Graphite Electrode Felt ni iki?

Electrode ya grafitini ibikoresho bifite imyenge kandi birwanya karuboni cyane bikoreshwa cyane mu bikorwa bya electrochemical, cyane cyane mu kubika no guhindura ingufu nka bateri za redox flow, uturemangingo twa lisansi, na reactors za electrolytic. Bikorwa hakoreshejwe fibrous precursors za karuboni na grafitizing (ubusanzwe PAN-based cyangwa rayon-based felts), bigakora urusobe rw'imigozi ya karuboni rufite imiterere myiza y'amashanyarazi n'ubudahangarwa bw'imiti.

1. Imiterere n'Imiterere

Umugozi wa electrode ya grafiti ugizwe n'ibihumbi by'imigozi myiza ya karuboni ifatanye mu musarani utari uwo kuboha. Nyuma yo gukaraba (ubusanzwe hejuru ya 1000 °C) no gukaraba (ubusanzwe hejuru ya 2000 °C), ibikoresho birushaho kwiyongera:

• Ingufu nyinshi z'amashanyarazi
• Ubudahangarwa bw'ubushyuhe mu byuma bikoresha aside cyangwa alkaline
• Ubushyuhe buri hejuru ya 3000 °C mu bidukikije bidakora neza

Igumana imiterere yoroshye kandi irashobora gukuba ariko ihinduka idafite imiti kandi ikagira ingufu z'amashanyarazi.

2. Kuki ukoresha Felt muri Electrodes?

Bitandukanye n'amasahani akomeye ya grafiti, icyuma cya grafiti gitanga ubuso bunini bw'imbere n'uburyo bwo gukwirakwiza iyoni, bigatuma kiba cyiza cyane ku bijyanye n'imikorere y'amashanyarazi inyurwa n'ubushobozi bwo kohereza ibintu byinshi. Imiterere yacyo ifite umwobo ufunguye ituma electrolyte yinjira cyane, bigatuma habaho imikorere ya redox mu buryo bwose - atari ku buso gusa.

Ibyiza by'ingenzi:

• Ubuso burebure: Bikwiriye gukoreshwa mu gukoresha ubucucike bw'amashanyarazi menshi
• Ikoranabuhanga ryiza ryo guhuza amashanyarazi: Ikomeza gutembera kw'amazi mu bice bifunze
• Ubunini n'ubucucike bushobora guhindurwa: Yahinduwe kugira ngo ikoreshwe mu buryo bwihariye
• Yoroheje kandi yoroshye guhindura: Byoroshye gufata no gukora
• Ubushobozi bwo kwihanganira ubushyuhe: Ikora neza mu gihe ubushyuhe buri hejuru

3. Porogaramu zisanzwe

Electrode ya grafiti ikoreshwa cyane muri:

Bateri za Redox Flow (VRFB, IRFB, nibindi)

Ubuso bwayo bunini bushyigikira V²⁺/V³⁺ na VO²⁺/VO₂⁺ redox couples neza. Kuramba cyane no gutwara ibintu bituma iba nziza cyane mu gihe kirekire.

Utunyangingo twa lisansi

Mu miterere imwe n'imwe y'uturemangingo twa lisansi, icyuma cya grafiti gikora nk'igikoresho gikwirakwiza imyuka ifite imyenge cyangwa igikoresho gitwara katalyst.

Ibikoresho by'amashanyarazi / Ibikoresho by'amashanyarazi

Ama-electrode ya felt akoreshwa mu bikorwa bitandukanye bya electrochemical nko gutunganya amazi yanduye, gukora electro-synthesis, no gukora hydrogen.

Ubushakashatsi bwa Laboratwari

Bitewe n'uko ihindagurika, ihendutse, kandi yoroshye kuyitunganya, icyuma cya grafiti gikoreshwa cyane mu gupima igishushanyo mbonera no mu igerageza ryakozwe ku rugero rwo hejuru.

4. Ibipimo byo guhitamo

Mu guhitamo icyuma gikozwe muri grafiti (grafiti felt) gikoreshwa muri electrode, hari ibintu byinshi bigomba kwitabwaho:

5. Impinduka zisanzwe

Nubwo grafiti itavuwe yumva ko ikora neza, guhindura ubuso akenshi byongera imikorere y'amashanyarazi:

• Gukoresha ubushyuhe: Ishyiramo amatsinda arimo ogisijeni kugira ngo yongere ubushobozi bwo gutoha
• Uburyo bwo kuvura ogisijeni cyangwa plasma hakoreshejwe imiti: Yongera imbuga zikora kandi yongera igipimo cy'ibisubizo
• Gupakira ibikoresho bya "Catalyst": Oxyde z'icyuma (urugero, MnO₂, Pt, Ir) zishobora kongerwamo kugira ngo zinoze uburyo bwo gukora ibintu runaka
• Igipfukisho cya Graphene/nanocarbon: Yongera ubushobozi bwo gutwara ibintu no gukora neza mu buryo bwa mekanike

6. Ibintu by'ingenzi bigomba kwitabwaho mu ikoreshwa ry'ibintu mu buryo bufatika

• GukandaImyitwarire yumva ihinduka iyo umuntu ahanganye n'igitutu; ubushobozi bwo kuyobora no kwirinda gutemba bigomba kuringanizwa
• Ubwiza: Utwuma tw’icyuma dufite isuku nyinshi turakenewe mu buryo bworoshye kugira ngo hirindwe kwanduzwa
• Gukoresha: Ugomba kwirinda kwanduza amavuta, ivumbi, cyangwa uduce tw'icyuma; uturindantoki n'ahantu hatari ivumbi birasabwa
• Mbere yo kuvurwa: Gukaraba cyangwa gukaraba mbere y'igihe bishobora kuba ngombwa bitewe n'uko electrolyte ihuye

Electrode ya grafitisi ibikoresho gusa—ni igice cy’amashanyarazi akora cyane. Uruvange rwacyo rw’ubushobozi bwo gutwara ibintu, porosity, flexibility, no kudakoresha imiti bituma kiba amahitamo meza mu bikoresho bigezweho bya bateri, electrolyzers, na sisitemu zo guhindura ingufu mu rwego rwa laboratwari.

Waba urimo gukora bateri ya redox flow yo mu bwoko bukurikira cyangwa ugerageza uburyo bushya bwo gukorana na catalyst muri prototype ya fuel cell, grafiti felt itanga urubuga rushobora guhindurwa kandi rushobora kwaguka kugira ngo amashanyarazi akore neza.