Ka ikehu hydrogen a me ka ikehu hou
ʻO ka ikehu Hydrogen kahi kumu ikehu maʻemaʻe e kū mai ana i loaʻa nā pōmaikaʻi e like me ke kiʻekiʻe o ka ikehu kiʻekiʻe, ʻole pollution, a me ka hoʻohou.Manaʻo ʻia he kuhikuhi nui no ka hoʻomohala ʻana i ka ikehu e hiki mai ana.Eia nō naʻe, ke kū nei ka ikehu hydrogen i nā pilikia he nui i ka mālama ʻana a me ka lawe ʻana.He mea koʻikoʻi ka pā kahe bipolar plate no ka ikehu hydrogen i ka hoʻomohala ʻana i ka ikehu hydrogen a he hana koʻikoʻi.
He mea koʻikoʻi ka hoʻohana ʻana i ka electrolysis o ka wai e hana ai i ka hydrogen ka bipolar plate flow channel no ka ikehu hydrogen.Hoʻoheheʻe ka hopena electrode i ka wai i hydrogen a me ka oxygen, a hoʻohana ʻia ka hydrogen i hana ʻia no ka hana ʻana i ka mana o ka wahie, ʻoiai e hoʻokuʻu ʻia ka oxygen i ka lewa.Ma kēia kaʻina hana, ʻo ka hana o ka pā kahawai kahe e hoʻokaʻawale i nā reactants ma waena o nā electrodes, pale iā lākou mai ka hui ʻana me kekahi, a hōʻoia i ka pono a me ka paʻa o ka hopena.
Eia nō naʻe, ʻo ka liʻiliʻi molekala a me ke kiʻekiʻe reactivity o ke kinoea hydrogen e paʻakikī i ka lawe ʻana a mālama ʻia ma o nā mīkini wai maʻamau.No laila, pono nā ala pololei e hōʻoia i ka lawe pono ʻana o ke kinoea hydrogen.ʻO nā papa bipolar no ka ikehu hydrogen i hana ʻia e ka photochemical etching he kiʻekiʻe ka pololei a me ke kūlike, e hōʻoia ana i ka holo mālie o ke kinoea hydrogen i ke kahawai, pēlā e hoʻomaikaʻi ai i ka hoʻohana ʻana a me ka pono o ke kinoea hydrogen.
ʻO ka Photochemical etching kahi ʻenehana hana pololei loa e hoʻohana ana i ka corrosion e hana i nā ʻōnaehana kahawai micro-level ma nā ʻili metala ma lalo o ka mālamalama.Loaʻa i kēia ʻano hana nā mea maikaʻi o ke kiʻekiʻe kiʻekiʻe, kūpono, a me nā kumu kūʻai haʻahaʻa, a hiki ke hana i nā kahawai kahe bipolar plate liʻiliʻi loa e hōʻoia i ka holo mālie a me ka hoʻohana pono ʻana i ke kinoea hydrogen.
Ma waho aʻe o ka ʻenehana hana ʻenehana kikoʻī, pono nā papa bipolar no ka ikehu hydrogen e loaʻa i ke kūpaʻa corrosion kiʻekiʻe, ka ikaika, a me ke kūpaʻa.I kēia manawa, hoʻohana nui ʻia kekahi mau mea hou e like me ka carbon nanotubes a me ka metal-organic frameworks i ka hana ʻana i nā kahawai kahe bipolar plate no ka ikehu hydrogen e hoʻomaikaʻi i kā lākou hana a me ka hilinaʻi.
I ka hoʻomohala ʻana o ka ikehu hydrogen e hiki mai ana, e hoʻomau ʻia ka hana nui o nā kahe kahe o ka pā bipolar no ka ikehu hydrogen.Me ka hoʻolaha ʻana a me ka hoʻohana ʻana i ka ikehu hydrogen, e hoʻomau ka piʻi ʻana o ke koi no nā kahe kahe bipolar plate no ka ikehu hydrogen.No laila, pono e kālele ka noiʻi e hiki mai ana i ka ʻimi ʻana i nā ʻenehana hana hou aʻe a me nā mea hana e hoʻokō ai i ka pololei a me ka hilinaʻi kiʻekiʻe.
