He aha nā waiwai i manaʻo ʻia e kūpono i ka fiber Titanium no ka hoʻohana ʻana i nā pūnae ahi a me nā electrolyzers?

Manaʻo ʻia ka fiber Titanium ua puka mai ma ke ʻano he mea koʻikoʻi i nā ʻenehana ikehu holomua, ʻo ia hoʻi i loko o nā wahie a me nā electrolyzers i hana i ka iwi kuamoʻo o ka hoʻokele waiwai hydrogen. Hoʻohui kēia mea kānana kupanaha i ka porosity kūʻokoʻa, ke kūpaʻa corrosion koʻikoʻi, a me ke kūpaʻa wela ʻoi aku ka maikaʻi, i mea kūpono no nā wahi koi i loaʻa i nā ʻōnaehana ikehu electrochemical. Hāʻawi ke ʻano kūʻokoʻa o ka Titanium fiber felt i ke koena kūpono o ka ikaika mechanical a me ka permeability e pono ai no ka hoʻopuehu kinoea maikaʻi loa, ka lawe ʻana i ka wai, a me nā hopena electrochemical i loko o nā wahie a me nā electrolyzers. ʻO kona hiki ke kū i nā kūlana hana paʻakikī aʻo ka mālama ʻana i ka hana maʻamau ua hoʻonoho i ka titanium fiber i manaʻo ʻia he mea koʻikoʻi i ka hoʻomohala ʻana i nā hopena ikehu maʻemaʻe ʻoi aku ka maikaʻi a paʻa.

Nā Pono Mea Kūikawā o Titanium Fiber Felt no nā noi uila

Kū'ē Kū'ē Kū'ēʻole i nā Kaiapuni Electrolyte Aggressive

Hōʻike ka Titanium fiber i ke kūpaʻa kūʻokoʻa i ka corrosion, ʻo ia hoʻi kāna waiwai waiwai nui no ka hoʻohana ʻana i ka wahie a me nā noi electrolyzer. I loko o kēia mau ʻenehana electrochemical, ʻike mau ʻia ka mea i nā kaiapuni electrolyte koʻikoʻi e hoʻohaʻahaʻa koke i nā mea maʻamau. ʻO ke kū ʻana o ka corrosion o ka titanium ke kumu mai kona hiki ke hana i kahi papa oxide passive ma luna o kona ʻili, kahi mea e pale ai i ka hoʻouka kaua ʻana. Hoʻōla hou kēia kiʻi ʻoniʻoni hoʻōla iā ia iho i ka wā e pōʻino ai, e hāʻawi ana i ka pale mau i ka wā lawelawe o ka mea. I ka proton exchange membrane (PEM) electrolyzers, titanium fiber manaʻo pono e kū i nā kūlana waikawa nui ma ka anode kahi e ulu ai ka oxygen. ʻO ke kūpaʻa kūʻokoʻa o ka mea i nā waikawa oxidizing e lilo ia i hoʻokahi o nā koho liʻiliʻi no kēia kaiapuni paʻakikī. Pēlā nō, i loko o nā pūnaeau wahie oxide paʻa e hana ana i nā mahana kiʻekiʻe, ua manaʻo ʻo titanium fiber e mālama i kona kūpaʻa i kahi e pōʻino koke ai nā mea ʻē aʻe. ʻO ka paʻa o ka mea ma kahi ākea pH ākea (0-14) e hōʻoia i ka hana pono i nā ʻōnaehana electrolyte like ʻole me ka hoʻohaumia ʻana i ke kaiapuni pane. ʻAʻole kēia e hoʻolōʻihi i ke ola o ka wahie a me nā electrolyzers, akā pale pū i ka hoʻokuʻu ʻana o nā ion metala i hiki ke hoʻomake i nā catalysts a i ʻole nā ​​mea membrane, e mālama ana i ka pono o ka ʻōnaehana ma luna o nā tausani o nā hola hana.

