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Ordered titanium dioxide nanotubular...

Mahajan, Vishal Khomdeo.

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Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior./
作者:	Mahajan, Vishal Khomdeo.
面頁冊數:	144 p.
附註:	Adviser: Manoranjan Misra.
Contained By:	Dissertation Abstracts International69-08B.
標題:	Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3316382
ISBN:	9780549696278

Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior.
Mahajan, Vishal Khomdeo.

Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior. - 144 p.

Adviser: Manoranjan Misra.

Thesis (Ph.D.)--University of Nevada, Reno, 2008.

Generation of hydrogen using solar energy and water in a Photo-electrochemical (PEC) system is the most promising method to acquire alternative and renewable energy. Economic feasibility of PEC system requires the energy conversion efficiency (ECE) of 10%, while ensuring high durability of its components. Therefore, the research in this area is based on (i) utilization of renewable sources such as water and solar energy, (ii) improvement in the properties of photoelectrodes to convert maximum of solar energy into hydrogen (chemical energy), (iii) use of environmentally safe materials in the PEC system, (iv) scalability of the process, and (v) durability of the materials used for designing the PEC systems.

ISBN: 9780549696278Subjects--Topical Terms:

876794
Energy.

Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior.
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245 1 0 $a Ordered titanium dioxide nanotubular arrays: Synthesis, characterization and photoelectrochemical behavior.
300 $a 144 p.
500 $a Adviser: Manoranjan Misra.
500 $a Source: Dissertation Abstracts International, Volume: 69-08, Section: B, page: .
502 $a Thesis (Ph.D.)--University of Nevada, Reno, 2008.
520 $a Generation of hydrogen using solar energy and water in a Photo-electrochemical (PEC) system is the most promising method to acquire alternative and renewable energy. Economic feasibility of PEC system requires the energy conversion efficiency (ECE) of 10%, while ensuring high durability of its components. Therefore, the research in this area is based on (i) utilization of renewable sources such as water and solar energy, (ii) improvement in the properties of photoelectrodes to convert maximum of solar energy into hydrogen (chemical energy), (iii) use of environmentally safe materials in the PEC system, (iv) scalability of the process, and (v) durability of the materials used for designing the PEC systems.
520 $a In present investigation, PEC hydrogen generation was explored by using nanotubular TiO2 photoanodes. One dimensional ordered TiO 2 nanotubes were synthesized by two different techniques. In the first technique, nanotubular TiO2 was prepared in the acidic electrolyte in the presence of fluoride ions. The adventitious one dimensional structure of TiO2 was tested for their material properties by using different characterization tools such as SEM, XRD, UV-VIS and XPS. Effect of heat treatment on their properties was evaluated.
520 $a In the second TiO2 nanotube synthesis method, organic electrolyte was used. Presence of carbon in the TiO2 nanotubes and its effect on the material properties was studied. Photolectrochemical studies of this material showed increase in the PEC hydrogen generation efficiency after incorporation of the carbon.
520 $a The process scalability was tested by studying the effect of geometrical area of nanotubular TiO2 photoanodes on its PEC performance. A new Pt/TiO2 cathode was also synthesized by using Pt nanoparticles and TiO2 nanotubes. Newly designed cathode gave similar PEC hydrogen generation efficiency when compared with a Pt foil cathode promising the good performance at low cost. Stability of nanotubular TiO2 arrays was tested by carrying out the PEC hydrogen generation experiments for one month.
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