Ultrasonic Graphene ntau lawm

1. Acoustic Chemistry yog ib qho tshiab, tshwj xeeb tshaj yog hais txog kev siv ultrasound los ua kom ceev cov tshuaj lom neeg cov tshuaj tiv thaiv los yog ua rau cov kab mob tshiab ua rau kom cov qoob loo ntawm cov tshuaj lom neeg los yog nkag mus rau cov khoom tshuaj tshiab tshuaj. Lub ntsiab tsav quab yuam ntawm sonochemical cov tshuaj tiv thaiv los ntawm acoustic cavitation, uas los ntawm huab xeeb rau cov neeg mob xws li kub (tshaj 5 000 K), siab siab (ntau tshaj 2.03 × 108 Pa), shock wave los micro-jet nrog los ntawm cavitation npuas implosion.

2. Kev siv cov tshuaj hu ua "Acoustic Chemistry" muaj ntau hom kev sau ntawv thiab muaj peev xwm ua kom ncaj qha mus ua 9 lub ntsiab lus: biochemistry, analytical chemistry, catalysis, electrochemistry, photochemistry, environmental chemistry, pob zeb tsim tshuaj, extraction thiab kev sib cais, Synthesis thiab degradation.

3. Ultrasonic tsis nyob rau hauv cov kua nruab nrab, los ntawm kev txiav txim txhua yam, cavitation thiab thermal teebmeem, uas ua rau cov neeg kho tshuab, thermal, kho qhov muag, hluav taws xob thiab tshuaj. Tshwj xeeb yog high-power ultrasound, yuav tsim ib lub luag hauj lwm muaj zog hauv cavitation, uas nyob rau hauv lub zos tsim ntawm instantaneous high kub, high pressure, nqus thiab micro-jet. Ultrasound tshuab, ua ib lub cuab yeej lub cev thiab cuab tam, tsim ib co kev nyob ze rau huab cua hauv cov xov xwm feem ntau siv tshuaj lom neeg cov tshuaj uas tsis tsuas yog kev sib tw lossis txhawb ntau yam tshuaj lom neeg, ua kom cov tshuaj muaj zog, tab sis kuj hloov qee qhov kev coj ntawm cov tshuaj tiv thaiv ua rau qee qhov kev tshwm sim tsis pom tseeb thiab txuj ci tseem ceeb. Feem ntau ntseeg tias qhov tshwm sim ntawm cov phenomena mas vim cov neeg kho tshuab thiab cov cavitation ultrasonic cavitation yog tias lawv hloov cov tshuaj tiv thaiv thiab qhov tshwm sim ntawm thaj chaw. Cov teebmeem txhua yam - kev qhia txog ultrasound rau cov tshuaj tiv thaiv kev ua haujlwm, cov ntaub ntawv ultrasonic tuaj yeem tsim kev kub ntxhov yuam kev, ua rau ib txoj kev quab yuam kom ceev cov ntaub ntawv hloov, diffusion, siv cov khoom siv nplawm, cov khoom yuav tsum stripped ntawm qhov chaw, thiaj li hais tias lub interface hloov tshiab. Cavitation - Qee qhov, cov cim ntawm ultrasound teebmeem tau ua nrog lub tswv yim ntawm cavitation, uas yog lub zog ntawm lub zog ntawm lub zog uas tshwm sim nrog cov kab npuas (kab noj) nyob rau hauv cov kua hauv lub suab ntawm lub suab tsis muaj Cov txheej txheem kawm: oscillation, expansion , contraction thiab txawm cev qhuav dej. Tshwm sim hauv cavitation, lub xeev cov kua hauv lub zos cov kev hloov loj tshwm sim, yuav tsim huab kub thiab siab siab. Nws muab ib qho chaw tshwj xeeb tshiab thiab muaj lub cev tshwj xeeb rau lub cev tshuaj tiv thaiv rau cov tshuaj lom neeg uas tsis yooj yim lossis tsis yooj yim raws li cov xwm txheej.