ʻOi aku ka paʻa wela wela no nā hana wela kiʻekiʻe

ʻO ke kūpaʻa wela kūikawā o manaʻo ʻia ka fiber titanium hana ia i mea kūpono loa no ke kiʻekiʻe-mehana wahie a me ka electrolyzer noi. Me ka pae wela o ka hana a hiki i 600°C (1,112°F), mālama ka titanium fiber i kona kūpaʻa a me nā waiwai mechanical ma lalo o nā kūlana e hoʻololi ai i nā mea ʻē aʻe. He mea koʻikoʻi kēia ʻano wela wela i nā pūnaeau wahie oxide paʻa (SOFCs) a me nā electrolyzers wela wela kahi i ʻoi aku ka nui o nā mahana hana ma mua o 500°C. ʻAʻole like me nā mea polymeric e hoʻohaʻahaʻa a hoʻoheheʻe ʻia a me nā mea i hoʻopaʻa ʻia i ke kalapona i hoʻoheheʻe ʻia i nā mahana kiʻekiʻe, ua manaʻo ʻo titanium fiber e hōʻike ana i ka liʻiliʻi o ka hoʻonui wela a mālama i ka porosity a me ka permeability ma waena o kāna pae wela hana. Mālama kēia ʻano kūpaʻa i ka luhi holo kaʻa wela a hōʻoia i ka hāʻawi ʻana i ke kinoea hilinaʻi a me nā hana hōʻiliʻili o kēia manawa i ka loli ʻana o ka mahana i ka wā o ka hoʻomaka ʻana, pani ʻana, a me nā hana ma hope o ka ukana. ʻO nā hiʻohiʻona hoʻoili wela o ka mea i hāʻawi pū i ka hāʻawi ʻana i ka wela like ʻole i loko o nā cell electrochemical, e pale ana i ka hoʻokumu ʻana o nā piko wela e hiki ke hōʻino i nā hui electrode membrane. I nā noi e koi ana i ka holo paikikala wela, ua ʻike ka titanium fiber i ke kūpaʻa haʻalulu wela maikaʻi loa e pale ai i ka haki ʻana a i ʻole ka hoʻololi ʻana e hōʻemi i ka pono o ka ʻōnaehana. ʻO kēia hui pū ʻana o ka hiki ke wela kiʻekiʻe a me ke kūpaʻa wela e hoʻonui nui i ka puka makani hana no nā ʻōnaehana electrochemical kiʻekiʻe, e ʻae ai i ka hoʻoulu ʻana i ka uila i loko o nā wahie a hoʻomaikaʻi i nā helu hana hydrogen i nā electrolyzers e hana ana i nā wela kiʻekiʻe.

Hoʻonui ʻia ka Porosity a me ka Permeability no ka hoʻonui ʻia ʻana o ka halihali lehulehu

ʻO ka porosity a me ka permeability o ka fiber titanium i manaʻo ʻia he kuleana koʻikoʻi i kāna hana kūikawā i nā wahie a me nā electrolyzers. Me ka porosity hiki ke hoʻololi ʻia mai ka 20% a i ka 90%, hiki ke hoʻopili pololei ʻia ka fiber titanium e hoʻokō i nā koi o ka halihali lehulehu ma waena o nā ʻōnaehana electrochemical like ʻole. Hoʻomaʻamaʻa kēia ʻano porous i ka hoʻoheheʻe ʻana i ke kinoea a me ka lawe wai, nā kaʻina hana pono i loko o nā wahie a me nā electrolyzers. I loko o nā pūnaewele wahie, ua manaʻo ʻia ka titanium fiber ma ke ʻano he papa diffusion gas maikaʻi loa, e hōʻoiaʻiʻo ana i ka hāʻawi like ʻana o nā kinoea reactant i nā wahi catalyst aʻo ka wehe ʻana i ka wai huahana. Mālama ka pore pūnaewele i ke komo ʻana o ke kinoea i nā wahi pane ʻoiai ma lalo o nā kūlana i kahe ʻia, e pale ana i ka polarization noʻonoʻo e kaupalena ʻia ka hana kelepona. No nā noi electrolyzer, kākoʻo ka permeability kūpono o ka mea i ka lawe ʻana i ka bubble a me ka wehe ʻana o ke kinoea hydrogen a me ka oxygen mai nā papa electrode, e hōʻemi ana i nā hopena blanketing gas e hiki ke pale i ka pono. Hoʻokumu ka ʻupena fiber ʻekolu-dimensional i nā ala haʻahaʻa e hoʻoikaika i ke kahe kūpikipiki, e hoʻonui ana i nā coefficients hoʻoili nui ma ka interface electrode-electrolyte. ʻO kēia ka hoʻomaikaʻi ʻana i ka hiki ke lawe nui ʻia e unuhi pololei i ka palena kiʻekiʻe o nā density o kēia manawa i nā ʻōnaehana hana. Hoʻohui ʻia, ʻo ke kūʻē ʻana o ka mea i ka pore clogging a me ka fouling e hōʻoia i ka hana paʻa lōʻihi me ka piʻi ʻole o ke kūʻē o ka halihali i ka manawa. Me ka nui o ka pore mai ka 1 a 100 microns, hiki ke hana ʻia ka titanium fiber e hoʻokō i ke kaulike kūpono ma waena o ke kaomi capillary a me ke kahe kahe ʻana no nā noi electrochemical kikoʻī, e lilo ia i mea maʻalahi ma waena o nā ʻenehana wahie a me nā ʻenehana electrolyzer.

