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Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures
นักวิจัย : Sreekumaran Nair, A. , Zhu, Peining , Jagadeesh Babu, Veluru. , Yang, Shengyuan , Peng, Shengjie , Ramakrishna, Seeram
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Sreekumaran Nair, A., Zhu, P., Jagadeesh, B. V., Yang, S., Peng, S., & Ramakrishna, S. (2012). Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures. RSC Advances, 2(3), 992-998. , 2046-2069 , http://hdl.handle.net/10220/10400 , http://dx.doi.org/10.1039/c1ra00466b
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : RSC advances
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

We report a low temperature alkali-mediated conversion of nanofiber-and rice grain-shaped TiO2–SiO2 composites into highly anisotropic fiber (decorated with thorn-like features on surfaces)/sponge-shaped titanates of the formula Na2−xHxTi2O4(OH)2. The titanates were thoroughly characterized by spectroscopy and microscopy. Control experiments with the respective TiO2 analogues revealed that the unique open and highly porous morphologies were the result of structural rearrangement of TiO2 coupled with the in situ leaching of SiO2 from the composites by the alkali. Effect of concentration of the alkali and the reaction temperature on the morphology of the titanates was also probed. Evolution of the unique morphologies from the respective starting materials was studied by scanning electron microscopy analyses of the systematically withdrawn samples during the course of the reaction. The materials utilized in dye-sensitized solar cells showed excellent photovoltaic parameters amongst the category of titanates.

บรรณานุกรม :
Sreekumaran Nair, A. , Zhu, Peining , Jagadeesh Babu, Veluru. , Yang, Shengyuan , Peng, Shengjie , Ramakrishna, Seeram . (2555). Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sreekumaran Nair, A. , Zhu, Peining , Jagadeesh Babu, Veluru. , Yang, Shengyuan , Peng, Shengjie , Ramakrishna, Seeram . 2555. "Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sreekumaran Nair, A. , Zhu, Peining , Jagadeesh Babu, Veluru. , Yang, Shengyuan , Peng, Shengjie , Ramakrishna, Seeram . "Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Sreekumaran Nair, A. , Zhu, Peining , Jagadeesh Babu, Veluru. , Yang, Shengyuan , Peng, Shengjie , Ramakrishna, Seeram . Highly anisotropic titanates from electrospun TiO2–SiO2 composite nanofibers and rice grain-shaped nanostructures. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.