Uyazi ukuthi yiziphi izinhlelo zokusebenzaama-nanowires esiliva?

Ama-nanomaterials anohlangothi olulodwa abhekisela kusayizi wohlangothi olulodwa lwento ephakathi kuka-1 no-100nm.Izinhlayiya zensimbi, lapho zingena ku-nanoscale, zizobonisa imiphumela ekhethekile ehlukile kuleyo yezinsimbi ezinkulu noma ama-athomu ensimbi eyodwa, njengemiphumela yosayizi omncane, ukuxhumana, Imiphumela, imiphumela yesayizi ye-quantum, imiphumela ye-macroscopic quantum tunneling, kanye nemiphumela yokuvalelwa kwe-dielectric.Ngakho-ke, ama-nanowires ensimbi anamandla amakhulu okusebenza emikhakheni kagesi, i-optics, i-thermals, i-magnetism kanye ne-catalysis.Phakathi kwazo, ama-nanowires esiliva asetshenziswa kakhulu kuma-catalysts, ukuhlakazeka kwe-Raman okuthuthukisiwe, kanye namadivayisi we-microelectronic ngenxa ye-conductivity yawo kagesi enhle kakhulu, ukushisa okushisa, ukumelana nokushisa okuphansi, ukukhanya okuphezulu, nokuhambisana okuhle kwe-biocompatibility, ifilimu encane yamaseli elanga, ama-micro-electrodes, kanye nama-biosensor.

Kusetshenziswe ama-nanowires esiliva kunkambu ye-catalytic

Ama-nanomaterials esiliva, ikakhulukazi ama-nanomaterials esiliva anosayizi ofanayo kanye ne-aspect ratio ephezulu, anezici eziphezulu ze-catalytic.Abacwaningi basebenzise i-PVP njenge-stabilizer yangaphezulu futhi balungisa ama-nanowires esiliva ngendlela ye-hydrothermal futhi bahlola izakhiwo zabo ze-electrocatalytic oxygen reduction reaction (ORR) nge-cyclic voltammetry.Kutholwe ukuthi ama-nanowires esiliva alungiselelwe ngaphandle kwe-PVP ayebaluleke kakhulu Ukuminyana kwamanje kwe-ORR kuyanda, okubonisa ikhono eliqinile le-electrocatalytic.Omunye umcwaningi wasebenzisa indlela ye-polyol ukuze alungise ngokushesha futhi kalula ama-nanowires esiliva nama-nanoparticles esiliva ngokulawula inani le-NaCl (imbewu engaqondile).Ngendlela engase ibe khona yokuskena, kutholwe ukuthi ama-nanowires esiliva nama-nanoparticles esiliva anemisebenzi ehlukene ye-electrocatalytic ye-ORR ngaphansi kwezimo ze-alkaline, ama-nanowires esiliva abonisa ukusebenza okungcono kwe-catalytic, kanti ama-nanowires esiliva angama-electrocatalytic ORR Methanol anokumelana okungcono.Omunye umcwaningi usebenzisa ama-nanowires esiliva alungiselelwe indlela ye-polyol njenge-electrode esebenzayo yebhethri ye-lithium oxide.Ngenxa yalokho, kwatholakala ukuthi ama-nanowires esiliva anesilinganiso esiphakeme sokusabela anendawo enkulu yokusabela kanye nekhono elinamandla lokunciphisa umoya-mpilo, futhi akhuthaze ukusabela kokubola kwebhethri le-lithium oxide elingaphansi kuka-3.4 V, okuholele ekusebenzeni kahle kukagesi okuphelele kwama-83.4% , ebonisa impahla ye-electrocatalytic enhle kakhulu.

Ama-nanowires esiliva asetshenziswa endaweni kagesi

Ama-nanowires esiliva kancane kancane asephenduke isizinda sokucwaninga sezinto ze-electrode ngenxa yokuguquguquka kwazo okuhle kakhulu kagesi, ukumelana nendawo ephansi kanye nokucaca okuphezulu.Abacwaningi balungisa ama-electrode esiliva esiliva ane-nanowire abushelelezi.Esivivinyweni, ifilimu ye-PVP yasetshenziswa njengesendlalelo esisebenzayo, futhi ingaphezulu lefilimu lesiliva le-nanowire lambozwa indlela yokudlulisa imishini, ethuthukise ngempumelelo ubulukhuni be-nanowire.Abacwaningi balungiselela ifilimu ye-conductive eguquguqukayo enezinto ezilwa namagciwane.Ngemuva kokuthi ifilimu ye-conductive ebonakalayo igotshwe izikhathi ezingu-1000 (i-radius egobayo engu-5mm), ukumelana kwayo kwendawo kanye nokudluliswa kokukhanya akuzange kushintshe kakhulu, futhi ingasetshenziswa kabanzi ekubonisweni kwekristalu ewuketshezi nezinto ezigqokwayo.Imishini kagesi namaseli elanga neminye imikhakha eminingi.Omunye umcwaningi usebenzisa i-4 bismaleimide monomer (MDPB-FGEEDR) njenge-substrate yokushumeka i-polymer conductive esobala elungiswe kusukela kuma-nanowires esiliva.Ukuhlolwa kwathola ukuthi ngemva kokuba i-polymer conductive isigundwe ngamandla angaphandle, inothi yalungiswa ngaphansi kokushisisa ngo-110 ° C, futhi u-97% we-conductivity yangaphezulu ingatholakala kungakapheli imizuzu emi-5, futhi isikhundla esifanayo singasikwa ngokuphindaphindiwe futhi silungiswe. .Omunye umcwaningi wasebenzisa ama-nanowires esiliva kanye nama-polymers enkumbulo yokuma (SMPs) ukuze alungise i-polymer eqhubayo enesakhiwo esinezingqimba ezimbili.Imiphumela ibonisa ukuthi i-polymer inokuguquguquka okuhle kakhulu kanye ne-conductivity, ingabuyisela u-80% we-deformation ngaphakathi kwe-5s, kanye ne-voltage engu-5V kuphela, noma ngabe i-tensile deformation ifinyelela ku-12% isalokhu igcina i-conductivity enhle, Ngaphezu kwalokho, i-LED Ikhono lokuvula amandla. i-1.5V kuphela.I-polymer conductive inamandla amakhulu wokusebenzisa emkhakheni wezinto zikagesi ezigqokekayo esikhathini esizayo.

