UYonsei University usanda kushicilelwa i-athikili yocwaningo "ezwa nge-mpxene

I-Yonsei University isanda kushicilelwa i-athikili yocwaningo "Ukuzwa nge-MXEENE Inqubekela phambili kanye namathemba ", isakhiwo esinezinhlangothi ezimbili sikaMnobuni sisiza ukusebenza kwamaqembu ahlukahlukene okugcina, ukuhlinzeka ngenani elikhulu lamasayithi asebenzayo angaphezulu komhlaba. Kungenzeka ukuthi lezi zingxenye zingasebenza njengezindawo ezibucayi zezinzwa ze-tuse zangaphandle. Ngaphezu kwalokho, ukuthuthuka okuphezulu kwama-mpxene kuyinto Ilungele ukufeza izimpendulo zemizwa yomsindo ophansi. Ngakho-ke, lezi zakhiwo ziphakamisa ukuthi ama-Mxene athembisa kakhulu inzwa ethembisayo enika amandla ukuzwela okuphezulu, inqwaba yokutholwa (iLod) kanye nobuncane obutholwe ezinhlotsheni zezinzwa. Ekugcineni, ukuhlakazeka kwamanzi ama-mpxene alungele ukulungiswa kwemvelo kanye nokwelashwa kokuguqulwa; ngakho-ke, banenzuzo ngokwengeziwe ngokuya ngezingxenye ezintathu, ingxenye yokuqala: Ingxenye yesibili ye-Mxene ; Ingxenye III: Izicelo ze-MNEne Stering (3.1 Izinzwa Zamakhemikhali; 3.2 Biosensor; 3.3 Izinzwa Zomzimba).

21 September-2023

Sibutsetelo izinzwa ze-mxene

I-Mngene ibhekwa njengezinkundla eziningi zocwaningo njengezinto eziguqulwayo ze-2D. Ikakhulu emkhakheni wezinzwa, okuvuselelwa ngogesi okuphezulu nendawo enkulu yendawo ye-MXEENS-njengezinsimbi ezifanele njengezinto ezihle kakhulu njengezinto ezihlukile zezinzwa ezingadlula imingcele yobuchwepheshe bezinzwa ekhona. Lokhu kubuyekezwa kwenhloso kuhlinzeka ngesibukezo esiphelele sentuthuko yakamuva ebuchwepheshe ebukhweni bezinzwa base-Mxene, kanye ne-RoadMap yokuthengiswa kwezinzwa ezisekelwe kwi-Mnene. Izinzwa ezikhona zihlukaniswe ngokuhlelekile izinzwa zamakhemikhali, izinzwa zemvelo kanye nezinzwa zomzimba. Isigaba ngasinye sihlukaniswe ngezigaba ezahlukahlukene ngokuya ngezinzwa ezine eziyisisekelo zenzwa, okungukuthi, izindlela zikagesi, ze-electrochemical, ezihlelekile noma ezenhlalo. Izindlela ezimele zokwakheka nezikagesi zethulwe ukwenza ngcono ukusebenza esigabeni ngasinye. Ekugcineni, izici ezivimbela ukuthengiswa kwezinzwa ze-Mxene Sensor kuyaxoxwa, futhi kuhlongozwane nezindlela eziningana zokuqashelwa kokuthengiswa kwezinzwa ze-MXENE. Lokhu kubuyekezwa kuhlinzeka ngokuqonda okubanzi kubuchwepheshe bezinzwa ezedlule nobukhona be-Mnene-based Sensor, kanye nombono wesizukulwane esizayo sezindleko eziphansi, ukusebenza okuphezulu, kanye nezinzwa ze-multimoral ze-software electronic application.

21 September-2023

Kwenzeka kanjani ama-nanotubes ekhabhoni kumagazini aphezulu ka-2023 enze

I-Carbon Nanotubes, njengenye yezinto ezimele kakhulu e-carbon nanomatadium, ifundeke kakhulu iminyaka engaphezu kwengu-30, futhi imiphumela eminingana itholwe, futhi imisebenzi eminingi emihle iye yavela, futhi inqwaba yemisebenzi emihle ivele kwiphephabhuku eliphakeme le-2023. NgoJanuwari 26, 2023, i-Natural Energy yabika ukusetshenziswa kwe-CNT yarns kubaqoqi bamandla abasebenza ngemishini. Idivayisi isebenzisa ukwelula ukwenza amandla e-capacitor iguquke, okwenza kube manje kwisekethe, okuguqula amandla emishini abe amandla kagesi. Abaphenyi balungisa intambo esontekile ye-CNT ngokushintsha imodi esontekile yokujikeleza okune-conical kumodi esontekile. Lo mbhalo wamandla wemishini osuselwa kuma-CNT yarns uthuthukise ukusebenza kahle kwawo kokuguqulwa kwamandla kusuka ku-7.6% kuya ku-17.4% (ukwelula) no-22.4% (ukusonteka). Ukuze uthole ukuvuna kwamandla emishini phakathi kuka-2 no-120 hz, lolu wiya osontekile olusontekile lunamandla amakhulu aphezulu ane-gravitational amandla namandla aphakathi naphakathi kwamandla we-pair amandla asontekile abikiwe. NgoFebhuwari 9, 2023, izinto ezithuthukile zamandla zibike ukuthi abacwaningi basebenzise isu lokuzijabulisa lama-membranes angejwayelekile okufundwayo ukunikeza ama-membranes (HB / CNT @ cof) imisebenzi eminingi) ukuze ulondoloze ukuqina kwezinhlelo zebhethri ze-RT / NA-S. Ngenxa yesenzo se-synergistic se-hydroxynaphthol eluhlaza okwesibhakabhaka (HB) kanye ne-multi-wall Nanotubes (CNT), i-HB / CNT @ COFT yebhethri inamandla okulinganiselwa ku-433.4MAH Cishe izikhathi ezi-4 ezenziwa ngolwelwesi lwe-fiber ye-fiber. Ngaphezu kwemibiko engenhla, esetshenzisiwe ye-Catalysis B: Imvelo ibike ukusetshenziswa kwe-carbon nanotubes e-Oxygen Catalysis kumabhethri e-zinc-air, kanye ne-carbon nanotubes esebenza ngamakhonkolo Kumaphephabhuku aphezulu aphezulu, akhombisa isikhundla sawo emkhakheni we-nanomatadium. Kwenzeka kanjani ama-nanotubes ekhabhoni kumagazini aphezulu ka-2023 enze

