Yin amfani da kayan nanostructured akan kayan kumfa nickel mai girma uku a matsayin electrocatalysts don fatattakar ruwa

Rushewar albarkatun mai da damuwa game da makamashi da al'amuran muhalli sun haifar da yunƙurin bincike don haɓaka hanyoyin samar da makamashi.Electrochemical electrolysisAna ɗaukar ruwa a matsayin dabarun samar da man hydrogen. Duk da haka, ingantaccen ruwa mai fashe yana buƙatar ingantattun na'urorin lantarki masu ɗorewa waɗanda zasu iya haɓaka motsin motsin iskar oxygen-hakar (OER) da haɓakar haɓakar hydrogen (HER). Ƙarfe mai daraja, irin su Pt da alloys ɗin sa, RuO2 da IrO2, a halin yanzu sune mafi kyawun abubuwan haɓakawa don haɓaka OER da HER. Duk da haka, tsada da ƙarancin karafa masu daraja sun kawo cikas ga manyan aikace-aikacen su da haɓaka fasahohin makamashi masu sabuntawa. Don shawo kan waɗannan iyakoki, an yi ƙoƙari sosai don ƙira da haɗa na'urorin lantarki marasa daraja ta ƙarfe ta amfani da abubuwa masu yawa a duniya azaman madadin tattalin arziki ga OER da OERHER. Ƙarfe oxides na canzawa, sulfides, phosphides, kayan carbon, selenides, da hadaddun ƙarfe-karfe an yi nazari sosai kuma sun nuna kyakkyawan aiki ga OER da HER. Duk da haka, yawancin waɗannan na'urori na lantarki suna buƙatar ƙarfin ƙarfi fiye da ma'auni na tushen ƙarfe masu daraja, kuma inganta zaman lafiyar su yana da mahimmanci. Sabili da haka, akwai buƙatar gaggawa don haɓaka ƙirar lantarki mai sauƙi da inganci tare da babban aiki da kwanciyar hankali na dogon lokaci don ingantaccen rarraba ruwa.

A fagen aikace-aikacen electrochemical, An yi amfani da manyan dabaru guda biyu don shirya na'urorin lantarki. Dabarar farko da aka fi amfani da ita ta haɗa da yin amfani da sinadarai a cikin foda. Yawanci, ana gina na'urorin lantarki ta hanyar amfani da slurries na kayan lantarki, masu haɓaka haɓaka aiki, da adhesives akan abubuwan sarrafawa. Duk da haka, wannan hanya ba tare da drawbacks. Babban hasara shine abin da ake buƙata don ɗaure mai rufewa ta lantarki, wanda ke rage wurin hulɗa tsakanin electrolyte da mai haɓakawa. Wannan na iya haifar da toshe wuraren da ke aiki mai ƙarfi, yana haifar da juriya mai ƙarfi da rage aikin lantarki. Bugu da ƙari, na'urorin lantarki ba su da kwanciyar hankali, saboda abin da aka haɗa da shi yana ƙoƙarin barewa daga abin da ke gudanarwa a babban yawan halin yanzu. Babban dabara na biyu don shirye-shiryen lantarki shine amfani da kayan ƙarfe masu daraja waɗanda aka sanya su kai tsaye a kan kumfa na nickel, foil na jan karfe, zanen carbon ko takarda, FTO, bakin karfe da foil nickel. Duk da haka, wannan hanya ba tare da iyakoki ba. Yana da wuya a daidaita daidaitaccen sararin samaniya tsakanin ajiyar kayan aiki da aka ajiye kuma, sabili da haka, aikin lantarki yana raguwa tare da ƙara kauri na fim saboda rashin isa ga substrate zuwa wuraren da ke aiki a ciki. Bugu da kari, rikitarwa da tsadar hanyar suna hana yin amfani da shi sosai. Sabili da haka, haɓaka dabarun ƙirƙira masu tsada masu tsada donna'urori masu girma uku (3D).wajibi ne don aikace-aikacen lantarki mai nasara.

Haɓaka sabbin kayan ƙarfe masu girma uku tare da sifofi masu ƙarfi da takamaiman wuraren da ke da fa'ida ya jawo hankali sosai saboda yuwuwar su don rage tsayin yaduwar ion da haɓaka haɓakar ionic da lantarki. Sabili da haka, jagora mai ban sha'awa don ƙirar electrocatalyst shine haɗa nau'ikan tsarin daban-daban don ƙirƙirar ƙirar nanostructured na masu ɗaukar hoto waɗanda ke ba da haɓaka mai ƙarfi, babban yanki da kwanciyar hankali.Kumfa nickel(NF), wani abu na kasuwanci da kuma maras tsada, an yi amfani da shi sosai a matsayin kayan aiki da mai ɗaukar kaya don kayan lantarki saboda kyawawa mai girma uku-bude-bude-bude tsarin, high lantarki watsin, da kuma babban takamaiman surface area.The micropores da jagged kwarara. tashoshi a cikin NFs kuma suna ba da kyakkyawar canja wurin taro da babban yanki na kowane yanki. An bincika abubuwa daban-daban, gami da kumfa na ƙarfe daban-daban, raga, foils da yadudduka, azaman masu tattara kayan aikin lantarki kamar batirin lithium-ion, supercapacitors, ƙwayoyin hasken rana da rarrabuwar ruwa. Musamman ma, NFs masu laushi sun jawo hankali saboda ƙananan farashin su, ƙarfin lantarki, da kuma babban yanki na lantarki, wanda ya dace don loda masu haɓakawa da haɓaka wuraren aiki na lantarki. Bugu da kari, porous NFs suna da abũbuwan amfãni a inganta taro sufuri na electrolytes, sa su dace 'yan takara ga high surface yanki na yanzu tarawa a makamashi aikace-aikace. Haɓaka kai tsaye na kayan aiki akan kumfa nickel shima yana haɓaka tuntuɓar mai haɓakawa-substrate don ingantaccen canja wurin lantarki a cikin halayen fatattakar ruwa. Yayin da supercapacitor da na'urorin lantarki sun kasance manyan aikace-aikacen NFs, binciken kwanan nan ya nuna cewa kayan lantarki da aka ajiye akan wannan kayan suna da aikin OER mafi girma fiye da Ni foils da raga. Ana iya amfani da waɗannan kayan ko dai a cikin nau'in halitta ko kuma a yi musu ado da kayan aiki masu aiki, kuma ana iya amfani da kumfa a matsayin masu tarawa da masu tallafi. Don haka, haɓakar nanostructured, kayan katalytic mai arziƙin ƙasa akan abubuwan NF yana ɗaukar alƙawarin haɓaka kayan haɓaka na'urorin lantarki don ajiyar makamashi/na'urorin juyawa. Duk da cewa na'urorin lantarki masu arziƙin ƙasa waɗanda aka girma kai tsaye akan kumfa nickel galibi ana samunsu, ba a yi bincike da yawa akan kumfa na nickel mai nau'i uku na OERs da HERs ba, duk da cewa suna da sifofi masu rahusa waɗanda ba su da tsada kuma masu sauƙin ƙirƙira.