Ofufuza a VCU apeza chothandizira chothandiza pakusintha kwa carbon dioxide kukhala formic acid mu thermochemical - zomwe zapezeka zomwe zingapereke njira yatsopano yopezera carbon yomwe ingachedwetsedwe pamene dziko lapansi likulimbana ndi kusintha kwa nyengo. Chothandizira chofunikira kwambiri cha carbon dioxide mumlengalenga.
"Ndizodziwika bwino kuti kukula mofulumira kwa mpweya woipa m'mlengalenga ndi zotsatira zake zoipa pa chilengedwe ndi chimodzi mwa mavuto akuluakulu omwe anthu akukumana nawo masiku ano," anatero wolemba wamkulu Dr. Shiv N. Khanna, Pulofesa wa Commonwealth Emeritus mu dipatimenti ya sayansi ya zamoyo ku Faculty of Humanities VCU. "Kusintha kwa CO2 kukhala mankhwala othandiza monga formic acid (HCOOH) ndi njira ina yotsika mtengo yochepetsera zotsatira zoyipa za CO2. Formic acid ndi madzi owopsa pang'ono omwe ndi osavuta kunyamula ndikusunga kutentha kozungulira. Ingagwiritsidwenso ntchito ngati mankhwala owonjezera phindu, chonyamulira chosungira haidrojeni, komanso cholowa m'malo mwa mafuta a fossil mtsogolo."
Hanna ndi katswiri wa sayansi ya zamoyo wa VCU Dr. Turbasu Sengupta adapeza kuti magulu omangiriridwa a chalcogenides achitsulo amatha kugwira ntchito ngati zoyambitsa kusintha kwa CO2 kukhala formic acid. Zotsatira zawo zafotokozedwa mu pepala lotchedwa "Kusintha kwa CO2 kukhala Formic Acid mwa Kusintha Ma Quantum States mu Metal Chalcogenide Clusters" lofalitsidwa mu Communications Chemistry of Nature Portfolio.
“Tasonyeza kuti, ndi kuphatikiza koyenera kwa ma ligand, cholepheretsa kusintha CO2 kukhala formic acid chingachepetsedwe kwambiri, zomwe zimafulumizitsa kwambiri kupanga formic acid,” adatero Hanna. “Chifukwa chake tinganene kuti ma catalyst omwe amati ndi awa angapangitse kuti kupanga formic acid kukhale kosavuta kapena kotheka kwambiri. Kugwiritsa ntchito magulu akuluakulu okhala ndi malo olumikizirana ndi ligand kapena poyika ma donor ligand ogwira ntchito bwino kukugwirizana ndi kusintha kwathu kwina pakutembenuza formic acid kungapezeke poyerekeza ndi zomwe zawonetsedwa mu ma simulation a makompyuta.”
Kafukufukuyu akuwonjezera pa ntchito ya Hanna yomwe idachitika kale yomwe ikuwonetsa kuti kusankha bwino kwa ligand kumatha kusintha gulu kukhala superdonor yomwe imapereka ma electron kapena acceptor yomwe imalandira ma electron.
“Tsopano tikuwonetsa kuti zotsatira zomwezo zili ndi kuthekera kwakukulu mu catalysis yochokera ku magulu achitsulo a chalcogenide,” akutero Hanna. “Kutha kupanga magulu ogwirizana okhazikika ndikuwongolera kuthekera kwawo kupereka kapena kulandira ma elekitironi kumatsegula gawo latsopano la catalysis, popeza machitidwe ambiri oyambitsa zinthu amadalira ma catalyst omwe amapereka kapena kulandira ma elekitironi.”
Mmodzi mwa asayansi oyamba kuyesa m'mundawu, Dr. Xavier Roy, Pulofesa Wachiwiri wa Chemistry ku Columbia University, adzapita ku VCU pa Epulo 7 ku Msonkhano wa Spring wa Dipatimenti ya Fiziki.
“Tidzagwira naye ntchito kuti tiwone momwe tingapangire ndikukhazikitsa chothandizira chofanana pogwiritsa ntchito labu yake yoyesera,” adatero Hanna. “Tagwira kale ntchito limodzi ndi gulu lake, komwe adapanga mtundu watsopano wa zinthu zamaginito. Nthawi ino iye adzakhala chothandizira.”
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