Details

Autor(en) / Beteiligte

• Lu, Lu
• Sun, Xiaofu
• Ma, Jun
• Yang, Dexin
• Wu, Haihong
• Zhang, Bingxing
• Zhang, Jianling
• Han, Buxing

Titel

Highly Efficient Electroreduction of CO2 to Methanol on Palladium–Copper Bimetallic Aerogels

Ist Teil von

• Angewandte Chemie International Edition, 2018-10, Vol.57 (43), p.14149-14153

Auflage

International ed. in English

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Electrochemical reduction of CO2 to CH3OH is of great interest. Aerogels have fine inorganic superstructure with high porosity and are known to be exceptional materials. Now a Pd−Cu bimetallic aerogel electrocatalyst has been developed for conversion of CO2 into CH3OH. The current density and Faradaic efficiency of CH3OH can be as high as 31.8 mA cm−2 and 80.0 % over the Pd83Cu17 aerogel at a very low overpotential (0.24 V). The superior performance of the electrocatalyst results from efficient adsorption and stabilization of the CO2 radical anion, high Pd0/PdII and CuI+Cu0/CuII ratios, and sufficient Pd/Cu grain boundaries of aerogel nanochains. A Pd−Cu bimetallic aerogel was an outstanding electrocatalyst for conversion of CO2 into CH3OH in an aqueous solution of ionic liquid. The current density could reach 31.8 mA cm−2 with a Faradaic efficiency of 80.0 % over the Pd83Cu17 aerogel electrode at a low overpotential of 0.24 V.