Sonoelectrolytic fakapaaki ʻo e production mei holoki Sulfuric ʻesiti

ʻOku ʻomi ʻe electrolysis ʻo e ʻesiti sulfuric ʻa e kasa fakapaaki ʻo e mo e kasa ʻo e ʻosikena. ʻOku fakasiʻisiʻi ʻe Ultrasonication ʻa e matolu diffusion ʻi he tafaʻaki electrode pea fakaleleiʻi ʻa e feʻaveʻaki paʻanga lolotonga electrolysis. Te Ultrasonication lava ʻo fakatupulaki fakapaaki ʻo e lahi ʻo e kasa ʻi he pilisone electrolytic.

ʻOku fakamatalaʻi ʻi lalo ha Experimental ʻe ua fokotuʻutuʻu mo ha kaponi anode mo ha titanium Cathode. Ke fakatataaʻi ʻa e ngaahi ola lelei ʻo e ultrasonication ʻi he electrolysis, ko e titanium Cathode ko ha sonoelectrode. ʻOku tanaki atu heni ultrasonic tetetete mo cavitation ki he electrolytic ʻo e fakapaaki ʻo e mo e ʻokisikena mei hono fakavaivaiʻi sulfuric ʻesiti. ʻOku fakaʻaongaʻi ʻa hono fakatahaʻi ʻo e ultrasonics mo e ʻuhila ʻi sonoelectrochemistry, sonoelectrolysis mo sonoelectrosynthesis.
ʻOku fakanaunau ʻa e Hielscher ultrasonic homogenizer UP100H (100 Watts, 30kHz) ʻaki ha sonoelectrochemical upgrade. ʻOku lava heni ke fakaʻaongaʻi ʻa e sonotrode ko ha Cathode pe anode ʻi ha founga electrolytic. Ki he ngaahi sonoelectrolytic lalahi setups, kataki ʻo lomiʻi heni!

Show an ultrasonic titanium probe as a sonoelectrolytic cathode in hydrogen production from dilute sulfuric acid.

Sonoelectric Cathode ʻi he UP100H ultrasonic processor

Sonoelectrolysis fokotuʻutuʻu 1 – H-type toʻotoʻo

ʻOku fakaʻaongaʻi ʻe he fokotuʻutuʻu ʻa e sulfuric ʻesiti (H2SO4, 1.0 M). ʻOku fonu ʻa e toʻotoʻo ʻi he electrolyte. ʻOku ʻiloa ʻa e toʻotoʻo ko ʻeni ko ha Hofmann Voltameter. ʻOku ʻi ai ha cylinders sioʻata angatonu ʻe tolu. ʻOku ava ʻa e cylinder ʻi ʻolunga ke lava ʻo fakafonu ʻaki e electrolyte. ʻOku hanga ʻe hono fakaava ʻo e valves ʻi ʻolunga he tiupi ʻi tuʻa ʻo fakaʻata ha kasa ke hao ai lolotonga hono fakafonu. ʻI he electrolytic toʻotoʻo, ʻoku silaʻi ai ʻa e electrodes ʻe he ngaahi mama ulapapeni pea fakauku ke huʻu ki he founga ʻo e vai ʻoku ʻi ai e ʻesiti. ʻOku ngaohi ʻa e anode lelei electrode ʻaki ʻa e kaponi (8mm). Ko e cathode kovi ko ha titanium ultrasonic sonoelectrode (10mm, feituʻu maʻolunga makehe sonotrode, Hielscher UP100H, 100 Watts, 30kHz). ʻOku inert ʻa e titanium sonoelectrode mo e kaponi electrode. ʻE toki fakahoko pe ʻa e Electrolysis ʻi he taimi ʻoku fou atu ai ʻa e ʻuhila ʻi he founga fakavaivaiʻi sulfuric e ʻesiti. Ko ia ai, ʻoku fehokotaki ʻa e kaponi anode mo ha titanium Cathode ki ha maʻuʻanga ivi voltage maʻuʻanga ivi (fakahangatonu lolotonga).
ʻOku tanaki ʻa e kasa fakapaaki ʻo e mo e kasa ʻo e ʻosikena naʻe faʻu ʻi he electrolysis ʻo e ʻesiti sulfuric ʻi he tiupi ʻi tuʻa ʻi he electrode takitaha. ʻOku displaces ʻe he voliume kasa ʻa e electrolyte ʻi he tiupi ʻi tuʻa, pea ʻe lava ke fua ʻa e lahi ʻo e kasa kehe. Ko e fika fehangahangai (ratio) ʻo e tohi kasa ko e 2:1. Lolotonga e electrolysis, ko e vai pe ʻoku toʻo mei he electrolyte ko fakapaaki ʻo e kasa mo e kasa ʻo e ʻosikena. Ko ia ai, naʻe kiʻi tupu hake ʻa e ʻesiti sulfuric ʻi he lolotonga ʻo e electrolysis.
ʻOku fakahaaʻi ʻe he vitio ʻi lalo ʻa e sonoelectrolysis ʻo hono fakavaivaiʻi sulfuric e ʻesiti ʻo fakaʻaongaʻi pulsed ultrasonication (100% amplitude, cycle Mode, sekoni ʻe 0.2, sekoni ʻe 0.8). Naʻe fakatou lele ʻa e ongo sivi ʻi he 2.1 V (TF, voltage maʻu pe).

