Taw qhia rau Cov Khoom Siv Carbon Hard

Hard carbon: Nws yog ib hom carbon uas nyuaj rau graphitize txawm nyob rau ntawm qhov kub siab tshaj 2500 degree, muaj npe tom qab nws siab mechanical hardness. Daim ntawv ntawm cov roj carbon tawv tuaj yeem yog kheej kheej, linear, lossis ntxeem tau. Cov pa roj carbon monoxide feem ntau yog cov khoom siv thermosetting, yog li lawv feem ntau muaj peev xwm tswj tau cov morphology ntawm tus neeg ua ntej thaum lub sij hawm cov txheej txheem synthesis. Tom qab high-temperature carbonization, luv graphene los xij (tseem hu ua graphite domains lossis pseudo graphite) hauv cov pa roj carbon monoxide yog txheej txheem luv luv, tsim ib pawg finite ntawm 2 mus rau 6 txheej, nrog ntev txog 40 Å. .
Muaj ntau lub zog carbon biomass precursors
1. Txiv maj phaub
Txiv maj phaub plhaub yog cov tawv nqaij sab hauv ntawm cov txiv maj phaub, nrog ib qho kev ntxhib los mos, thiab feem ntau yog siv rau hauv kev tsim cov hlab ntsha, khoom siv tes ua, thiab cov pa roj carbon activated. Txiv maj phaub plhaub raws li cov pa roj carbon monoxide muaj cov qauv tsim cov pore zoo, cov ntsiab lus tsis tshua muaj tshauv, thiab H / C rau O / C piv, ua rau nws cov khoom siv tsis zoo electrode. Tam sim no, nws cov kev lag luam kev lag luam yog ntxov thiab nws cov kev ua tau zoo. Cov chaw tsim khoom tseem ceeb ntawm cov txiv maj phaub yog Sri Lanka, Malaysia, Is Nrias teb, thiab Philippines. Muaj qee qhov kev cog qoob loo me me hauv thaj chaw xws li Hainan thiab Taiwan hauv Suav teb, nrog Hainan Xeev suav txog ntau dua 99% ntawm thaj chaw cog qoob loo. Tsis tas li ntawd, piv rau cov txiv maj phaub ua rau thaj chaw xws li Philippines thiab Indonesia, Hainan Xeev hauv Suav teb muaj qhov chaw siab dua, lub hnub ci tsis muaj zog thiab siv zog, cov txiv maj phaub nyias nyias, qis hardness, thiab tsis yog cov khoom siv rau kev tsim cov txiv maj phaub plhaub carbonization cov ntaub ntawv. Txiv maj phaub plhaub nyob rau sab hnub tuaj Asia feem ntau yog tsim los ntawm kev lag luam.
2. Cov hmoov txhuv nplej siab
Cov hmoov txhuv nplej siab yog ib qho ntawm cov khoom siv biomaterials, uas muaj nyob rau hauv ntau yam nroj tsuag. Raws li ib tug raug polysaccharide, starch muaj ib tug yooj yim muaj pes tsawg leeg, siab carbon ntsiab lus, thiab tus nqi qis. Nyob rau tib lub sijhawm, piv rau lwm cov biomass precursors, cov hmoov txhuv nplej siab nthuav tawm cov duab kheej kheej kheej kheej, ua rau nws muaj kev sib tw ua ntej cov khoom siv rau kev npaj cov carbon nyuaj. Starch, raws li cov khoom lag luam, muaj cov khoom siv hauv tsev txaus thiab purity siab. Starch yog cov organic siab molecular carbohydrate nrog siab purity. Thaum cov organic polymer tebchaw yog siv los ua cov khoom siv tawv, lawv tuaj yeem ua ke nrog cov txheej txheem tshwj xeeb kom tau txais cov ntaub ntawv nyuaj nrog cov morphologies tshwj xeeb. Cov txheej txheem synthesis feem ntau nyuaj, tab sis nws tuaj yeem zam impurities thiab xyuas kom muaj kev sib xws.
3. Mos xyoob
Moso xyoob yog cov nroj tsuag ntawm tsev neeg Poaceae, teej tug mus rau genus Corydalis. Nws muaj qhov tuab thiab nrawm nrawm, thiab tuaj yeem loj hlob ruaj khov tom qab 5-8 xyoo. Nws yog hom xyoob muaj txiaj ntsig zoo thiab siv dav hauv kev tsim kho, kev lag luam ntawv, thiab lwm yam. Tuam Tshoj muaj ntau xyoob hav zoov cov peev txheej. Tuam Tshoj yog lub teb chaws ntawm xyoob thiab muaj ntau ntau lawm. Cov txiaj ntsig ntawm cuaj lub teb chaws cov ntaub ntawv pov thawj hav zoov qhia tau hais tias thaj chaw xyoob hav zoov hauv Suav teb yog 6.4116 lab hectares, ntawm cov xyoob hav zoov suav txog 72.96%. Moso xyoob yog feem ntau faib rau hauv Qinling Han River Basin thiab thaj tsam yav qab teb ntawm Yangtze River Basin hauv Suav teb.
4. Straw
Straw, raws li kev ua liaj ua teb pov tseg, muaj ntau hauv cov peev txheej. Tuam Tshoj yog lub teb chaws ua liaj ua teb loj, thiab cov qoob loo tau txais txiaj ntsig zoo xws li nplej, pob kws, thiab nplej muab cov khoom siv biomass straw ntau ntau txhua xyoo. Hauv xyoo 2020, kev tsim cov qoob loo hauv tsev yog 792 lab tons, ntawm 667 lab tons tuaj yeem khaws tau los ua cov peev txheej. Straw, raws li kev ua liaj ua teb pov tseg, tau ntev tau siv los ua cua sov lub zog, tsiaj txhu noj, thiab cov chiv organic. Ntawm lawv, kev siv chiv suav txog 51.2% xyoo 2020.