Koj puas paub dab tsi yog daim ntawv thov ntawmnyiaj nanowires?
Ib-dimensional nanomaterials hais txog qhov loj ntawm ib qhov ntev ntawm cov khoom yog nruab nrab ntawm 1 thiab 100nm.Cov khoom hlau, thaum nkag mus rau hauv nanoscale, yuav nthuav tawm cov teebmeem tshwj xeeb uas txawv ntawm cov hlau macroscopic lossis ib qho hlau atoms, xws li cov teebmeem me me, cuam tshuam, teebmeem, quantum loj teebmeem, macroscopic quantum tunneling teebmeem, thiab dielectric confinement teebmeem.Yog li ntawd, hlau nanowires muaj peev xwm siv tau zoo hauv thaj chaw ntawm hluav taws xob, optics, thermals, magnetism thiab catalysis.Ntawm lawv, cov nyiaj nanowires tau siv dav hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob zoo nkauj Raman tawg, thiab cov khoom siv microelectronic vim lawv cov khoom siv hluav taws xob zoo heev, cov hluav taws xob hluav taws xob, cov khoom siv hluav taws xob tsawg, tsis muaj qhov tsis zoo, siab transparency, thiab biocompatibility zoo, nyias zaj duab xis hnub ci hlwb, micro-electrodes, thiab biosensors.
Silver nanowires siv rau hauv catalytic teb
Silver nanomaterials, tshwj xeeb tshaj yog nyiaj nanomaterials nrog cov loj loj thiab siab nam piv, muaj siab catalytic zog.Cov kws tshawb fawb tau siv PVP ua qhov chaw ruaj khov thiab npaj cov nyiaj nanowires los ntawm txoj kev hydrothermal thiab kuaj lawv cov electrocatalytic oxygen txo cov tshuaj tiv thaiv (ORR) los ntawm cyclic voltammetry.Nws tau pom tias cov nyiaj nanowires npaj tsis muaj PVP tau ua rau ORR qhov ceev tam sim no tau nce, uas qhia tau tias muaj zog electrocatalytic muaj peev xwm.Lwm tus kws tshawb fawb tau siv txoj kev polyol kom sai thiab yooj yim npaj cov nyiaj nanowires thiab nyiaj nanoparticles los ntawm kev tswj cov nyiaj NaCl (cov noob tsis ncaj).Los ntawm txoj kev tshawb xyuas cov peev txheej, nws tau pom tias cov nyiaj nanowires thiab cov nyiaj nanoparticles muaj cov haujlwm sib txawv electrocatalytic rau ORR nyob rau hauv alkaline tej yam kev mob, nyiaj nanowires qhia zoo catalytic kev ua tau zoo, thiab nyiaj nanowires yog electrocatalytic ORR Methanol muaj kev tiv thaiv zoo dua.Lwm tus kws tshawb fawb siv nyiaj nanowires npaj los ntawm txoj kev polyol li catalytic electrode ntawm lithium oxide roj teeb.Raws li qhov tshwm sim, nws tau pom tias cov nyiaj nanowires muaj qhov sib piv siab muaj qhov loj me me thiab muaj peev xwm txo cov pa oxygen, thiab txhawb cov kev cuam tshuam ntawm cov lithium oxide roj teeb hauv qab 3.4 V, uas ua rau tag nrho cov hluav taws xob efficiency ntawm 83.4%. , qhia cov cuab yeej electrocatalytic zoo heev.
Silver nanowires siv nyob rau hauv hluav taws xob teb
Silver nanowires tau maj mam dhau los ua kev tshawb fawb tsom ntawm cov khoom siv hluav taws xob vim lawv cov hluav taws xob zoo heev, tsis muaj qhov tsis kam thiab siab transparency.Cov kws tshawb fawb tau npaj pob tshab nyiaj nanowire electrodes nrog lub ntsej muag du.Hauv kev sim, PVP zaj duab xis tau siv los ua cov txheej txheem ua haujlwm, thiab qhov saum npoo ntawm cov nyiaj nanowire zaj duab xis tau them los ntawm kev hloov kho tshuab, uas ua kom zoo dua qhov roughness ntawm nanowire.Cov kws tshawb fawb tau npaj ua cov yeeb yaj kiab hloov pauv tau yooj yim nrog cov tshuaj tua kab mob.Tom qab cov yeeb yaj kiab pob tshab tau khoov 1000 zaug (khoov vojvoog ntawm 5 hli), nws qhov chaw tiv thaiv thiab lub teeb xa tawm tsis hloov pauv, thiab nws tuaj yeem siv dav rau cov kua siv lead ua kua thiab hnav.Cov khoom siv hluav taws xob thiab cov hnub ci hnub ci thiab ntau lwm qhov chaw.Lwm tus kws tshawb fawb siv 4 bismaleimide monomer (MDPB-FGEEDR) ua lub substrate rau embed lub pob tshab conductive polymer npaj los ntawm cov nyiaj nanowires.Qhov kev sim pom tau tias tom qab cov khoom siv hluav taws xob tau raug tshem tawm los ntawm lub zog sab nraud, qhov ntsuas qhov ntsuas tau kho nyob rau hauv cov cua sov ntawm 110 ° C, thiab 97% ntawm cov khoom siv hluav taws xob tuaj yeem rov qab tau hauv 5 feeb, thiab tib txoj hauj lwm tuaj yeem raug txiav thiab kho dua. .Lwm tus kws tshawb fawb tau siv cov nyiaj nanowires thiab cov duab cim xeeb polymers (SMPs) los npaj cov khoom siv polymer nrog cov txheej txheem ob txheej.Cov txiaj ntsig tau pom tias cov polymer muaj qhov ua tau zoo thiab kev ua tau zoo, tuaj yeem rov qab tau 80% ntawm qhov deformation nyob rau hauv 5s, thiab qhov hluav taws xob tsuas yog 5V, txawm tias qhov tensile deformation nce mus txog 12% tseem tuav tau zoo conductivity, Ntxiv rau, LED lub peev xwm tig tau. tsuas yog 1.5V.Lub conductive polymer muaj peev xwm siv tau zoo hauv kev siv hluav taws xob siv hluav taws xob yav tom ntej.
