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   sci.chem      Chemistry and related sciences      55,615 messages   

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   Message 54,991 of 55,615   
   Treon Verdery to All   
   Laser zapping ablation of aluminum parti   
   14 Aug 22 01:54:55   
   
   From: treon3verdery@gmail.com   
      
    The same technology could be used to make catalyst and catalyst metal shapes   
   11-20 times smaller. Making them 11-20 times as active per mg or gram. At a   
   vehicle catalytic converter something like a screen door screen grown upward   
   100-1000-10k nanometers    
   tall could use the same amount of catalytic metal as a flat plating on   
   substrate but because of its height presents twice as much surface area to the   
   air/exhaust as a monolayer plating. 1/2 as much metal catalyst can be used,   
   halving the expense of a    
   vehicle catalytic converter. Lasers could drill holes in the high fin   
   structures, this increases gas movement and mixing between the high vertical   
   catalyst fins. Tall vented fin catalysts rather than flat coating catalysts   
   makes vehicles $11-449 cheaper    
   each.   
      
   Strained and shocked semiconductors have different electron quantum level   
   effects. That suggests strained and shocked catalysts like fuel producing   
   zeolites would produce different reaction yield ratios, and different   
   catalytic abilities and velocities,    
   some of which could be beneficial, efficient, and lucrative after screening a   
   library. Sheet laser/THz/microwave scanning, encapsulation and em compression,   
   extreme gigapascals of hydraulic pressure, volumetric raster scanned   
   Sonoluminescence, and    
   supercheap use of immersion of zeolites in a tank of water with a shaped   
   charge of cheap nitroexplosive sending a ultra high pressure wave through the   
   watertank are all possible zeolite bulk treatments. I have no idea what the   
   efficiency gains might be,    
   but if strain and shock cause 40-60% greater combined zeolite atom tubule   
   roughness, wrinkling, splintering, and cracks between tubes that stuff can   
   flow through, then catalytic effects could increase 40-60%. That would make   
   petrochemicals and plastics    
   even more affordable because the tons processed per 24 hours goes up 40-60%   
   for a fixed reactor cost. Energy efficiency goes up and warming process energy   
   per gallon of fuel or plastic/polymer product produced decreases 40-60%. Also,   
   more than one    
   different shock/strain treatment can be used to build up a supercatalyst. As   
   one possibility among many, picosecond lasers striking a metal foil produce   
   radiation particles, and lasers ablating FeNi invar alloy can remove .01   
   nanometers per pulse, that    
   is about 1 atom thickness per pulse. Lasers likely do not shine through   
   zeolites, but terahz radiation and microwaves do. Adapt the pulse chirp energy   
   compression of visible laser light that makes super fast femtosecond high   
   joule pulses to THz and    
   microwave emitters. Then shock zeolites and other opaque catalysts with them.   
   Something like a scanning slice of light can traverse and shock/strain/modify   
   the entire zeolite chunk.    
      
   I do not know if it would be cheap enough to make but a zeolite aerogel could   
   have 98-99 times more surface area, while conserving the zeolite   
   characteristic of having many minute interconnected hollow tubules. centrifuge   
   or colloid gradient the    
   diversely sized powders and nanopowders of zeolite fragment in aerogel blend   
   as it coalesces, then dip it in a color changing, or spectroscopy discernable   
   reaction chemicals you want to promote, then just that area of the technology   
   development zeolite    
   aerogel that is most catalytic stands out, from biggest color change or   
   strongest raster scanned spectroscopy product concentration. Then production   
   aerogel zeolites can be made pure (but a blend) from that size of zeolite   
   powder, at an optimal aerogel    
   percentage on purpose. Also laser hole drillers making 756 holes   
   simultaneously in less than some amount of time are published. Using grating   
   based microbeam arrays like that to drill fluid transport to the aerogel   
   surface is likely to muliply speed of    
   fluid flow through and catalysis many times. Images of petroleum zeolite   
   catalysts at alibaba look like extruded short noodles without a hole. Simply   
   extruding petroleum zeolite catalysts to have a macaroni hole could produce   
   lots more fluid flow. And,    
   lasers could be used to put a grid of perforations through the macaroni like   
   shape. Extrusion of synthetic zeolite catalysts suggests that zigzag perimeter   
   medallion or hollow tube asterisks are as easy to make as the nonhollow noodle   
   shape i saw on    
   alibaba. Optimistically its possible to triple the surface area per gram with   
   just better noodle extrusion. 8-11% faster preferred reaction product   
   production velocity could occur.   
      
      
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