I-Tungsten Sulfide (WS2): Ukusebenza kunye nokusetyenziswa

I-WS2, ekwaziwa ngokuba yi-tungsten sulfide yigrey, inkqubo ye-hexagonal, i-semiconductor kunye ne-diamagnetic. Ine-coefficient ephantsi kakhulu yokungqubana (0.03), ukumelana noxinzelelo oluphezulu kakhulu kunye nokumelana ne-oxidation (ukubola kuqala kwi-450 ℃ emoyeni, Ifanelekile kubushushu obuphezulu, uxinzelelo oluphezulu, i-vacuum ephezulu, umthwalo ophezulu, isantya esiphezulu, imitha ephezulu, ukugqwala okunamandla, ubushushu obuphantsi kakhulu kunye nezinye iimeko ezinzima.

WS2 / tungsten sulfides / tungsten disulfides / tungsten (IV)I-sulfide yikhompawundi ebisoloko ifumana ingqalelo kuluntu lwezenzululwazi ngenxa yeempawu zayo ezikhethekileyo kunye nokusetyenziswa kwayo okunokwenzeka. Kweli nqaku, siza kuhlola ukuba yintoni i-WS2, iimpawu zayo, kunye nokusetyenziswa kwayo okunokwenzeka kwiinkalo ezahlukeneyo.

I-WS2yi-compound eyenziwe ngee-athomu ze-tungsten kunye ne-sulfur, enefomyula yekhemikhali ye-W(S2). Ikwintsapho yee-dichalcogenides zesinyithi esiguqukayo (ii-TMD), ezizizinto ezifakwe iileya ezinesakhiwo esifana ne-graphene. I-WS2 inesakhiwo esineeleya esiquka ii-athomu ze-tungsten ezibekwe phakathi kweeleya zee-athomu ze-sulfur. I-WS2 isebenzisa isakhiwo esineeleya ezinxulumeneI-MoS2(iMolybdenum Disulfide), ene-athomu ze-W ezikwi-trigonal prismatic coordination sphere, Olu lwakhiwo oluneeleya lunika i-WS2 iipropati zayo ezikhethekileyo kwaye luyenza ibe yinto enomdla kuphando lwesayensi kunye nokusetyenziswa kwetekhnoloji.

Enye yezona mpawu zibalaseleyo zeI-WS2yimpawu zayo zokuthambisa. I-WS2 inomlinganiselo ophantsi wokungqubana, nto leyo eyenza ukuba ibe lubricant egqwesileyo kwizicelo ezahlukeneyo. Isetyenziswe njengelubricant eqinileyo kwiindawo ezinobushushu obuphezulu kunye noxinzelelo oluphezulu, njengakwimizi-mveliso yeenqwelo moya kunye neemoto. Ulwakhiwo oluneeleya ze-WS2 luyivumela ukuba ityibilike ngokulula phezu komnye nomnye, inciphise ukungqubana kunye nokuguguleka phakathi kwemiphezulu.

Ukongeza kwiipropati zayo zokuthambisa,I-WS2ikwabonisa indlela esebenza ngayo i-semiconducting. Oku kuthetha ukuba ingasetyenziswa kwizixhobo ze-elektroniki kunye nezicelo ze-optoelectronic. I-WS2 ibonakalise ukuba ingasetyenziswa kwii-transistors, ii-photodetectors, kunye neeseli zelanga ngenxa yeempawu zayo ezikhethekileyo ze-elektroniki. Ukukwazi kwayo ukufunxa nokukhupha ukukhanya ngokufanelekileyo kuyenza ibe yinto ethembisayo kwizixhobo ze-optoelectronic zesizukulwana esilandelayo.

Ngaphezu koko,I-WS2ifundwe ngamandla ayo kwizicelo ze-catalysis kunye nokugcinwa kwamandla. Indawo yayo ephezulu yomphezulu kunye nomsebenzi wayo we-catalytic yenza ukuba ibe ngumviwa othembisayo wokusetyenziswa kwiiseli zamafutha, ii-hydrogen evolution reactions, kunye nezinye iinkqubo ze-catalytic. Izixhobo ezisekwe kwi-WS2 nazo ziphandwe ngamandla azo kwizixhobo zokugcina amandla, ezifana neebhetri kunye nee-supercapacitors, ngenxa ye-conductivity yazo ephezulu kunye neempawu ze-electrochemical.

Iimpawu ezikhethekileyo zeI-WS2zikwatsale umdla kwicandelo le-nanotechnology. Ii-nanoparticles ze-WS2 kunye nee-nanosheets ziye zahlanganiswa kwaye zafundwa ngenxa yamandla azo kwizicelo ezahlukeneyo ze-nanotechnology, ezifana ne-nanoelectronics, i-nanophotonics, kunye ne-nanomedicine. Amandla okulawula nokulawula iipropati ze-WS2 kwi-nanoscale avula amathuba amatsha ophuhliso lwee-nanomaterials eziphambili kunye nee-nanodevices.

Isishwankathelo,I-WS2 (i-tungsten sulfides)inezi njongo zilandelayo:

1. I-WS2 isetyenziswa kakhulu kwiikhatalyst zeoyile;

2. I-WS2 sisincedisi esitsha esisebenza kakuhle kakhulu;

3. I-WS2 ingasetyenziswa njengezithambiso eziqinileyo, izithambiso zefilimu eyomileyo, izixhobo ezidityanisiweyo ezizithambisayo;

4. I-WS2 yenzelwe ukwenza izongezo zokuthambisa ezisebenza kakuhle;

5. I-WS2 ingasetyenziswa njengee-fuel cells ze-anode, i-organic electrolyte battery anode, i-oxidation ye-sulfur dioxide kwi-asidi enamandla kwi-anode kunye ne-anode sensor;

6. I-WS2 isetyenziselwa ukwenza izinto ezidityanisiweyo ze-nano-ceramic;

7. I-WS2 sisixhobo esilungileyo se-semiconductor.

Ukuququmbela,I-WS2, okanye i-tungsten sulfide, yi-compound eneempawu ezahlukeneyo kunye nokusetyenziswa okunokwenzeka. Iimpawu zayo zokuthambisa, ukuziphatha kwe-semiconducting, umsebenzi we-catalytic, kunye nokukwazi kwayo kwi-nanotechnology kuyenza ibe yinto eguquguqukayo enezinto ezithembisayo kwiindawo ezahlukeneyo. Njengoko uphando kwi-WS2 luqhubeka luhambela phambili, kusenokwenzeka ukuba siza kubona uphuhliso olongezelelweyo kunye nokusetyenziswa kwale compound inomdla kwixesha elizayo.