Zane-zanen zane na taimaka wa sabbin wayowin komai da ruwan su zama sanyi

Sanyaya na'urorin lantarki masu ƙarfi a cikin sabbin wayoyin hannu na iya zama babban ƙalubale. Masu bincike a Jami'ar Kimiyya da Fasaha ta Sarki Abdullah sun samar da hanya mai sauri da inganci don ƙirƙirar kayan carbon da ke da kyau don watsar da zafi daga na'urorin lantarki. Wannan madaidaicin abu zai iya samun wasu aikace-aikace, daga na'urori masu auna iskar gas zuwa na'urorin hasken rana.
Yawancin na'urorin lantarki suna amfani da fina-finai na graphite don gudanarwa da watsar da zafin da kayan lantarki ke haifarwa. Ko da yake graphite wani nau'in carbon ne na halitta, sarrafa zafin jiki a cikin kayan lantarki aikace-aikace ne mai buƙata kuma galibi ya dogara da yin amfani da fina-finan graphite masu inganci masu inganci. "Duk da haka, hanyar yin waɗannan fina-finan graphite ta amfani da polymers a matsayin albarkatun ƙasa yana da rikitarwa kuma yana da ƙarfin kuzari," in ji Gitanjali Deokar, wani postdoc a dakin binciken Pedro Costa wanda ya jagoranci aikin. Ana yin fina-finan ta hanyar matakai da yawa waɗanda ke buƙatar yanayin zafi har zuwa digiri 3,200 na ma'aunin celcius kuma ba za su iya samar da fina-finai masu sirara fiye da ƴan microns ba.
Deokar, Costa da abokan aikinsu sun haɓaka hanya mai sauri da ƙarfi don yin zanen zanen graphite kimanin nanometer 100. Tawagar ta yi amfani da wata dabara da ake kira sinadari vapor deposition (CVD) don shuka fina-finan graphite masu kauri (NGFs) a kan foil na nickel, inda nickel ke sarrafa jujjuyawar methane mai zafi zuwa graphite a samansa. "Mun sami NGF a cikin wani mataki na ci gaban CVD na minti 5 a yanayin zafi na 900 digiri Celsius," in ji Deokar.
NGF na iya girma zuwa zanen gado har zuwa 55 cm2 a cikin yanki kuma yayi girma a bangarorin biyu na tsare. Ana iya cire shi kuma a canza shi zuwa wasu saman ba tare da buƙatar wani Layer goyon bayan polymer ba, wanda shine abin da ake bukata na yau da kullum lokacin aiki tare da fina-finai na graphene mai Layer-Layer.
Yin aiki tare da masanin microscopy na lantarki Alessandro Genovese, ƙungiyar ta sami hotunan microscopy na lantarki (TEM) na sassan giciye na NGF akan nickel. "Kiyaye mu'amala tsakanin fina-finan graphite da foil nickel nasara ce da ba a taɓa samun irinta ba kuma zai ba da ƙarin haske game da tsarin haɓakar waɗannan fina-finai," in ji Costa.
Kaurin NGF yana faɗuwa tsakanin fina-finan graphite mai kauri da ke samuwa na kasuwanci da graphene mai Layer Layer. "NGF ta cika zanen zanen graphene da masana'antar graphite, yana ƙara wa arsenal na fina-finai na carbon da aka zana," in ji Costa. Misali, saboda sassaucin sa, ana iya amfani da NGF don sarrafa thermal a cikin wayoyin hannu masu sassauƙa waɗanda yanzu suka fara bayyana a kasuwa. "Idan aka kwatanta da fina-finai na graphene, haɗin gwiwar NGF zai kasance mai rahusa kuma mafi kwanciyar hankali," in ji shi.
Duk da haka, NGF yana da amfani da yawa fiye da zubar da zafi. Wani fasali mai ban sha'awa da aka haskaka a cikin hotunan TEM shine cewa wasu sassa na NGF 'yan yadudduka na carbon ne kawai. "Abin mamaki shine, kasancewar nau'i-nau'i masu yawa na yankunan graphene yana tabbatar da isasshen matakin bayyanar haske a cikin fim din," in ji Deoka. Ƙungiyar binciken ta yi hasashen cewa za a iya amfani da NGF mai gudanarwa, mai jujjuyawar a matsayin wani yanki na sel na hasken rana ko azaman abin ji don gano iskar iskar oxygen dioxide. "Muna shirin haɗa NGF a cikin na'urori domin ta iya aiki a matsayin kayan aiki mai yawa," in ji Costa.
Ƙarin bayani: Gitanjali Deokar et al., Haɓaka sauri na fina-finai masu kauri na nanometer akan foil na nickel mai girman wafer da nazarin tsarin su, Nanotechnology (2020). DOI: 10.1088/1361-6528/aba712
Idan kun ci karo da rubutu, kuskure, ko kuna son ƙaddamar da buƙatun gyara abun ciki a wannan shafin, da fatan za a yi amfani da wannan fom. Don tambayoyi na gaba ɗaya, da fatan za a yi amfani da fam ɗin tuntuɓar mu. Don amsa gabaɗaya, yi amfani da sashin maganganun jama'a da ke ƙasa (bi umarnin).
Ra'ayin ku yana da mahimmanci a gare mu. Koyaya, saboda girman saƙon, ba za mu iya bada garantin keɓaɓɓen amsa ba.
Ana amfani da adireshin imel ɗin ku kawai don gaya wa masu karɓa waɗanda suka aiko imel ɗin. Ba za a yi amfani da adireshin ku ko adireshin mai karɓa don wata manufa ba. Bayanin da kuka shigar zai bayyana a cikin imel ɗin ku kuma Phys.org ba za a adana shi ta kowace hanya ba.
Karɓi sabuntawa kowane mako da/ko kullun a cikin akwatin saƙo naka. Kuna iya cire rajista a kowane lokaci kuma ba za mu taɓa raba bayananku tare da wasu mutane na uku ba.
Muna sa abun cikinmu ya isa ga kowa. Yi la'akari da tallafawa manufar Kimiyya X tare da asusun ƙima.


Lokacin aikawa: Satumba-05-2024