Cells rau formic acid
Lub theoretical efficiency ntawm kev hloov tshuaj zog rau hauv hluav taws xob lub zog hauv cov roj hlwb tuaj yeem ncav cuag 100%. Feem pua, tab sis kom deb li deb qhov zoo tshaj plaws ntawm lawv yog hydrogen - lawv muaj kev ua tau zoo txog li 60%. Lawv yog cov pheej yig, sib dua dua li yav dhau los thiab, tsis zoo li cov roj teeb li qub, muab kev ua haujlwm tas mus li. Nws yog ib qho tsim nyog yuav tsum nco ntsoov tias qhov ua tau zoo ntawm cov tshuab hluav taws xob qis hauv combustion tsuas yog kwv yees li 100% -? hais tias Dr. Hub. Lus Askiv Andrzej Borodzinski los ntawm IPC PAS.
Lub cell roj yog ib yam khoom siv uas hloov tshuaj lub zog rau hauv hluav taws xob. Tam sim no yog generated ncaj qha los ntawm cov roj combustion nyob rau hauv lub xub ntiag ntawm catalysts siv nyob rau hauv lub anode thiab cathode ntawm lub cell. Qhov teeb meem loj tshaj plaws rau kev nrov ntawm cov hlwb hydrogen yog qhov cia ntawm hydrogen. Qhov teeb meem no tau ua pov thawj tias nyuaj heev los ntawm qhov kev pom zoo thiab tseem tsis tau daws nrog cov kev daws teeb meem txaus siab. Sib tw nrog hydrogen cells yog methanol cells. Txawm li cas los xij, methanol nws tus kheej yog cov tshuaj lom, thiab cov khoom siv uas siv nws yuav tsum tau tsim los ntawm cov khoom siv kim platinum catalysts. Tsis tas li ntawd, cov hlwb methanol muaj lub zog qis thiab ua haujlwm ntawm qhov siab, thiab yog li ntawd qhov kub thiab txias (kwv yees li 90 degrees).
Lwm txoj kev daws yog formic acid roj hlwb. Cov tshuaj tiv thaiv tau tshwm sim hauv chav tsev kub, thiab qhov ua tau zoo thiab lub zog ntawm lub xov tooj ntawm tes tau meej meej siab dua li cov methanol. Tsis tas li ntawd, formic acid yog ib yam khoom uas yooj yim khaws cia thiab thauj. Txawm li cas los xij, kev ua haujlwm ruaj khov ntawm formic acid cell yuav tsum muaj qhov ua tau zoo thiab ruaj khov. Lub catalyst Ameslikas tsim los ntawm peb muaj kev ua haujlwm qis dua li cov ntshiab palladium catalysts siv kom deb li deb. Txawm li cas los xij, qhov sib txawv ploj tom qab ob teev ua haujlwm. Tau zoo dua. Thaum qhov kev ua ntawm cov ntshiab palladium catalyst tseem poob qis, peb qhov ruaj khov, "hais tias Dr. Borodzinsky.
Qhov kom zoo dua ntawm cov catalyst tsim ntawm IPC surfactant, uas yog tshwj xeeb tshaj yog ib qho tseem ceeb los ntawm ib tug economic point ntawm view, yog hais tias nws khaws nws cov khoom thaum ua hauj lwm nyob rau hauv tsawg-purity formic acid. Hom formic acid no tuaj yeem tsim tau yooj yim hauv ntau qhov ntau, suav nrog los ntawm biomass, yog li roj rau cov hlwb tshiab tuaj yeem pheej yig heev. Biomass-derived formic acid yuav yog cov roj ntsuab tag. Cov khoom ntawm cov tshuaj tiv thaiv tshwm sim nrog nws kev koom tes hauv cov roj hlwb yog dej thiab carbon dioxide. Cov tom kawg yog lub tsev cog khoom roj, tab sis biomass tau los ntawm cov nroj tsuag uas nqus nws thaum lawv loj hlob. Yog li ntawd, kev tsim cov formic acid los ntawm biomass thiab nws cov kev siv hauv cov hlwb yuav tsis hloov cov pa roj carbon dioxide hauv cov huab cua. Qhov kev pheej hmoo ntawm kev ua qias tuaj ib puag ncig los ntawm formic acid kuj tsawg.
Formic acid roj hlwb yuav pom ntau daim ntawv thov. Puas yog lawv cov nqi hluav taws xob tshwj xeeb hauv cov khoom siv hluav taws xob portable? mobile xov tooj, laptops, GPS. Cov ntsiab lus no tseem tuaj yeem raug teeb tsa los ua qhov chaw siv hluav taws xob rau cov tsheb xws li lub rooj zaum muaj log mus rau lub tsheb kauj vab hluav taws xob thiab yachts.
Ntawm IPC PAS, kev tshawb fawb tam sim no pib ntawm thawj lub roj teeb uas tsim los ntawm cov roj ntsha formic acid. Cov kws tshawb fawb cia siab tias tus qauv ntawm cov khoom lag luam yuav tsum tau npaj nyob rau hauv ob peb xyoos.
raws li cov ntaub ntawv ntawm lub koom haum ntawm Physical Chemistry PAN
