Kev huv thiab muaj txiaj ntsig hydrogen ntau lawm tau ntev tau cuam tshuam los ntawm cov txheej txheem kim thiab tsis muaj txiaj ntsig. Txawm li cas los xij, ib pawg ntawm cov kws tshawb fawb los ntawm ib lub tsev kawm ntawv nto moo tuaj yeem pom muaj kev daws teeb meem los ntawm kev rov ua cov khoom pov tseg hlau rau hauv hydrogen catalysts.
Pab pawg ntawm cov kws tshawb fawb tau tsim ib txoj hauv kev los hloov cov khoom pov tseg hlau rau hauv catalysts rau hydrogen ntau lawm ntawm dej. Lawv txoj kev tawg tau los ntawm kev tshawb pom tias qhov chaw ntawm cov khoom lag luam los ntawm kev lag luam hlau, hu ua hlau shavings, muaj nanoscale micro-steps thiab groove textures.
Siv cov tshuab ntsuas hluav taws xob ntsuas hluav taws xob, cov kws tshawb fawb tau tshuaj xyuas qhov chaw du ntawm titanium, stainless hlau, thiab nickel alloy shavings. Ua rau lawv xav tsis thoob, lawv pom tias qhov chaw tsis du tab sis muaj "grooves thiab ridges uas tsuas yog kaum ntawm nanometers dav." Nws mam li kaj ntug rau lawv tias qhov no "nano-textured nto tuaj yeem muab cov sijhawm tshwj xeeb rau kev tsim cov electrocatalysts".
Harnessing Tswj Magnetron Sputtering rau Hydrogen Production
Nrog kev pab los ntawm kev tswj cov magnetron sputtering, cov kws tshawb fawb tau tso platinum atoms mus rau qhov chaw ntawm cov hlau pov tseg, ua rau "dag" ntawm platinum atoms ntawm cov shavings 'qhov chaw. Cov atoms sib sau ua ke rau hauv nanoparticles, seamlessly haum rau hauv cov grooves me me ntawm cov khib nyiab hlau.
Nqi-zoo thiab ruaj khov, tab sis yog hlau khib nyiab teb?
Zoo li feem ntau cov kev tshawb fawb hydrogen ntau lawm, tsuas yog lub sijhawm yuav qhia tias cov khoom siv hlau pov tseg no yuav ua li cas rau lwm txoj hauv kev los ntawm cov txheej txheem platinum. Qhov tseeb yog tias lub ntiaj teb cov khoom siv ntawm platinum raug txwv thiab dhau los ua kim dua vim nws tsis tshua muaj. Txawm hais tias nws yog hlau shavings lossis lwm yam kev xaiv, yav tom ntej kev lag luam loj loj ntawm hydrogen tsis tuaj yeem cia siab rau platinum lossis cov hlau tsis tshua muaj nqi. Nws xav tau ib qho catalyst uas sib npaug, ruaj khov, muaj txiaj ntsig, nplua nuj, thiab ruaj khov.
