Kodi Graphite Electrode Felt ndi chiyani?

Graphite electrode adamvandi chinthu chopangidwa ndi mpweya chopanda pobowola komanso cholimba kutentha kwambiri chomwe chimagwiritsidwa ntchito kwambiri mu ntchito zamagetsi, makamaka mu makina osungira ndi kusintha mphamvu monga mabatire oyenda ndi redox, ma cell amafuta, ndi ma reactor amagetsi. Chimapangidwa ndi ma precursors a ulusi wopaka ndi graphitizing (nthawi zambiri amakhala ndi PAN kapena rayon-based felts), omwe amapanga netiweki ya ulusi wa kaboni yokhala ndi magawo atatu yokhala ndi magetsi abwino kwambiri komanso kukhazikika kwa mankhwala.

1. Kapangidwe ndi Kapangidwe

Chovala cha graphite electrode chimapangidwa ndi ulusi wa kaboni wambirimbiri wolumikizana mu mphasa yopanda ulusi. Pambuyo pa carbonization (nthawi zambiri pamwamba pa 1000 °C) ndi graphitization (nthawi zambiri pamwamba pa 2000 °C), zinthuzo zimapeza phindu:

• Mphamvu yamagetsi yapamwamba
• Kukana dzimbiri mu acidic kapena alkaline media
• Kukhazikika kwa kutentha pamwamba pa 3000 °C m'malo opanda mpweya

Imasunga kapangidwe kofewa, kotha kupanikizika koma imakhala yosagwira ntchito ndi mankhwala komanso imagwira ntchito zamagetsi.

2. N’chifukwa Chiyani Mungagwiritse Ntchito Felt mu Ma Electrode?

Mosiyana ndi mbale zolimba za graphite, graphite felt imapereka malo akuluakulu amkati komanso kufalikira kwa ma ion, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pazochitika zamagetsi zomwe zimapindula ndi kusamutsa kwakukulu kwa mass. Kapangidwe kake ka ma pore otseguka kamalola electrolyte kulowa mozama, zomwe zimathandiza kuti redox ichitike m'ma voliyumu onse—osati pamwamba pokha.

Ubwino waukulu:

• Malo okwera kwambiri: Yoyenera kugwiritsa ntchito mphamvu zambiri zamagetsi
• Kulumikizana kwamagetsi kwabwino: Imasunga kayendedwe ka mphamvu yamagetsi m'magawo opanikizika
• Makulidwe ndi kachulukidwe kosinthika: Yakonzedwa kuti igwirizane ndi mapangidwe enaake a stack
• Wopepuka komanso wosinthasintha: Yosavuta kugwira ndi kupanga
• Kulimba kwa kutentha: Imagwira ntchito kutentha kwambiri

3. Mapulogalamu Odziwika

Graphite electrode felt imagwiritsidwa ntchito kwambiri mu:

Mabatire a Redox Flow (VRFB, IRFB, ndi zina zotero)

Malo ake akuluakulu amathandizira ma V²⁺/V³⁺ ndi VO²⁺/VO₂⁺ redox couples bwino. Kulimba kwambiri komanso mphamvu yoyendetsera zinthu zimapangitsa kuti ikhale yabwino kwambiri kuti igwire ntchito nthawi yayitali.

Maselo a Mafuta

Mu mapangidwe ena a maselo amafuta, graphite felt imagwira ntchito ngati electrode yotulutsa mpweya woboola kapena chonyamulira chothandizira.

Ma Electrolyzers / Ma Electrochemical Reactors

Ma electrode a felt amagwiritsidwa ntchito mu njira zosiyanasiyana zamagetsi monga kukonza madzi otayira, kupanga magetsi, ndi kupanga haidrojeni.

Kafukufuku wa Laboratory

Chifukwa cha kusinthasintha kwake, mtengo wake wotsika, komanso kusavuta kukonza, graphite felt imagwiritsidwa ntchito kwambiri poyesa zitsanzo ndi kuyesa kwa bench-scale.

4. Magawo Osankha

Posankha graphite felt ya electrode, zinthu zingapo ziyenera kuganiziridwa:

5. Zosintha Zofala

Ngakhale kuti graphite yosachiritsidwa inkaoneka kuti imagwira ntchito bwino, kusintha kwa pamwamba nthawi zambiri kumawonjezera magwiridwe antchito amagetsi:

• Kutsegula kwa kutentha: Imayambitsa magulu okhala ndi mpweya kuti iwonjezere kunyowa
• Kuthira mankhwala kapena mankhwala a plasma: Imawonjezera mawebusayiti omwe akugwira ntchito komanso imawonjezera kuchuluka kwa zochita
• Kutsegula kwa chothandizira: Ma oxide achitsulo (monga, MnO₂, Pt, Ir) akhoza kuwonjezeredwa kuti akonze machitidwe enaake
• Chophimba cha Graphene/nanocarbon: Imawongolera mphamvu ya ma conductivity ndi umphumphu wa makina

6. Mfundo Zofunika Kuziganizira Pogwiritsira Ntchito Mwanzeru

• Kupsinjika: Khalidwe la munthu limasintha pamene likupanikizika; mphamvu ya mpweya ndi kukana kuyenda kwa madzi ziyenera kukhala zofanana
• Chiyero: Ma felt oyeretsedwa kwambiri amafunika m'makina osavuta kuipitsa
• Kusamalira: Ayenera kupewa kuipitsidwa ndi mafuta, fumbi, kapena tinthu tachitsulo; magolovesi oteteza ndi malo opanda fumbi akulangizidwa
• Chithandizo chisanachitikeKutsuka kapena kukonza pasadakhale kungafunike kutengera momwe ma electrolyte amagwirizanirana.

Graphite electrode adamvasi chinthu chokhacho—ndi gawo lamagetsi logwira ntchito kwambiri. Kuphatikiza kwake kwa conductivity, porosity, kusinthasintha, ndi kukana mankhwala kumapangitsa kuti ikhale chisankho chokondedwa m'ma batri apamwamba, ma electrolyzer, ndi machitidwe osinthira mphamvu m'ma labu.

Kaya mukupanga batire ya redox ya m'badwo wotsatira kapena kuyesa kuyanjana kwatsopano kwa catalyst mu prototype ya fuel cell, graphite felt imapereka nsanja yosinthika komanso yosinthika yogwiritsira ntchito bwino zamagetsi.