Engineering Cu(I)/Cu(0) interfaces for efficient ethanol production from CO2 electroreduction

Cai，Rongming1,2; Sun，Mingzi3; Yang，Fei4; Ju，Min1; Chen，Yanpeng1; Gu，M. Danny4; Huang，Bolong3,5; Yang，Shihe1,2

2024-01-11

10.1016/j.chempr.2023.08.027

Chem   影响因子和分区

2451-9308

2451-9294

By leveraging a Cu(OH)F precursor, we construct a disk-like Cu(I)/Cu(0) interface model (P-Cu/CuOF) composed of F-stabilized Cu(I) shell and Cu(0) core by one-step pulsed potential conversion. The interfacial region is shown to facilitate ethanol formation, guaranteeing a high FE(C) of up to 80.2%. Tuning the Cu(I)/Cu(0) ratio enhances the ethanol yield by 18.5-fold over pure P-Cu, with the corresponding partial current density (j) reaching up to 128 mA/cm. This is enabled by a 3.6-fold boost in selectivity for the ethanol product (35.4%) and an overall 7.8-fold boost in activity (j up to 288 mA/cm). The interactions between P-Cu and CuOF upshift the d-band center of Cu sites on the interface region, which is critical to asymmetrical C-C coupling to form OCCOH∗, concurrent with a lowered energy barrier for ethanol formation. On the other hand, the ethylene-forming symmetrical C-C coupling occurs primarily on P-Cu away from the Cu(I)/Cu(0) interface.

asymmetric C-C coupling copper electronic structure gradient electrocatalytic CO2 reduction ethanol interface SDG7: Affordable and clean energy SDG9: Industry, innovation, and infrastructure

SCI

英语

其他

2-s2.0-85173167435

Scopus

1.Guangdong Provincial Key Lab of Nano-Micro Material Research,School of Chemical Biology and Biotechnology,Shenzhen Graduate School,Peking University,Shenzhen,518055,China
2.Institute of Biomedical Engineering,Shenzhen Bay Laboratory,Shenzhen,518107,China
3.Department of Applied Biology and Chemical Technology,The Hong Kong Polytechnic University,Kowloon,Hung Hom, Hong Kong SAR,Hong Kong
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.Research Centre for Carbon-Strategic Catalysis (RC-CSC),The Hong Kong Polytechnic University,Kowloon,Hung Hom, Hong Kong SAR,Hong Kong

Cai，Rongming,Sun，Mingzi,Yang，Fei,et al. Engineering Cu(I)/Cu(0) interfaces for efficient ethanol production from CO2 electroreduction[J]. Chem,2024,10(1):211-233.

Cai，Rongming.,Sun，Mingzi.,Yang，Fei.,Ju，Min.,Chen，Yanpeng.,...&Yang，Shihe.(2024).Engineering Cu(I)/Cu(0) interfaces for efficient ethanol production from CO2 electroreduction.Chem,10(1),211-233.

Cai，Rongming,et al."Engineering Cu(I)/Cu(0) interfaces for efficient ethanol production from CO2 electroreduction".Chem 10.1(2024):211-233.