Year: 2025
Type: article
Abstract: The electrochemical CO2 reduction reaction (CO2RR) to multi-carbon (C2+) products relies predominantly on Cu-based catalysts, but achieving high selectivity and efficiency remains challenging. The formation of C2+ products generally involves *CO generation and subsequent dimerization, making the modulation of *CO adsorption behavior critical. Herein, we developed N doped carbon nanosheets supported monatomic Ni and ultrafine oxide-derived Cu in amorphous state as a tandem catalyst. The Ni-N4 sites enable a high *CO coverage, while the amorphization of the oxide-derived Cu nanoparticles induces a shift in the *CO adsorption configuration from atop to bridging, thereby facilitating the C–C coupling. These integrated effects endow the catalyst with exceptional performance, achieving a record Faradaic efficiency of ~ 70% for C2+ products and ~ 54% for C2H4. This work provides a strategy for designing tandem catalyst for CO2RR multiscale component interaction.
Source: Nano Research
Authors: Jinmeng Li, Yuxuan Liu, Xinyi Zhu, Yufan Tan, Yuheng Wang, Yaxu Liu, Hanxia Chen, Xiaoxue Xu, Peiyuan Du, Ze Gao, Qiangwei Li, Juzhe Liu, Jiajing Pei, Xi Liu, Lidong Wang
Institution: Tsinghua University
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,290
OpenAlex ID: W4416134699