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Onjiniyela be-Rice University batjhugulula ngqo i-carbon monoxide ibe yi-acetic acid (ikhemikhali esetjenziswa khulu enikela iviniga ukunambitheka okuqinileko) ngokusebenzisa i-reactor eragela phambili, engasebenzisa kuhle igezi evuselelekako ukukhiqiza imikhiqizo ehlanjululwe khulu.
Ikambiso ye-electrochemical elabhorethri yamakhemikhali nama-biomolecular e-Rice University's Brown School of Engineering irarulule umraro wemizamo yangaphambilini yokwehlisa i-carbon monoxide (CO) ibe yi-acetic acid. Iinqubo lezi zitlhoga amagadango angezelelweko ukuhlanza umkhiqizo.
I-reactor engalimazi ibhoduluko isebenzisa i-nanometer cubic copper njenge-catalyst ekulu kanye ne-electrolyte eqinileko ehlukileko.
Emahoreni ali-150 wokusebenza okuragela phambili kwelabhorethri, okuqukethwe kwe-acetic acid esixazululweni samanzi esikhiqizwa mtjhini lo bekufika ku-2%. Ubumsulwa bengcenye ye-esidi buphezulu ukuya ku-98%, okungcono khulu kunengcenye ye-esidi ekhiqizwa mzamo wokuthoma wokutjhugulula i-carbon monoxide ibe yi-liquid fuel.
I-acetic acid isetjenziswa njengesilondolozi eensetjenzisweni zezokwelapha kanye neviniga nokunye ukudla. Isetjenziswa njengesisombululo sama-inki, amapende kanye nokugcotshwa; ekukhiqizeni i-vinyl acetate, i-vinyl acetate yisandulela se-glue emhlophe ejwayelekileko.
Ikambiso ye-Rice isekelwe e-reactor elabhorethri ka-Wang begodu ikhiqiza i-formic acid evela ku-carbon dioxide (CO2). Irhubhululo leli labeka isisekelo esiqakathekileko ku-Wang (osanda kukhethwa njenge-Packard Fellow), owathola isibonelelo se-National Science Foundation (NSF) se-$2 yezigidi ukobana aragele phambili nokuhlolisisa iindlela zokutjhugulula amagesi we-greenhouse abe mafutha amanzi.
U-Wang wathi: "Sithuthukisa imikhiqizo yethu ukusuka kumakhemikhali anekhabhoni yinye ye-formic acid ukuya kumakhemikhali amabili, okuyinselele khulu." "Abantu bakhiqiza i-acetic acid ngama-electrolyte amanzi, kodwana isasebenza kumbi begodu imikhiqizo leyo mraro wokuhlukaniswa kwama-electrolyte."
U-Senftle wangezelela wathi: "Kuliqiniso, i-acetic acid kanengi ayikhiqizwa nge-CO nofana nge-CO2." "Iphuzu leli: sidonsa igesi engakalungi esifuna ukuyiphungula bese siyitjhugulula ibe mikhiqizo ewusizo."
Ukuhlanganiswa ngokutjheja kwenziwa hlangana ne-copper catalyst kanye ne-electrolyte eqinileko, begodu i-electrolyte eqinileko yadluliselwa ukusuka e-formic acid reactor. U-Wang wathi: "Kwesinye isikhathi ikhopha izokukhiqiza amakhemikhali ngeendlela ezimbili ezihlukileko." "Ingenza i-carbon monoxide ibe yi-acetic acid ne-alkhoholi. Senze i-cube enobuso obukwazi ukulawula ukuhlanganiswa kwekhabhoni-khabhoni, kanye namaphethelo wekhabhoni-khabhoni Ukuhlanganiswa kuholela ku-acetic acid kunokweminye imikhiqizo."
U-Senftle nemodeli yekhomphyutha yethimba lakhe basiza ukulungisa ijamo le-cube. Wathi: "Sikghona ukutjengisa umhlobo wamaphethelo we-cube, okuyindawo enama-corrugated. Irhelebha ukuphula ezinye iinkinobho ze-CO, ukwenzela bona umkhiqizo ungasetjenziswa ngendlela ethileko." Amasayithi amanengi asiza ukuqeda ukuhlobana ngesikhathi esifaneleko.”
U-Senftler wathi iphrojekthi le itjengisa kuhle bona itiyori nokulinga kufanele kuhlanganiswe njani. Wathi: "Kusukela ekuhlanganisweni kweengcenye ze-reactor ukuya endleleni ye-athomu, lesi sibonelo esihle samazinga amanengi wobunjiniyela." "Ifanelana nommongo wethekhnoloji yamamolekhyuli begodu itjengisa bona singayidlulisela njani kumadivayisi wephasi lamambala."
U-Wang wathi igadango elilandelako ekuthuthukiseni ihlelo elilinganisekako kukwenza ngcono ukuzinza kwehlelo begodu kwehlise amandla atlhogekako ehlelweni.
Abafundi be-Rice University u-Zhu Peng, u-Liu Chunyan no-Xia Chuan, u-J. Evans Attwell-Welch, umrhubhululi we-postdoctoral, ngumuntu omkhulu ophethe iphepha.
Ungaqiniseka bona abasebenzi bethu bokuhlela bazokuqalisisa yoke imibiko ethunyelweko begodu bazokuthatha amagadango afaneleko. Umbono wakho uqakatheke khulu kithi.
Ikheli lakho le-imeyili lisetjenziselwa ukwazisa umamukeli bona ngubani othume i-imeyili. Ikheli lakho namkha ikheli lomuntu owamukelako angeze lasetjenziselwa enye into. Ilwazi olifakako lizokuvela ku-imeyili yakho, kodwana i-Phys.org angeze yayigcina nganoma ngiyiphi indlela.
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Iwebhusayithi le isebenzisa amakhukhi ukusiza ukuzulazula, ukuhlaziya ukusebenzisa kwakho imisebenzi yethu nokunikela ngokuqukethwe okuvela kwabanye abantu. Ngokusebenzisa iwebhusayithi yethu, uqinisekisa bona ufunde begodu uzwisise umthethomgomo wethu wefihlo nemibandela yokusebenzisa.