Issue 34, 2019

Highly efficient electroconversion of carbon dioxide into hydrocarbons by cathodized copper–organic frameworks

Abstract

Highly selective conversion of carbon dioxide (CO2) into valuable hydrocarbons is promising yet challenging in developing effective electrocatalysts. Herein, CuII/adeninato/carboxylato metal–biomolecule frameworks (CuII/ade-MOFs) are employed for efficient CO2 electro-conversion towards hydrocarbon generation. The cathodized CuII/ade-MOF nanosheets demonstrate excellent catalytic performance for CO2 conversion into valuable hydrocarbons with a total hydrocarbon faradaic efficiency (FE) of over 73%. Ethylene (C2H4) is produced with a maximum FE of 45% and a current density of 8.5 mA cm−2 at −1.4 V vs. RHE, while methane (CH4) is produced with a FE of 50% and current density of ∼15 mA cm−2 at −1.6 V vs. RHE. These investigations reveal that the reconstruction of cathodized CuII/ade-MOFs and the formed Cu nanoparticles functionalized by nitrogen-containing ligands contribute to the excellent CO2 conversion performance. Furthermore, this work would provide valuable insights and opportunities for the rational design of Cu-based MOF catalysts for highly efficient conversion of CO2 towards hydrocarbon generation.

Graphical abstract: Highly efficient electroconversion of carbon dioxide into hydrocarbons by cathodized copper–organic frameworks

Supplementary files

Article information

Article type
Edge Article
Submitted
29 May 2019
Accepted
02 Jul 2019
First published
02 Jul 2019
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2019,10, 7975-7981

Highly efficient electroconversion of carbon dioxide into hydrocarbons by cathodized copper–organic frameworks

F. Yang, A. Chen, P. L. Deng, Y. Zhou, Z. Shahid, H. Liu and B. Y. Xia, Chem. Sci., 2019, 10, 7975 DOI: 10.1039/C9SC02605C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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