Tlhaloso:
Lebitso | Phatlalatso ea Nano Platinum |
Foromo | Pt |
Lisebelisoa tse sebetsang | Pt nanoparticles |
Diameter | ≤20nm |
Ho tsepamisa maikutlo | 1000ppm (Haeba u khetha mahloriso a mang kapa boholo, amohela ho botsa ka litšebeletso tsa hau) |
Ponahalo | mokelikeli o motsho |
Sephutheloana | 500g, 1kg ka libotlolong tsa polasetiki.5kg, 20kg ka meropa |
Lisebelisoa tse ka bang teng | Fuel cell catalyst, joalo-joalo |
Tlhaloso:
Nano-platinum ke mohloli o ka ntlafatsang katleho ea liphetoho tse ling tsa bohlokoa tsa lik'hemik'hale.Lisebelisoa tsa electrocatalytic tse tšehelitsoeng ka carbon tse tšehetsoeng ke carbon li 'nile tsa sebelisoa haholo ho fokotsa cathode le karabelo ea anodic oxidation ea lisele tsa mafura.
Methanol fuel cell ke proton exchange membrane fuel cell e sebelisang methanol joalo ka mafura a metsi.Ha e na melemo feela ea mehloli e mengata ea mafura, theko e tlaase, polokelo e loketseng le e sireletsehileng le lipalangoang, empa hape methanol e na le matla a mangata a matla 'me e hohetse tlhokomelo e atileng.Leha ho le joalo, nts'etsopele ea lisele tsa mafura a methanol e lekanyelitsoe ke ho lieha ho arabela ka kinetics ea anode methanol reaction le ho ba le ts'oaetso ea chefo ea tšepe ea platinum catalyst, 'me hoa hlokahala ho eketsa phallo ea platinum.Ka hona, palo ea libaka tse pepeneneng tse sebetsang le sebopeho sa bokaholimo, sebopeho le tlhophiso ea athomo ea catalyst li bohlokoa haholo ho ntlafatsa sekhahla sa ts'ebeliso ea platinum le ts'ebetso e matla.Hona joale, ho na le palo e kholo ea lipatlisiso tse tsepamisitseng maikutlo ho hlahloba litšepe tse fapaneng tsa phetoho le platinum ho etsa li-alloys kapa li-catalyst tsa heterostructure ho fetola sebopeho sa elektronike sa platinum ho finyella morero oa ho fokotsa phallo ea platinum le ho eketsa tšebeliso ea platinum.
Nano platinum e ka boela ea sebelisoa e le li-sensor tsa electrochemical le li-biosensors ho lemoha tsoekere, hydrogen peroxide, formic acid le lintho tse ling.
Tlhokomeliso bakeng sa li-dispersions:
1. Ka kopo e tiisitsoe hantle 'me u e boloke sebakeng sa mocheso o tlase.
2. Ka kopo sebelisa li-dispersions haufinyane nakong ea khoeli ha u fumana thepa.
SEM: