Year: 2023
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide The electrochemical carbon dioxide reduction reaction (CO 2 RR) is a promising route to close the carbon cycle by reducing CO 2 into valuable fuels and chemicals. Electrocatalysts with high selectivity toward a single product are economically desirable yet challenging to achieve. Herein, we demonstrated a highly (111)-oriented Cu foil electrocatalyst with dense twin boundaries (TB) (tw-Cu) that showed a high Faradaic efficiency of 86.1 ± 5.3% toward CH 4 at −1.2 ± 0.02 V vs the reversible hydrogen electrode. Theoretical studies suggested that tw-Cu can significantly lower the reduction barrier for the rate-determining hydrogenation of CO compared to planar Cu(111) under working conditions, which suppressed the competing C–C coupling, leading to the experimentally observed high CH 4 selectivity.
DOI: 10.1021/jacs.3c00847
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,000
Funders: National Science Foundation, U.S. Department of Energy, Princeton University, UC Irvine Materials Research Institute, Ministry of Science and Technology, Taiwan, National Science and Technology Council, Office of Science, University of California, Irvine, Office of Naval Research, Division of Materials Research, Basic Energy Sciences, Advanced Scientific Computing Research, California NanoSystems Institute
Awards: G1135980590, G1286236842, G1286251239, G1362517514, G1799333409, G1863003419, G2325896758, UCI MRSEC: Materials Discovery Through Atomic Level Structural Design and Charge Control, G2593733834, G3033678867, G30714459, G3083819904, G3136028036, G419881185, G4228951661, G42916606, G4501827968, G498139845, G5261056217, G650090426, G6652958823, Intelligent Semiconductor Nano-System Technology Research Center( V ), G8955063216, G969889393, G97908232
OpenAlex ID: W4366237772