Ntau cov ntaub ntawv R&D cov neeg ua haujlwm tau hnov qab thaum lawv pom cov lus hais rau ib leeg -walled lossis semiconducting carbon nanotubes thaum thov cov qauv ntawm cov khoom siv. Ob leeg yog cov hmoov dub, yog li vim li cas ntau -cov pa roj carbon nanotubes raug nqi tsuas yog ob peb lub kaum os RMB ib kilogram, thaum siab -zoo ib leeg-walled lossis semiconducting carbon nanotubes tuaj yeem raug nqi ntau txhiab lossis kaum txhiab RMB ib gram? Vim li cas siab - zoo carbon nanotubes (ib zaug -walled / semiconducting) thiaj li kim?
1. Ib leeg-Walled vs. Multi-Walled: Tib Carbon Nanotubes, Pua pua-Tseem Nqe Sib txawv
Tus nqi ntawm ib qho -walled carbon nanotubes (SWCNTs) feem ntau yog ntau tshaj 100 npaug ntawm ntau-walled carbon nanotubes (MWCNTs). Cov kab ntau ntau-cov phab ntsa phab ntsa raug nqi 60,000-500,000 RMB/ton, thaum ib leeg-walled raj tuaj yeem ncav cuag 6 txog 20 lab RMB/ton.
Qhov no txhais li cas? Ib kilogram siab -zoo ib leeg-walled carbon nanotube hmoov muag rau 6,000-20,000 RMB - roughly sib npaug rau tus nqi ntawm tsev neeg nruab nrab lub tsheb. Tsis xav tias nws yog hu ua "dub kub" nyob rau hauv lub ntiaj teb no cov ntaub ntawv.
| Sib piv Dimension | Ntau-Walled Carbon Nanotubes (MWCNT) | Tib -Walled Carbon Nanotubes (SWCNT) |
|---|---|---|
| Tube Dia | 7-100 nm | 1-2 nm |
| Muag Nqe | 100,000-200,000 RMB/ton | 6,000,000-20,000,000 RMB/ton |
| Conductive Efficiency | Yuav tsum tau 0.5% + ntxiv | Tsawg li 0.03% tuaj yeem ua tiav cov txiaj ntsig tseem ceeb |
| Kev tso npe thov | Industrial workhorse, tus nqi -effectiveness priority | Huab tais ntawm nanomaterials, qhov kawg kev ua tau zoo |
2. Tus nqi tuaj qhov twg? Peb "Nyiaj-Kub" txuas
Lub ntuj - tus nqi siab ntawm ib leeg - cov pa roj carbon nanotubes yog los ntawm kev sib tshooj peb npaug ntawm "kev npaj nyuaj, sib cais nyuaj, thiab muaj peev xwm tsim tau tsawg." Txhua qhov txuas yuav tsum muaj kev siv nyiaj ntau heev thiab cov cuab yeej siv.
2.1 Kev Npaj: Atomic-Level "Precision Control"
Kev ua tau zoo ntawm carbon nanotubes nyob ntawm lawv chirality (rolling angle) thiab txoj kab uas hla. Txoj kab uas hla ntawm ib qho - cov pa roj carbon nanotubes yog 1-2 nanometers xwb. Kev loj hlob zoo li cov raj nyias ntawm cov catalysts yuav tsum muaj kev tswj xyuas qhov kub thiab txias, cov pa roj carbon qhov chaw ntws, thiab qhov sib piv catalyst.
Txawm hais tias tam sim no CVD txoj kev (tshuaj lom vapor deposition) tuaj yeem siv rau kev tsim khoom, cov khoom sib xyaw ua ke inevitably muaj cov khoom sib xyaw ntawm cov hlau thiab semiconducting carbon nanotubes. Hauv lwm lo lus, txoj kev loj hlob tsis muaj kev ntxub ntxaug - ob hom loj hlob ua ke, thiab nws tsis tuaj yeem "tsim tsuas yog hom koj xav tau."
Los ntawm tus nqi tsim qauv, tus nqi raw khoom suav txog 40-60% ntawm tag nrho cov nqi tsim khoom carbon nanotube. Ib leeg- cov phab ntsa phab ntsa muaj cov kev cai nruj dua rau cov pa roj carbon purity thiab catalysts, nrog rau cov khoom siv raw cov nqi ntau dua li cov raj ntau phab ntsa.
