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Akwụkwọ a na-enyocha ahịa carbon na-arụ ọrụ ugbu a, na-eduzi nyocha miri emi nke akụrụngwa nke carbon na-arụ ọrụ, na-ewebata usoro njirimara nke pore, ụzọ mmepụta, ihe na-emetụta ihe na ọganihu ngwa nke carbon na-arụ ọrụ, na nyochaa nsonaazụ nyocha nke carbon arụ ọrụ. teknụzụ njikarịcha ihe owuwu pore, na-achọ ịkwalite carbon arụ ọrụ iji rụọ ọrụ ka ukwuu n'itinye teknụzụ akwụkwọ ndụ akwụkwọ ndụ na obere carbon.
Nkwadebe nke carbon arụ ọrụ
N'ikwu okwu n'ozuzu, a na-ekewa nkwadebe nke carbon na-arụ ọrụ na nkebi abụọ: carbonization na activation
Usoro carbonization
Carbonization na-ezo aka na usoro ikpo ọkụ nke raw coal na okpomọkụ dị elu n'okpuru nchebe nke gas inert iji mebie ihe na-agbanwe agbanwe ma nweta ngwaahịa carbonized etiti. Carbonization nwere ike nweta ihe mgbaru ọsọ a na-atụ anya ya site n'ịgbanwe usoro usoro. Nnyocha egosiwo na okpomọkụ ịgbalite bụ isi usoro usoro na-emetụta njirimara carbonization. Jie Qiang et al. mụọ mmetụta nke carbonization kpo oku ọnụego na arụmọrụ nke carbon na-arụ ọrụ n'ime ọkụ muffle wee chọpụta na ọnụ ọgụgụ dị ala na-enyere aka melite mkpụrụ nke carbonized ihe ma na-emepụta ihe dị elu.
Usoro ịgbalite
Carbonization nwere ike ime ka akụrụngwa mepụta microcrystalline Ọdịdị nke yiri graphite ma mepụta ihe owuwu bụ isi. Otú ọ dị, a na-emegharị pores ndị a ma ọ bụ na-egbochi ma mechie ya site na ihe ndị ọzọ, na-eme ka ọ bụrụ obere ebe dị n'elu ma na-achọ ka ọ rụọ ọrụ ọzọ. Nkwalite bụ usoro nke ime ka usoro pore nke ngwaahịa carbonized dịkwuo mma, nke a na-emekarị site na mmeghachi omume kemịkalụ n'etiti onye na-arụ ọrụ na akụrụngwa: ọ nwere ike ịkwalite nhazi nke microcrystalline porous.
Nkwalite na-agabiga usoro atọ n'usoro ime ka oghere nke ihe ahụ dịkwuo mma:
(1) Imeghe pores mbụ mechiri emechi (site na pores);
(2) Ịbawanye pores mbụ (mgbasa pore);
(3) Ịmepụta pores ọhụrụ (ike okike);
A naghị eme mmetụta atọ a naanị, mana ha na-eme n'otu oge na n'otu oge. N'ikwu okwu n'ozuzu, site na pores na pore kere eke na-eme ka ọnụ ọgụgụ nke pores dịkwuo elu, karịsịa micropores, nke bara uru maka nkwadebe nke ihe ndị na-emepụta ihe na porosity dị elu na nnukwu ebe a kapịrị ọnụ, ebe mgbasawanye pore ga-eme ka pores na-ejikọta na jikọọ. , na-atụgharị micropores n'ime oghere buru ibu. Ya mere, iji nweta ihe carbon carbon na-arụ ọrụ na oghere ndị mepere emepe na nnukwu ebe dị elu, ọ dị mkpa iji zere imebiga ihe ókè. Ụzọ mgba ọkụ carbon a na-ejikarị arụ ọrụ gụnyere usoro kemịkalụ, usoro anụ ahụ na usoro physicochemical.
Usoro ịgbalite kemịkalụ
Usoro ịgbalite kemịkalụ na-ezo aka na usoro ịgbakwunye reagents kemịkalụ na akụrụngwa, wee kpoo ha site na iwebata gas na-echebe dị ka N2 na Ar na ọkụ ọkụ ka carbonize ma rụọ ọrụ n'otu oge ahụ. Ndị na-eme ihe ndị a na-ejikarị eme ihe bụ NaOH, KOH na H3P04. Usoro ịgbalite kemịkalụ nwere uru nke obere ọkụ ọkụ na mkpụrụ dị elu, mana ọ nwekwara nsogbu dị ka nnukwu corrosion, ihe isi ike n'iwepu reagents elu yana mmetọ gburugburu ebe obibi siri ike.
Usoro ịgbalite anụ ahụ
Usoro ịgbalite anụ ahụ na-ezo aka na carbonizing akụrụngwa ozugbo n'ime ọkụ, wee meghachi omume na gas dị ka CO2 na H20 ewepụtara na okpomọkụ dị elu iji nweta ebumnuche nke ịba ụba pores na ịgbasa pores, mana usoro ịgbalite anụ ahụ enweghị njikwa nke pore adịghị mma. nhazi. N'ime ha, a na-eji CO2 eme ihe n'ọtụtụ ebe na nkwadebe nke carbon arụ ọrụ n'ihi na ọ dị ọcha, dị mfe ịnweta na ọnụ ala. Jiri carbonized aki oyibo shei dị ka akụrụngwa ma rụọ ọrụ ya na CO2 iji kwadebe carbon arụ ọrụ na mepụtara micropores, na a kpọmkwem elu ebe na ngụkọta pore olu nke 1653m2·g-1 na 0.1045cm3·g-1, n'otu n'otu. Arụmọrụ ahụ ruru ọkọlọtọ ojiji nke carbon arụ ọrụ maka capacitors okpukpu abụọ.
rụọ ọrụ loquat nkume na CO2 iji kwadebe ibu arụ ọrụ carbon, mgbe ebighị na 1100 ℃ maka 30 nkeji, kpọmkwem n'elu ebe na ngụkọta pore olu ruru 3500m2 · g-1 na 1.84cm3 · g-1, karị. Jiri CO2 rụọ ọrụ nke abụọ na carbon aki oyibo na-arụ ọrụ. Mgbe arụ ọrụ ahụ gasịrị, a na-ebelata micropores nke ngwaahịa emechara, ụda micropore mụbara site na 0.21 cm3 · g-1 ruo 0.27 cm3 · g-1, ebe a kapịrị ọnụ na-abawanye site na 627.22 m2 · g-1 ruo 822.71 m2 · g-1. , na ikike mgbasa ozi nke phenol mụbara site na 23.77%.
Ndị ọkà mmụta ndị ọzọ amụwo ihe ndị bụ isi na-achịkwa usoro ịgbalite CO2. Mohammad et al. [21] chọpụtara na okpomọkụ bụ isi ihe na-emetụta mgbe CO2 na-arụ ọrụ sawdust rọba. Ebe dị n'elu a kapịrị ọnụ, ụda pore na microporosity nke ngwaahịa emechara na-ebu ụzọ mụbaa wee belata site na mmụba okpomọkụ. Cheng Song et al. [22] jiri usoro nzaghachi elu mee nyocha iji nyochaa usoro ịgbalite CO2 nke shells macadamia nut. Nsonaazụ gosiri na okpomọkụ ịgbalite na oge ịgbalite nwere mmetụta kachasị na mmepe nke micropores carbon arụ ọrụ.
Oge nzipu: Ọgọst-27-2024