Tungsten Sulfide (WS2): Kev Ua Tau Zoo thiab Kev Siv

WS2, tseem hu ua tungsten sulfide yog grey, hexagonal system, semiconductor thiab diamagnetic. Nws muaj qhov sib txhuam coefficient qis heev (0.03), siab heev tsis kam thiab oxidation tsis kam (decomposition pib ntawm 450 ℃ hauv huab cua, Nws yog qhov tsim nyog rau qhov kub thiab txias, siab siab, siab nqus tsev, siab thauj khoom, siab ceev, siab hluav taws xob, muaj zog corrosion, ultra-low kub thiab lwm yam mob hnyav.

WS2 / tungsten sulfides / tungsten disulfides / tungsten (IV)sulfide yog ib qho tshuaj uas tau txais kev saib xyuas hauv zej zog kev tshawb fawb vim nws cov yam ntxwv tshwj xeeb thiab kev siv tau. Hauv tsab xov xwm no, peb yuav tshawb nrhiav seb WS2 yog dab tsi, nws cov yam ntxwv, thiab nws cov kev siv tau hauv ntau qhov chaw.

WS2yog ib qho tshuaj uas ua los ntawm tungsten thiab sulfur atoms, nrog rau cov mis tshuaj ntawm W (S2). Nws yog ib feem ntawm tsev neeg ntawm cov hlau hloov pauv dichalcogenides (TMDs), uas yog cov ntaub ntawv txheej nrog cov qauv zoo ib yam li graphene. WS2 muaj cov qauv txheej uas muaj cov tungsten atoms sandwiched ntawm cov txheej ntawm sulfur atoms. WS2 txais yuav cov qauv txheej ntsig txogMoS2(Molybdenum Disulfide), nrog rau W atoms nyob hauv trigonal prismatic coordination sphere, Cov qauv txheej txheem no muab WS2 nws cov khoom tshwj xeeb thiab ua rau nws yog cov khoom siv nthuav rau kev tshawb fawb thiab kev siv thev naus laus zis.

Ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawmWS2yog nws cov khoom siv lubricating. WS2 muaj cov coefficient qis ntawm kev sib txhuam, uas ua rau nws yog cov roj nplua nyeem zoo heev rau ntau yam kev siv. Nws tau siv los ua cov roj nplua nyeem khov kho hauv qhov kub thiab txias thiab siab, xws li hauv kev lag luam aerospace thiab automotive. Cov qauv txheej txheem ntawm WS2 tso cai rau nws yooj yim swb hla ib leeg, txo kev sib txhuam thiab hnav ntawm cov nto.

Ntxiv rau nws cov khoom lubricating,WS2kuj qhia txog tus cwj pwm semiconducting. Qhov no txhais tau tias nws tuaj yeem siv rau hauv cov khoom siv hluav taws xob thiab cov ntawv thov optoelectronic. WS2 tau pom tias muaj peev xwm siv rau hauv transistors, photodetectors, thiab lub hnub ci hlwb vim nws cov khoom siv hluav taws xob tshwj xeeb. Nws lub peev xwm los nqus thiab tso tawm lub teeb ua rau nws yog cov khoom siv cog lus rau cov khoom siv optoelectronic tiam tom ntej.

Tsis tas li ntawd xwb,WS2tau raug kawm txog nws lub peev xwm hauv kev siv catalysis thiab kev khaws cia lub zog. Nws thaj chaw siab thiab kev ua haujlwm catalytic ua rau nws yog tus neeg sib tw zoo rau kev siv hauv cov roj hlwb, cov tshuaj tiv thaiv hydrogen evolution, thiab lwm yam txheej txheem catalytic. Cov ntaub ntawv raws li WS2 kuj tau raug tshawb nrhiav txog lawv lub peev xwm hauv cov khoom siv khaws cia lub zog, xws li roj teeb thiab supercapacitors, vim lawv cov conductivity siab thiab cov khoom siv electrochemical.

Cov khoom tshwj xeeb ntawmWS2kuj tau nyiam cov neeg siv khoom hauv kev siv nanotechnology. WS2 nanoparticles thiab nanosheets tau raug tsim thiab kawm txog lawv lub peev xwm hauv ntau yam kev siv nanotechnology, xws li nanoelectronics, nanophotonics, thiab nanomedicine. Lub peev xwm los tswj thiab tswj cov khoom ntawm WS2 ntawm nanoscale qhib cov cib fim tshiab rau kev txhim kho cov khoom siv nano thiab nanodevices siab heev.

Hauv kev xaus,WS2 (tungsten sulfides)muaj cov kev siv hauv qab no:

1. WS2 feem ntau yog siv rau cov roj catalysts;

2. WS2 yog ib qho tshuaj catalyst tshiab uas ua haujlwm tau zoo heev;

3. WS2 siv tau ua cov roj nplaum khov, cov roj nplaum zaj duab xis qhuav, cov ntaub ntawv sib xyaw ua ke uas siv lubricating;

4. WS2 yog los tsim cov khoom siv roj nplua nyeem ua haujlwm siab;

5. WS2 siv tau ua roj teeb ntawm lub anode, cov roj teeb electrolyte organic anode, qhov oxidation ntawm sulfur dioxide hauv cov kua qaub muaj zog hauv lub anode thiab lub anode sensor;

6. WS2 yog siv los ua cov khoom sib xyaw nano-ceramic;

7. WS2 yog ib yam khoom siv semiconductor zoo.

Xaus lus,WS2, lossis tungsten sulfide, yog ib qho tshuaj uas muaj ntau yam khoom tshwj xeeb thiab muaj peev xwm siv tau. Nws cov khoom siv lubricating, semiconducting behavior, catalytic activity, thiab muaj peev xwm hauv nanotechnology ua rau nws yog ib yam khoom siv tau ntau yam nrog kev cia siab zoo hauv ntau qhov chaw. Raws li kev tshawb fawb txog WS2 txuas ntxiv mus, nws yuav zoo li peb yuav pom kev txhim kho ntxiv thiab kev siv ntawm cov tshuaj no yav tom ntej.