We report on the synthesis of air-stable aluminum nanoparticles (Al NPs) capped with 1,2-epoxy-9-decene. Long-chain epoxides have proven to be effective capping agents for Al NPs as the epoxide ring is highly susceptible to ring-opening polymerization, leading to the formation of putative polyether loops on the nascent Al NP surface. However, these materials are observed to degrade within several hours to days following exposure to ambient air. By inducing polymerization of the additional terminal alkene functionality on the epoxide, we have produced Al NPs that exhibit both a shelf life of ~6 weeks and a high active Al content. (...)
Acknowledgments
We graciously acknowledge the US Air Force Nanoenergetics Program for funding.
Synthesis of aluminum nanoparticles capped with copolymerizable epoxides | SpringerLink
https://link.springer.com/article/10.1007/s11051-013-1729-8

STARSIGN: a co tim chces dokázat? do hlavy ti fakt nevidim.

STARSIGN: z kominu mi jde kour, je v nem vlhkost. je to teda zalevani rozprasovacem?

pise sa tam napr.: Tyagi et al. [9] found experimentally that with the addition of 0.1% and 0.5% (by volume) of Al and Al2O3 NPs, the hot plate ignition probability of nanoparticle laden diesel fuel was significantly higher than that of pure diesel fuel.
takze pridava sa aj oxid aj cisty hlinik (do dieselu, ale moze sa aj inde)

STARSIGN: realne ten link sice nikam nevedie, ale to nevadi
aspon toto som nasiel
http://procom.kaist.ac.kr/Download/IJP/134.pdf

MATT: tak to je parada, ze ti to z toho prijde
ale realne je na konci clanku link na tento clanok
nebud preto smutny a dychaj zhlboka
http://www.chem.utah.edu/faculty/anderson/alumpending.html

cekal bych neco jako 4 Al+ 3 O2 -> 2 Al2O3

MATT: já taky na chemii nikdy nebyl... ale jak prosímvás vypadá rovnice hoření hliníku???

GORG: oni porovnavaj pomery. o kompletnim shoreni to tolik nevypovida, ale prislo mi, ze tu zpochybnujete, ze ten hlinik vubec shori. a oni ho tam pridavaj protoze ma pri horeni lepsi pomer energie na objem. pred shorenim ty castice jeste napomuzou lepsimu odpareni tech uhlovovodiku.

MATT: no tak to je jak jsem níže ne? :) Nebo v čem to píšu jinak, když už si tu rejpame? Nicméně co to znamená vzhledem k tomu kompltnimu shoření ?
Imho teda, pokud to není naš obor jako profese, budou to všechno z definice amatérské dohady. I když to možná děláš, nevím? Já na chemii nikdy nebyl

GORG: porovnavaji pomer energie na objem, resp. hmotnost vzhdem k uhlovodikum. ale je to jen amaterská dedukce :D

MATT: nebo to lomeno je pomer vuci uhlovodikum? ale klidne to vlastnimi slovy vysvetli, co to v tom uryvku presne resi :)
ja teda o boru a na bor bohatych pudach se priznam, ze nic nevim, ani proc by mely byt vyraznej lepsi nez uhlovodiky na zaklade objemu a hmotnosti. nejak mi tam ty implikace unikaj :-) predpokladam, ze volume je opravdu objem a mass hmotnost? nejak jsem z te absence vysvetleni zmaten

GORG: oooooouuuuukejjjj :D

MATT: Ja tomu nerozumim. Je tam neco o tom, ze (hlinik?) ubyl na hmotnosti a nabyl na objemu.

GORG: a jak to teda chapou zdejsi odbornici?

Note that aluminum has significantly increased energy/volume, but lower energy/mass compared to hydrocarbons. Boron and boron-rich solids are significantly better than hydrocarbons on both volume and mass bases.
jak jinak bys tohle vysvetlil, nez ze ty latky shori?

MATT: Tohle mi vsechno prijde jen jako amaterske dedukce. Nekde by melo byt zjevne uvedene, ze se ty nanocastice kompletne spali

GORG: tak treba z tohodle One major problem with combustion of both boron and aluminum (most metals, in fact) is that the metal surfaces are passivated by a native oxide layer a few nanometers thick. This oxide greatly retards ignition of the metal. In addition, if the particle size is reduced into the nanoscale, the oxide (which is just dead weight) becomes a larger and larger fraction of the total mass, with corresponding reduction in energy density. Particles can easily be generated without an oxide coating, however, if they are not protected somehow, they ignite (sometimes explosively) upon contact with air.

z to tvyho jsem pochopil, ze by to moh nekdo vdechnout treba pri manipulaci.

btw: jen bych jeste podotknul, ze spousta studii vznika jenom proto, ze to treba nekdo umi zmerit (a aby byla prace). s realnou situaci to nemusi mit nic spolecnyho.

MATT: Nevim teda presne z ceho. Pak mi neni jasne, proc by se v te mnou linkovane studii zabyvali vdechnutim v souvislosti s leteckym palivem? Z toho se zas zdalo, ze je to u toho relevantni, i kdyz primo explicitne jsem tam takhle receny nevidel.

GORG: ale to co píšeš platí téměř o jakejchkoli cytostatikach.

btw: z tohodle mi prijde, ze ty nanopartikly pri spalovani shori taky..
Nanoparticle Fuel Additives - Department of Chemistry - The University of Utah
https://chem.utah.edu/directory/anderson/research-group/nanoparticles.php