21 September-2023

Ama-catalysts we-transion ama-catalysts afaka ushintsho

Ama-catalysts we-Transion Metal Catalysts afaka ama-hydroxides wensimbi yenguquko, oxides, ama-sulfides, ama-phosphates kanye nama-alloys. I-Molybdenum iyinsimbi yenguquko ye-NRR, kanti izakhiwo eziningana zamangqamuzana ezisuselwa ku-molybdenum zenzelwe i-electroncatalytic ammonia synthesis, enjenge-molybdenum nitride, i-molybdenum nitride, i-molybdenum carbide kanye ne-molybdenum sulfide, esetshenziswa kakhulu efundwe kahle. Unqenqema lwaseMos2 yindawo esebenzayo yokusabela kwe-elektrokatalytic futhi ingasetshenziswa ku-Electrocatatalyze NRR. Ngaphezu kwalokho, izinto ze-MXEON zinezakhiwo ezinhle zemishini kanye nendawo enkulu engaphezulu komhlaba, kanye nokusebenza kwazo kagesi neziza eziningi ezisebenzayo endaweni eyisisekelo zidlala indima ebalulekile ekuthuthukiseni i-Electrocatalysis. Izinto ze-Mngene zikhonjiswe ukuthi zilusizo nge-elektrocacisis yendlela yakhe / ye-Oer / Orr. Ama-catalysts we-Transion Metal Catalysts afaka ama-hydroxides wensimbi yenguquko, oxides, ama-sulfides, ama-phosphates kanye nama-alloys. I-Molybdenum iyinsimbi yenguquko ye-NRR, kanti izakhiwo eziningana zamangqamuzana ezisuselwa ku-molybdenum zenzelwe i-electroncatalytic ammonia synthesis, enjenge-molybdenum nitride, i-molybdenum nitride, i-molybdenum carbide kanye ne-molybdenum sulfide, esetshenziswa kakhulu efundwe kahle. Unqenqema lwaseMos2 yindawo esebenzayo yokusabela kwe-elektrokatalytic futhi ingasetshenziswa ku-Electrocatatalyze NRR. Ngaphezu kwalokho, izinto ze-MXEON zinezakhiwo ezinhle zemishini kanye nendawo enkulu engaphezulu komhlaba, kanye nokusebenza kwazo kagesi neziza eziningi ezisebenzayo endaweni eyisisekelo zidlala indima ebalulekile ekuthuthukiseni i-Electrocatalysis. Izinto ze-Mngene zikhonjiswe ukuthi zilusizo nge-elektrocacisis yendlela yakhe / ye-Oer / Orr.

21 September-2023

Ama-catalysts angewona ama-metallic ikakhulukazi afaka i-carbon-based

Ama-catalysts angewona ama-metallic ikakhulukazi afaka ama-catalysts asuselwa ku-carbon kanye ne-boron kanye ne-phoron esekelwe ama-catalysts. Imvamisa, ama-carcho asuselwa kwikhabhoni anesakhiwo se-porous kanye nendawo enkulu yendawo, esiza ukuvezwa kweziza ezisebenzayo futhi inikeze isiteshi esicebile se-proton kanye nezokuthutha ze-elektroni. Amaqembu asebenzayo ahlukahlukene we-oksijini kanye namaphutha athile angaphezulu komhlaba nasemphethweni we-graphene oxide enza kube nezindawo ezihlukile zikagesi nemisebenzi ye-catalytic. Abaphenyi basebenzisa ukuguqulwa okuhlukahlukene kwamakhemikhali kanye nezindlela zokubopha amakhemikhali ukuguqula ezinye izinto ezizuzisayo emaqenjini asebenzayo we-Go ukulungiselela uhlobo olusha lwe-electrocatalyst. Usebenzisa i-gragethiny njenge-substrate, abacwaningi bathola ukuthi i-boron eyodwa ne-nitrogen athomu doping inganciphisa i-CO2 ku-Ethylene. Izendlalelo ezimbalwa ze-phrosphorus nanosheets ezimnyama zinomsebenzi ongcono kanye nokukhetha ku-NRR ngenxa yeziza ezisebenzayo futhi zibuthakathaka. Phakathi kwalezi zinhlobo ezintathu ezingenhla ze-electrocatalysts, izinto ezinamakhambi ezimbili ze-nanosheet zisetshenziswa kabanzi emkhakheni we-catalysis. Izici zendawo ephezulu yendawo engaphezulu, inani elikhulu lamasayithi asebenzayo, futhi isakhiwo esingafakwanga sibenze babe nezinzuzo zemvelo ze-catalytic. Ama-catalysts anezinhlangothi ezimbili e-Atom-atom asuselwa ezintweni ezinobukhulu obubili nawo abe yi-hotspot ecwaningayo e-Electrocatalysis.

21 September-2023