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Onjiniyela eRice University baguqula ngqo i-carbon monoxide ibe yi-acetic acid (ikhemikhali esetshenziswa kabanzi enikeza uviniga ukunambitheka okunamandla) nge-reactor eqhubekayo ye-catalytic, engasebenzisa kahle ugesi ovuselelekayo ukukhiqiza imikhiqizo ehlanziwe kakhulu.
Inqubo ye-electrochemical elabhorethri yonjiniyela bamakhemikhali kanye ne-biomolecular e-Brown University's Brown School of Engineering ixazulule inkinga yemizamo yangaphambilini yokunciphisa i-carbon monoxide (CO) ibe yi-acetic acid. Lezi zinqubo zidinga izinyathelo ezengeziwe zokuhlanza umkhiqizo.
I-reactor enobungani nemvelo isebenzisa ithusi eliyi-nanometer cubic njenge-catalyst eyinhloko kanye ne-electrolyte eqinile eyingqayizivele.
Emahoreni angu-150 okusebenza okuqhubekayo kwelabhorethri, okuqukethwe kwe-acetic acid kusisombululo samanzi esikhiqizwe yile mishini kwafinyelela ku-2%. Ubumsulwa bengxenye ye-asidi bufinyelela ku-98%, okungcono kakhulu kunengxenye ye-asidi ekhiqizwe yimizamo yokuqala yokuguqula i-carbon monoxide ibe uphethiloli owuketshezi.
I-Acetic acid isetshenziswa njengesivikelo ezisetshenziswa kwezokwelapha kanye noviniga nokunye ukudla. Isetshenziswa njengesinyibilikisi sama-inki, upende kanye nopende; ekukhiqizweni kwe-vinyl acetate, i-vinyl acetate iyisandulela seglue elimhlophe elivamile.
Inqubo yelayisi isekelwe ku-reactor elabhorethri kaWang futhi ikhiqiza i-formic acid kusuka ku-carbon dioxide (CO2). Lolu cwaningo lwabeka isisekelo esibalulekile kuWang (uPackard Fellow osanda kuqokwa), owathola isibonelelo seNational Science Foundation (NSF) samaRandi ayizigidi ezimbili ukuze aqhubeke nokuhlola izindlela zokuguqula amagesi okushisa aba uphethiloli abe uphethiloli oketshezi.
UWang uthe: “Sithuthukisa imikhiqizo yethu kusuka ku-formic acid yekhemikhali enekhabhoni eyodwa kuya ku-two-carbon chemical substance, okuyinto enzima kakhulu.” “Abantu bavame ukukhiqiza i-acetic acid kuma-electrolyte aketshezi, kodwa basasebenza kabi futhi imikhiqizo iyinkinga yokuhlukaniswa kwama-electrolyte.”
USenftle wengeze wathi: “Yebo, i-acetic acid ngokuvamile ayikhiqizwa kusuka ku-CO noma i-CO2.” “Nansi iphuzu: simunca igesi engcolile esifuna ukuyinciphisa bese siyiguqula ibe imikhiqizo ewusizo.”
Kwenziwa ukuhlanganiswa ngokucophelela phakathi kwe-catalyst yethusi kanye ne-electrolyte eqinile, kwathi i-electrolyte eqinile yadluliselwa kusuka ku-reactor ye-formic acid. UWang uthe: “Ngezinye izikhathi ithusi lizokhiqiza amakhemikhali ngezindlela ezimbili ezahlukene.” “Linganciphisa i-carbon monoxide ibe yi-acetic acid kanye notshwala. Saklama i-cube enobuso obungalawula ukuhlanganiswa kwe-carbon-carbon, kanye nemiphetho ye-carbon-carbon Ukuhlanganiswa kuholela ku-acetic acid kuneminye imikhiqizo.”
Imodeli yokubala kaSenftle nethimba lakhe isize ekulungiseni ukuma kwekhiyubhu. Uthe: “Siyakwazi ukukhombisa uhlobo lwemiphetho kukhiyubhu, okuyizindawo ezimbozwe kakhulu. Zisiza ekuphuleni okhiye abathile be-CO, ukuze umkhiqizo ukwazi ukuphathwa ngendlela ethile.” Izindawo eziningi zomphetho zisiza ekuphuleni isibopho esifanele ngesikhathi esifanele.”
USenftler uthe lo msebenzi uwukubonakaliswa okuhle kokuthi ithiyori kanye nokuhlolwa kufanele kuxhunywe kanjani. Uthe: “Kusukela ekuhlanganisweni kwezingxenye ku-reactor kuya ku-mechanism yezinga le-athomu, lokhu kuyisibonelo esihle samazinga amaningi obunjiniyela.” “Kufanelana nesihloko se-nanotechnology yama-molecule futhi kukhombisa ukuthi singayandisa kanjani kumadivayisi angempela.”
UWang uthe isinyathelo esilandelayo ekuthuthukisweni kohlelo olukwazi ukulinganiswa ukuthuthukisa ukuzinza kohlelo nokunciphisa amandla adingekayo kule nqubo.
Abafundi abaphothule eRice University uZhu Peng, uLiu Chunyan noXia Chuan, uJ. Evans Attwell-Welch, umcwaningi we-postdoctoral, ungumuntu oyinhloko ophethe iphepha.
Ungaqiniseka ukuthi abasebenzi bethu bokuhlela bazoqapha ngokucophelela yonke impendulo ethunyelwe futhi bazothatha isinyathelo esifanele. Umbono wakho ubaluleke kakhulu kithi.
Ikheli lakho le-imeyili lisetshenziselwa kuphela ukwazisa umamukeli ukuthi ngubani othumele i-imeyili. Ikheli lakho noma ikheli lomamukeli ngeke lisetshenziswe nganoma iyiphi enye injongo. Ulwazi olufakayo luzovela ku-imeyili yakho, kodwa i-Phys.org ngeke ilugcine nganoma iyiphi indlela.
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