Iterambere nisesengura ryubukungu byumusaruro wa hydrogène ukoresheje electrolysis ya okiside ikomeye

Iterambere nisesengura ryubukungu byumusaruro wa hydrogène ukoresheje electrolysis ya okiside ikomeye

Electrolyzer ikomeye ya okiside (SOE) ikoresha umwuka wamazi wo hejuru (600 ~ 900 ° C) kuri electrolysis, ikora neza kuruta electrolyzer ya alkaline na PEM electrolyzer. Mu myaka ya za 1960, Amerika n'Ubudage byatangiye gukora ubushakashatsi ku byuka byo mu kirere byo mu kirere SOE. Ihame ryakazi rya SOE electrolyzer ryerekanwe mubishusho 4. hydrogène yongeye gukoreshwa hamwe numwuka wamazi byinjira muburyo bwa reaction kuva kuri anode. Umwuka wamazi uhindurwamo hydrogène kuri cathode. O2 yakozwe na cathode inyura muri electrolyte ikomeye igana kuri anode, aho isubiranamo ikora ogisijeni ikarekura electron.

Bitandukanye na alkaline na proton ihinduranya membrane electrolytike selile, electrode ya SOE ikora hamwe no guhura numwuka wamazi kandi ihura nikibazo cyo kwagura ubuso bwimbere hagati ya electrode nu mwuka wamazi. Kubwibyo, SOE electrode muri rusange ifite imiterere. Intego ya electrolysis y'amazi ni ukugabanya ingufu zingufu no kugabanya ikiguzi cyo gukora amazi asanzwe ya electrolysis. Mubyukuri, nubwo ingufu zose zisabwa kugirango amazi yangirika yiyongere gato hamwe nubushyuhe bwiyongera, ingufu z'amashanyarazi ziragabanuka cyane. Mugihe ubushyuhe bwa electrolytike bwiyongera, igice cyingufu zisabwa gitangwa nkubushyuhe. SOE ishoboye kubyara hydrogène imbere yubushyuhe bwo hejuru. Kubera ko ubushyuhe bwo hejuru bwa gazi ikonjesha ingufu za kirimbuzi zishobora gushyuha kugeza kuri 950 ° C, ingufu za kirimbuzi zishobora gukoreshwa nkisoko yingufu za SOE. Muri icyo gihe, ubushakashatsi bwerekana ko ingufu zishobora kongera ingufu nk’ingufu za geothermal nazo zifite ubushobozi nkisoko yubushyuhe bwa electrolysis. Gukorera ku bushyuhe bwo hejuru birashobora kugabanya ingufu za batiri no kongera umuvuduko wa reaction, ariko kandi ihura ningorabahizi yumuriro wumuriro no gufunga. Byongeye kandi, gaze ikorwa na cathode ni hydrogène ivanze, igomba kurushaho gutandukanywa no kwezwa, byongera igiciro ugereranije n’amazi asanzwe y’amazi ya electrolysis. Gukoresha ceramika ikora proton, nka strontium zirconate, igabanya igiciro cya SOE. Strontium zirconate yerekana proton nziza cyane kuri 700 ° C, kandi ifasha cathode kubyara hydrogène nziza cyane, byoroshya ibikoresho bya electrolysis.

Yan n'abandi. ] Kuri 1000 ° C, 0.4A / cm2 na 39.3W imbaraga zinjiza, ubushobozi bwa hydrogène yumuriro ni 17.6NL / h. Ingaruka za SOE ni volvoltage ituruka ku gihombo kinini cya ohm gikunze kugaragara hagati yimikorere ya selile, hamwe nubushyuhe bukabije burenze urugero kubera imipaka yo gutwara imyuka ikwirakwizwa. Mu myaka ya vuba aha, ingirabuzimafatizo ya electrolytike yitabiriwe n'abantu benshi [7-8]. Bitandukanye n'utugingo ngengabuzima, utugingo ngengabuzima dutuma inganda zikora neza kandi zigateza imbere umusaruro wa hydrogène [6]. Kugeza ubu, inzitizi nyamukuru zibangamira ishyirwa mu bikorwa ry’inganda za SOE ni ihame rirambye ry’akagari ka electrolytike [8], kandi hashobora guterwa ibibazo byo gusaza kwa electrode no gukuraho.