Piantelli took the Ni rod out of his experiment after it had produced excess heat for a while and placed the rod in a cloud chamber. There he saw high energy protons being emitted. This is in his published works.
What published works?
Holmlid et al is planning to miniaturize his experiment so that it can fit inside a main line science CERN like particle detector by mid summer.
Except that Holmlid has said it himself (and I explained multiple-times, why it is so):
Yet he proposed that what is commonly called LENR could be a result of ultra-dense hydrogen production and spontaneous nuclear reactions caused by it. This seems strictly a matter of definitions. He does not believe that what happens is "cold fusion".
[...] then how you break water to recover O2 in 2 steps ?
This would stray quite a bit from the experiments suggested in the opening post in the patent by A.J. Groszek. but assuming that the Mills-hypothesis of the last few posts is true then one could simply include hydrogen gas with small amounts of water in a small heated chamber and apply electric discharges. As the H2 and H2O start dissociating and recombining, an energy excess would in turn start appearing.
Groszek also suggests in the patent linked in the opening post that traces amounts of water (0.01 μmol to 100 μmol per gram of metal) appear to increase the energy gain. Would it be plausible if some water molecules get thermally dissociated by the heat of the reaction?
In this specific case there is also the benefit of published peer reviewed literature which is probably more clearly written than the patent. The last papers written by Groszek et al. are related to the patent you linked in the opening post.
Abnormally high heat generation by transition metals interacting with hydrogen and oxygen molecules (2012)
Effect of oxygen on the production of abnormally high heats of interaction with hydrogen chemisorbed on gold (2011)
Heats of interaction of hydrogen with gold and platinum powders and its effect on the subsequent adsorptions of oxygen and noble gases (2010)
Oscillatory Rates of Heat Evolution during Sorption of Hydrogen in Palladium (2008)
Heats of displacement of hydrogen from palladium by noble gases (2005)
This would also give at least some credence to the various closed cycle overunity water cell/HHO claims of the past decade(s). If the reaction is gainful and reversible it could potentially run only with the electrolysis of water and the recombination of H2-O2 on a suitable catalyst. I think Randell Mills has a patent application and a couple published papers on a similar cell.
This may help:
"Aleksander Jerzy Groszek: a pioneer in adsorption calorimetry"
http://link.springer.com/article/10.1007%2Fs10450-014-9642-8 (open access)Quote
[...] Aleksander Jerzy Groszek died in Zakopane, Poland on 30th December 2013 aged 86. He is survived by his six children and his widow, Hanna.
It's possible for this to be replicated Barty, though I have my hands pretty full at the minute. The demands on equipment and temperatures and pressures are not unreasonable.
Erwin Lalik, a microcalorimetry expert who has written a few papers with AJ Groszek, did similar experiments using lab-grade synthetic air (80% N2, 20% O2) on alumina-supported, hydrogen saturated Pd catalysts.
It is possible that the experiment could be approximated with your standard "Model T tubes" by injecting standard air on H-saturated metals. The catch is that the H2-O2 recombination has to occur with µmol-amounts of gas in order to yield an (apparent?) excess.
I think I recall discussing this with you a few months ago here on LENR-Forum.
I am hoping to establish contact with a co-worker of the recently deceased inventor, and will report on that if more information results.
Now that I recall, luckily one of the co-workers has written a few posts on LENR-Forum in 2015 and still logs in occasionally:
Certainly AJ Groszek. The others I'm not so sure. Have a look, tell me if you think it is.
I have not read your pdf yet, but looking at the subject and the authors, is it related with this:
Oscillatory Behavior and Anomalous Heat Evolution in Recombination of H2 and O2 on Pd-based Catalysts
Erwin Lalik*†, Alicja Drelinkiewicz†, Robert Kosydar†, Tomasz Szumełda†, Elżbieta Bielańska†, Dan Groszek‡, Angelo Iannetelli‡, and Martin Groszek‡
And this person: https://www.researchgate.net/r…her/2000695766_AJ_Groszek
Worth pointing out David that there are hundreds of scientific papers which accept that very high gas pressures inside lattice defects are 'normal'. It is counter-intuitive that this ultra-high pressure environment can be created when the ambient pressure is so low, but it also shows us that at the atomic/molecular scale materials do no always behave as we expect.
I previously took this for granted, but do you have some exemplary references for the section highlighted in bold in the quote above?
If we linearly extend that temperature/pressure line up to the SunCell temperature of 7000K, not much pressure will produce the metalized hydrogen.
