نتایج جستجو برای: vapour phase

تعداد نتایج: 606226  

Journal: :Journal of Non-Equilibrium Thermodynamics 2002

Journal: :The Journal of the Society of Chemical Industry, Japan 1971

1995
P. F. Harris

The applications of supported metal catalysts vary widely, from selective hydrogenation in the fine chemicals industry to the control of vehicle emissions. Yet many basic questions about the structure, activity, and durability of these catalysts remain unanswered. For example, there is still much uncertainty about the mechanism of metal particle growth, or sintering, which is a major cause of c...

Journal: :IEEJ Transactions on Fundamentals and Materials 1974

Journal: :Computers & Chemical Engineering 2011
Li-Ping Chung Chuei-Tin Chang

Reducing contamination level is of primary importance for the safety and efficiency of a MOCVD process. Off-line fault identification is one of the basic tasks that must be performed in hazard analysis to identify potential operational problems. For illustration convenience, the scope of present study is limited to the purge-gas purifier of the process. A systematic step-by-step procedure is pr...

2006
Susannah L. Scott Azfar Hassan

A heterogeneous olefin epoxidation catalyst containing both V and Ti in the active site was prepared by sequential non-hydrolytic grafting. The silica was exposed first to VO(OPr)3 vapor followed by Ti(O Pr)4 vapor. Formation of propene is evidence for the creation of Ti-O-V linkages on the surface. Upon metathesis of the 2-propoxide ligands with BuOOH, the catalyst becomes active for the gas p...

Journal: :Microelectronics Journal 2005
Shang-Chia Chen Shih-Kai Lin Kun-Ta Wu Chao-Ping Huang Pen-Hsiu Chang N. C. Chen Chin-An Chang Hsian-Chu Peng Chuang-Feng Shih Kuo-Shung Liu

Pen-Hsiu Chang , N.C. Chen, Chin-An Chang1, Hsian-Chu Peng, Chuang-Feng Shih, KuoShung Liu, Shih-Kai Lin, Kun-Ta Wu, Shang-Chia Chen, Chao-Ping Huang, Hong-Syuan Wang, Pu-Tai Yang, C.-T. Liang, Y.H. Chang and Y.F. Chen Institute of Electro-Optical Engineering, Chang Gung University, Kwei-Shan, Tao-Yuan 333, Taiwan Department of Materials Science and Engineering, National Tsing Hua University, H...

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