2.2 Sib cais thiab Purification: Xaiv "Golden taum" los ntawm "Tsev"
Qhov no yog qhov txuas uas ua rau feem ntau rau "khoom kim heev" ntawm ib leeg -cov pa roj carbon nanotubes. Rau kev tsim cov khoom siv hluav taws xob xws li transistors, semiconducting ib leeg -cov pa roj carbon nanotubes yuav tsum tau siv - cov raj hlau yuav rhuav tshem cov yam ntxwv ntawm cov transistors.
Tab sis qhov teeb meem yog qhov ua tau zoo sib cais semiconducting thiab metallic carbon nanotubes los ntawm cov khoom sib xyaw tseem yog lub ntiaj teb - kev sib tw hauv chav kawm. Cov txheej txheem muaj xws li qhov ntom ntom gradient centrifugation, electrophoretic sib cais, thiab kev xaiv ua haujlwm. Cov txheej txheem no yog cumbersome nrog tsawg tawm los, los yog tsis tshua muaj nqi thiab nyuaj rau scale.
Lub teb chaws -theem carbon nanotube luam tawm TFT qhov project qhia tau hais tias tom qab cov txheej txheem purification nyuaj, semiconducting carbon nanotubes nrog purity ntau dua 99.997% tuaj yeem npaj tau - tab sis ua tiav qib ntawm purity no los ntawm tus nqi siab heev ntawm cov txheej txheem complexity thiab lub sij hawm peev.
2.3 Kev Lag Luam Kev Lag Luam: Qee tus neeg ua si sib koom ua ke
Scarcity ua rau tus nqi nce. Tam sim no, OCSiAl ib leeg tuav tau kwv yees li 90% ntawm lub ntiaj teb ib leeg -phab ntsa cov pa roj carbon nanotube kev ua lag luam, nrog rau cov peev txheej tsim muaj txog li 100 tons. Hauv tsev, Tianneng Technology tab tom txhim kho kev tsim kho ntawm 150 tons ntawm lub peev xwm ntau lawm.
Ntawm qhov kev thov sab, lub ntiaj teb ib leeg -walled carbon nanotube kev ua lag luam tau nthuav dav sai ntawm qhov kev loj hlob txhua xyoo ntawm 49.5%. Cov khoom siv -xav tsis txaus siab ntxiv txhawb nqa tus nqi siab.
3. Vim li cas nws thiaj li "Kim" tseem muaj nqis? Kev ua tau zoo yog kab hauv qab
Lub ultra- tus nqi siab ntawm ib qho - cov pa roj carbon nanotubes yog kev txhawb nqa los ntawm lawv qhov kev ua tau zoo tshaj plaws, cov khoom siv hluav taws xob, thiab thermal conductivity piv rau ntau- cov phab ntsa phab ntsa.
Seb tus nqi siab los tsis yog nyob ntawm "tus nqi-effectiveness." Muaj peev xwm npaum li cas yog ib qho - cov pa roj carbon nanotubes?
| Performance Indicator | Tib -Walled Carbon Nanotubes (SWCNT) | Ntau-Walled Carbon Nanotubes (MWCNT) |
|---|---|---|
| Elastic Modulus | 1000-3000 GPa | 300-1000 GPa |
| Tensile zog | 50-100 GPa | 10-50 GPa |
| Thermal conductivity | 3000-6000 W/(m·K) | 2000-3000 W/(m·K) |
| Yam tsawg kawg nkaus Conductive Additive | 0.01% | 0.5% |
Kev siv roj teeb lithium ua piv txwv: Hauv LFP cathodes, ntau- cov pa roj carbon nanotubes phab ntsa xav tau 0.9% ntxiv kom ua tiav qhov ntim ntawm 13.80 Ω·cm. Ib leeg-walled carbon nanotubes yuav tsum tsuas yog 0.03% (1/30 ntawm MWCNT) kom ua tiav qhov qis dua ntawm 4.77 Ω·cm.
Qhov sib txawv tseem tshaj tawm hauv silicon anode systems: MWCNTs xav tau 3% ntxiv rau qhov kev tiv thaiv ntawm 0.78 Ω·cm; SWCNTs tsuas xav tau 0.3% (1/10), txo cov resistivity rau 0.75 Ω·cm.
Qhov no txhais tau tias: txawm hais tias chav tsev nqi ntawm SWCNTs siab, qhov kev siv nyiaj tsawg heev. Hauv high- cov qauv roj teeb kawg, tus nqi tag nrho yuav tsis tas yuav siab dua li siv MWCNTs.
