By a News Reporter-Staff News Editor at Science Letter -- Current study results on Applied Catalysis Research have been published. According to news originating from Karlsruhe, Germany, by NewsRx correspondents, research stated, "Inkjet printing technology was applied for the precise deposition of alumina nanoparticles in microchannels as a catalyst support layer. Several alumina nanoparticle containing inks were prepared and tested for inkjet printability."
Our news journalists obtained a quote from the research from the Karlsruhe Institute of Technology, "It could be shown that additives such as ethylene glycol and polyethylene glycol are needed for aqueous inks up to a concentration of 50 wt.% for continuous drop generation. The printing was conducted both in semicircular and rectangular microchannels. The coating thickness was controlled by repetitive printing of each channel, and the generated layers were uniform in thickness throughout the microchannel foil. The printed alumina layers were impregnated with rhodium nitrate after calcination. A high metal loading of 15 wt.% was applied to enable a high reaction rate per coated area despite the low thickness of the layer, and the catalytic activity was demonstrated for methane steam reforming (MSR)."
According to the news editors, the research concluded: "The prepared catalyst layers were highly active, and conversions exceeding 98% were obtained at 973 K and a W/F (catalyst weight/CH4 feed rate) ratio of 19.7 (kgcat s)/mol(CH4)."
For more information on this research see: Inkjet printing of porous nanoparticle-based catalyst layers in microchannel reactors. Applied Catalysis A-General, 2013;467():69-75. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Applied Catalysis Research).
The news correspondents report that additional information may be obtained from S. Lee, Karlsruhe Inst Technol, Inst Micro Proc Engn, D-76021 Karlsruhe, Germany. Additional authors for this research include T. Boeltken, A.K. Mogalicherla, U. Gerhards, P. Pfeifer and R. Dittmeyer.
Keywords for this news article include: Europe, Germany, Karlsruhe, Applied Catalysis Research
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