A monolithic, highly electrochemically efficient Re-based metal-organic framework (MOF) thin film has been deposited onto a conductive FTO electrode by liquid-phase epitaxy. The X-ray diffraction (XRD) analysis reveals the presence of a highly oriented film grown exclusively along the  direction. This epitaxially-grown SURMOF exhibits an extremely high faradaic efficiency of 93 ± 5% when operated as an electrocatalyst for the reduction of CO2 to CO. In addition, the obtained current densities of the high-quality monolithic coatings exceed 2 mA cm-2, a value at least one order of magnitude larger than that reported for previous electrocatalytically active MOF thin films.
Bibliographical noteFunding Information:
This work was supported by the National Natural Science of China (21120102036 and 21573033), the National Basic Research Program of China (973 program, 2014CB239402), and the Fundamental Research Funds for the Central Universities (DUT15LK08), the Basic Research Project of Key Laboratory of Liaoning (LZ2015015), the Swedish Energy Agency, and the K and A Wallenberg Foundation.
© 2016 The Royal Society of Chemistry.
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)