Esimweni esonakele kakhulu, ukuqapha kwe-spectroscopy okuku-inthanethi kuba yindlela yocwaningo esebenzayo.
I-Lithium bis(fluorosulfonyl)amide (LiFSI) ingasetshenziswa njengesithasiselo sama-electrolyte ebhethri ye-lithium-ion, ngezinzuzo ezifana nokuminyana kwamandla aphezulu, ukuzinza kwe-thermal, nokuphepha.Isidingo sesikhathi esizayo siba sobala kakhulu, okuyenza ibe indawo enkulu ocwaningweni lwezinto ezibonakalayo zemboni yamandla.
Inqubo yokuhlanganisa ye-LiFSI ifaka i-fluoridation.I-Dichlorosulfonyl amide ihlangana ne-HF, lapho i-Cl esakhiweni semolekyuli ithathelwa indawo ngu-F, ikhiqize i-bis(fluorosulfonyl)amide.Phakathi nenqubo, imikhiqizo ephakathi engashintshwanga ngokugcwele iyakhiqizwa.Izimo zokusabela ziqinile: I-HF igqwala kakhulu futhi inobuthi ngokwedlulele;ukusabela kwenzeka ngaphansi kwezinga lokushisa eliphezulu nokucindezela, okwenza inqubo ibe yingozi kakhulu.
Njengamanje, ucwaningo oluningi ngalokhu kusabela lugxile ekutholeni izimo zokusabela ezifanele ukuze kwandiswe isivuno somkhiqizo.Okuwukuphela kwendlela yokuthola ungaxhunyiwe ku-inthanethi etholakalayo yazo zonke izingxenye i-spectrum F nuclear magnetic resonance (NMR).Inqubo yokuthola iyinkimbinkimbi kakhulu, idla isikhathi, futhi iyingozi.Kuyo yonke indlela yokusabela, ehlala amahora ambalwa, ingcindezi kufanele ikhishwe futhi amasampula athathwe njalo ngemizuzu eyi-10-30.Lawa masampuli abe esehlolwa nge-F NMR ukuze kutholwe okuqukethwe kwemikhiqizo emaphakathi nezinto zokusetshenziswa.Umjikelezo wokuthuthukisa mude, ukusampula kuyinkimbinkimbi, futhi inqubo yesampula nayo ithinta ukusabela, okwenza idatha yokuhlola ingameleli.
Kodwa-ke, ubuchwepheshe bokuqapha ku-inthanethi bungabhekana ngokuphelele nemikhawulo yokuqapha okungaxhunyiwe ku-inthanethi.Enqubweni yokuthuthukisa, i-spectroscopy eku-inthanethi ingasetshenziswa ukuqapha ukugxila kwesikhathi sangempela se-in-situ kwama-reactants, imikhiqizo emaphakathi, nemikhiqizo.I-probe yokucwilisa ifinyelela ngokuqondile ngaphansi kwendawo ewuketshezi kuketela lokusabela.I-probe ingakwazi ukumelana nokugqwala okuvela ezintweni ezifana ne-HF, i-hydrochloric acid, ne-chlorosulfonic acid, futhi ingabekezelela amazinga okushisa afika ku-200°C kanye nengcindezi engu-15 MPa.Igrafu engakwesokunxele ibonisa ukuqapha okuku-inthanethi kwama-reactants kanye nemikhiqizo emaphakathi ngaphansi kwamapharamitha enqubo ayisikhombisa.Ngaphansi kwepharamitha 7, izinto zokusetshenziswa zisetshenziswa ngokushesha okukhulu, futhi ukusabela kuqedwa ngaphambi kwesikhathi, okwenza kube isimo esingcono kakhulu sokusabela.
Isikhathi sokuthumela: Nov-23-2023