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Deng inhinyero keng Rice University direkta lang mag convert keng carbon monoxide keng acetic acid (metung a maralas dang gagamitan a kemikal na mamye masikan a lasa keng suka) kapamilatan ning metung a continuous catalytic reactor, na malyaring gamitan ing renewable electricity para makagawa lang highly purified a produktu.
Ing prosesu ning electrochemical keng laboratoryu da reng chemical ampo biomolecular engineers keng Rice University's Brown School of Engineering mesolve ne ing problema da reng minunang pamagpursigi para mabawas ing carbon monoxide (CO) keng acetic acid. Deng prosesung deni mangailangan lang karagdagang lakbang para malinis ing produktu.
Ing environmentally friendly reactor gagamit yang nanometer cubic copper bilang main catalyst ampo metung a solidung electrolyte.
King 150 oras ning patuloy a operasyun ning laboratoryu, ing acetic acid content keng aqueous solution a gewa na niting kagamitan miras yang 2%. Ing kalinisan ning acid component anggang 98%, na mas masanting kesa keng acid component a megawa kareng minunang pamagpursigi para maging liquid fuel ing carbon monoxide.
Ing acetic acid magagamit ya bilang preservative keng medical applications kayabe ning suka ampo reng aliwang pamangan. Gagamitan ya bilang solvent para kareng tinta, pintura ampo coating; keng pamaglalang ning vinyl acetate, ing vinyl acetate ing manimuna keng ordinaryung maputing glue.
Ing prosesung Rice makabasi ya keng reactor keng laboratoryu nang Wang at magproduce yang formic acid ibat keng carbon dioxide (CO2). Ing pamanyaliksik ayni metung yang importanting pundasyun para kang Wang (bayung miyalal a Packard Fellow), a tinanggap $2 million a grant ning National Science Foundation (NSF) para isundu ing pamag-explore kareng paralan para maging liquid fuels ing greenhouse gases.
Sabi nang Wang: "I-upgrade mi la reng kekaming produktu ibat keng one-carbon chemical substance formic acid papunta keng two-carbon chemical substance, na mas masakit." "Ding tau tradisyunal lang gagawang acetic acid keng liquid electrolytes, pero atin la pa muring masanting a performance at deng produktu ila reng problema ning electrolyte separation."
Sinabi nang Senftle: "syempre, ing acetic acid keraklan e ya gagawan ibat keng CO o CO2." "Ini ing puntu: sisipsip tamu ing basura a gas a buri tamung mabawas at gagawan tamung kapakibatan a produktu."
Metung a maingat a pamisanmetung ing megawa king pilatan ning copper catalyst ampo ing solidung electrolyte, at ing solidung electrolyte mipalitan ya ibat king formic acid reactor. Sabi nang Wang: "Neng misan ing tansu magproduce yang kemikal keng adwang miyayaliwang dalan." "Malyari yang mabawas ing carbon monoxide keng acetic acid ampo alcohol. Dinisenyu mi ing cube a maki lupa na malyaring magkontrol keng carbon-carbon coupling, ampo reng gilid ning carbon-carbon Ing coupling magdalang acetic acid kesa kareng aliwang produktu."
I Senftle ampo ing computational model ning kayang grupu sinaup lang me-refine ing shape ning cube. Sabi na: "Apalyari ming ipakit ing uri da reng gilid ning cube, na mas corrugated a babo. Sasaup lang masira deng mapilan a CO keys, ban ing produktu malyari yang ma-manipulate king metung a paralan o aliwa." Deng dakal a edge sites makasaup lang masira ing ustung bond keng ustung oras.”
Sinabi nang Senftler na ing proyektu metung yang masanting a demonstrasyun nung makananu la dapat mikaugne deng teorya ampo ing eksperimentu. Sabi na: "Manibat keng pamisanmetung da reng sangkap keng reactor angga na keng atomic-level mechanism, metung yang masanting a alimbawa da reng dakal a antas ning engineering." "Iti makayagpang ya keng tema ning molecular nanotechnology at papakit na nung makananu ta yang a-extend kareng real-world devices."
Sinabi nang Wang na ing tutuking lakbang keng pamaglalang ning metung a sistemang scalable yapin ing pamagpabuti king katatagan ning sistema at lalu pang mabawas ing enerhiya a kailangan para king prosesu.
Deng estudyanti ning Rice University graduate Zhu Peng, Liu Chunyan ampo Xia Chuan, J. Evans Attwell-Welch, metung a postdoctoral researcher, ila reng manimunang taung manibala keng papel.
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