Kusanduka kwamakemikalu kulachitika koonse koonse koonse koonse—kulibonya antangalala kuti wayeeya, asi ino mbanji buti besu bachita oobo notutalisya moota, notubila iji, naakuti notubikka manyowa abwaanda bwesu?
Syaazibwene mukupanga misamu Richard Kong walikuyeeya aatala akusanduka kwamakemikalu. Mumulimo wakwe mbuli "injiniya wamajwi uuchibwene", mbuli mbwaamba lwakwe mwini, tabikkili buyo maano kuzintu zicitika muli nguwe, pele alimwi akubusya zintu zipya.
Mbuli Klarman Fellow mu Chemistry a Chemical Biology ku College of Arts and Sciences, Kong ubelekela kupanga zintu zipa kuti kube kusanduka kwamakemikalu kusikila kuzintu ziyandika, akupanga zintu zikwabilidwe alimwi zijisi mpindu, kubikkilizya azyeezyo zikonzya kugwasya muntu. bulondozi. Bwatatu.
"Mweelwe mupati wazyintu zicitika kakunyina kugwasyigwa," Kong wakaamba, kaamba zyakuzwa kwa carbon dioxide eelyo myootokala noitenta mafuta aakaindi. "Pesi zintu zikatazya kumvwisisisya zyamakemikalu tazichitiki biyo pe. Aawa mpaakonzya kubelesegwa ma chemical catalysis."
Kong ababelesinyina bakapanga chintu chikonzya kusololela nzyobakali kuyanda, mpawo chakachitika. Mbuli chitondeezyo, muya uutegwa carbon dioxide ulakonzya kusanduka kuba asidi, methanol, naa formaldehyde kwiinda mukusala chintu chili kabotu akusola bukkale bwakusanduka.
Nzila ya Kong yeendelana anzila ya Lancaster "yeendelezyegwa akujana zintu", wakaamba Kyle Lancaster, mufundisi wa chemistry a chemical biology (A&S) alimwi muyiisi wa Kong. "Richard wakaba amuzeezo wakubelesya tini kuti ayungizye busongo bwakwe, oobo butakwe nobwakali mubbuku lyangu," Lancaster wakaamba. "Nchintu chipa kuti kube kusanduka kwa carbon dioxide kuba chintu chiyandisi, mpawo carbon dioxide ilapegwa makani mabi loko."
Kong ababelesinyina bakwe lino-lino bakajana nzila eeyo, mubukkale bumwi, iikonzya kusandula muya uutegwa carbon dioxide kuba asidi yafoomu.
"Nikuba kuti lino tatuli afwaafwi akuchita zintu munzila yamazubaano, nzila yesu ilakonzya kubamba kabotu," Kong wakaamba. "Aboobo tulakonzya kutalika kumvwisisisya loko kaambo zimwi zibelesyo zibeleka chakufwambaana kwiinda zimwi, nkamboonzi zimwi zibelesyo nzibotu. Tulakonzya kuchincha zyeelelo zyazibelesyo eezyo akusola kumvwisisisya kuti nchinzi chipa kuti zintu eezyi zibeleke chakufwambaana, nkaambo mbuli mbozibeleka chakufwambaana, mbozibeleka kabotu - ulakonzya kupanga ma molecule chakufwambaana."
Mbuli Klarman Fellow, Kong awalo uli mukubeleka kusandula ma nitrates, ma poison aadumide aanjila mumaanzi, kuzwa muchilengwaleza kuba chintu chitakwe ntenda, wakaamba.
Kong wakasola kubelesya nsimbi zyaanyika zilimbuli aluminiyamu atini mbuli zintu zigwasya. Izibulo taziduli pe, tazikwe toxic alimwi zilivwulide munyika, aboobo kuzibelesya takukonzyi kuleta mapenzi aakukwabilila, wakaamba.
"Tuli mukuyeeya mbutukonzya kupanga zintu zipa kuti zintu zyobile zibelekela antoomwe," Kong wakaamba. "Kwiinda mukubelesya nsimbi zyobile muchikozyano, ino nkusanduka kuli buti amibuzyo mibotu njotukonzya kujana kuzwa kunzila zya nsimbi zyobile?" "kusanduka kwamakemikalu?"
Kweelana aKong, ziluli mbusena bwamakemikalu oomo zintu eezyi mozikkala.
Muminyaka iili makumi musanu atutatu yakainda, chiyanza chakali kubelesya busena bomwe bwachibulo kuti kube kusanduka kwamakemikalu, asi muminyaka iilikumi yainda, basyaazibwene mumulimo ooyu bakatalika kulanga-langa kujatana aakati kamakemikalu obile aajatikizyidwe naakuti aajatikizyidwe. , Kong wakati, "Chilakupa lwaanguluko lunji."
Aaya ma bimetallic catalysts apa basikupanga misamu nguzu zyakuswaanganya ma catalysts aabutale kweendelanya anguzu zyawo akubula nguzu kwazyo, Kong wakaamba. Mbuli chitondeezyo, ntalisyo yabutale iijatikizyidwe kabotu kuchintu chili ansi pesi ichikonzya kutyola zijatikizyo kabotu ilakonzya kubeleka amwi ntalisyo yabutale iitajatikizyi zijatikizyo zitali kabotu pesi ijatana kabotu kuchintu chili ansi. Kubako kwa nsimbi yabili akwalo kulajatikizya bube bwa nsimbi yakusaanguna.
"Ulakonzya kutalika kujana nchotwaamba kuti nkuswaangana aakati kamasena obile aabutale," Kong wakaamba. "Zintu zimwi zilibedelede alimwi zibotu loko zili mukutalika kuzwa mumulimo wa bimetallic catalysis."
Kong wakati kuchili kudooneka kunji aatala akuti insimbi zilaswaangana biyeni munzila zyama molecule. Wakakkomana abubotu bwa chemistry mbubonya mbuli mbwaakakkomana azintu zyakazwa. Kong wakaletwa ku laboratory ya Lancaster nkaambo kaluzibo lwabo lwa X-ray spectroscopy.
"Nkuyanzana," Lancaster wakaamba. "X-ray spectroscopy yakagwasya Richard kumvwisisisya chakali munsi aachivwumbyo akuti nchinzi chakapa kuti tini ibe aanguzu zyakuchita zintu. Tulagwasyigwa aluzibo lwakwe lupati lwa chemistry ya nkamu mpati, eeyo yakajula nzila mpya."
Zyoonse zizwa ku chemistry yakusaanguna akuvwuntauzya, nzila yakakonzeka a Open Klarman Fellowship, Kong wakaamba.
"Kanjikanji ndilakonzya kuchita zyintu mu laboratory naakuti kukkala aakkompyuta ndikozyanisya molecule," wakaamba. "Tuli mukusola kujana mufanikisyo uuzulide wamilimo yamakemikalu mbuli mbotukonzya."