ʻOku fakahaaʻi ʻe he vitio ko ʻeni ʻa e sonoelectrolytic ʻo fakapaaki ʻo e ʻi ha Hofmann Voltameter

Sonoelectrolytic fakapaaki ʻo e Production ʻi Hofmann Voltameter

Kole 'a e fakamatala




Fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Sonoelectrolysis fokotuʻutuʻu fika 2 – Kulupu (Batch) Foaki Faingofua

ʻOku fonu ha ipu sioʻata ʻi ha electrolyte ʻo e ʻesiti sulfuric (H2SO4, 1.0 M). ʻI he kiʻi electrolytic faingofua ko ʻeni, ʻoku fakauku ai ʻa e electrodes ki ha founga ke fakaleleiʻi ʻaki ʻa e vai ʻoku ʻi ai e ʻesiti. ʻOku ngaohi ʻa e anode lelei electrode ʻaki ʻa e kaponi (8mm). Ko e cathode kovi ko ha titanium ultrasonic sonoelectrode (10mm, MS10, Hielscher UP100H, 100 Watts, 30kHz). ʻE toki fakahoko pe ʻa e Electrolysis ʻi he taimi ʻoku fou atu ai ʻa e ʻuhila ʻi he founga fakavaivaiʻi sulfuric e ʻesiti. Ko ia ai, ʻoku fehokotaki ʻa e kaponi anode mo ha titanium Cathode ki ha maʻuʻanga ivi voltage maʻuʻanga ivi (fakahangatonu lolotonga). ʻOku inert ʻa e titanium electrode mo e kaponi electrode. ʻOku ʻikai tanaki ʻa e kasa fakapaaki ʻo e mo e kasa ʻo e ʻokisikena naʻe faʻu ʻi he electrolysis ʻo e ʻesiti fakavaivaiʻi sulfuric ʻi he fokotuʻutuʻu ko ʻeni. ʻOku fakahaaʻi ʻe he vitio ʻi lalo ʻa e fokotuʻutuʻu faingofua ko ʻeni ʻi he ngaue.

ʻOku fakahaaʻi ʻe he vitio ko ʻeni ʻa e sonoelectrolysis ʻo e vai ke ngaohi fakapaaki ʻo e mo e ʻosikena

Sonoelectrolysis ʻo e vai ki fakapaaki ʻo e mo e ʻOsikena

Ke kole ha fakamatala lahi ange!

Kataki ʻo fakaʻaongaʻi ʻa e foomu ʻi lalo, kapau ʻoku ke fie kole ha toe fakamatala fekauʻaki mo hono fakaʻaongaʻi ʻo e sonoelectrochemistry. Te mau fiefia ke ʻoatu ha polokalama ultrasonic ki hoʻo ngaahi fie maʻu.









