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学习优化
第476期“工物学术论坛”:Combining mechanistic models and data-driven algorit...
Conversion of Biomass into Useful Chemicals and Biofuel
Publishing with Chem from Cell Press(腾讯会议:389-181-164)
报告题目:
Nanomaterials Synthesis in Flame and Plasma Systems: Metal-Oxides, Carbon Nanotubes, and III-Nitrides
 报告人:
Stephen D. Tse
Associate Professor (Tenure) 
Department of Mechanical and Aerospace Engineering
Rutgers–the State University of New Jersey
报告时间:
2009-03-03 10:00
报告地点:
热能工程系馆报告厅(二校门东侧50米)
主办单位:
热能系
  简介:

报告内容:

   Gas-phase synthesis of materials has demonstrated a history of scalability and offers the potential for high-volume commercial production, at reduced costs.  Flame synthesis of ceramic oxide nanoparticles, carbon nanotubes (CNTs), and semiconducting metal-oxide nanostructures will be discussed.  Plasma synthesis affords the synthesis of non-oxide materials, such as Group III-Nitride nanopowders, which will be discussed.

      Al2O3 and TiO2 nanoparticles are produced from corresponding organometallic vapor precursors using an axisymmetric stagnation-point premixed flat flame impinging on a cooled substrate under uniform electric field application.  Well-aligned CNTs are produced in diffusion flames on catalytic supports.  In utilizing combustion, a portion of the hydrocarbon gas provides the elevated temperatures required, with the remaining fuel serving as the hydrocarbon reagent, thereby constituting an efficient source of energy and hydrocarbon reactant.  Other nanostructures, such as WOx nanowires, ZnO ribbons, and MOx nanostructures are also synthesized, whereby growth occurs by the vapor-solid mechanism, with local gas-phase temperature and chemical species strategically specified at the substrate for self-synthesis.  Finally, cubic-BN and cubic-GaN nanopowders (which are especially attractive for photonic and structural applications) are synthesized using a novel, aerodynamically-enhanced plasma process, with an eye towards consolidation into bulk nanomaterials.

 

学术经历:Ph. D., 加州大学伯克利 机械工程系,  1996.

M. A., 加州大学伯克利 机械工程系,  1994.

B.S. E. 普林斯顿大学 机械航空工程系, 1991.

工作经历:Postdoc, 普林斯顿大学 机械航空工程系, 1996-2000.

          Assist. Prof. 罗格斯大学(新泽西州立) 机械工程系, 2001-2006.

          Assoc. Prof. 罗格斯大学(新泽西州立) 机械工程系, 2006-至今.

学术奖励:

1998 AIAA Best Paper Award in Microgravity Science and Space Processing;

2001 AIAA Best Paper Award in Propulsion and Combustion;

The AIAA Microgravity and Space Processes Technical Committee (as Chair-Elect);

The colloquium chair of 32nd combustion symposium on division of Heterogeneous combustion and flame synthesis.

 

Brief Bio Sketch

Prof. Tse received his B.S.E. in Engineering Physics from Princeton University in 1991, and his M.S. and Ph.D. in Mechanical Engineering from the University of California at Berkeley in 1994 and 1996, respectively.  He was on the Research Staff at Princeton University from 1997 to 2000, and has been at Rutgers since 2001.  He is presently an Associate Professor and the Outreach Director in the Department of Mechanical and Aerospace Engineering.

Prof. Tse’s research focus is in the thermal sciences, involving applications in nanomaterials synthesis, plasma processes, CVD, and advanced laser-based diagnostics.  His research methodologies encompass experimentation, computational simulation of complex flows and chemistry, and mathematical analysis.  He has designed experiments and diagnostics that have flown on the Space Shuttle or are being planned for the International Space Station.  While at U.C. Berkeley, he was supported by a NASA Graduate Student Research Fellowship.  He received the 1998 AIAA Best Paper Award in Microgravity Science and Space Processing, and the 2001 AIAA Best Paper Award in Propulsion and Combustion.  He is a member of the American Institute of Aeronautics and Astronautics, the American Society of Mechanical Engineers, and the Combustion Institute.  He serves on the AIAA Microgravity and Space Processes Technical Committee (as Chair-Elect) and on the ASME Board of Government Relations.  At Rutgers, he is an associated faculty of the Institute for Advanced Materials, Devices, and Nanotechnology and of the Nanomaterials Science and Engineering curriculum.

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