Sanyaya kayan lantarki masu ƙarfi a cikin sabbin wayoyin komai da ruwanka na iya zama babban ƙalubale. Masu bincike a Jami'ar Kimiyya da Fasaha ta Sarki Abdullah sun ƙirƙiro wata hanya mai sauri da inganci don ƙirƙirar kayan carbon waɗanda suka dace da watsa zafi daga na'urorin lantarki. Wannan kayan mai amfani da yawa zai iya samun wasu aikace-aikace, daga na'urori masu auna iskar gas zuwa na'urorin hasken rana.
Na'urorin lantarki da yawa suna amfani da fina-finan graphite don gudanar da kuma kawar da zafin da kayan lantarki ke samarwa. Duk da cewa graphite wani nau'in carbon ne na halitta, sarrafa zafi a cikin kayan lantarki aiki ne mai wahala kuma galibi ya dogara ne akan amfani da fina-finan graphite masu kauri mai yawa. "Duk da haka, hanyar yin waɗannan fina-finan graphite ta amfani da polymers a matsayin kayan aiki abu ne mai rikitarwa kuma mai ɗaukar makamashi," in ji Gitanjali Deokar, wani ƙwararren masani a dakin gwaje-gwajen Pedro Costa wanda ya jagoranci aikin. Ana yin fina-finan ta hanyar matakai da yawa wanda ke buƙatar yanayin zafi har zuwa digiri 3,200 na Celsius kuma ba zai iya samar da fina-finai masu sirara fiye da microns kaɗan ba.
Deokar, Costa da abokan aikinsu sun ƙirƙiro wata hanya mai sauri da inganci don yin zanen graphite mai kauri kusan nanomita 100. Ƙungiyar ta yi amfani da wata dabara da ake kira chemical tururi deposition (CVD) don haɓaka fina-finan graphite masu kauri nanometer (NGFs) akan foil ɗin nickel, inda nickel ke haɓaka canza methane mai zafi zuwa graphite a saman sa. "Mun cimma NGF a cikin matakin girma na CVD na mintuna 5 kacal a zafin jiki na digiri 900 na Celsius," in ji Deokar.
NGF na iya girma zuwa zanen gado har zuwa 55 cm2 a faɗin kuma ya girma a ɓangarorin biyu na foil ɗin. Ana iya cire shi a mayar da shi zuwa wasu saman ba tare da buƙatar wani Layer na tallafi na polymer ba, wanda shine abin da ake buƙata a duk lokacin aiki da fina-finan graphene mai layi ɗaya.
Tare da haɗin gwiwa da ƙwararren masani kan na'urar gano ƙwayoyin cuta ta electron, Alessandro Genovese, ƙungiyar ta sami hotunan na'urar gano ƙwayoyin cuta ta transmission electron microscopy (TEM) na sassan NGF akan nickel. "Lura da hulɗar da ke tsakanin fina-finan graphite da na'urar gano ƙwayoyin cuta ta nickel wani babban ci gaba ne da ba a taɓa ganin irinsa ba, kuma zai samar da ƙarin haske game da yadda waɗannan fina-finan ke ci gaba," in ji Costa.
Kauri na NGF ya faɗi tsakanin fina-finan graphite masu kauri da na micron da ake samu a kasuwa da kuma graphene mai layi ɗaya. "NGF tana ƙara wa zanen graphene da na graphite na masana'antu, tana ƙara wa tarin fina-finan carbon masu layi ɗaya," in ji Costa. Misali, saboda sassaucin sa, ana iya amfani da NGF don sarrafa zafi a cikin wayoyin hannu masu sassauƙa waɗanda yanzu suka fara bayyana a kasuwa. "Idan aka kwatanta da fina-finan graphene, haɗakar NGF zai zama mai rahusa kuma ya fi karko," in ji shi.
Duk da haka, NGF tana da amfani da yawa fiye da zubar da zafi. Wani abin sha'awa da aka haskaka a cikin hotunan TEM shine cewa wasu sassan NGF 'yan yadudduka ne kawai na kauri na carbon. "Abin mamaki, kasancewar layuka da yawa na yankunan graphene yana tabbatar da isasshen matakin haske mai bayyane a cikin fim ɗin," in ji Deoka. Ƙungiyar binciken ta yi hasashen cewa za a iya amfani da NGF mai watsawa da haske a matsayin wani ɓangare na ƙwayoyin hasken rana ko kuma a matsayin kayan ji don gano iskar nitrogen dioxide. "Muna shirin haɗa NGF cikin na'urori don ya iya aiki azaman abu mai aiki da yawa," in ji Costa.
Ƙarin bayani: Gitanjali Deokar et al., Ci gaban sauri na fina-finan graphite masu kauri nanometer akan foil ɗin nickel mai sikelin wafer da kuma nazarin tsarin su, Nanotechnology (2020). DOI: 10.1088/1361-6528/aba712
Idan kun ci karo da kuskuren rubutu, ko kuma ba daidai ba ne, ko kuma kuna son gabatar da buƙatar gyara abubuwan da ke cikin wannan shafin, da fatan za a yi amfani da wannan fom ɗin. Don tambayoyi na gabaɗaya, da fatan za a yi amfani da fom ɗin tuntuɓar mu. Don ra'ayoyin gabaɗaya, yi amfani da sashin sharhin jama'a da ke ƙasa (bi umarnin).
Ra'ayinka yana da mahimmanci a gare mu. Duk da haka, saboda yawan saƙonnin da ake aika mana, ba za mu iya tabbatar da cewa za mu amsa muku ta hanyar da ta dace ba.
Adireshin imel ɗinka ana amfani da shi ne kawai don gaya wa masu karɓa waɗanda suka aiko da imel ɗin. Ba za a yi amfani da adireshinka ko adireshin mai karɓa don wani dalili ba. Bayanan da ka shigar za su bayyana a cikin imel ɗinka kuma Phys.org ba za ta adana su ta kowace hanya ba.
Karɓi sabuntawa na mako-mako da/ko na yau da kullun a cikin akwatin saƙon ku. Kuna iya cire rajista a kowane lokaci kuma ba za mu taɓa raba bayanan ku da wasu kamfanoni ba.
Muna sa abubuwan da muke wallafawa su zama masu sauƙin samu ga kowa. Yi la'akari da tallafawa manufar Kimiyyar X tare da asusun kuɗi mai daraja.
Lokacin Saƙo: Satumba-05-2024