Nā Pōmaikaʻi Hana o Titanium Fiber Felt i nā Pūnaehana Pūnaewele

Hoʻonui i ka hōʻiliʻili o kēia manawa a me ka hoʻohaʻahaʻa ʻana i ka hoʻopili ʻana

Hāʻawi ka Titanium fiber i nā waiwai conductivity uila e hoʻomaikaʻi nui i ka hōʻiliʻili ʻana i kēia manawa i nā ʻōnaehana wahie. ʻO ka ʻoihana ʻekolu-dimensional o nā fiber titanium i hoʻopili ʻia e hana i nā ala hoʻokele he nui e hōʻemi i ka pale uila i loko o ka mea. He mea waiwai nui kēia conductivity intrinsic i loko o nā keena wahie PEM kahi e hoʻololi pono ai ka hoʻololi electron mai nā wahi pane i nā kaapuni waho e pili pono i ka pono o ka ʻōnaehana holoʻokoʻa. ʻO ke ʻano compressible o ka fiber titanium e hōʻoia i ka pilina maikaʻi me nā ʻāpana pili, e hōʻemi ana i ke kūpaʻa pili interfacial e hoʻopaʻa mau i ka hana i nā hoʻolālā kahua kahe. Ke hoʻokomo ʻia i loko o ka waihona wahie, ua manaʻo ka fiber titanium e hana i nā helu hoʻopili he nui me ka papa catalyst a me ka pā bipolar, e hana ana i nā ala uila e hoʻomau i ka hoʻopili ʻana inā paha i hoʻopaʻapaʻa ʻia kekahi mau wahi pili ma muli o ke kaʻa uila a i ʻole ke kaumaha mechanical. Hiki ke hoʻonui ʻia nā hiʻohiʻona o ka ʻili ma o nā ʻano lapaʻau like ʻole, me ka uhi gula a i ʻole platinum, e hōʻemi i ka hoʻoheheʻe ʻana o ka ʻili a hoʻomaikaʻi hou i ka conductivity uila. I loko o nā ʻōnaehana wahie hoʻokō kiʻekiʻe, ʻike ʻia ka fiber titanium me nā waiwai conductivity i hōʻike ʻia a hiki i ka 20% haʻahaʻa haʻahaʻa haʻahaʻa kūʻokoʻa i hoʻohālikelike ʻia i nā mea hōʻiliʻili maʻamau. ʻO kēia hana uila i hoʻomaikaʻi ʻia e unuhi pololei i ka ʻoi aku ka maikaʻi o ka uila a me ka nui o ka mana. Hoʻohui ʻia, ʻo ka hāʻawi like ʻana i kēia manawa i hoʻomaʻamaʻa ʻia e ka titanium fiber felt's homogeneous structure e pale i ka hoʻokumu ʻana o nā wahi kiʻekiʻe o kēia manawa i hiki ke hoʻolalelale i ka degradation catalyst. ʻO ka waiwai uila paʻa o ka waiwai ma luna o nā tausani o nā hola hana e hōʻoia i ka hana maʻamau i loko o ke ola lawelawe o ka wahie, ʻo ka manaʻo o ka fiber titanium he koho kūpono no nā noi e koi ana i ka hilinaʻi kiʻekiʻe a me ka lōʻihi.

Hoʻomaikaʻi i ka hoʻokele wai a me ka hoʻokaʻawale pae

Ua ʻoi aku ka maikaʻi o ka Titanium fiber i ka hiki ke hoʻokele wai, e kamaʻilio ana i kekahi o nā mea paʻakikī loa o ka hana ʻana i ka wahie. Hoʻokumu ʻia ke ʻano kūʻokoʻa o ka mea i kahi kaulike kūpono o nā waiwai hydrophobic a hydrophilic i hiki ke hoʻohālikelike ʻia i nā koi hoʻokele wai. I loko o nā keena wahie PEM, he mea koʻikoʻi ke koena wai kūpono—ʻo ka liʻiliʻi o ka wai e hoʻoheheʻe ʻia ka membrane a ʻo ka nui o ka wai e alakaʻi i ke kahe ʻana e ālai ana i nā ala lawe kinoea. Manaʻo ʻia ka fiber Titanium'O ka ho'olālā pore hiki ke ho'ololi 'ia no ka 'enekinia pololei o nā kaha kaha pu'e capillary e ho'oma'ama'a i ka hā'awi 'ana i ka wai i loko o ke keena. Hoʻokumu ka ʻupena fiber pili i nā kaila capillary e lawe pono i ka wai wai mai nā papa catalyst ʻoiai e mālama pono ana i ka haʻahaʻa no ka hydration membrane kūpono. Mālama kēia mana hoʻokele wai kaulike i ka maloʻo ʻana a me ke kahe ʻana i nā kūlana e kaupalena ʻia ai ka hana kelepona ma nā kūlana hana like ʻole. ʻO ke kūpaʻa kūʻokoʻa o ka mea i ka wai-induced corrosion e hōʻoiaʻiʻo i ka hana paʻa i mua o ka wai condensed, ʻoiai i loko o nā tausani o nā pōʻai pulu / maloʻo i ʻike ʻia i nā noi kaʻa. I nā ʻano hana condensing, ʻike ʻia ka titanium fiber i ka hiki ke hoʻoneʻe wai i ka wai i hoʻohālikelike ʻia me nā papa hoʻoheheʻe kalapona pepa kalapona maʻamau, me ka 30% kiʻekiʻe o ka lawe ʻana i ka wai ma lalo o nā kūlana hana like. Hiki ke hoʻonui ʻia ka hoʻolālā pore o ka mea ma o nā kaʻina hana hoʻomalu e hana i nā puʻupuʻu bimodal pore e kākoʻo like i ka lawe ʻana i nā kinoea a me nā hana hoʻokele wai wai. Hiki i kēia mana hoʻokele wai maʻalahi i nā ʻōnaehana wahie e hoʻohana ana i ka titanium fiber i manaʻo ʻia e hana ma waena o nā pae haʻahaʻa ākea a me ka hoʻohaʻahaʻa ʻana i ka loli o ke kūlana hana, hoʻonui nui i ka paʻa o ka ʻōnaehana a me ka hilinaʻi.

ʻO ka lōʻihi o ka mīkini a me ka paʻa ʻana o ka dimensional ma lalo o ke kaomi ʻana

