Honda Motor Co., Ltd.

Utah State University

Temple University

Xia Li

Gugang Chen

Yi Rao

Avetik R Harutyunyan

The present disclosure is directed to methods of making Pb-free perovskites for short-wave IR (SWIR) devices and to various Pb-free perovskite materials disclosed herein. The perovskites disclosed herein have improved chemical stability and long-term stability, while the production methods disclosed herein have improved safety and lower cost.

Pb-free perovskite materials for short wave IR devices

A method of electrochemical reduction of COincludes the use of a catalyst of Cu/CuO particles including Cu/CuO interfaces. The catalyst may be included in an electrochemical cell for the conversion of COto value-added products. The electrochemical cell may include an anode, a cathode including the Cu/CuO particles including Cu/CuO interfaces, and an aqueous medium containing COor CO. The COor COis reduced by contacting the Cu/CuO particles with the aqueous medium while supplying electricity to the cell. The conversion of COby the electrochemical reduction thereof has higher Faradaic Efficiency due to the Cu/CuO interfaces in the Cu/CuO particles.

Cu/CuO interface nanostructures for electrochemical COreduction

All inorganic perovskites for short-wave IR (SWIR) devices having improved chemical stability and long-term stability. Improved methods of making all inorganic perovskites for short-wave IR (SWIR) devices are also disclosed herein.

All inorganic perovskite materials for short wave IR devices

A method of electrochemical reduction of carbon dioxide includes the use of multi-faceted CuO crystals as a catalyst to convert COto value-added products. An electrochemical cell for the electrochemical reduction of carbon dioxide includes a cathode including the multi-faceted CuO crystals. The multi-faceted CuO crystals have at least two different types of facets with different Miller indices. The multi-faceted CuO crystals include steps and kinks present at the transitions between the different types of facets. These steps and kinks improve the Faradaic Efficiency of the conversion of carbon dioxide. The multi-faceted CuO crystals may be nanosized. The multi-faceted CuO crystals may include 18-facet, 20-facet, and/or 50-facet CuO crystals.

Synergistic effects of multi-faceted CU2O nanocrystals for electrochemical CO2 reduction

A simple approach to produce mixed Cu/CuO nanocrystals having a specific morphology by controlling the reaction temperature during Cu/CuO nanocrystals synthesis. Other variables are kept constant, such as the amount of reactants, while the reaction temperatures is maintained at a predetermined temperature of 70&#xb0; C., 30&#xb0; C. or 0&#xb0; C., which are used to produce different and controlled morphologies for the Cu/CuO nanocrystals. The reaction mixture includes a copper ion contributor, a capping agent, a pH adjustor, and reducing agent. The reaction mixture is held at the predetermined temperature for three hours to produce the Cu/CuO nanocrystals. The synthesis method has advantages such as mass production, easy operation, and high reproducibility.

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North Logan, UT, United States of America

Xia Li