Cov ntaub ntawv hlau ntxeem tau muaj ntau daim ntawv thov hauv cov pa tawm vim lawv cov khoom tshwj xeeb, xws li thaj chaw siab, porosity siab, thiab zoo txhua yam muaj zog. Cov khoom no ua rau lawv zoo tagnrho rau kev siv roj diffusion daim ntawv thov, qhov twg qhov kev hloov pauv ntawm cov pa roj yog qhov tseem ceeb.
Hauv gas diffusion electrodes (GDEs)
GDEs yog siv nyob rau hauv ntau yam electrochemical systems, xws li roj hlwb, electrolyzers, thiab roj teeb. Hauv GDE, cov khoom siv hlau ntxeem tau siv los ua cov qauv kev txhawb nqa rau cov electrocatalyst, uas pab txhawb cov tshuaj tiv thaiv ntawm cov roj thiab cov electrolyte.
Nyob rau hauv gas sib cais membranes
Cov ntaub ntawv hlau ntxeem tau kuj siv rau hauv cov pa sib cais membranes. Cov membranes no yog siv los cais cov roj sib txawv raws li lawv qhov loj thiab qhov hnyav molecular. Cov hlau ntxeem tau tso cai rau cov roj me me kom dhau mus thaum thaiv cov molecules loj.
Hauv gas sensors
Cov khoom siv hlau ntxeem tau tuaj yeem siv los ua cov khoom siv rau hauv cov pa sensors, qhov twg cov roj diffuses los ntawm cov qauv ntxeem tau thiab cuam tshuam nrog cov khoom siv, ua rau muaj kev hloov pauv hauv hluav taws xob lossis kho qhov muag.
Zuag qhia tag nrho, cov khoom tshwj xeeb ntawm cov khoom siv hlau ntxeem tau ua rau lawv muaj kev xaiv zoo rau ntau yam kev siv roj diffusion, suav nrog cov roj diffusion electrodes, roj sib cais membranes, thiab roj sensors.
Cov khoom ntxeem tau
Porous sensors
Txawm hais tias cov khoom siv hlau ntxeem tau muaj ntau yam zoo rau kev siv roj diffusion, kuj tseem muaj qee qhov teeb meem uas yuav tsum tau daws. Nov yog qee qhov kev sib tw tseem ceeb:
Corrosion: Cov khoom siv hlau ntxeem tau tuaj yeem raug corrosion hauv qee qhov chaw roj av. Corrosion tuaj yeem ua rau kev ua haujlwm ntawm cov khoom siv thiab txo nws txoj sia. Txhawm rau txo qhov no, cov txheej txheem tiv thaiv lossis kev kho saum npoo tuaj yeem siv rau cov khoom siv hlau ntxeem tau.
Fouling: Hauv qee qhov kev siv roj diffusion, cov khoom siv hlau ntxeem tau tuaj yeem ua fouled nrog cov kab mob, xws li plua plav, roj, lossis lwm yam khoom. Qhov no tuaj yeem txo qhov porosity thiab txo qhov ua tau zoo ntawm cov txheej txheem roj diffusion. Kev tu lossis tu yuav tsum tau ua kom tsis txhob muaj fouling.
Kev poob siab: Lub siab porosity ntawm cov khoom siv hlau ntxeem tau tuaj yeem ua rau lub siab poob siab thoob plaws cov khoom thaum cov roj ntws los ntawm nws. Qhov no tuaj yeem txo qhov kev ua tau zoo tag nrho ntawm lub kaw lus thiab tej zaum yuav xav tau kev ntsuas ntxiv, xws li kev siv lub tshuab compressor, kom tswj tau qhov kev xav tau txaus.
Manufacturing complexity: Cov txheej txheem tsim khoom rau cov khoom siv hlau ntxeem tau tuaj yeem ua haujlwm nyuaj thiab raug nqi, tshwj xeeb tshaj yog tias yuav tsum muaj qib siab. Qhov no tuaj yeem txwv qhov scalability thiab kev lag luam muaj txiaj ntsig ntawm qee qhov kev siv roj diffusion.
Kev xaiv cov khoom siv: Kev xaiv cov khoom siv hlau ntxeem tau yog qhov tseem ceeb rau kev ua tiav ntawm daim ntawv thov roj diffusion. Cov yam ntxwv xws li porosity, permeability, lub zog, thiab corrosion kuj yuav tsum tau ua tib zoo txiav txim siab los xyuas kom meej tias cov khoom tsim nyog rau daim ntawv thov tshwj xeeb.
Porous gas diffusion electrodes
Porous filtration tubes
