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Composition optimization of silica-supported copper (II) chloride catalyst for phosgene production
In this work, we checked the influences of the silica-supported copper (II) chloride substance composition on the oxychlorination of CO to phosgene. The effects of the content of copper (II) chloride, the ratio of copper to potassium, the different kinds of promoters, like sodium chloride, potassium chloride and caesium chloride, and the surface area of silica gel were systematicall...
http://www.polymer.cnt//ss/zhangtianzhu/publicationsshow_8678.html |
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85. N-Doped Carbon Hybrid Conjugates as Vectors for Photocatalytic CS2 Production
Nanostructured carbon materials have attracted much attention because the doping
or modification can efficiently induce charge delocalization and tune the work function
of carbon. Herein, we report the N-doped carbon hybrid conjugates&...
http://www.polymer.cnt//ss/ghjiang_cn/publicationsshow_8143.html |
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Effect of Post Production Processing on Dispersion of Carbon Nanofibers in Water
Dispersion of carbon nanofibers subjected to post production processing, heat treatment (HT) and pyrolytical stripping (PS), is investigated in aqueous suspension using small-angle light scattering. Both samples exhibit a hierarchical morphology consisting of small-scale aggregates and large-scale fractal agglomerates that precipitate rapidly. Although small-scale objects are formed by side-by-sid...
http://www.polymer.cnt//ss/Jian_Zhao2010/publicationsshow_6428.html |
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Biodiesel production using cation-exchange resin as heterogeneous catalyst
Three types of cation-exchange resins (NKC-9, 001 7 and D61) as solid acid catalysts were employed to prepare biodiesel from acidi?ed oils generated from waste frying oils. The results show that the catalytic activity of NKC-9 was higher than that of 001 7 and D61. The conversion of the esteri?cation by NKC-9 increased with increasing in the amount of catalyst, reaction temperature and time an...
http://www.polymer.cnt//ss/hebenqiao/publicationsshow_4848.html |
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Preparation and characterization of the organic–inorganic hybrid membrane for biodiesel production
A novel organic–inorganic hybrid membrane as heterogeneous acid catalyst for biodiesel production was prepared from zirconium sulfate (Zr(SO4)2) and sulfonated poly(vinyl alcohol) (SPVA). The structure and properties of the hybrid catalytic membrane were investigated by means of Fourier transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), thermogravimetry (TG), transmi...
http://www.polymer.cnt//ss/hebenqiao/publicationsshow_4847.html |
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Preparation and characterization of PSSA/PVA catalytic membrane for biodiesel production
Poly(styrene sulfonic acid) (PSSA)/Poly(vinyl alcohol) (PVA) blend membranes prepared by the solution casting were employed as heterogeneous acid catalysts for biodiesel production from acidic oil obtained from waste cooking oil (WCO). The membranes were annealed at different temperature in order to enhance their stability. The structure and properties of the membranes were investigated by means o...
http://www.polymer.cnt//ss/hebenqiao/publicationsshow_4846.html |
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Cation Ion-Exchange Resin/Polyethersulfone Hybrid Catalytic Membrane for Biodiesel Production
A novel hybrid catalytic membrane consisted of cation ion-exchange resin particles and polyether-sulfone was prepared by immersion phase inversion and used as a heterogeneous catalyst for the esteri?cation of acidi?ed oil with methanol. The hybrid catalytic membranes with different porosities were obtained by control of N-Methyl-2-Pyrolidone (NMP) concentration in NMP/water coagulation bath. Accor...
http://www.polymer.cnt//ss/hebenqiao/publicationsshow_4842.html |
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Cellulose whiskers extracted from mulberry: A novel biomass production.
Rongji Li, Jianming Fei, Yurong Cai, Yufeng Li, Jianqin Feng, Juming Yao. Cellulose whiskers extracted from mulberry: A novel biomass production. Carbohydrate Polymers, Volume 76, Issue 1, 2 March 2009, Pages 94-99
http://www.polymer.cnt//ss/yaojuming/publicationsshow_859.html |
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From celluloses nanospheres, Nanorod to nanofibers: Various Aspect Ratios Induced Different Nucleation/Reinforcing Effect on Polyactic acid for Robust-barrier Food Packaging
The traditional approach toward improving crystallization rate, mechanical and barrier property of poly(lactic acid) (PLA) is the incorporation of nanocelluloses (NCs). Unfortunately, little study was focused on the influence of differences in NC morphology and dimension on the PLA property enhancement. Here we unveil the preparation of cellulose nanospheres (CNS), rod-like cellulose nanocrystals ...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_12357.html |
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EXTRUSION OF BIG-SIZE HOLEY PREFORM FOR MASS-PRODUCTION OF PHOTONIC CRYSTAL FIBER
关键字：EXTRUSION,BIG,SIZE,HOLEY,PREFORM,FOR,MASS,PRODUCTION,PHOTONIC,CRYSTAL,FIBER,
Polymer photonic crystal fiber (PPCF), also named Microstructured polymer optical fiber (MPOF), is a new category of POF. M. A. Eijkelenborg and co-workers havereported a method of fabricating MPOF preforms that is known as drill-...
http://www.polymer.cn/research/dis_info5732 |
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