I-Ethyl alcohol isuka ku-carbon dioxide

Ososayensi boMnyango Wezamandla we-Oak Ridge National Laboratory e-US benze inqubo yobuchwepheshe yokuguqula i-carbon dioxide ibe i-ethyl alcohol, okungukuthi i-ethanol, kusetshenziswa i-carbon ne-copper nanoparticles. Abacwaningi basebenzise i-carbon-nitrogen-copper catalyst lapho i-voltage kagesi yasetshenziswa ukuze kubangele ukusabela kwamakhemikhali ukubuyisela emuva inqubo yokuvutha. Ukuvela kotshwala kule nqubo kwamangaza, ngoba kwakungenakwenzeka ukusuka ku-carbon dioxide kuye ku-ethanol kusetshenziswa i-catalyst eyodwa.

Ngosizo lwe-catalyst esekelwe ku-nanotechnology, isisombululo se-carbon dioxide emanzini siguqulwa sibe yi-ethanol ngesivuno se-63%. Ngokuvamile, lolu hlobo lokusabela kwe-electrochemical lukhiqiza ingxube yemikhiqizo ehlukene ngamanani amancane. Njengoba i-catalysis incane kakhulu futhi akukho ukusabela okuseceleni, i-ethanol imsulwa ngokuphelele. Ingasetshenziselwa ukunika amandla amajeneretha. Futhi inzuzo enkulu yale ndlela yukuthi yonke le nqubo yenzeka ekamelweni lokushisa.

Ukuqamba okusha kwe-catalyst kusekelwe esakhiweni sayo se-nanoscale, esihlanganisa ama-nanoparticles ethusi ashumekwe endaweni yekhabhoni ebabazekayo. Ukuhlaziywa kokuqala kososayensi kubonisa ukuthi ukuthungwa kwendawo eqinile ye-catalyst kunikeza ukusabela okwanele okuseceleni ukuze kube lula ukuguqulwa kwe-carbon dioxide ibe i-ethanol. Le ndlela ingaqeda ukusetshenziswa kwezinsimbi ezibizayo nezingavamile njengeplatinum, enciphisa ukusebenza kahle kwama-catalyst amaningi. Ososayensi bahlela ucwaningo olwengeziwe kule ndawo ukuze bathuthukise futhi bakhulise ukukhiqiza futhi baqonde izakhiwo nokuziphatha kwe-catalyst.