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Growth and characterization of nanos...

Kim, Soo Hyung.

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Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods./
作者:	Kim, Soo Hyung.
面頁冊數:	152 p.
附註:	Advisers: Benjamin Y. H. Liu; Michael R. Zachariah.
Contained By:	Dissertation Abstracts International64-03B.
標題:	Engineering, Mechanical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3083275

Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods.
Kim, Soo Hyung.

Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods. - 152 p.

Advisers: Benjamin Y. H. Liu; Michael R. Zachariah.

Thesis (Ph.D.)--University of Minnesota, 2003.

The present research is aimed at developing methods to characterize and study the growth of nano-particles and nano-structured materials. The thesis is divided into two parts. One part deals with the development of the tandem differential mobility analyzer (TDMA), which is the principal method used in this study to characterize the size and electrical charge of particles formed in a high temperature flame. The second part of the thesis deals with the formation of nano-structured materials with zeolite-type structures. The particles are characterized to determine their size, porosity and surface area.Subjects--Topical Terms:

783786
Engineering, Mechanical.

Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods.
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100 1 $a Kim, Soo Hyung. $3 1258399
245 1 0 $a Growth and characterization of nanostructured aerosol produced by diffusion flame and spray pyrolysis methods.
300 $a 152 p.
500 $a Advisers: Benjamin Y. H. Liu; Michael R. Zachariah.
500 $a Source: Dissertation Abstracts International, Volume: 64-03, Section: B, page: 1454.
502 $a Thesis (Ph.D.)--University of Minnesota, 2003.
520 $a The present research is aimed at developing methods to characterize and study the growth of nano-particles and nano-structured materials. The thesis is divided into two parts. One part deals with the development of the tandem differential mobility analyzer (TDMA), which is the principal method used in this study to characterize the size and electrical charge of particles formed in a high temperature flame. The second part of the thesis deals with the formation of nano-structured materials with zeolite-type structures. The particles are characterized to determine their size, porosity and surface area.
520 $a It is well known that nano-sized aerosol particles from combustion sources are charged. Even though the basic charging mechanisms are reasonably well understood qualitatively, techniques for characterizing the charge and size distribution of aerosols from combustion sources are not well developed. In the present study, a method is developed to accurately measure the charge and size distribution of nano-sized combustion aerosols by means of a TDMA. From a series of TDMA measurements, the charge fraction of nano-sized soot particles from a flame is obtained as a function of equivalent mobility particle diameter ranging from 50 to 200nm. The method is then used to characterize the size and charge of combustion aerosols. The results are compared to theory, including the new theory developed in this study.
520 $a To develop a new synthetic method of nano-structured aerosol particles, a thermal tubular reactor is employed. New spray-pyrolytic and aerosol-gel methods are developed to form nanoporous metal oxides, in which thermally stable and easily leached inorganic matrix is employed to extend the porosity of zeolite-typed materials. The characteristics of the nanoporous material, such as surface area and particle morphology are investigated as a function of relative humidity, temperature, and precursor fractions. The physical and chemical properties of materials synthesized are examined by using various characterization techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FT-IR), X-ray diffractometry (XRD), thermal gravimetric analysis (TGA), differential mobility particle sizer (DMPS), and gas sorptometry (BET).
590 $a School code: 0130.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Physics, Fluid and Plasma. $3 1018402
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710 2 0 $a University of Minnesota. $3 676231
773 0 $t Dissertation Abstracts International $g 64-03B.
790 $a 0130
790 1 0 $a Liu, Benjamin Y. H., $e advisor
790 1 0 $a Zachariah, Michael R., $e advisor
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3083275