4. Shandong Tanfeng Cov Khoom Siv Tshiab: Tshawb nrhiav thaj chaw ntawm High-Quality SWCNTs
Shandong Tanfeng Tshiab Khoom Technology Co., Ltd. yog nquag txhawb lub zos ntawm siab - zoo carbon nanotubes. Nws cov khoom TF series npog ib qho -walled/multi-walled carbon nanotubes nrog purity Ntau dua lossis sib npaug li 98%, sawv cev rau lub zog tseem ceeb hauv kev rhuav tshem "siab- nqi monopoly."
Lub hauv paus yog vim li cas rau tus nqi siab yog cov txheej txheem txheej txheem. Ua txhaum txoj cai tswj hwm yuav tsum muaj kev hloov pauv hauv tsev - raws nraim li cas Shandong Tanfeng New Material Technology Co., Ltd. tab tom ua.
Shandong Tanfeng Cov Khoom Tshiab, los ntawm kev tsim txiaj ntawm nws tus kheej - txhim kho siab - ua haujlwm tiv thaiv - sintering catalyst system thiab cov txheej txheem purification tsis tu ncua, tau txhim kho cov txiaj ntsig zoo ntawm ib qho - cov pa roj carbon nanotubes thiab txo cov impurity residues. Nws yog lub chaw tsim khoom muaj zog tsav tsheb txo tus nqi rau siab -kawg carbon raj. Raws li cov chaw tsim khoom hauv tsev tau nkag siab tob hauv cov pa roj carbon- cov ntaub ntawv raws li, nws tau rhuav tshem tus nqi no los ntawm peb qhov loj me hauv qab no:
Kev tawg hauv Catalyst Anti-Sintering Technology:Tanfeng Cov Khoom Tshiab siv cov khoom siv tshwj xeeb txhawb nqa uas ua rau muaj txiaj ntsig zoo inhibits siab -kub sintering thaum ib zaug - cov pa roj carbon nanotube kev loj hlob, txuas lub neej catalyst ntau dua 3 zaug thiab ua rau kev loj hlob macroscopic yield ntawm SWCNTs mus rau ntau dua 20%, txo cov nqi khoom ntawm qhov chaw.
Nruam Purification thiab Impurity Tshem Tawm Txheej Txheem:Targeting qhov loj ntawm amorphous carbon thiab hlau residues nyob rau hauv crude SWCNT cov khoom, Shandong Tanfeng tau tso tseg inefficient batch acid ntxuav thiab tsim nruam countercurrent purification khoom. Tsis muaj kev puas tsuaj rau SWCNTs, nws tswj cov hmoov tshauv tsis pub dhau 2%, ua tiav kev lag luam - ua purity thiab txo qis cov neeg siv khoom cov nqi ua tom qab.
Txhawb nqa loj -Kev Sib cais ntawm Semiconducting SWCNTs: Although absolutely high-purity (99.99%) semiconducting SWCNTs remain a research-grade material, Shandong Tanfeng can already stably provide enriched semiconducting SWCNTs (semiconducting proportion >95%) ntawm tus nqi tsuas yog 50% ntawm cov khoom lag luam tuaj txawv teb chaws, muab tus nqi siab heev - siv tau zoo hauv tsev rau kev lag luam daim ntawv thov hloov pauv hloov pauv thiab siab - kawg tiv thaiv - cov txheej txheem zoo li qub.
Lub "ntev- tus nqi siab" ntawm siab- zoo ib leeg- cov pa roj carbon nanotubes yog qhov tshwm sim ntawm plaub yam ua ke: atomic- theem kev npaj, ntiaj teb- cov kev sib tw hauv chav kawm, kev ua lag luam oligopolistic, thiab cov txiaj ntsig zoo tshaj plaws. Raws li kev lag luam hauv tsev - suav nrog cov tub rog Suav xws li Shandong Tanfeng Cov Khoom Tshiab - txuas ntxiv mus rau hauv thaj chaw ntawm ib leeg - cov pa roj carbon nanotubes, tus nqi siab - zoo carbon nanotubes yuav tsum maj mam poob rau yav tom ntej. Rau cov tuam txhab uas muaj siab -qhov kawg daim ntawv thov xav tau, tam sim no yog lub sijhawm zoo tshaj plaws los qhia cov khoom siv hauv tsev ua tau zoo - cov pa roj carbon nanotubes zoo rau kev tsim kho thiab txo nqi nrog kev txhim kho kev ua haujlwm.