Ngaphezulu kwe-30 ye-MXenes ye-stoichiometric esele yenziwe, kunye ne-MXenes eyongezelelweyo yesisombululo esiqinileyo. I-MXene nganye ineempawu ezikhethekileyo ze-optical, electronic, physical, kunye neekhemikhali, ezikhokelela ekubeni zisetyenziswe phantse kuyo yonke intsimi, ukusuka kwi-biomedicine ukuya kwi-electrochemical energy storage. Umsebenzi wethu ugxile ekudityanisweni kwezigaba ezahlukeneyo ze-MAX kunye ne-MXenes, kubandakanywa ukubunjwa okutsha kunye nezakhiwo, ezithatha zonke i-M, A, kunye ne-X chemistry, kunye nokusebenzisa zonke iindlela ze-MXene ze-synthesis ezaziwayo. Ilandelayo yeminye yemigaqo ethile esiyilandelayo:
1. Ukusebenzisa iiM-chemistries ezininzi
Ukuvelisa i-MXenes ezineempawu eziguqulekayo (M'yM”1-y)n+1XnTx, ukuzinzisa izakhiwo ezingazange zibekho ngaphambili (M5X4Tx), kwaye ngokuqhelekileyo zinqume umphumo wekhemistri kwiipropati zeMXene.
2. I-Synthesis ye-MXenes ukusuka kwi-non-aluminium MAX izigaba
I-MXenes yiklasi yezinto ze-2D ezenziwe ngekhemikhali etching ye-A element kwizigaba ze-MAX. Ukusukela ekufumaneni kwabo kwiminyaka eyi-10 eyadlulayo, inani le-MXenes eyahlukileyo likhule kakhulu ukubandakanya uninzi lwe-MnXn-1 (n = 1,2,3,4, okanye 5), izisombululo zabo eziqinileyo (eziyalelweyo kwaye ziphazamisekile), kunye nezithuba eziqinileyo. Uninzi lwe-MXenes ziveliswa kwi-aluminium MAX izigaba, nangona kukho iingxelo ezimbalwa ze-MXenes eziveliswe kwezinye izinto ze-A (umz., Si kunye neGa). Sifuna ukwandisa ilayibrari MXenes olufikelelekayo ngokuphuhlisa etching protocols (umzekelo, acid exutywe, ityuwa etyhidiweyo, njalo njalo.) kwezinye non-aluminiyam MAX izigaba lula ukufunda MXenes ezintsha kunye neempawu zabo.
3. Etching kinetics
Sizama ukuqonda i-kinetics ye-etching, indlela i-chemistry etching echaphazela ngayo iipropati ze-MXene, kunye nendlela esinokulusebenzisa ngayo olu lwazi ukuze siphucule i-synthesis ye-MXenes.
4. Iindlela ezintsha zokucocwa kwe-MXenes
Sijonge kwiinkqubo ezihlaziywayo ezivumela ukwenzeka kwe-MXenes' delamination.
Ixesha lokuposa: Dec-02-2022