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Iinjineli kwiYunivesithi yaseRice ziguqula ngokuthe ngqo i-carbon monoxide ibe yi-acetic acid (ikhemikhali esetyenziswa kakhulu enika iviniga incasa enamandla) nge-reactor eqhubekayo ye-catalytic, enokusebenzisa ngokufanelekileyo umbane ohlaziyekayo ukuvelisa iimveliso ezicociweyo kakhulu.
Inkqubo ye-electrochemical kwilebhu yeenjineli zeekhemikhali kunye ne-biomolecular kwiSikolo soBunjineli saseBrown kwiYunivesithi yaseRice isombulule ingxaki yemizamo yangaphambili yokunciphisa i-carbon monoxide (CO) ibe yi-acetic acid. Ezi nkqubo zifuna amanyathelo ongezelelweyo okucoca imveliso.
Le reactor inobuhlobo nokusingqongileyo isebenzisa i-nanometer cubic copper njengesixhobo esiphambili kunye ne-electrolyte eqinileyo eyahlukileyo.
Kwiiyure ezili-150 zokusebenza kwelebhu ngokuqhubekayo, umxholo we-acetic acid kwisisombululo samanzi esenziwe sesi sixhobo wawufikelela kwi-2%. Ubunyulu benxalenye ye-asidi bufikelela kwi-98%, nto leyo engcono kakhulu kunenxalenye ye-asidi eveliswe yimizamo yokuqala yokuguqula i-carbon monoxide ibe yi-fuel engamanzi.
I-acetic acid isetyenziswa njengesithinteli kwizicelo zonyango kunye neviniga kunye nokunye ukutya. Isetyenziswa njengesinyibilikisi se-inki, iipeyinti kunye neengubo; ekuvelisweni kwe-vinyl acetate, i-vinyl acetate yindlela yokuqala yeglue emhlophe eqhelekileyo.
Inkqubo yeRice isekelwe kwi-reactor ekwilebhu kaWang kwaye ivelisa i-formic acid kwi-carbon dioxide (CO2). Olu phando lubeke isiseko esibalulekileyo kuWang (osandula ukumiselwa nguPackard Fellow), owafumana isibonelelo seNational Science Foundation (NSF) se-$2 yezigidi ukuze aqhubeke nokuphonononga iindlela zokuguqula iigesi zegreenhouse zibe ngamafutha angamanzi.
UWang uthe: “Siphucula iimveliso zethu ukusuka kwi-formic acid yekhemikhali enye yekhabhoni ukuya kwi-two-carbon chemical substance, nto leyo eba nzima ngakumbi.” “Abantu bavelisa i-acetic acid kwii-electrolytes ezingamanzi, kodwa basasebenza kakubi kwaye iimveliso ziyingxaki yokwahlulwa kwe-electrolyte.”
USenftle wongeze wathi: “Ewe kona, i-acetic acid ayisoloko yenziwe kwi-CO okanye kwi-CO2.” “Nantsi ingongoma: sifunxa igesi emdaka esifuna ukuyinciphisa size siyiguqule ibe ziimveliso eziluncedo.”
Kwenziwa udibaniso olucokisekileyo phakathi kwe-copper catalyst kunye ne-solid electrolyte, kwaye i-solid electrolyte yadluliselwa kwi-formic acid reactor. UWang uthe: “Ngamanye amaxesha i-copper iya kuvelisa iikhemikhali ngeendlela ezimbini ezahlukeneyo.” “Inokunciphisa i-carbon monoxide ibe yi-acetic acid kunye notywala. Siyile i-cube enobuso obunokulawula udibaniso lwe-carbon-carbon, kwaye imiphetho ye-carbon-carbon coupling ikhokelela kwi-acetic acid kunezinye iimveliso.”
Imodeli yokubala kaSenftle neqela lakhe incede ekuphuculeni imo yetyhubhu. Uthe: “Siyakwazi ukubonisa uhlobo lwemiphetho kwityhubhu, ngokuyintloko eyimiphezulu erhabaxa ngakumbi. Zinceda ekuphuleni izitshixo ezithile ze-CO, ukuze imveliso ikwazi ukuguqulwa ngandlela thile.” Iindawo ezininzi zomphetho zinceda ekuphuleni unxibelelwano olufanelekileyo ngexesha elifanelekileyo.”
USenftler uthe le projekthi ibonisa indlela ekufanele kudityaniswe ngayo ithiyori kunye novavanyo. Uthe: “Ukususela ekudityanisweni kwezinto kwi-reactor ukuya kwindlela yokusebenza kwinqanaba le-athomu, lo ngumzekelo omhle wamanqanaba amaninzi obunjineli.” “Ihambelana nomxholo we-nanotechnology yeemolekyuli kwaye ibonisa indlela esinokuyandisa ngayo kwizixhobo zehlabathi lokwenyani.”
UWang uthe inyathelo elilandelayo ekuphuhlisweni kwenkqubo enokwandiswa kukuphucula uzinzo lwenkqubo kunye nokunciphisa ngakumbi amandla afunekayo kule nkqubo.
Abafundi abaphumelele izidanga kwiYunivesithi yaseRice uZhu Peng, uLiu Chunyan kunye noXia Chuan, uJ. Evans Attwell-Welch, umphandi we-postdoctoral, ngumntu ophambili ophethe iphepha.
Ungaqiniseka ukuba abasebenzi bethu bokuhlela baya kujonga ngokusondeleyo yonke ingxelo ethunyelweyo kwaye baya kuthatha amanyathelo afanelekileyo. Uluvo lwakho lubaluleke kakhulu kuthi.
Idilesi yakho ye-imeyile isetyenziselwa kuphela ukwazisa umamkeli ukuba ngubani othumele i-imeyile. Idilesi yakho okanye idilesi kamamkeli ayizukusetyenziselwa nayiphi na enye injongo. Ulwazi olufakileyo luya kuvela kwi-imeyile yakho, kodwa i-Phys.org ayizukuyigcina ikwimo yayo.
Thumela uhlaziyo lweveki nganye kunye/okanye lwemihla ngemihla kwibhokisi yakho yemiyalezo engenayo. Ungazikhupha nanini na, kwaye asisayi kuze sabelane ngeenkcukacha zakho nabantu besithathu.
Le webhusayithi isebenzisa iikuki ukunceda ekuqhubekeni, ukuhlalutya indlela osebenzisa ngayo iinkonzo zethu kunye nokubonelela ngomxholo ovela kubantu besithathu. Ngokusebenzisa iwebhusayithi yethu, uqinisekisa ukuba uyifundile kwaye uyayiqonda imigaqo-nkqubo yethu yabucala kunye nemigaqo yokusebenzisa.