Inkcazo:
Igama | Nano Platinum Ukusasazwa |
Ifomula | Pt |
Izithako ezisebenzayo | Pt nanoparticles |
Ububanzi | ≤20nm |
Ukugxininisa | 1000ppm (Ukuba ukhetha olunye ugxininiso okanye ubungakanani, wamkelekile ukuba ubuze wenze inkonzo ngokwezifiso) |
Imbonakalo | ulwelo olumnyama |
Iphakheji | 500g, 1kg kwiibhotile zeplastiki.5kg, 20kg emigqomeni |
Usetyenziso olunokwenzeka | I-fuel cell catalyst, njl |
Inkcazo:
I-Nano-platinum yi-catalyst enokuphucula ukusebenza kakuhle kwezinye iikhemikhali ezibalulekileyo.Izixhobo ze-electrocatalytic ezisekelwe kwi-Carbon ezisekelwe kwi-Carbon zisetyenziswe ngokubanzi ekunciphiseni i-cathode kunye nokuphendula kwe-anodic oxidation yeeseli zamafutha.
I-Methanol fuel cell yiproton yotshintshiselwano lwemembrane yeseli esebenzisa i-methanol njengolwelo lwamafutha.Ayinayo nje inzuzo yemithombo eninzi yamafutha, ixabiso eliphantsi, ukugcinwa ngokufanelekileyo kunye nokukhuselekileyo kunye nokuthutha, kodwa kunye ne-methanol inoxinano lwamandla kwaye iye yatsala ingqalelo ngokubanzi.Nangona kunjalo, uphuhliso lweeseli zamafutha e-methanol lulinganiselwe yi-kinetics yokuphendula ngokukhawuleza kwe-anode ye-methanol reaction kunye nokuba sengozini kwityhefu ye-catalyst ye-metal platinum, kwaye kuyimfuneko yokunyusa ukulayisha kweplatinam.Ke ngoko, inani leendawo eziveziweyo ezisebenzayo kunye nesakhiwo somphezulu, ukwakheka kunye nokulungelelaniswa kwe-athomu ye-catalyst kubaluleke kakhulu ekuphuculeni izinga lokusetyenziswa kweplatinam kunye nokusebenza kwe-catalytic.Okwangoku, kukho ubuninzi bophando olujoliswe ekuhloleni isinyithi esitshintshileyo esihlukeneyo kunye neplatinam ukwenza i-alloys okanye i-heterostructure catalysts ukuguqula isakhiwo se-elektroniki seplatinam ukufezekisa injongo yokunciphisa i-platinum yokulayisha kunye nokwandisa ukusetyenziswa kweplatinum.
I-Nano platinum ingasetyenziswa njenge-electrochemical sensors kunye ne-biosensors ukubona i-glucose, i-hydrogen peroxide, i-asidi ye-formic kunye nezinye izinto.
Inqaku losasazo:
1. Nceda itywinwe kwaye uyigcine kwindawo yobushushu obuphantsi.
2. Nceda usebenzise i-dispersions ngokukhawuleza kwinyanga enye emva kokufumana iimpahla.
I-SEM :