https://phys.org/news/2018-06-catalyst-carbon-dioxide-fuels.html > When it comes to designing catalysts for CO2 conversion, many researches on the C-C coupling step have been done; while little attention has been paid to post-C-C coupling reaction. > By deliberately incorporating sulfur atoms into the catalyst core and copper vacancies in its shell, researchers realized Cu2S-Cu-V core-shell nanoparticles that enhance CO2 reduction to ethanol and propanol. Structural characterization, X-ray studies, and electrochemical measurements were utilized to illustrate how good this new catalyst is in improving catalytic performance.