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Mainjiniya paRice University vari kushandura carbon monoxide kuita acetic acid (kemikari inoshandiswa zvakanyanya inopa vhiniga kuravira kwakasimba) kuburikidza nechinhu chinosimudzira simba, chinogona kushandisa magetsi anogona kushandiswazve kugadzira zvigadzirwa zvakacheneswa zvakanyanya.
Maitiro emagetsi murabhoritari yemainjiniya emakemikari ne biomolecular paRice University's Brown School of Engineering akagadzirisa dambudziko rekuyedza kwakamboitwa kuderedza carbon monoxide (CO) kuita acetic acid. Maitiro aya anoda mamwe matanho ekuchenesa chigadzirwa.
Reactor iyi isingakuvadzi zvakatipoteredza inoshandisa nanometer cubic copper sechinhu chikuru chinobatsira uye electrolyte yakasimba yakasiyana.
Mumaawa zana nemakumi mashanu ekushanda kwerabhoritari nguva dzose, huwandu hweacetic acid mumvura inogadzirwa nemuchina uyu hwakasvika 2%. Kuchena kwechikamu cheasidhi kwakakwira kusvika 98%, izvo zviri nani kupfuura chikamu cheasidhi chinogadzirwa nekuedza kwekutanga kushandura carbon monoxide kuita mafuta emvura.
Acetic acid inoshandiswa semushonga wekuchengetedza mukurapa pamwe chete nevhiniga nezvimwe zvekudya. Inoshandiswa semushonga weinki, pendi uye machira; mukugadzira vinyl acetate, vinyl acetate ndiyo inotangira guruu jena rakajairika.
Maitiro eRice anobva pane reactor iri murabhoritari yaWang uye anogadzira formic acid kubva kucarbon dioxide (CO2). Tsvagiridzo iyi yakaisa hwaro hwakakosha kuna Wang (achangobva kugadzwa sePackard Fellow), uyo akagamuchira mari yeNational Science Foundation (NSF) yemadhora mamiriyoni maviri kuti arambe achitsvaga nzira dzekushandura magasi egreenhouse kuita mafuta emvura.
Wang akati: “Tiri kuvandudza zvigadzirwa zvedu kubva pakuva neasidhi yemakemikari ine kabhoni imwe chete kuenda kuasidhi yemakemikari ine kabhoni mbiri, izvo zvinonetsa zvikuru.” “Vanhu vanowanzogadzira acetic acid mu electrolytes dzemvura, asi vachiri kushanda zvisina kunaka uye zvigadzirwa zvacho zviri dambudziko rekuparadzaniswa kwe electrolyte.”
Senftle akawedzera kuti: “Ehe, acetic acid haiwanzogadzirwa kubva kuCO2 kana CO2.” “Iyi ndiyo pfungwa: tiri kutora gasi ratinoda kuderedza torishandura kuita zvigadzirwa zvinobatsira.”
Kubatana kwakanyatsoitwa pakati pe copper catalyst ne solid electrolyte, uye solid electrolyte yakatamiswa kubva ku formic acid reactor. Wang akati: "Dzimwe nguva copper inoburitsa makemikari nenzira mbiri dzakasiyana." "Inogona kuderedza carbon monoxide kuita acetic acid nealcohol. Takagadzira cube ine chiso chinogona kudzora carbon-carbon coupling, uye mipendero ye carbon-carbon coupling inotungamira ku acetic acid pane zvimwe zvigadzirwa."
Senftle nechikwata chake vakabatsira kunatsiridza chimiro checube. Akati: "Tinokwanisa kuratidza mhando yemipendero iri pacube, iyo inonyanya kunge iri pamusoro pemakomba. Inobatsira kupwanya mamwe makiyi eCO, kuitira kuti chigadzirwa chigone kushandiswa neimwe nzira." Nzvimbo dzakawanda dzemipendero dzinobatsira kupwanya chisungo chakakodzera panguva yakakodzera."
Senftler akati chirongwa ichi chinoratidza zvakanaka kuti dzidziso nekuyedza zvinofanira kubatanidzwa sei. Akati: "Kubva pakubatanidzwa kwezvikamu zviri mureactor kusvika kuatomu-level mechanism, uyu muenzaniso wakanaka wemazinga akawanda einjiniya." "Inoenderana nedingindira re molecular nanotechnology uye inoratidza kuti tingaiwedzera sei kumidziyo chaiyo."
Wang akati danho rinotevera mukugadzira sisitimu inogona kukura nderekuvandudza kugadzikana kwesisitimu uye kuderedza simba rinodiwa pakuita basa iri.
Vadzidzi vakapedza kudzidza paRice University, Zhu Peng, Liu Chunyan naXia Chuan, J. Evans Attwell-Welch, muongorori wepostdoctoral, ndiye munhu mukuru ari kutarisira bepa iri.
Munogona kuva nechokwadi chekuti vashandi vedu vekunyora nhau vachanyatso tarisa mhinduro dzese dzinotumirwa uye vachatora matanho akakodzera. Maonero enyu akakosha zvikuru kwatiri.
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Tumirai nhau dzevhiki nevhiki uye/kana dzezuva nezuva kubhokisi renyu rekutumira mameseji. Munogona kubvisa runyorwa rwenyu chero nguva, uye hatizombofi takagovana ruzivo rwenyu nevamwe vanhu.
Iyi webhusaiti inoshandisa makuki kuti ikubatsire kufamba, kuongorora mashandisiro ako masevhisi edu uye kupa zvemukati kubva kune vamwe vanhu. Nekushandisa webhusaiti yedu, unosimbisa kuti waverenga uye wanzwisisa mutemo wedu wekuchengetedza ruzivo uye mitemo yekushandisa.