saxan laba-cirifoodka graphitewaa qayb muhiim ah oo loo isticmaalo qalabka korantada kiimikaad sida unugyada shidaalka iyo korantada, sida caadiga ah ka samaysan walxaha garaafka nadiifka ah. Waxay door muhiim ah ka ciyaartaa falcelinta korantada, oo inta badan loo isticmaalo in lagu sameeyo hadda, qaybinta gaaska falcelinta (sida hydrogen iyo oxygen), iyo meelaha falcelinta ee goonida ah. Sababtoo ah labadeeda dhinacba waxay la xiriiraan anode iyo cathode ee unugyo hal dhinac ah, samaynta qaab-dhismeedka "bipolar" (hal dhinac waa qulqulka qulqulka anode iyo dhinaca kale waa qulqulka qulqulka cathode), waxaa lagu magacaabaa saxanka laba-cirifoodka.
Qaab dhismeedka saxan laba-cirifoodka graphite
Taarikada laba-cirifoodka ee graphite waxay badanaa ka kooban yihiin qaybaha soo socda:
1. Goobta socodka: Dusha sare ee saxanka laba-cirifoodka waxaa loogu talagalay qaab-dhismeedka qulqulka qulqulka adag si uu si siman u qaybiyo gaaska fal-celinta (sida hydrogen, oxygen ama hawada) oo uu soo saaro biyaha la abuuray.
2. Lakabka wax-qabadka: Maaddada garaafka lafteedu waxay leedahay dhaqdhaqaaq wanaagsan waxayna u samayn kartaa si hufan hadda.
3. Meesha lagu xidhoCidhifyada taarikada laba-cirifoodka waxaa badanaa loogu talagalay qaab-dhismeedyo daboolaya si looga hortago daadinta gaaska iyo gelitaanka dareeraha.
4. Kanaalada qaboojinta (ikhtiyaar)Qaar ka mid ah codsiyada waxqabadka sare leh, kanaalada qaboojinta ayaa laga yaabaa in lagu qaabeeyo gudaha taarikada laba-cirifoodka si loo xakameeyo heerkulka hawlgalka ee qalabka.
Hawlaha taarikada laba-cirifoodka ee graphite
1. Shaqada wax-qabadka:
Sida korantada qalabka korantada, saxanka laba-cirifoodka ayaa mas'uul ka ah ururinta iyo samaynta hadda si loo hubiyo wax soo saarka tamarta korontada.
2. Qaybinta gaaska:
Iyada oo loo marayo naqshadeynta kanaalka socodka, saxanka laba-cirifoodka wuxuu si siman u qaybiyaa gaaska falcelinta lakabka kicinta, kor u qaadista falcelinta korantada.
3. Aagagga falcelinta:
Unugga shidaalka ama korantada, taargooyinka laba-cirifoodka ayaa kala sooca meelaha anode iyo cathode, iyaga oo ka hortagaya in gaasku isku qasmaan.
4. Kulayl darida iyo dareeraha:
Taarikada laba-cirifoodka waxay caawisaa habaynta heerkulka hawlgalka qalabka iyo soo daa biyaha ama alaabada kale ee ay dhaliso falcelinta.
5. Taageerada makaanikada:
Taarikada laba-cirifoodka ah waxay bixiyaan taageero qaabdhismeed xuubka korantada , hubinta xasilloonida iyo adkeysiga qalabka.
Maxaad u doorataa graphite sida saxan laba-cirifoodka ah?
Qalabka walxaha ee taarikada laba-cirifoodka graphite
●Dhaqdhaqaaq sare:
Iska caabbinta ugu badan ee garaafyada ayaa ah mid hooseeya sida 10-15μΩ.cm (ka wanaagsan 100-200 μΩ·cm eesaxan bipolar ah) .
●Iska caabbinta daxalka:
Ku dhawaad wax daxal ah kuma laha deegaanka acidic ee unugyada shidaalka (pH 2-3), iyo nolosha adeeg waxay gaari kartaa in ka badan 20,000 saacadood.
●Fudud
Cufnaanta waxay ku saabsan tahay 1.8 g/cm3 (7-8 g/cm3 ee saxanka bipolar), kaas oo faa'iido u leh dhimista miisaanka codsiyada baabuurta.
●Hantida xannibaadda gaaska:
Qaab dhismeedka cufan ee garaafka wuxuu si wax ku ool ah uga hortagi karaa dhexgalka hydrogen wuxuuna leeyahay badbaado sare.
●Habayn fudud:
Walaxda graphite waa sahlan tahay in la farsameeyo oo waxay habeyn kartaa naqshadaha kanaalka qulqulka adag iyo cabbirrada iyadoo loo eegayo baahiyaha.
Sidee loo soo saaray taarikada laba-cirifoodka ee graphite?
Habka wax soo saarka eesaxan laba-cirifoodka graphitewaxaa ka mid ah kuwan soo socda:
●Diyaarinta alaabta ceeriin:
Isticmaal nadiif sare (> 99.9%) garaafka dabiiciga ah ama budada garaafka macmalka ah.
Ku dar resin (sida resin phenolic) sidii xidhe si kor loogu qaado xoogga farsamada.
●Isku-buufinta:
Walxaha isku dhafan waxaa lagu duraa caaryada waxaana lagu riixaa heerkul sare (200-300 ℃) iyo cadaadis sare (> 100 MPa).
●Daawaynta garaafka:
Kuleylinta ilaa 2500-3000 ℃ jawiga aan firfircoonayn waxay sababtaa canaasiirta aan kaarboonka ahayn inay is beddesho oo ay sameeyaan qaab-dhismeedka garaafiga cufan.
●Habaynta orodyahanka:
Isticmaal mashiinnada CNC ama laysarka si aad u soo saartid serpentine, isbar-bar yaac ah ama kanaalada kala-goysyada ah (dhererka 0.5-1 mm).
●Daaweynta dusha sare:
Impregnation leh resin ama bir (sida dahabka, titanium) daahan waxay yaraynaysaa caabbinta xidhiidhka waxayna wanaajisaa caabbinta xidhashada.
Waa maxay codsiyada taarikada laba-cirifoodka graphite?
1. Unugga Shidaalka:
- Unugga shidaalka beddelka borotoonka (PEMFC)
- Unugyada Shidaalka Oksaydhka adag (SOFC)
Unugyada Shidaalka ee Methanol Tooska ah (DMFC)
2. Electrolyzer:
- Wax-soo-saarka hydrogen-ka ee koronto-lalisyada biyaha
- Warshadaha Chlor-alkali
3. Habka kaydinta tamarta:
- batteriga socda
4. Warshadaha Kiimikada:
- Reactor Electrochemical
5. Cilmi-baarista shaybaadhka:
- Prototype horumarinta iyo tijaabinta unugyada shidaalka iyo electrolysers
Soo koob
Taarikada laba-cirifoodka ee graphitewaa qaybaha asaasiga ah ee qalabka elektiroonigga ah sida unugyada shidaalka iyo korantada, waxayna leeyihiin hawlo kala duwan sida korantada, qaybinta gaaska, iyo kala soocida aagagga falcelinta. Iyadoo horumarinta tignoolajiyada tamarta nadiifka ah, taarikada laba-cirifoodka graphite ayaa si sii kordheysa loogu isticmaalo baabuurta tamarta cusub, nidaamyada kaydinta tamarta, soosaarka hydrogen kiimikada iyo meelaha kale.
Waqtiga boostada: Mar-31-2025