Kataki 'o fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ko e ha ʻoku hoko lolotonga Electrolysis?

ʻOku femanakoʻaki ʻa e fakapaaki ʻo e ions mo e cathode kovi. ʻOku fakasiʻisiʻi ai ʻa e fakapaaki ʻo e ion pe vai molecules ki fakapaaki ʻo e kasa molecules ʻe ha electron maʻu. Ko hono ola fakapaaki ʻo e e kasa molecules ko ha kasa fakapaaki ʻo e. ʻOku ʻomi ʻe he electrolysis ʻo ha ngaahi salts ukamea lahi pe ngaahi founga fakaleleiʻi ʻo e ʻesiti fakapaaki ʻo e ʻi he cathode electrode.
ʻOku femanakoʻaki ʻa e sulphate ions pe ko e ʻo ʻo hydroxide ions ki he anode lelei. ʻOku fuʻu lelei ʻaupito ʻa e sulfate ion, ko ia ʻoku ʻikai ha meʻa ʻe hoko. Hydroxide ions pe vai molecules tukuange mo oxidized ʻi he anode ke faʻu ha ʻosikena. Ko e tali lelei ko ʻeni anode ko ha tali oxidation electrode ia ʻe ha mole electron.

Ko e ha ʻoku tau fakaʻaongaʻi ai ʻa e ʻesiti Sulfuric?

ʻOku ʻi he vai ha miniti concentrations ʻo fakapaaki ʻo e ions mo hydroxide ions pe. ʻOku fakangatangata ʻe he meʻa ni ʻa e conductivity fakaʻuhila. ʻOku hanga ʻe he concentrations maʻolunga ʻo fakapaaki ʻo e ions mo sulfate ions mei he ʻesiti fakavaivaiʻi sulfuric ʻo fakaleleiʻi ʻa e conductivity fakaʻuhila ʻo e electrolyte. Pe, te ke lava ʻo fakaʻaongaʻi ʻa e ʻalakalaine electrolyte fakaleleiʻi hange ko e sotiume hydroxide (KOH) pe ʻelemeniti ko hydroxide (NAOH), mo e vai. ʻOku ʻomi ʻe he electrolysis ʻo e ngaahi founga fakaleleiʻi lahi ʻo e salts pe sulfuric ʻa e ʻesiti fakapaaki ʻo e ʻi he cathode mo e ʻokisikena ʻi he anode lelei. ʻOku ʻomi ʻe he electrolysis ʻo hydrochloric ʻesiti pe chloride salts chlorine ʻi he anode.

Ko e ha ʻa e Electrolyzer?

Ko e electrolyzer ko ha meʻangaue ia ke fakamavaheʻi ʻaki ʻa e vai ki fakapaaki ʻo e mo e ʻokisikena ʻi ha founga ʻoku ʻiloa ko electrolysis. ʻOku fakaʻaongaʻi ʻe he electrolyzer ʻa e ʻuhila ke ngaohi ʻaki fakapaaki ʻo e kasa mo e kasa ʻokisikena. ʻE lava ke tauhi ʻa e kasa fakapaaki ʻo e ko ha kasa kuo fakasiʻisiʻi pe ai kuo viviku. Ko e fakapaaki ʻo e ko ha ivi ia ke fakaʻaongaʻi ʻi fakapaaki ʻo e penisini ʻi he ngaahi kaa, lelue, pasi, pe loli.
ʻOku ʻi ai ha tefitoʻi electrolyzer ʻoku ʻi ai ha Cathode (totongi kovi) mo ha anode (totongi lelei) mo vakai ngaahi konga, hange ko e pamu, vents, tangike tukuʻanga koloa, maʻuʻanga ivi, separator, mo ha ngaahi konga kehe pe. Ko e electrolysis vai ko ha tali electrochemical ia ʻoku hoko ʻi he electrolyzer. ʻOku vahevahe ʻa e anode mo e Cathode ʻe ha ʻau fakahangatonu mo e vai (H20) ki hono ngaahi kongokonga fakapaaki ʻo e (H2) mo e ʻosikena (O2).

Ngaahi tohi/fakamo'oni fakafolofola