The reporter learned from the University of Science and Technology of China that the research team of Professor Yu Shuhong and the University of Toronto scientists first proposed to achieve high-efficiency polyalcohol by inhibiting the production of olefins by regulating the carbon-carbon coupling 'post-reaction' step in the process of carbon dioxide reduction. Conversion, making carbon dioxide 'transformation' into a multi-alcohol fuel becomes a reality, and provides a new design idea for the selective preparation of high energy density liquid alcohol fuel. This achievement was published in the latest issue of the famous academic journal "Natural Catalysis". "on.
Electrocatalytic reduction of carbon dioxide to prepare carbon-based chemical raw materials is an effective means to solve the problem of long-term storage of renewable electric energy. As a renewable transportation fuel, ethanol and propanol have attracted much attention due to their high energy density. Reducing the preparation of polyhydric alcohol is full of challenges.
In the study of electrocatalytic reduction of carbon dioxide, scientists at China University of Science and Technology found that a special nanostructure is beneficial to the choice of reaction path in the process of carbon dioxide reduction, and promotes the electrochemical synthesis of polyhydric alcohol by inhibiting the production of ethylene. A new type of copper nanocatalyst was successfully synthesized by a nuclear method with a controlled size of cuprous sulfide nanocrystals.
On this basis, researchers have solved the carbon dioxide mass transfer limitation by using the mobile electrolytic cell equipment, which has promoted the conversion efficiency of the multi-alcohol Faraday of this catalyst to 32%, and the conversion rate per square centimeter exceeds 120 mA, which is currently reported internationally. Maximum current density.