Ama-nanowires ayisiliva asetshenziswa emkhakheni we-optics

Ama-nanowires esiliva ane-conductivity enhle kagesi kanye ne-thermal, futhi ukubonakala kwawo okuphezulu okuyingqayizivele kuye kwasetshenziswa kabanzi kumadivayisi optical, amaseli elanga kanye nezinto ze-electrode.I-electrode esobala yesiliva ye-nanowire enendawo ebushelelezi inokusebenza okuhle futhi ukudluliswa kwedatha kufika ku-87.6%, engasetshenziswa njengenye indlela yama-organic light-emitting diode nezinto ze-ITO kumaseli elanga.

Ekulungiseni izivivinyo zefilimu eziguqukayo ezibonisa ngale, kuyahlolisiswa ukuthi ingabe inani lesiliva le-nanowire deposition lingathonya obala.Kutholwe ukuthi njengoba inani lemijikelezo ye-deposit ye-nanowires yesiliva lenyuka laya ku-1, 2, 3, kanye nezikhathi ezi-4, ukubonakala kwaleli filimu ebonisa izinto ezibonakalayo kwehla kancane kancane kuya ku-92%, 87.9%, 83.1%, no-80.4%, ngokulandelana.

Ngaphezu kwalokho, ama-nanowires esiliva angasetshenziswa njengesithwali se-plasma esithuthukisiwe futhi asetshenziswa kabanzi ekuhloleni i-Raman spectroscopy (i-SERS) ethuthukisa phezulu ukuze kuzuzwe ukutholwa okuzwela kakhulu nokungonakali.Abacwaningi basebenzise indlela engase ibe khona njalo ukuze balungiselele i-crystal silver nanowire array eyodwa enobuso obushelelezi kanye ne-aspect ratio ephezulu kuzifanekiso ze-AAO.

Ama-nanowires ayisiliva asetshenziswa emkhakheni wezinzwa

Ama-nanowires esiliva asetshenziswa kabanzi emkhakheni wezinzwa ngenxa yokushisa kwawo okuhle kokushisa, ukuqhutshwa kukagesi, i-biocompatibility kanye nezakhiwo ze-antibacterial.Abacwaningi basebenzise ama-nanowires esiliva nama-electrode ashintshiwe enziwe nge-Pt njengezinzwa ze-halide ukuze bahlole izakhi ze-halogen ohlelweni lwesixazululo nge-voltammetry ye-cyclic.Ukuzwela kwaba ngu-0.059 kusixazululo se-Cl esingu-200 μmol/L~20.2 mmol/L.μA/(mmol•L), kububanzi obungu-0μmol/L~20.2mmol/L Br- kanye ne-I-solutions, ukuzwela kube ngu-0.042μA/(mmol•L) kanye no-0.032μA/(mmol•L) ngokulandelanayo.Abacwaningi basebenzise i-modified transparent carbon electrode eyenziwe ngama-nanowires esiliva kanye ne-chitosan ukuze baqaphe i-As element emanzini enokuzwela okuphezulu.Omunye umcwaningi wasebenzisa ama-nanowires esiliva alungiselelwe indlela ye-polyol futhi washintsha isikrini se-carbon electrode ephrintiwe (SPCE) ngejeneretha ye-ultrasonic ukuze kulungiswe inzwa ye-H2O2 engeyona i-enzymatic.Ukuhlolwa kwe-polarographic kubonise ukuthi inzwa ibonise impendulo yamanje ezinzile ebangeni le-0.3 kuya ku-704.8 μmol/L H2O2, nokuzwela kwe-6.626 μA/(μmol•cm2) kanye nesikhathi sokuphendula se-2 s kuphela.Ukwengeza, ngokuhlolwa kwamanje kwe-titration, kutholwe ukuthi ukululama kwenzwa ye-H2O2 ku-serum yomuntu kufinyelela ku-94.3%, okuqinisekisa futhi ukuthi le nzwa ye-H2O2 engeyona i-enzymatic ingasetshenziswa esilinganisweni samasampula ezinto eziphilayo.