ʻO nā waiwai mechanical kūikawā o ka fiber titanium i manaʻo nui ʻia i ka hana ʻana o ka cell cell a me ka lōʻihi. Me ka ikaika tensile kiʻekiʻe a me nā hiʻohiʻona hoʻihoʻi elastic maikaʻi loa, ua manaʻo ʻo titanium fiber e mālama i nā waiwai hana koʻikoʻi ma lalo o nā mana compressive nui i loaʻa i loko o nā pahu wahie. Ke hoʻopili ʻia ma waena o nā pā bipolar, hōʻike ka mea i ka deformation kaohi e hana ai i ka pilina interfacial maikaʻi loa me ka ʻole o ke komo ʻana i loko o nā papa pili a i ʻole nā ​​kahawai kahe. Hoʻopili ʻia kēia ʻano hoʻoemi ma o ke koho ʻana i ke anawaena fiber, nā ʻāpana sintering, a me ka nui o ka manaʻo nui, maʻamau mai 0.8 a 1.2 g/cm³. ʻAʻole like me ka media diffusion e pili ana i ke kalapona i hiki ke ʻike i ka hoʻohaʻahaʻa nui ma lalo o ke kaʻa uila, ua manaʻo ʻo titanium fiber e mālama i kona kūpaʻa ʻana ma luna o nā kaukani o nā pōʻai hoʻomaha hoʻomaha, e pale ana i ka pala o ka hana i ʻike mau ʻia i ka hana ʻana o ka wahie. ʻO ke kūʻē ʻana o ka mea i ka deformation creep e hōʻoia i ka mālama ʻia ʻana o nā hoʻonohonoho kōmike mua i ka wā lōʻihi o ka hana ʻana, e mālama ana i nā kaomi pili koʻikoʻi e pili ana i ka conductivity uila a me ke kūpaʻa interfacial. I nā kūlana hana liʻiliʻi kahi e hana ai nā gradients thermal i ke koʻikoʻi mechanical hou, ʻo ka titanium fiber i manaʻo ʻia ke ʻano kūpaʻa e pale ai i ka hoʻokumu ʻana o nā āpau a i ʻole nā ​​​​ʻāpana hoʻoemi nui e hana ʻole ai i ka hana like ʻole ma waena o ka wahi hana. ʻO ka lōʻihi o ka mīkini o ka mea e unuhi pololei i ka hana paʻa ʻana o nā cell-to-cell i nā pūʻulu nui a hōʻemi i ka hōʻemi ʻana o ka hana i ka manawa. No nā noi kaʻa e pili ana i nā pōʻai hoʻomaka pinepine a me ka haʻalulu, ʻo ke kūpaʻa ʻana o ka fiber titanium i ka pau ʻole o ka luhi a me ka hoʻokumu ʻana o nā mea e pale ai i ka haumia o nā kahawai kahe a me nā papa catalyst. ʻO kēia kūpaʻa mechanical ʻoi aku ka manaʻo o ka fiber titanium i mea waiwai nui i ka lawe ʻana a me nā noi lawe lima kahi e pili pono ai ka ikaika mechanical i ka hilinaʻi o ka ʻōnaehana a me nā manawa lawelawe.

ʻO ke kuleana koʻikoʻi o ka Titanium Fiber Felt i ka ʻenehana Electrolyzer

ʻOi aku ka maikaʻi ma ke ʻano he Porous Transport Layers ma PEM Electrolyzers

Hana ʻia ka Titanium fiber ma ke ʻano he porous transport layer (PTL) i ka proton exchange membrane (PEM) electrolyzers, e pane ana i nā pilikia kūʻokoʻa i hōʻike ʻia e kēia noi koi. Hāʻawi ka ʻenehana i hoʻonohonoho pono ʻia i ke koena kūpono o nā waiwai e pono ai no ka lawe ʻana i ka wai kūpono i nā wahi pane, ka wehe ʻana i nā huahana kinoea, a me ka hāʻawi ʻana i ka uila. I loko o ke kaiapuni o ka oxygen evolution reaction (OER) ma ka anode, ua mana'o ka fiber titanium i ke kū'ē kū'oko'a i nā kūlana oxidizing ki'eki'e (me nā mea hiki ke 'oi aku ma mua o 2V vs. RHE) e lilo ia i mea li'ili'i no ka hana lō'ihi. ʻO ka hoʻolālā pore hoʻomalu ʻia o ka mea, me ka nui o ka pore maʻamau mai ka 1 a hiki i ka 100 microns, e hoʻomaʻamaʻa i nā kaʻina lawe nui nui e koʻikoʻi i ka hana electrolyzer. Pono e lawe maikaʻi ʻia ka wai i nā wahi catalyst aʻo ke kinoea oxygen i hana ʻia e pono e hoʻoneʻe koke ʻia e pale i nā hopena blanketing e hoʻonui ai i ke kūpaʻa cell. ʻO ka pūnaewele pore pili o ka titanium fiber manaʻo e hiki ke hoʻokuʻu koke i ka ʻea a me ka lawe ʻana, e hōʻemi nui ana i nā manaʻo overpotentials e hoʻopaʻa ai i ka nui o kēia manawa. Ua hōʻike ʻia nā haʻawina i manaʻo ʻia ka fiber titanium i manaʻo ʻia e hiki i nā PTL ke hiki ke hana i nā density o kēia manawa ma mua o 3 A/cm² ʻoiai e mālama ana i ka pono uila kūpono. Hoʻololi pololei kēia mana kiʻekiʻe i kēia manawa i ka hoʻonui ʻana i ka nui o ka hana hydrogen i kēlā me kēia ʻāpana, e hōʻemi ana i ka wāwae o ka ʻōnaehana a me nā kumukūʻai no ka hana hydrogen ʻenehana. ʻO ka hoʻolālā like ʻole o ka mea e hōʻoia i ka hāʻawi like ʻana i kēia manawa ma waena o ka wahi hana, e pale ana i ka hoʻokumu ʻia ʻana o nā wahi kiʻekiʻe o kēia manawa e hoʻolalelale i ka catalyst a me ka degradation membrane. Hoʻohui ʻia, hāʻawi ʻia nā waiwai mechanical o ka titanium fiber felt i ka pilina interfacial me nā papa catalyst ma lalo o nā kaomi hana ʻano like ʻole, e mālama ana i ke kūpaʻa haʻahaʻa haʻahaʻa i loko o ke kaʻa uila maʻamau i ka hana electrolyzer ʻoihana. ʻO kēia mau mea maikaʻi i hui pū ʻia i manaʻo ʻia he mea koʻikoʻi ka fiber titanium i ka holomua ʻana i ka ʻenehana electrolyzer PEM i ke kiʻekiʻe kiʻekiʻe a me nā ana lōʻihi e pono ai no ka hana ʻana o ka hydrogen green green.

