Ethyl cawv ncaj qha los ntawm carbon dioxide
Cov kws tshawb fawb ntawm Lub Tsev Haujlwm Saib Xyuas Hluav Taws Xob Oak Ridge National Laboratory hauv Tebchaws Meskas tau tsim cov txheej txheem kev hloov pauv carbon dioxide rau hauv ethyl cawv, piv txwv li ethanol, siv carbon thiab tooj liab nanoparticles. Cov kws tshawb fawb tau siv cov pa roj carbon-nitrogen-tooj liab catalyst uas siv hluav taws xob hluav taws xob los ua cov tshuaj lom neeg los thim rov qab cov txheej txheem combustion. Cov tsos ntawm cawv nyob rau hauv tus txheej txheem tuaj raws li ib tug surprise, vim hais tias nws yog tsis yooj yim sua kom tam sim ntawd mus los ntawm carbon dioxide rau ethanol siv ib tug catalyst.
Nrog kev pab los ntawm nanotechnology-raws li catalyst, ib tug tov ntawm carbon dioxide nyob rau hauv dej yog hloov mus rau ethanol nrog ib tug yield ntawm 63%. Feem ntau, hom tshuaj tiv thaiv electrochemical no tsim cov khoom sib txawv ntawm cov khoom me me. Txij li thaum catalysis tsawg heev thiab tsis muaj qhov tshwm sim, ethanol yog ntshiab kiag li. Nws tuaj yeem siv rau lub tshuab hluav taws xob. Thiab qhov zoo tshaj plaws ntawm txoj kev no yog tias tag nrho cov txheej txheem yuav siv qhov chaw ntawm chav tsev kub.
Kev tsim kho tshiab ntawm cov catalyst yog ua raws li nws cov qauv nanoscale, suav nrog tooj liab nanoparticles kos rau hauv ib qho ntxhib, spiky carbon nto. Cov kws tshawb fawb 'kev soj ntsuam ua ntej qhia tau hais tias qhov nyuaj ntawm qhov kev ntxhib los mos ntawm cov catalyst muab cov kev cuam tshuam sab txaus los pab txhawb kev hloov pauv ntawm carbon dioxide rau ethanol. Txoj kev no tuaj yeem tshem tawm kev siv cov khoom kim heev thiab tsis tshua muaj hlau xws li platinum, uas txwv kev ua haujlwm ntawm ntau cov catalysts. Cov kws tshawb fawb tab tom npaj kev tshawb fawb ntxiv hauv cheeb tsam no txhawm rau txhim kho thiab txhim kho kev tsim khoom thiab nkag siab txog cov khoom thiab tus cwj pwm ntawm catalyst.
