@article{Liu2024, 
author = {Juzhe Liu and Yuheng Wang and Pengpeng Mo and Feng Yang and Kaiqi Jiang and Zhixiang Cheng and Yuxuan Liu and Zhiyi Sun and Zheng Liu and Yimei Zhang and Wenxing Chen},
title = {In situ reconstruction induced oxygen-deficient multiphase Cu based species hybridized with Ni single atoms as tandem platform for CO2 electroreduction},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {5},
pages = {3888-3894},
keywords = {reconstruction, amorphous, CO2 reduction reaction, single atom, tandem catalysis},
url = {https://www.sciopen.com/article/10.1007/s12274-023-6375-6},
doi = {10.1007/s12274-023-6375-6},
abstract = {Tandem catalysis, capable of decoupling individual steps, provides a feasible way to build a high-efficiency CO2 electro-conversion system for multicarbons (C2+). The construction of electrocatalytic materials is one of focusing issues. Herein, we fabricated a single atom involved multivalent oxide-derived Cu composite material and found it inclined to reconstruct into oxygen-deficient multiphase Cu based species hybridized with monatomic Ni on N doped C matrix. In this prototype, rapid CO generation and C−C coupling are successively achieved on NiN4 sites and surface amorphized Cu species with defects, resembling a micro-production line. In this way, the in situ formed tandem catalyst exhibited a high Faradaic efficiency (FE) of ~ 78% for C2+ products along with satisfactory durability over 50 h. Particularly, the reconstruction-induced amorphous layer with abundant asymmetric sites should be favorable to improve the ethanol selectivity (FE: 63%), which is about 10 times higher than that of the non-tandem Cu-based contrast material. This work offers a new approach for manipulating tandem catalyst systems towards enhancing C2+ products.}
}