Maselo a Mafuta a Formic acid

2026-04-21

Asidi ya Formic Maselo a Mafuta
Formic acid imagwiritsidwanso ntchito ngati mafuta mu ma cell amafuta a formic acid (DFAFCs). Mu ma cell amafuta awa, formic acid imagwira ntchito ngati mafuta, imadutsa mu oxidation reaction pa anode kuti itulutse ma elekitironi ndikupanga mphamvu zamagetsi. Ma DFAFC amapereka zabwino monga kuchuluka kwa mphamvu komanso kutentha kochepa, zomwe zimapangitsa kuti zikhale zogwiritsidwa ntchito bwino muzipangizo zamagetsi zazing'ono komanso magwero amphamvu onyamulika.

Zibo Anhao Chemical Co., Ltd. – Wogulitsa Acid Wapamwamba Kwambiri

Zokhudza Zibo Anhao Chemical Co., Ltd.

Ubwino wa Ma cell a Mafuta a Formic Acid (DFAFCs)
Ma cell amafuta a Direct formic acid (DFAFCs) amadziwika kuti ndi ukadaulo wodalirika kwambiri wosinthira mphamvu zamagetsi, womwe umapereka kuphatikiza kwapadera kwa chitetezo chapamwamba, magwiridwe antchito abwino kwambiri, komanso magwiridwe antchito omwe amathetsa zopinga zazikulu za njira zina zochokera ku hydrogen ndi methanol.
Monga mafuta amadzimadzi pa kutentha kwa chipinda ndi kuthamanga kwa mpweya, formic acid (HCOOH) imachotsa kufunikira kwa kupsinjika kwakukulu kapena kusungira cryogenic, kuchepetsa kwambiri ndalama zogwirira ntchito komanso zoopsa zachitetezo zokhudzana ndi hydrogen handling. Poyerekeza ndi ma cell amafuta a methanol mwachindunji (DMFCs), ma DFAFC amasonyeza kuchuluka kochepa kwa mafuta kudzera mu proton exchange membranes (PEMs). Izi zimachitika chifukwa cha kugwedezeka kwa electrostatic pakati pa anion ya formate (HCOO⁻) ndi magulu a sulfonic acid mu nembanemba, zomwe zimapangitsa kuti mafuta azikhala ndi mphamvu zambiri (mpaka 20 mol/L) kuti awonjezere kuchuluka kwa mphamvu ya volumetric (4.4 kWh/dm³) popanda kutayika kwa mphamvu.
Malinga ndi zamagetsi, ma DFAFC ali ndi mphamvu yowonjezereka ya theoretical open-circuit (1.48 V) kuposa ma hydrogen PEMFC (1.23 V) ndi ma DMFC (1.20 V), zomwe zimapangitsa kuti mphamvu ituluke kwambiri. Molekyulu ya kaboni imodzi ilibe ma CC bond, zomwe zimathandiza kuti ma oxidation kinetics apitirire komanso kupanga pang'ono kwa ma CO intermediates omwe amapha ma platinum catalysts. Izi zimapangitsa kuti pakhale magwiridwe antchito okhazikika komanso a nthawi yayitali ndipo nthawi zambiri amalola kugwiritsa ntchito ma catalyst okhala ndi palladium otsika mtengo.
Kuphatikiza apo, formic acid ndi yoopsa pang'ono (yovomerezedwa ndi FDA ngati chowonjezera cha chakudya) ndipo siiyaka kwambiri kuposa methanol, zomwe zimapangitsa kuti njira zoyendera, zosungira, komanso chitetezo cha ogwiritsa ntchito zikhale zosavuta. Chofunika kwambiri, formic acid imatha kupangidwa mokhazikika kudzera mu CO₂ electroreduction, ndikupanga closed carbon loop ndikupangitsa DFAFCs kukhala ukadaulo wofunikira kwambiri pakukwaniritsa carbon neutrality mu zamagetsi onyamulika, magetsi ang'onoang'ono, ndi ntchito zakutali zakunja kwa gridi.