Ketso ea ho thekesela ka har'a ntho e nang le masoba e thusa ho feta ha metsi a tloaelehileng ho a arola ho tsoa ho metsi a boima.
Sehlopha sa lipatlisiso se etelletsoeng pele ke Susumu Kitagawa oa Univesithi ea Kyoto Institute for Cell-Material Sciences (iCeMS), Japane le Cheng Gu oa South China University of Technology, Chaena ba entse thepa e ka khonang ho arola ka katleho metsi a boima ho metsi a tloaelehileng mocheso oa kamore. Ho fihlela joale, ts'ebetso ena e bile thata haholo ebile e le matla haholo. Liphuputso li na le litlamorao bakeng sa lits'ebetso tsa indasteri - esita le tsa baeloji - tse kenyelletsang ho sebelisa mefuta e fapaneng ea molek'hule e le 'ngoe. Bo-rasaense ba tlalehile liphello tsa bona koranteng Nature.
Li-Isotopologues ke limolek'hule tse nang le mokhoa o tšoanang oa lik'hemik'hale 'me liathomo tsa tsona li kopana ka tlhophiso e tšoanang, empa bonyane e 'ngoe ea liathomo tsa tsona e na le palo e fapaneng ea li-neutron ho feta molek'hule ea motsoali. Ka mohlala, molek'hule ea metsi (H2O) e entsoe ka oksijene e le 'ngoe le liathomo tse peli tsa haedrojene. Khubu ea e 'ngoe le e 'ngoe ea liathomo tsa haedrojene e na le proton e le' ngoe 'me ha e na li-neutron. Ka metsing a boima (D2O), ka lehlakoreng le leng, liathomo tsa deuterium (D) ke li-isotopo tsa hydrogen tse nang le nuclei e nang le proton e le 'ngoe le neutron e le' ngoe. Metsi a boima a sebelisoa lihlopheng tsa nyutlelie, litšoantšong tsa bongaka, le liphuputsong tsa baeloji.
Cheng Gu, setsebi sa saense sa lisebelisoa, o re: “Li-isotopologue tsa metsi ke tse ling tsa tse thata ka ho fetisisa ho arola hobane li tšoana haholo. "Mosebetsi oa rona o fane ka mokhoa o neng o e-so ka o bonoa oa ho arola li-isotopologue tsa metsi ka mokhoa oa ho arola adsorption."
Gu le setsebi sa k'hemistri Susumu Kitagawa, hammoho le basebetsi-'moho, ba thehile mokhoa oa bona oa karohano ho polymer ea koporo e entsoeng ka porous coordination (PCP). Li-PCP ke lisebelisoa tsa kristale tse porous tse entsoeng ka li-node tsa tšepe tse hokahaneng ke li-organic linkers. Sehlopha se ile sa leka li-PCP tse peli tse entsoeng ka mefuta e fapaneng ea lihokela.
Se etsang hore li-PCP tsa bona e be tsa bohlokoa ka ho khetheha bakeng sa karohano ea isotopologue ke hore li-linkers lia fofa ha li futhumala ka mokhoa o itekanetseng. Ketso ena e phetholang e sebetsa joalo ka heke, e lumellang limolek'hule hore li fete ho tloha 'cage' e 'ngoe ho PCP ho ea ho e' ngoe. Motsamao o thibetsoe ha thepa e pholile.
Ha bo-rasaense ba pepesa 'flip-flop dynamic crystals' mouoane o nang le motsoako oa metsi a tloaelehileng, a boima le a batlang a le boima 'me ba a futhumala hanyenyane, ba sebelisa metsi a tloaelehileng ka potlako ho feta li-isotopologue tse ling tse peli. Habohlokoa, ts'ebetso ena e etsahetse ka har'a mocheso oa kamore.
"Karohano e makatsang ea li-isotopologue tsa metsi mosebetsing oa rona e phahame haholo ho feta mekhoa e tloaelehileng ka lebaka la khetho e phahameng haholo ts'ebetsong ea mocheso oa kamore," ho bolela Kitagawa. "Re na le tšepo ea hore lisebelisoa tse ncha tse tataisoang ke mosebetsi oa rona li tla ntlafatsoa ho arola li-isotopologue tse ling."
Reference: "Ho arola li-isotopologue tsa metsi ho sebelisa lisebelisoa tse laolang ho ata" ka Yan Su, Ken-ichi Otake, Jia-Jia Zheng, Satoshi Horike, Susumu Kitagawa le Cheng Gu, 9 Pulungoana, Nature.
DOI: 10.1038 / s41586-022-05310-y