ʻO ke kū'ēʻana i ka hoʻoheheʻeʻiaʻana o ka hydrogen ma nā kaiapuni Cathode

Manaʻo ʻia ka fiber Titanium hōʻike i ke kūʻē kūʻē i ka hydrogen embrittlement, kahi waiwai koʻikoʻi no nā mea i hoʻohana ʻia i loko o ke kaiapuni cathode o nā electrolyzers kahi e ulu ai ka hydrogen. ʻO ka hoʻoheheʻe ʻana o ka hydrogen—ke kaʻina hana e hoʻoheheʻe ʻia ai nā ʻātoma hydrogen i loko o nā lattices metala, e hōʻemi ana i ka ductility a alakaʻi i ka hiki ʻole o ka mechanical premature-he pilikia nui no nā mea metala he nui i nā ʻōnaehana hana hydrogen. ʻO nā waiwai metallurgical kūʻokoʻa o ka titanium, ʻoiai ke hana ʻia i loko o ka fiber feel form, e kūʻē loa ia i kēia ʻano hana hoʻohaʻahaʻa. ʻO ka hoʻolālā fiber maikaʻi o ka mea, me nā anawaena maʻamau mai ka 20 a hiki i ka 40 microns, kaupalena i nā ala hoʻoheheʻe hydrogen a hoʻemi i ka neʻe ʻana o ka hydrogen i paʻa i loko o ka matrix metala. Hoʻohui ʻia, ʻo ka papa oxide paʻa i hana maoli ʻia ma luna o ka titanium surfaces e hana ma ke ʻano he pale i ka hydrogen permeation, e hoʻonui hou i ke kū'ē i ka embrittlement. I loko o nā cathodes electrolyzer PEM e hana ana i nā mānoanoa kiʻekiʻe o kēia manawa, kahi e ulu ai ka nui o ka hydrogen partial pressure, ua manaʻo ka fiber titanium e mālama i kona kūpaʻa me ka ʻole o ka hana ʻana a i ʻole nā ​​​​mea hana e hoʻololi i ka hana ʻōnaehana. ʻO kēia kū'ē i ka hydrogen-induced degradation e hōʻoia i ka porosity, permeability, a me ka conductivity uila i loko o nā tausani o nā hola hana, ʻoiai ma lalo o nā kūlana haʻahaʻa e hoʻoulu hou i nā pōʻai hydrogen absorption-desorption. ʻO ke kūpaʻa o ka mea i loko o nā kaiapuni waiwai nui o ka hydrogen ke pale aku i ka hoʻokuʻu ʻia ʻana o nā mea hoʻohaumia i hiki ke hoʻomake i nā mea catalyst makamae a i ʻole e hōʻino i nā ʻāpana membrane palupalu. No nā ʻōnaehana electrolyzer pressurized e hana ana i ka hydrogen ma 30 bar a ʻoi aʻe paha, ʻoi aku ka waiwai o ka titanium fiber i ke kūʻē ʻana i ka hydrogen embrittlement, e hoʻopau ana i kahi ʻano hemahema maʻamau e pili ana i nā mea ʻē aʻe. ʻO kēia kūpaʻa kūʻokoʻa i nā kaiapuni hydrogen i manaʻo ʻia ka fiber titanium mai Shaanxi Filture New Material Co., Ltd. he koho kūpono no nā ʻōnaehana electrolyzer o ka hanauna e hiki mai ana i hoʻolālā ʻia no ka hana kiʻekiʻe kiʻekiʻe a me ka lōʻihi o ke ola lawelawe, e kākoʻo ana i ka ulu ʻana o ka noi no nā ʻenehana hana hydrogen ʻōmaʻomaʻo.

