200604646. - DOI - PubMed
    1. Li H., Bian Z., Zhu J., Zhang D., Li G., Huo Y., Li H., Lu Y. Mesoporous titania spheres with tunable chamber stucture and enhanced photocatalytic activity. J. Am. Chem. Soc. 2007;129:8406–8407. doi: 10.1021/ja072191c. - DOI - PubMed
    1. Li W., Yue Q., Deng Y., Zhao D. Ordered mesoporous materials based on interfacial assembly and engineering. Adv. Mater. 2013;25:5129–5152. doi: 10.1002/adma.201302184. - DOI - PubMed
    1. Wu K.C.-W., Yamauchi Y. Controlling physical features of mesoporous silica nanoparticles (MSNs) for emerging applications. J. Mater. Chem. 2012;22:1251. doi: 10.1039/C1JM13811A. - DOI
    1. Nakata K., Fujishima A. TiO2 Photocatalysis: Design and Applications. J. Photochem. Photobiol. C Photochem. Rev. 2012;13:169–189. doi: 10.1016/j.jphotochemrev.2012.06.001. - DOI

LinkOut - more resources