GDE ndiyo chidimbu chegasi diffusion electrode, zvinoreva kuti gasi diffusion electrode. Mukugadzira, iyo catalyst inoputirwa pagasi diffusion layer semutumbi unotsigira, uye ipapo GDE inopisa yakatsikirirwa kumativi ese eproton membrane munzira yekutsikirira inopisa kuita membrane electrode.
Iyi nzira iri nyore uye yakakura, asi ine zvipingamupinyi zviviri. Chekutanga, iyo yakagadzirirwa catalytic layer yakawedzera, ichida yakakwira Pt mutoro, uye chiyero chekushandisa chinokonzeresa chakaderera. Chechipiri, kushamwaridzana pakati pe catalytic layer uye proton membrane haisi pedyo zvakanyanya, zvichiita kuti kuwedzere kupikisa kushandiswa, uye kushanda kwese kwe membrane electrode haisi yakakwirira. Naizvozvo, iyo GDE membrane electrode yakabviswa zvachose.
Working principle:
Iyo inonzi gas distribution layer iri pakati pe electrode. Nekumanikidza kushoma, ma electrolyte anodzingwa kubva kune ino porous system. Kuyerera kudiki. kushorwa kunovimbisa kuti gasi rinogona kuyerera zvakasununguka mukati me electrode. Pamhepo yakakwira zvishoma, maelectrolyte ari mupore system anongovharirwa pachikamu chekushanda. Iyo yepamusoro pedenga pachayo ine maburi akanaka zvekuti gasi haigone kuyerera nema electrode ichipinda mu electrolyte, kunyangwe pakumanikidzwa kwepamusoro. Iyi electrode inogadzirwa nekupararira uye kunotevera sintering kana kupisa kupisa. Kugadzira multilayer electrodes, yakanaka-grained zvinhu zvinoparadzirwa mu mold uye yakatsetseka. Zvadaro, zvimwe zvinhu zvinoshandiswa mumatanho akawanda uye kumanikidzwa kunoshandiswa.
Nguva yekutumira: Feb-27-2023