Gukoresha ibikoresho bya nanostructures kubikoresho bitatu bya nikel ifuro nkibikoresho bya electrocatalyses yo kumena amazi

Kugabanuka kw'ibicanwa biva mu kirere hamwe no guhangayikishwa n’ingufu n’ibibazo by’ibidukikije byatumye habaho ubushakashatsi bwimbitse bwo guteza imbere ubundi buryo bw’ingufu.Amashanyaraziy'amazi afatwa nk'ingamba zitanga umusaruro wa hydrogène. Nyamara, kumena amazi neza bisaba amashanyarazi meza kandi arambye ashobora kwihutisha kinetike yo gukuramo ogisijeni (OER) hamwe na hydrogène ikuramo (HER). Ibyuma byiza birimo catalizator, nka Pt hamwe nudusimba twayo, RuO2 na IrO2, kuri ubu ni catalizaires nziza cyane yo gutangiza OER na HER. Nyamara, igiciro kinini nubuke bwibyuma byiza byadindije ikoreshwa ryabyo niterambere ryiterambere ryikoranabuhanga rishya. Kugira ngo tuneshe izo mbogamizi, hashyizweho ingufu nyinshi mugushushanya no guhuza ibyuma bidafite agaciro ka electrocatalysis ukoresheje ibikoresho byinshi byisi nkuburyo bwubukungu bwa OER na OERHER. Inzibacyuho ya oxyde, sulfide, fosifide, ibikoresho bya karubone, selenide, hamwe n’ibyuma bivanze n’ibyuma byakozweho ubushakashatsi bwimbitse kandi byerekana imikorere itanga icyizere kuri OER na HER. Nyamara, ibyinshi muribi byuma bikoresha amashanyarazi bisaba imbaraga zirenze ubushobozi bwa catalizike nziza, kandi kuzamura umutekano bikomeza kuba ingenzi. Kubwibyo, harakenewe byihutirwa guteza imbere ibiciro bidahenze kandi byubaka ubundi buryo bwa electrode hamwe nibikorwa byinshi kandi bihamye byigihe kirekire kugirango amazi agabanuke neza.

Mu rwego rwo gukoresha amashanyarazi, ingamba ebyiri zingenzi zakoreshejwe mugutegura electrode. Ubuhanga bwa mbere kandi bukoreshwa cyane burimo gukoresha catalizator muburyo bwifu. Mubisanzwe, electrode yubatswe hifashishijwe ibishishwa byibikoresho byamashanyarazi, ibyongerera imbaraga, hamwe nibifata kumashanyarazi. Ariko, ubu buryo ntabwo bubi. Ingaruka nyamukuru nicyo gisabwa kugirango amashanyarazi akoreshe amashanyarazi, agabanya aho uhurira hagati ya electrolyte na catalizator. Ibi birashobora gutuma uhagarika imbuga zikora cyane, bikavamo kurwanya cyane no kugabanya imikorere ya electrocatalytic. Byongeye kandi, electrode irasa nkaho idahindagurika, kuko catalizator ifatanye ikunda gukuramo ibice byayobora hejuru yubucucike buri hejuru. Ingamba ya kabiri nyamukuru yo gutegura electrode ni ugukoresha ibikoresho byiza bishingiye ku cyuma gishyizwe kuri electrodepositike ku buryo butaziguye kuri substrate ikora, nka nikel ifuro, ifu y'umuringa, imyenda ya karubone cyangwa impapuro, FTO, ibyuma bitagira umwanda na nikel foil. Ariko, ubu buryo ntabwo bufite aho bugarukira. Biragoye kugenzura neza umwanya uhagije hagati yububiko bwabitswe kandi rero, imikorere ya electrode igabanuka hamwe no kongera umubyimba wa firime bitewe nuburyo butagaragara bwa substrate kurubuga rukora imbere. Mubyongeyeho, ibintu bigoye hamwe nigiciro kinini cyuburyo bubuza cyane gushyira mubikorwa. Kubwibyo, iterambere ryubuhanga buhendutse bwo guhimba kuriibice bitatu (3D) electrodeni nkenerwa muburyo bwiza bwo gukoresha amashanyarazi.

Iterambere ryibikoresho bishya bitatu-byuma bifite ibyuma byubatswe hamwe nubuso bwihariye bwubuso bwakwegereye abantu benshi bitewe nubushobozi bwabo bwo kugabanya uburebure bwa ion no kongera ionic na electronique. Kubwibyo, icyerekezo cyiza cyo gushushanya amashanyarazi ni uguhuza ibipimo bitandukanye byubatswe kugirango habeho nanostructures igizwe nabatwara catalizator itanga imiyoboro ihanitse, ubuso bunini nubutumburuke buhanitse.Nickel ifuro. Imiyoboro iri muri NF nayo itanga uburyo bwiza bwo kwimura hamwe nubuso bunini kuri buri gice. Ubushakashatsi butandukanye, burimo ifuro ryibyuma bitandukanye, meshes, file hamwe nigitambara, byakorewe ubushakashatsi nkikusanyirizo ryamashanyarazi nka bateri ya lithium-ion, super super capacator, selile izuba hamwe no kugabana amazi. By'umwihariko, NFs zishimishije zashishikaje abantu bitewe nigiciro cyazo gito, amashanyarazi, hamwe nubuso bunini bwamashanyarazi, nibyiza byo gupakira catalizator no kongera amashanyarazi akoreshwa. Byongeye kandi, NFs ifite ibyiza byo kuzamura ubwikorezi rusange bwa electrolytite, bigatuma iba abakandida babereye ahantu hanini hateraniye hamwe mukoresha ingufu. Gukura mu buryo butaziguye ibikoresho bifatika kuri nikel ifuro nabyo byongera catalizator-substrate kugirango ihererekanyabubasha rya elegitoronike mu buryo bwo gufata amazi. Mugihe supercapacitor na electrode ya batiri ikomeza kuba progaramu nyamukuru ya NFs, ubushakashatsi buherutse gukorwa bwerekanye ko ibikoresho bya electrode byashyizwe kuri ibi bikoresho bifite ibikorwa bya OER birenze Ni foils na net. Ibi bikoresho birashobora gukoreshwa haba muburyo busanzwe cyangwa bigashushanyirizwa hamwe nibikoresho bifatika, kandi ifuro irashobora gukoreshwa haba mubikusanyirizo hamwe no gushyigikira insimburangingo. Rero, imikurire ya nanostructures, ikungahaye ku isi ya catalitiki kuri NF substrates itanga amasezerano yo guteza imbere ibikoresho bya electrode bigezweho byo kubika ingufu / ibikoresho byo guhindura. Nubwo amashanyarazi akungahaye ku isi akura ku buryo butaziguye ku ifuro ya nikel arahari, electrode zifite ibipimo bitatu kuri nikel ifuro ya OER na HER ntabwo zigeze zikorwa ubushakashatsi bwimbitse, nubwo ari inzego zinyuranye zihenze kandi zoroshye guhimba.