Fuel cell imhando yesimba rekushandura mudziyo, unogona kushandura iyo electrochemical simba rehuni kuita simba remagetsi. Inonzi fuel cell nekuti imagetsi emagetsi ekugadzira magetsi pamwe nebhatiri. Sero rinoshandisa hydrogen sehuni ihydrogen fuel cell. Hydrogen fuel cell inogona kunzwisiswa sekuita kwemvura electrolysis muhydrogen uye oxygen. Maitiro ekuita kwehydrogen fuel cell yakachena uye inoshanda. Hydrogen mafuta sero haina kuganhurirwa ne42% yekupisa kweCarnot cycle inoshandiswa muinjini yechinyakare mota, uye kushanda kwayo kunogona kusvika kupfuura makumi matanhatu%.
Kusiyana nemaroketi, hydrogen mafuta maseru anogadzira kinetic simba kuburikidza nekuita kwechisimba kwehydrogen uye kupisa kweokisijeni, uye kusunungura iyo Gibbs yemahara simba muhydrogen kuburikidza nemidziyo inokonzeresa. Gibbs yemahara simba isimba remagetsi rinosanganisira entropy uye mamwe dzidziso. The kushanda musimboti wehydrogen mafuta sero ndechokuti haidhirojeni yakaora kuita haidrojeni ayoni (kureva mapurotoni) uye maerekitironi kuburikidza kachidziviriro (Platinum) ari positive electrode yesero. Maion eHydrogen anopfuura nepakati peproton exchange membrane kuenda kune negative electrode uye oxygen inoita kuti ive mvura nekudziya, uye maerekitironi anofambirana anoyerera kubva pachakanaka electrode kuenda kune negative electrode kuburikidza nekunze kwedunhu kuti abudise simba remagetsi.
Mumafuta cell stack, maitiro ehydrogen uye okisijeni anoitwa, uye kune kubhadharisa kutamiswa mukuita, zvichikonzera ikozvino. Panguva imwecheteyo, hydrogen inopindirana neokisijeni kuti ibudise mvura.
Sedziva rekuita makemikari, yakakosha tekinoroji musimboti wemafuta cell stack ndeye "proton exchange membrane". Mativi maviri emufirimu ari pedyo nekatalyst layer yekuora hydrogen kuita maion anochajiwa. Nekuda kwekuti molecule rehydrogen idiki, maerekitironi anotakura hydrogen anogona kukukurwa achienda kune mhiri kuburikidza nemaburi madiki emufirimu. Zvisinei, mukuita kwehydrogen kutakura maerekitironi achipfuura nemumaburi efirimu, maerekitironi anobviswa kubva mumamorekuru, zvichisiya chete mapurotoni ehydrogen anochajiwa kuti asvike kune mumwe mugumo kuburikidza nefirimu.
Hydrogen protonsvanokwezvwa kune electrode kune rumwe rutivi rwefirimu uye kusanganisa neokisijeni mamorekuru. Mahwendefa e electrode kumativi ose efirimu akatsemura haidrojeni kuita ayoni ehydrogen yakanaka uye maerekitironi, uye anotsemura okisijeni kuita maatomu eokisijeni kuti atore maerekitironi uye aashandure kuita ayoni eokisijeni (negative magetsi). Maerekitironi anoumba ikozvino pakati pemapuleti e electrode, uye maion maviri ehydrogen uye ayoni imwe okisijeni anobatana kuita mvura, inova iyo chete "marara" mukuita maitiro. Muchidimbu, hurongwa hwese hwekushanda ndiyo nzira yekugadzira magetsi. Nekufambira mberi kweiyo oxidation reaction, maerekitironi anoramba achitamiswa kuti aumbe yazvino inodiwa kutyaira mota.
Nguva yekutumira: Feb-12-2022