Iintsimbi zeplatinum zibandakanya iplatinam (Pt), irhodium (Rh), palladium (Pd), ruthenium (Ru), osmium (Os), kunye ne-iridium (Ir), ezizezentsimbi ezixabisekileyo njengegolide (Au) kunye nesilivere (Ag) . Zinebhondi zeathom ezomeleleyo ngokugqithisileyo, kwaye ke ngoko zinamandla amakhulu okudibanisa i-interatomic kunye nobuninzi bobuninzi. Inani leathom yolungelelwaniso lwalo lonke iqela lesinyithi leplatinam yi-6, emisela iimpawu zabo ezizodwa kunye neekhemikhali. Iintsimbi zeqela lePlatinam zineendawo eziphezulu zokunyibilika, ukuhamba kakuhle kombane kunye nokumelana nokugqwala, amandla obushushu obuphezulu kunye nokumelana nokunyuka kweqondo lobushushu eliphezulu, kunye nokuzinza okuhle kobushushu obuphezulu. Ezi mpawu zibenza zibe zixhobo ezibalulekileyo kumashishini anamhlanje kunye nokwakhiwa kokhuselo lwelizwe, olusetyenziswa ngokubanzi kwi-aviation, i-aerospace, iirokethi, amandla e-athomu, iteknoloji ye-microelectronics, ikhemikhali, iglasi, ukuhlanjululwa kwegesi kunye namashishini e-metallurgical, kunye nendima yabo kumashishini aphakamileyo aphezulu. Ke ngoko, yaziwa ngokuba yi "vitamin" kunye "nentsimbi entsha yanamhlanje" yoshishino lwanamhlanje.
Kwiminyaka yakutshanje, iintsimbi zeqela leplatinam ziye zasetyenziswa kakhulu kumashishini anje ngemoto kunye nokucocwa kombhobho wesithuthuthu, iiseli zepetroli, amashishini ombane kunye nombane, izinto zamazinyo kunye nobucwebe. Kwinkulungwane yama-21 ecela umngeni, uphuhliso lwezixhobo zesinyithi zeqela leplatinam luthintela ngokuthe ngqo isantya sophuhliso lwala mabala obuchwepheshe obuphezulu, kwaye luchaphazela ngqo isikhundla samazwe ngamazwe kuqoqosho lwehlabathi.
Umzekelo, uphando malunga nokuziphatha kwe-electrocatalytic oxidation yeemolekyuli ezincinci ze-organic ezifana ne-methanol, i-formaldehyde, kunye ne-asidi ye-formic, enokuthi isetyenziswe njengeeseli ze-fuel yi-nano platinum catalysts inazo zombini ukubaluleka kophando olusisiseko lwethiyori kunye namathemba osetyenziso olubanzi. Uphononongo lubonise ukuba ezona zixhobo ziphambili ezinomsebenzi othile we-electrocatalytic oxidation kwiimolekyuli ezincinci zezinto eziphilayo uninzi lweplatinam ziintsimbi ezibekekileyo.
I-Hongwu Nano ikhethekileyo kwimveliso ye-nano yentsimbi exabisekileyo kwiminyaka eyi-15, kubandakanywa kodwa ingaphelelanga kwi-nano platinum, i-iridium, i-ruthenium, i-rhodium, isilivere, i-palladium, igolide. Ngokuqhelekileyo kubonelelwa kwifom yepowder, ukusabalalisa kunokwenziwa ngokwezifiso, kwaye ubungakanani beqhekeza bunokulungelelaniswa ngokweemfuno ezithile.
Iinanoparticles zePlatinam, 5nm, 10nm, 20nm, ...
IPlatin carbon Pt/C, Pt 10%, 20%, 50%, 75%...
Ixesha lokuposa: Jun-14-2023