Siv platinum-coated porous titanium daim hlau los yog titanium felts li gas diffusion khaubncaws sab nraud povtseg (GDLs) yog tsuas yog tsav los ntawm cov kev xav tau ntawm electrochemical systems xws li PEM roj hlwb, PEM dej electrolyzers, thiab lwm yam hydrogen/oxygen electrochemical li.
Lub ntsiab zoo ntawm kev siv platinum coated ntxeem tau titanium daim hlau los yog titanium xav rau roj diffusion txheej yog raws li nram no:
1. Superior corrosion kuj
- Titanium muaj zog heev rau corrosion nyob rau hauv acidic thiab oxidizing ib puag ncig, tsis zoo li cov pa roj carbon GDLs uas degrade los yog oxidize nyob rau hauv siab muaj peev xwm.
- Qhov no ua rau nws tsim nyog rau kev ua haujlwm ntev hauv cov xwm txheej hnyav, tshwj xeeb tshaj yog nyob rau sab anode ntawm PEM electrolyzers.
2. Stable ntxeem tau qauv
- Porous titanium daim hlau los yog felts muab lub zog mechanically, interconnected network ntawm pores.
- Cov qauv no tso cai rau cov pa roj sib txawv, cov kua dej / roj npuas tshem tawm, thiab tswj kev ncaj ncees txawm tias nyob hauv qhov sib txawv siab.
3. Lub luag haujlwm ntawm platinum txheej
- Kev txhim kho kev ua tau zoo: Ntshiab titanium tsim cov txheej txheem oxide passive (TiO₂), uas ua rau muaj kev cuam tshuam ntawm kev sib tshuam. Ib txheej platinum nyias txo qis kev tiv thaiv kev tiv thaiv.
- Catalytic kev ua: Platinum ua haujlwm raws li electrocatalyst, txhim kho hydrogen evolution (HER), oxygen evolution (OER), thiab txo cov pa oxygen (ORR) cov tshuaj tiv thaiv.
- Durability: Platinum txheej tiv thaiv titanium substrate thiab ua kom ruaj khov electrochemical kev ua tau zoo dhau sijhawm.
4. Kev ua tau zoo thiab kev sib koom ua ke
- Cov ntaub ntawv titanium ntxeem tau tuaj yeem txiav, welded, lossis sib sau ua ke rau hauv cov chav loj dua, ua rau lawv hloov tau rau ntau pawg tsim.
- Lawv lub zog ua kom muaj kev sib koom ua ke rau hauv ob qho tib si roj cell stacks thiab electrolyzer pawg.
