Cobalt amatha kupulumutsa magalimoto a haidrojeni. Platinamu ndiyosowa komanso yokwera mtengo

Chifukwa chiyani magalimoto a hydrogen ndi osavomerezeka? Pazifukwa ziwiri zazikulu: malo odzaza mafutawa sakudziwikabe, ndipo m’maiko ena mulibe nkomwe. Kuonjezera apo, maselo amafuta amafuna kugwiritsa ntchito platinamu, yomwe ndi chinthu chamtengo wapatali komanso chosowa, chomwe chimakhudza mtengo womaliza wa magalimoto a FCEV. Choncho, asayansi akugwira ntchito kale kuchotsa platinamu ndi cobalt.

Cobalt amatha kupanga magalimoto a haidrojeni kutchuka

Zamkatimu

• Cobalt amatha kupanga magalimoto a haidrojeni kutchuka
  • Kafukufuku wa Cobalt amathandiza maselo amafuta ambiri

Cobalt ndi chinthu chomwe chili ndi zinthu zapadera. Amagwiritsidwa ntchito pochotsa mafuta m'mafuta oyeretsera mafuta (inde, inde, Magalimoto oyatsa amafunikanso cobalt kuyendetsa.), imagwiritsidwanso ntchito muukadaulo wamagetsi - komanso pazida zambiri zoyendetsedwa ndi batri - m'ma cell a lithiamu-ion. M'tsogolomu, izi zitha kuthandiza ma hydrogen fuel cell cars (FCEVs).

Monga mtsogoleri wa gulu la BMW R & D, Klaus Fröhlich, adanena kumayambiriro kwa 2020, magalimoto a haidrojeni sapezeka paliponse, chifukwa maselo amafuta ndi okwera mtengo kwambiri 10 kuposa kuyendetsa magetsi. Ndalama zambiri (50 peresenti ya mtengo wa selo) zimachokera ku kugwiritsa ntchito ma elekitirodi a platinamu, omwe amagwira ntchito ngati zopangira mafuta m'maselo, zomwe zimafulumizitsa kugwira ntchito kwa haidrojeni ndi mpweya.

Asayansi ku Pacific Northwest National Laboratory adaganiza zosintha ma elekitirodi a platinamu ndi cobaltmomwe maatomu achitsulo amaphatikizidwa ndi maatomu a nayitrogeni ndi a carbon. Dongosolo loterolo, momwe cobalt imachitikira m'magulu okonzedwa mwapadera, iyenera kukhala yamphamvu kanayi kuposa yachitsulo (gwero). Pamapeto pake, iyeneranso kukhala yotsika mtengo kuposa platinamu; pakusinthana, mtengo wa cobalt ndi pafupifupi 1 nthawi yotsika kuposa mtengo wa platinamu.

Kafukufuku wa Cobalt amathandiza maselo amafuta ambiri

Zinapezeka kuti reactivity ya sing'anga woteroyo ndi bwino kuposa catalysts ena omangidwa popanda platinamu kapena chitsulo. Zinali zothekanso kupeza kuti hydrogen peroxide (H2O2) yomwe imapangidwa panthawi ya okosijeni imayambitsa kuwola komanso kuchepa kwa chothandizira. Izi zinalola kuteteza maelekitirodi ndi kuonjezera mphamvu ya kapangidwe kake, zomwe zingatalikitse moyo wa maselo m'tsogolomu.

Moyo wapano wa cell mafuta opangidwa ndi platinamu akuti pafupifupi maola 6-8 zikwi ndi machitidwe osakhazikika, omwe amapereka kwa masiku 333 akugwira ntchito mosalekeza kapena mpaka zaka 11, kutengera ntchito maola 2 pa tsiku... Maselo amakhudzidwa kwambiri ndi katundu wosiyanasiyana ndi zochitika zomwe zimagwirizanitsidwa ndi kusowa kwa ntchito, chifukwa chake akatswiri ena amanena momveka bwino kuti sayenera kugwiritsidwa ntchito m'magalimoto.

Kusintha 2020/12/31, penyani. 16.06/XNUMX: Baibulo loyambirira la mawu oti "platinum membranes". Uku ndikulakwitsa koonekeratu. Pamwamba pa chimodzi mwa maelekitirodi ndi platinamu. Chithunzichi chikuwonetsa bwino chothandizira cha platinamu chomwe chili pansi pa diaphragm. Tikupepesa chifukwa chosakhazikika pokonza mawuwo.

Kutsegula kujambula: fanizo, cell cell (c) Bosch / Powercell

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