I am not sure that the transition line can be extended that way but since it is already known (or at least predicted) that the electronic environment can decrease the pressure required for metallic hydrogen formation  if both things could be combined perhaps one would find out that it could have already (inadvertently) been synthesized during totally different experiments where its formation was not planned nor expected (read: for example in many LENR experiments).
 The paper you often referred about where hydrogen in lithium hydride can be metallized at 1/4 (not "decreased by 400%" as you often stated) of the pressure normally required: http://www.pnas.org/content/106/42/17640.full ("A little bit of lithium does a lot for hydrogen" by Zurek et al.)
If a production and separation process is developed for metallic hydrogen, the rocket fuel will explode like the SpaceX rocket.
This may not be totally off-topic as metallic hydrogen is predicted to be a novel room temperature quantum fluid (a superconducting superfluid- https://arxiv.org/abs/cond-mat/0410408) which may also turn out useful for EM-Drive -type applications, but in the Arxiv paper referred in the news linked by Alan Smith (https://arxiv.org/abs/1610.01634) I found this interesting diagram. It seems that temperature decreases the pressure requirement for metallic hydrogen formation:
This was observed by the same authors in a paper written in 2015:
From the .cn link in my previous post:Quote
The implosive collapse of the bubble generates local hot spots due to the adiabatic compression or shock wave in the gas phase of the collapsing bubble. These hot spots have a transient temperature of above 5000 K, pressure of above 1800 atm, and cooling rates in excess of 10^8 K/s.
If cavitation bubbles occur and if these bubbles implode, the conditions achieved could be sufficient to break down hexane, small amounts at least.
I forgot that while a low carbon coverage may be beneficial for catalytic activity, after long term exposure the carbon deposits formed during sonication in hexane may start becoming excessive and clog the surface of the particles preventing hydrogen adsorption or in other words deactivating them. This phenomenon is also known as coking in the petrochemical industry. So it is not clear if this would be a good way for potentially observing excess heat as I have previously written.
It may turn out to be necessary to use other liquids (e.g. water) after an initial treatment, as suggested in the Ahern patent application that I linked in another post, which would "complicate things up" in the sense that it would add other unwanted variables which are not within the scope of the experiments you planned.
Anyway, it seems that the morphological changes caused by ultrasonic treatment of Ni-based catalysts may also increase their coking resistance.
Therefore, given the very dynamic and locally extreme conditions achieved during the sonication process I think that potentially there is not much preventing excess heat from slowly emerging over time during prolonged treating of these Ni particles in hexane. A further reason to closely monitor the temperature (and flowrate) of the coolant, and to start thinking of a suitable inert load.
Again on these experiments by Alan Smith: if hexane is being decomposed as a result the ultrasonic treatment (as shown by the deposition of small amounts of carbon on the surface of the Ni particles in that other study) and if the particles have catalytic properties, could not further catalytic decomposition of the compounds formed also include hydrogen? Then the treated particles may also get hydrogen-loaded over time to some extent.
That was a mistake on my part .... I meant hydrogenated.
The aim is observing if the pressure waves and the cavitation alone induced by the ultrasonic transducer in the n-hexane may be able to induce some effects (translating in practice in excess heat and perhaps other anomalies) in the lattice of the previously treated and hydrogen-loaded nickel particles.
Ideally there would be a suspension of nickel nanoparticles, the dielectric medium would be water and there would be electrodes inducing electric discharges into said medium... but this would require complicating things up. The basis for this is this patent, which as far as I know is the only one Rossi ever recommended on the JONP: http://www.google.com/patents/US20110233061
But there also are reports of nuclear emissions (neutrons) from cavitation of metal salt solutions in water, like for example: http://link.springer.com/chapt…07%2F978-3-319-21611-9_22
I suspect that in addition to nanoparticles the surface highly porous, hydrogen-loaded metal microparticles may also be a suitable environment for this type of experiment.
Do you have the capability of monitoring the temperature of the hexane slurry or of the cooling medium while the transducer is active?
This will probably turn out to be a null experiment but I am wondering if there is any difference if instead of ordinary nickel powder
hydratedhydrogenated nickel powder is used in the same process.
hydratedhydrogenated powder may be powder that was previously treated with ultrasounds in hexane in the same setup.
This test should not require complicating things up as MrSelfSustain complained previously.
It may be that the inclusion of transition metals within a zeolite framework can do this - not so much a coating process, as one dependent on the percolation of metal particles into voids in the Zeolite.
I recall that some (Ahern, Swartz, and I think some Japanese LENR reseachers) have used a material formed of PdNi alloy nanoislands in a ZrO2 oxide matrix with apparently positive results. However the process was rather complicated and required expensive equipment. Anyway, perhaps something along the lines of what I previously described also happened there upon hydrogen loading?