http://arxiv.org/ftp/arxiv/papers/0903/0903.5359.pdf
*A New Method of Obtaining High Enrichment of Metallic Single-* *Walled Carbon Nanotubes* * * http://nopr.niscair.res.in/bitstream/123456789/13361/1/IJCA%2051A(01-02)%2032-46.pdf Selective Synthesis of SWNT On Sat, Jun 23, 2012 at 11:17 AM, Jojo Jaro <jth...@hotmail.com> wrote: > ** > 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 <janap...@gmail.com> > *To:* vortex-l@eskimo.com > *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 <jth...@hotmail.com> 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 >> >> >> >> >> >> > >
