نتایج جستجو برای: h2 separation

تعداد نتایج: 146783  

2005
Nirupam Roy Jayaram N. Chengalur

We present measurements of the H i spin temperatures (Ts) of the Cold Neutral Medium (CNM) towards radio sources that are closely aligned with stars for which published H2 ortho-para temperatures (T01) are available from UV observations. Our sample consists of 18 radio sources close to 16 nearby stars. The transverse separation of the lines of sight of corresponding the UV and radio observation...

2012
Tamil Many K. Thandavan Chiow San Wong Siti Meriam Abdul Gani Roslan Md Nor

The [O] [H] functionalization of carbon nanotube (CNT) was studied using oxygen–hydrogen (O2–H2) gas mixture direct current (DC) glow discharge plasma technique for cathode/CNT-anode separation of 0.10 ± 0.01 cm. O2 and H2 were fixed at flowrate of 10.0 ml/min in order to obtain gas mixture ratio of 1:1. During the (O2–H2) gas mixture DC glow discharge, current–voltage (I–V) characteristic of g...

2012
Joana Durão Luis Gales

Gas separation using porous solids have attracted great attention due to their energetic applications. There is an enormous economic and environmental interest in the development of improved technologies for relevant processes, such as H2 production, CO2 separation or O2 and N2 purification from air. New materials are needed for achieving major improvements. Crystalline materials, displaying un...

2013
C. R. Forero P. Gayán L. F. de Diego A. Abad F. García-Labiano J. Adánez Miguel Luesma

Chemical-Looping Combustion (CLC) is an emerging technology for CO2 capture because separation of this gas from the other flue gas components is inherently to the process and thus no energy is expended for the separation. For its use with coal as fuel in power plants, a process integrated by coal gasification and CLC would have important advantages for CO2 capture. This paper presents the combu...

2005
M. C. Elwenspoek

Submicron thick palladium–silver alloy films with 23 wt.% of silver (Pd–Ag23) have been synthesized by simultaneous sputtering from pure targets of Pd and Ag. Full characterization of the deposited films was performed by using X-ray photoelectron spectroscopy, highresolution scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction. The analytical res...

Journal: :Nanoscale 2018
Weinan Xing Gang Chen Chunmei Li Zhonghui Han Yidong Hu Qingqiang Meng

Searching for effective approaches of accelerating charge separation and broadening optical absorption is critical for designing a high-performance photocatalytic system. Herein, a photocatalyst based on the non-metal group doped porous ultrathin g-C3N4 nanosheets (CNB NS) was prepared through a combined methodology of precursor reforming and thermal condensation. The synergistic effect of non-...

Journal: :The Journal of organic chemistry 2009
Jarugu Narasimha Moorthy Palani Natarajan Paloth Venugopalan

Tetraarylpyrenes H1-H4 that typify molecular systems with orthogonal planes and lack hydrogen bonding functional groups were designed as new host systems with three distinct domains for guest inclusion. In particular, H2 and H4 hosts are found to include a variety of guest molecules. We have determined 42 crystal structures overall (i) to establish the importance of skeletal features of the hos...

1997
Christopher J. Davis Jochen Eislöffel Thomas P. Ray Tim Jenness

Optical, near-infrared, and sub-millimetre observations of the outflow from the young (Class I/Class 0) source RNO15-FIR indicate that it is jet-driven, and that the “prompt” or bow shock entrainment mechanism dominates over “turbulent” entrainment. The CO J=3-2 observations presented in this paper reveal a collimated, bipolar, molecular outflow driven by RNO15-FIR. The peaks in the CO outflow ...

2013
Matthew D. Yates Roland D. Cusick Bruce E. Logan

Sustainable methods are needed to recycle precious metals and synthesize catalytic nanoparticles. Palladium nanoparticles can be produced via microbial reduction of soluble Pd(II) to Pd(0), but in previous tests using dissimilatory metal reducing bacteria (DMRB), the nanoparticles were closely associated with the cells, occupying potential reductive sites and eliminating the potential for cell ...

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