Tshaj 30 stoichiometric MXenes twb tau ua ke, nrog suav tsis txheeb ntxiv cov khoom daws teeb meem MXenes. Txhua MXene muaj qhov tshwj xeeb kho qhov muag, hluav taws xob, lub cev, thiab tshuaj lom neeg, ua rau lawv siv nyob rau hauv yuav luag txhua qhov chaw, los ntawm biomedicine mus rau electrochemical zog cia. Peb txoj haujlwm tsom mus rau kev sib txuas ntawm MAX theem sib txawv thiab MXenes, suav nrog cov qauv tshiab thiab cov qauv, nthuav tawm tag nrho M, A, thiab X chemistry, thiab los ntawm kev siv txhua qhov kev paub txog MXene synthesis. Hauv qab no yog qee cov lus qhia tshwj xeeb uas peb tab tom nrhiav:
1. Siv ntau yam M-chemistry
Txhawm rau tsim MXenes nrog cov khoom tunable (M'yM"1-y)n + 1XnTx, kom ruaj khov cov qauv uas tsis tau muaj ua ntej (M5X4Tx), thiab feem ntau txiav txim siab cov txiaj ntsig ntawm chemistry ntawm MXene zog.
2. Synthesis ntawm MXenes los ntawm non-aluminium MAX theem
MXenes yog ib chav kawm ntawm 2D cov ntaub ntawv uas tsim los ntawm cov tshuaj etching ntawm A lub caij hauv MAX theem. Txij li thaum lawv qhov kev tshawb pom dhau 10 xyoo dhau los, tus naj npawb ntawm MXenes sib txawv tau loj hlob los ntawm ntau yam MnXn-1 (n = 1,2,3,4, lossis 5), lawv cov kev daws teeb meem (txiav txim siab thiab teeb meem), thiab cov khoom tsis txaus. Feem ntau MXenes yog tsim los ntawm txhuas MAX theem, txawm hais tias muaj ob peb tsab ntawv ceeb toom ntawm MXenes ua los ntawm lwm yam A (piv txwv li, Si thiab Ga). Peb nrhiav kom nthuav dav lub tsev qiv ntawv ntawm MXenes nkag tau los ntawm kev tsim etching raws tu qauv (xws li, tov kua qaub, molten ntsev, thiab lwm yam) rau lwm yam uas tsis yog-aluminium MAX theem pab txhawb txoj kev kawm ntawm MXenes tshiab thiab lawv cov khoom.
3. Etching kinetics
Peb tab tom sim nkag siab txog kinetics ntawm etching, yuav ua li cas cov etching chemistry cuam tshuam rau MXene cov khoom, thiab peb tuaj yeem siv qhov kev paub no los ua kom zoo dua cov synthesis ntawm MXenes.
4. Cov txheej txheem tshiab hauv delamination ntawm MXenes
Peb tab tom saib cov txheej txheem scalable uas tso cai rau muaj peev xwm ntawm MXenes 'delamination.
Post lub sij hawm: Dec-02-2022