Silver nanowires siv nyob rau hauv qhov chaw ntawm optics
Silver nanowires muaj hluav taws xob zoo thiab thermal conductivity, thiab lawv tus kheej lub siab pob tshab tau dav siv hauv cov khoom siv kho qhov muag, lub hnub ci hlwb thiab cov ntaub ntawv electrode.Cov pob tshab nyiaj nanowire electrode nrog du nto muaj qhov zoo conductivity thiab kev xa tawm mus txog 87.6%, uas tuaj yeem siv los ua lwm txoj hauv kev rau cov organic teeb-emitting diodes thiab ITO cov ntaub ntawv hauv cov hnub ci.
Hauv kev npaj cov kev sim ua yeeb yaj kiab hloov pauv tau yooj yim, nws tau tshawb xyuas tias seb tus naj npawb ntawm cov nyiaj nanowire tso tawm puas yuav cuam tshuam rau qhov pom tseeb.Nws tau pom tias raws li tus naj npawb ntawm deposition mus txog ntawm cov nyiaj nanowires nce mus rau 1, 2, 3, thiab 4 lub sij hawm, lub pob tshab ntawm no pob tshab conductive zaj duab xis maj mam txo mus rau 92%, 87.9%, 83.1%, thiab 80.4%, feem.
Tsis tas li ntawd, cov nyiaj nanowires kuj tseem siv tau los ua cov khoom siv hauv cov ntshav plasma thiab tau siv dav hauv kev txhim kho Raman spectroscopy (SERS) kev ntsuam xyuas kom ua tiav qhov kev ntsuas siab thiab tsis muaj kev puas tsuaj.Cov kws tshawb fawb tau siv txoj hauv kev tas li los npaj ib qho siv lead ua nyiaj nanowire arrays nrog cov npoo du thiab qhov sib piv siab hauv AAO templates.
Silver nanowires siv nyob rau hauv lub tshav pob ntawm sensors
Silver nanowires yog dav siv nyob rau hauv lub tshav pob ntawm sensors vim lawv zoo tshav kub conductivity, hluav taws xob conductivity, biocompatibility thiab antibacterial zog.Cov kws tshawb fawb tau siv cov nyiaj nanowires thiab hloov kho electrodes ua los ntawm Pt ua halide sensors los kuaj cov ntsiab lus halogen hauv kev daws teeb meem los ntawm cyclic voltammetry.Qhov siab tshaj plaws yog 0.059 hauv 200 μmol / L ~ 20.2 mmol / L Cl-solution.μA / (mmol•L), nyob rau hauv thaj tsam ntawm 0μmol / L ~ 20.2mmol / L Br- thiab I-solutions, rhiab heev yog 0.042μA / (mmol•L) thiab 0.032μA / (mmol•L) feem.Cov kws tshawb fawb tau siv cov pa roj carbon monoxide hloov pauv ua los ntawm cov nyiaj nanowires thiab chitosan los saib xyuas cov As-them hauv dej uas muaj rhiab heev.Lwm tus kws tshawb fawb tau siv nyiaj nanowires npaj los ntawm txoj kev polyol thiab hloov kho lub vijtsam luam tawm carbon electrode (SPCE) nrog lub tshuab hluav taws xob ultrasonic los npaj qhov tsis yog-enzymatic H2O2 sensor.Qhov kev ntsuam xyuas polarographic pom tau tias lub sensor pom cov lus teb ruaj khov tam sim no nyob rau hauv thaj tsam ntawm 0.3 txog 704.8 μmol / L H2O2, nrog rhiab heev ntawm 6.626 μA / (μmol•cm2) thiab lub sijhawm teb tsuas yog 2 s.Tsis tas li ntawd, dhau los ntawm kev ntsuas titration tam sim no, nws tau pom tias qhov ntsuas H2O2 rov qab los ntawm tib neeg cov ntshav nce mus txog 94.3%, ntxiv kev lees paub tias qhov no tsis yog-enzymatic H2O2 sensor tuaj yeem siv rau kev ntsuas cov qauv lom neeg.
Post lub sij hawm: Jun-03-2020