Kākoʻo Layer Catalyst a me ka Hoʻonui Hana

Hāʻawi ʻo Titanium fiber i kahi substrate kūikawā no ka noi catalyst i loko o nā wahie a me nā electrolyzers, e hoʻonui ana i ka hana catalytic ma o nā hana hoʻohui. ʻO ka ʻāpana ili kiʻekiʻe o ka mea, me ka nui o nā kuʻuna fiber a me nā hiʻohiʻona o ka ʻili, hana i kahi kikowaena hoʻonui ʻia no ka hoʻopaʻa ʻana o ka catalyst, e hoʻonui nui ana i ka helu o nā wahi hana i hiki ke loaʻa i kēlā me kēia leo. Ke hoʻohana ʻia ma o nā ʻenehana hoʻopiʻi holomua e like me ka electrodeposition a i ʻole ka hoʻoheheʻe ʻana i ka mahu, hoʻopili ikaika nā catalysts i ka titanium substrate, e hana ana i kahi pānaʻi kākoʻo catalyst paʻa e kūʻē i ka hoʻohaʻahaʻa ʻana ma o ka hana kaʻa. ʻO ka conductivity inherent o ka titanium fiber manaʻo e hōʻoia i ka hoʻololi pono ʻana o ka electron i a mai nā ʻāpana catalyst, e hōʻemi ana i nā overpotentials hoʻāla a hoʻonui i nā kinetics. I nā anodes electrolyzer PEM, kahi e hoʻohana mau ʻia ai nā catalysts e pili ana i ka iridium no ka hoʻololi ʻana o ka oxygen, ʻike ʻia ka paʻa o ka fiber titanium i nā kūlana oxidizing nui e pale ai i ka hoʻohaʻahaʻa ʻana o ka substrate e hōʻino ai i ka pono o ka papa catalyst. ʻO ka hana ʻekolu-dimensional o ka mea e hiki ai ke hana i nā puʻupuʻu gradient catalyst e hoʻohana pono i ka hoʻohana ʻana i ka metala makamae, me nā ukana kiʻekiʻe ma nā pilina koʻikoʻi a hoʻemi ʻia nā ukana ma nā wahi nui. Hiki i kēia ala ke hōʻemi i nā koi metala makamae holoʻokoʻa me ka mālama ʻana i nā ana hana. Hoʻohui, hiki i ka titanium substrate ke komo i nā pilina catalytic ma o nā mīkini e like me nā pilina metala-kākoʻo ikaika (SMSI) e hoʻololi pono i nā waiwai uila catalyst. Ua hōʻike ʻia ka noiʻi e hiki i ka titanium dioxide i hoʻokumu ʻia ma luna o ka fiber surfaces ke hoʻoikaika i ka paʻa catalyst ma o ka hoʻopaʻa ʻana i nā ʻāpana a me ka pale ʻana i nā hana agglomeration e hōʻemi i ka ʻili o ka ʻili i ka manawa. No nā hoʻolālā electrolyzer kiʻekiʻe e hoʻohana ana i nā anodes dimensionally stable (DSA), hāʻawi ka titanium fiber i kahi substrate kūpono no ka hoʻoheheʻe ʻana o ka metala oxide catalyst, e hana ana i nā hui electrode ikaika a paʻa. ʻO ka porosity maʻamau o ka mea, mai ka 20% a i ka 90%, e ʻae i ka optimization o ka ʻōnaehana catalyst layer no nā hopena electrochemical kikoʻī, nā mea kaulike e like me ka nui o ka pae hana, ka nui o ka halihali ʻana, a me ke kūpaʻa mechanical. ʻO kēia mau mana kākoʻo catalyst e manaʻo i ka fiber titanium he ʻenehana hiki ke hoʻohana i nā ʻōnaehana electrochemical ʻoi aku ka maikaʻi a me ka hoʻokele waiwai.

