I read these patents and most of it is beyond my ability and skill. And they're mostly about how to produce SWNTs, which no distinction between the Metallic SWNTs from the Semiconducting SWNT varieties.
I've found many papers discussing production of SWNTs as opposed to MWNTs, but I found only 2 papers discussing the Selective Production of "Metallic" SWNTs. They're both from the same author and it was a very short paper and he does not really discuss how to do it in detail. Do you know of any papers discussing the selective production of Metallic SWNTs? I think this is the key in increasing the power density of LENR. With respect to "the smaller SWNTs the better". In your understanding, why would a smaller (diameter?) SWNT be better than one which is slightly bigger. Any quantum mechanical reason that you can explain? Can you direct me to any papers discussing Charge accumulation in SWNTs? Jojo ----- Original Message ----- From: Axil Axil To: [email protected] Sent: Saturday, June 23, 2012 8:49 AM Subject: Re: [Vo]:Coherent Quantum Wires and Charge Accumulation I found about 1000 patents using the compound keywords…… Metallic AND SWNT On Google patents, use the “Download PDF” button to see the complete patent including the diagrams. This looked good to me on a quick scan of the material. http://www.google.com/patents/US8163263 I found 134 patents using the compound keywords…… Armchair AND SWNT This looked good to me on a quick scan of the material. http://www.google.com/patents?id=pyz5AQAAEBAJ&printsec=frontcover&dq=8,038,795&hl=en&sa=X&ei=Ig7lT7jdCoHn0QG-mInWCQ&ved=0CDcQ6AEwAA Also http://www.google.com/patents/US7807127 Just thinking out loud here, but do you think the size of the Fe or Ni nanopowders used as catalyst seed material might influence the creation of Armchair SWNTs. I think this is true and the smaller the particle, the more active the SWNT formed from it will be. I will get you more as time permits. On Fri, Jun 22, 2012 at 3:59 PM, Jojo Jaro <[email protected]> wrote: Axil, I found a page discussing the properties of SWNTs and it mentions that "Metallic" SWNTs exhibit "Long Coherence Lengths". http://ipn2.epfl.ch/CHBU/NTelectronic1.htm From the page: "Numerous experiments on SWNTs and MWNTs allowed to gain additional informations. At low temperatures, SWNTs behave as coherent quantum wires where the conduction occurs through discrete electron states over large distances. Transport measurements revealed that metallic SWNTs show extremely long coherence lengths and that the presence of defects or disorder has little influence on electron conduction. This is not the case for semi-conducting SWNTs, which show far shorter coherence lengths. " Is this the same concept you were referring to in your post about charge accumulation in 1D structures. If so, it appears that SWNTs are better than MWNTs; specifically Metallic SWNTs appears to be the right allotropes that would enchance Charge accumulation. And since, arc discharge generators normally produce a mixture of Metallic and Semiconducting SWNTs, it would explain the "hit and miss" results we been getting with Cold Fusion. If this is correct, tuning the reactor to bias its production towards Metallic SWNTs should increase power production in LENR. Any ideas how to do this? I understand that doping the anode with Fe or Ni powders increases the production of SWNTs, I can tune my reactor towards SWNT production, but it seems, nobody knows how to tune production of the Metallic SWNTs variety over the Semiconducting Variety. That is, Armchair nanotubes as opposed to ZigZag or other chirals. Just thinking out loud here, but do you think the size of the Fe or Ni nanopowders used as catalyst seed material might influence the creation of Armchair SWNTs. Can you direct me to papers about SWNT charge accumulation. Jojo
