Abstract
Carbon dioxide (CO2) is a known greenhouse gas, and is the most important contributor to global warming. Therefore, one of the main challenges is to either eliminate or reuse it through the synthesis of value-added products, such as carboxylated derivatives. One of the most promising approaches for activating, capturing, and valorizing CO2 is the use of electrochemical techniques. In the current manuscript, we described an electrocarboxylation route for synthesizing 4-cyanobenzoic acid by valorizing CO2 through the synergistic use of electrochemical techniques (“green technology”) and ionic liquids (ILs) (“green solvents”)—two of the major entries in the general green chemistry tool kit. Moreover, the use of silver cathodes and ILs enabled the electrochemical potential applied to be reduced by more than 0.4 V. The “green” synthesis of those derivatives would provide a suitable environmentally friendly process for the design of plasticizers based on phthalate derivatives.
Highlights
Fossil fuels in the form of coal, oil, and natural gas account for 80% of the world’s energy use and have caused increases in the Greenhouse Gas (GHG) concentrations of the atmosphere
The same general trend was observed in both cases, a first two-electron irreversible wave followed by a second reversible one-electron wave. This second electron transfer corresponded to the electrochemical reduction of benzonitrile, which is in agreement with previous studies reported in the literature under similar experimental conditions [36]
A closer look at the Cyclic voltammograms (CVs) revealed that the reduction potential value of 1 was reduced by at least 0.46 V
Summary
Fossil fuels in the form of coal, oil, and natural gas account for 80% of the world’s energy use and have caused increases in the Greenhouse Gas (GHG) concentrations of the atmosphere. These have led to global warming, climate change, and ozone layer depletion, with destructive impacts on human society and the economy. These global CO2 emissions will continue to increase and are projected to reach 36 billion tons in 2020, and double that by 2050 if appropriate climate change mitigation measures are not put in place [1,2,3] In this sense, different research strategies are currently being developed for the activating, capturing, and valorizing of CO2. CO2 uses are generally classified into different categories, such as direct use and/or conversion to chemicals and energy [4,5,6,7,8,9,10,11]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