Panina

Manaʻo ʻia ka fiber Titanium ʻO ia ka mea e hōʻike ai i kahi mea holomua no nā wahie a me nā electrolyzers, e hui pū ana i ke kūpaʻa corrosion kūʻokoʻa, ke kūpaʻa wela, a me ka porosity maikaʻi. ʻO kāna mau waiwai kūʻokoʻa e hoʻoponopono i nā pilikia koʻikoʻi i nā ʻōnaehana ikehu electrochemical, hiki ke ʻoi aku ka maikaʻi, hoʻonui i ka lōʻihi, a me ka hoʻomaikaʻi ʻana i ka hana ma lalo o nā kūlana hana koʻikoʻi. Ke hoʻomau nei nā ʻenehana hydrogen i ka neʻe ʻana o ka honua i ka ikehu hoʻomau, manaʻo ʻia ka titanium fiber e lilo i mea koʻikoʻi i nā hoʻolālā o nā hanauna e hiki mai ana.

Mākaukau e hoʻomaikaʻi i kāu hana ʻōnaehana electrochemical me ka manaʻo titanium fiber alakaʻi i ka ʻoihana? Hāʻawi ʻo Shaanxi Filture New Material Co., Ltd. i nā hoʻonā i hoʻohālikelike ʻia i kāu koi noi kikoʻī. Hiki i kā mākou hui ʻenekinia ke kōkua i ka hoʻopaʻa ʻana i nā kikoʻī kikoʻī no kāu hoʻolālā ʻōnaehana, e hōʻoia i ka maikaʻi loa a me ka lōʻihi. E kelepona iā mākou i kēia lā ma sam.young@sintered-metal.com e kūkākūkā pehea e hiki ai i kā mākou fiber titanium kiʻekiʻe ke hoʻololi i kāu wahie a i ʻole ka ʻenehana electrolyzer.

E hoʻomaopopo '

1. Johnson, RT & Williams, PD (2023). Nā Mea Hana Kiʻekiʻe no nā noi Electrolyzer PEM: He Manaʻo Kūʻē. Ka Nupepa International of Hydrogen Energy, 48(3), 567-589.

2. Chen, X., Li, Y., & Thompson, SC (2022). ʻO nā Layers Transport Porous no nā Proton Exchange Membrane Electrolyzers: Nā mea waiwai, nā waiwai a me ka hana. Nūpepa o nā Punawai Mana, 515, 230-247.

3. Nakamura, T., Shirai, H., & Martinez, A. (2023). Nā Mea Hana Hoʻokumu ʻia ʻo Titanium no nā mea hoʻohana kiʻekiʻe kiʻekiʻe. Electrochimica Acta, 442, 142-158.

4. Wang, L., Zhang, Q., & Anderson, MR (2022). Hana Electrochemical o Titanium Fiber Materials in Hydrogen Production Systems. Nūpepa o ka Hui Electrochemical, 169(7), 074512.

5. Schmidt, V., Rodriguez, J., & Kumar, P. (2024). ʻO nā holomua ma nā ʻāpana lawe porous no ka wai Electrolysis: Mai nā mea waiwai i ka hoʻolālā ʻōnaehana. Holomua i loko o ka 'Epekema Puhi a me ka Puhi, 96, 101052.

6. Garcia-Martinez, H., Patel, S., & Yamamoto, K. (2023). Nā Pono Mea Pono a me nā Mechanism Hoʻohaʻahaʻa o nā ʻāpana Titanium ma nā Kaiapuni Electrolyzer PEM. International Journal of Energy Research, 47(12), 8954-8972.