Izindaba Zenkampani
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Iyini inzuzo ye-graphene? Amacala amabili okusetshenziswa akusiza uqonde amathuba okusetshenziswa kwe-graphene
Ngo-2010, uGeim noNovoselov bawine uMklomelo kaNobel ku-physics ngomsebenzi wabo ku-graphene. Lo mklomelo ushiye umbono ojulile kubantu abaningi. Phela, akuwona wonke amathuluzi okuhlola uMklomelo kaNobel avame njengetheyiphu yokunamathela, futhi akuwona wonke amathuluzi ocwaningo anomlingo futhi kulula ukuwaqonda njengo-R...Funda kabanzi -
Ucwaningo ngokumelana nokugqwala kwe-graphene / carbon nanotube eqiniswe nge-alumina ceramic coating
1. Ukulungiselela ukumboza Ukuze kube lula ukuhlolwa kwe-electrochemical kamuva, kukhethwa insimbi engagqwali engu-30mm × 4 mm 304 njengesisekelo. Pholisha bese ususa ungqimba lwe-oxide olusele kanye namabala okugqwala ebusweni be-substrate nge-sandpaper, uwafake ebhekheni eliqukethe i-acetone, uphathe i-sta...Funda kabanzi -
(i-anode yensimbi ye-lithium) Isigaba sokuhlangana kwe-electrolyte entsha eqinile etholakala ku-anion
I-Solid Electrolyte Interphase (SEI) isetshenziswa kabanzi ukuchaza isigaba esisha esakhiwe phakathi kwe-anode kanye ne-electrolyte kumabhethri asebenzayo. Amabhethri ensimbi e-lithium (Li) anamandla aphezulu aphazanyiswa kakhulu yi-dendritic lithium deposition eqondiswa yi-SEI engalingani. Nakuba ine-...Funda kabanzi -
Ukuvinjelwa okungenzeka kwama-membrane e-MoS2 anezendlalelo ezisebenzayo
I-membrane ye-MoS2 enezingqimba ifakazelwe ukuthi inezici ezihlukile zokwenqatshwa kwama-ion, ukungena kwamanzi okuphezulu kanye nokuqina kwe-solvent yesikhathi eside, futhi ibonise amandla amakhulu ekuguqulweni/ekugcinweni kwamandla, ekuzweleni, kanye nasekusetshenzisweni okusebenzayo njengamadivayisi e-nanofluidic. I-membrane eguqulwe ngamakhemikhali ye...Funda kabanzi -
Ukuhlanganiswa kwe-Sonogashira okubangelwa yi-nickel okubangelwa yi-alkylpyridinium salts okunikwe amandla yi-NN2 pincer ligand
Ama-alkyne atholakala kabanzi emikhiqizweni yemvelo, kuma-molecule asebenzayo ngokwezinto eziphilayo kanye nezinto ezisebenzayo zezinto eziphilayo. Ngesikhathi esifanayo, nawo angama-intermediate abalulekile ekwakhiweni kwezinto eziphilayo futhi angabhekana nokusabela okuningi kokuguqulwa kwamakhemikhali. Ngakho-ke, ukuthuthukiswa kokulula nokusebenza kahle...Funda kabanzi