Saynisyahano ka tirsan Machadka Teknolojiyadda ee Tokyo ayaa muujiyay in walxaha nanoscale ee nanoscale ay ka awood badan yihiin kuwa ku jira nanoscale.Qaybahaan subnanoparticles sidoo kale waxay kicin karaan falcelinta oksaydhka ee hydrocarbons caraf udgoon si aad uga waxtar badan marka loo eego kuwa hadda lagu isticmaalo warshadaha.Daraasadani waxay waddada u xaaraysaa si ka wanaagsan oo hufan oo looga faa'iidaysan karo karbonada udugga, kuwaas oo ah agab muhiim u ah cilmi-baadhista iyo warshadaha labadaba.

oksaydhka xulashada ee hydrocarbons ayaa muhiim u ah falcelin kiimikaad badan iyo geeddi-socod warshadeed, sidaas oo kale, saynisyahannadu waxay isha ku hayeen habab hufan oo ay ku fuliyaan oksaydhkan.Nanoparticles Copper Oxide (CunOx) ayaa loo helay inay faa'iido u tahay ka-hortagga farsamaynta hydrocarbons, laakiin raadinta xitaa xeryahooda waxtarka leh ayaa sii socday.

Waqtiyadii la soo dhaafay, saynisyahannadu waxay adeegsadeen kicinta birta ku salaysan ee sharafta leh oo ka kooban qaybo heer hoose-nano ah.Heerkan, qaybuhu waxay cabbiraan wax ka yar nanometer-ka iyo marka la dhigo substrates ku habboon, waxay bixin karaan xitaa meelo sare oo ka sarreeya kuwa nanoparticle-ka si kor loogu qaado falcelinta.

Isbeddelkan, koox saynisyahano ah oo ay ku jiraan Prof. Kimihisa Yamamoto iyo Dr. Makoto Tanabe oo ka socda Machadka Teknolojiyadda Tokyo (Tokyo Tech) ayaa baadhay fal-celinta kiimikaad ee CunOx subnanoparticles (SNPs) si ay u qiimeeyaan waxqabadkooda oksaydhka hydrocarbons.CunOx SNPs oo ah saddex cabbir oo gaar ah (oo leh 12, 28, iyo 60 atamka naxaasta ah) ayaa lagu soo saaray qaab-dhismeedka geed-u eg ee loo yaqaan dendrimers.Lagu taageeray substrate zirconia, waxaa lagu dabaqay oksaydhka aerobic ee xarun dabiici ah oo leh giraan benzene ah oo udgoon.

X-ray photoelectron spectroscopy (XPS) iyo infrared spectroscopy (IR) ayaa loo isticmaalay in lagu falanqeeyo qaab dhismeedka SNP-yada la isku daray, natiijadiina waxaa taageeray xisaabinta aragtida shaqada (DFT).

Falanqaynta XPS iyo xisaabinta DFT ayaa daaha ka qaaday kororka ionicity ee curaarta copper-oxygen (Cu-O) maadaama cabbirka SNP uu hoos u dhacay.Kala-soocidda curaarta ayaa ka weyn tii lagu arkay cu-O bonds, iyo polarization-ka weyn ayaa sabab u ahaa kor u qaadista firfircoonida firfircoonida ee CunOx SNPs.

Tanabe iyo xubnaha kooxdu waxay arkeen in CunOx SNPs ay dardar galiyeen oksaydhka kooxaha CH3 ee ku xidhan giraanta udgoonka, taas oo horseedaysa samaynta alaabada.Marka aan la isticmaalin kicinta CunOx SNP, wax alaab ah lama samayn.Kataliyaha leh CunOx SNPs ugu yar, Cu12Ox, wuxuu lahaa waxqabadka firfircoonida ugu fiican wuxuuna cadeeyay inuu yahay kan ugu cimri dheer.

Sida Tanabe u sharraxay, "kor u qaadista ionity ee curaarta Cu-O oo hoos u dhac ku yimi cabbirka CunOx SNPs waxay awood u siinaysaa dhaqdhaqaaqooda firfircoonida wanaagsan ee oksaydhka hydrocarbon."

Cilmi-baaristoodu waxay taageertaa doodda ah inay jirto suurtogalnimo weyn oo loo isticmaalo SNP-yada copper oxide sida kicinta codsiyada warshadaha."Waxqabadka catalytic iyo habka cabbirka-xakamaynta ee isku-dhafan ee CunOx SNPs waxay ka fiicnaan lahayd kuwa birta birta ah ee sharafta leh, kuwaas oo inta badan loo isticmaalo warshadaha hadda," Yamamoto ayaa yidhi, isagoo tilmaamaya waxa CunOx SNPs ay ku gaari karaan mustaqbalka.

Qalabka uu bixiyo Machadka Teknolojiyadda ee Tokyo.Xusuusin: Waxa laga yaabaa in loo tafatiro qaabka iyo dhererka.

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