ʻO ka hoʻomaka ʻana i ka hoʻomaʻamaʻa mua ʻana i ka huʻa nickel

ʻĀpana nikelaHe mea ia i hoʻohana ʻia no ka hana ʻana i nā electrodes pākaukau, a ʻo ke kaʻina hana o nā mea nickel foam maʻamau e like me kēia: ʻo ka polyurethane sponge i hoʻokō mua ʻia, a laila electrodeposited, a hope sintered.

Ma nā ʻanuʻu i luna, ʻo ka mālama conductive ka mea maʻamauka hoʻopili kemika, ka hoʻopili conductive adhesive, a me ka hoʻoheheʻe ʻanama nā ʻano ʻekolu; hiki i ka electrodeposition ke sulfate a i ʻole sulfamate nickel plating; ʻO ke kaʻina hana sintering e hoʻopau mua ʻia ma ka puhi ʻana o ka ea i ka sponge polyurethane, a laila hoʻemi a hoʻopaʻa ʻia ka ʻōhuhi ma lalo o kahi hau hoʻohaʻahaʻa hydrogen i ʻelua mau ʻanuʻu, kahi i hoʻopaʻa ʻia ai ka ea e puhi ana i ka sponge polyurethane i ka mahana o 300 a 700. °C. Hoʻopau ʻia ke kaʻina hana sintering ma ka puhi ʻana o ka ea i ka sponge polyurethane, a laila hoʻemi a hoʻopaʻa ʻia ka sponge polyurethane i loko o kahi ea hoʻemi hydrogen; Hana ʻia ka hana hoʻohaʻahaʻa ma lalo o ka hydrogen reduction ea ma kahi mahana o 800 a 1000 ° C no 30-60 mau minuke, a ʻo ka lewa hoʻohaʻahaʻa he ammonia decomposition gas, a ʻo ka nui o ke kinoea decomposition i pau i ka 0.8-1.2 L / g (kēlā me kēia gram. o ka nickel pono 0.8-1.2 lita o ke kinoea decomposition ammonia e pau ai)

Hoʻomaikaʻi ʻia ke ʻano hanaʻūhā nikela, ʻo ka ʻanuʻu e komo ai ka conductivization, electrodeposition a me ka sintering o kahi sponge polyurethane, i ʻike ʻia i kēlā ʻano sintering i ʻōlelo ʻia e pyrolyze a hoʻopaʻa pono i ka polyurethane foam i loko o kahi ea hoʻemi ma hope o ka electrodeposition, kahi e hoʻohaʻahaʻa ai ka lewa he ammonia decomposition gas, ka hoʻohaʻahaʻa ʻana i ka mahana. ʻO 400-1000 ° C., ʻo ka manawa hoʻemi he 30-60 mau minuke, a ʻo ka nui o ka hoʻohana kinoea decomposition he 0.4-0.8 L/g. (Pono kēlā me kēia gram o ka nickel e hoʻopau i ka 0.4-0.8 lita o ke kinoea decomposition ammonia.) ʻO ke kinoea decomposition ammonia he hui ia o ka nitrogen a me ka hydrogen, a ʻo ka ratio o ka nitrogen a me ka hydrogen he 1:3.

ʻO ka ʻenehana pane ʻana ma hope o ka electrodeposition oʻūhā nikelai loko o ka polyurethane sponge pololei i loko o ka hydrogen reduction lewa pyrolysis sintering, kahi o ka hana kalapona a me ka hydrogen, e hana ana i CH4, C2H6 a me nā hydrocarbons kinoea ʻē aʻe, ua lawa ke kaʻina hana gasification e wehe i ka graphite C i ka mea hoʻomaʻemaʻe kino porous.

Hoʻoponopono maikaʻi ia i nā hemahema i kēia manawa i ka ʻenehana o ka nickel foam i ke kaʻina sintering, e like me ka maʻalahi e haki, deformation arching, haʻahaʻa haʻahaʻa, kiʻekiʻe ka ikehu hoʻohana, nickel foam mechanical properties ʻaʻole paʻa.