AI Chat Paper
Note: Please note that the following content is generated by AMiner AI. SciOpen does not take any responsibility related to this content.
{{lang === 'zh_CN' ? '文章概述' : 'Summary'}}
{{lang === 'en_US' ? '中' : 'Eng'}}
Chat more with AI
Article Link
Collect
Submit Manuscript
Show Outline
Outline
Show full outline
Hide outline
Outline
Show full outline
Hide outline
Research Article

In situ reconstruction induced oxygen-deficient multiphase Cu based species hybridized with Ni single atoms as tandem platform for CO2 electroreduction

Juzhe Liu1Yuheng Wang1Pengpeng Mo1Feng Yang1Kaiqi Jiang1Zhixiang Cheng1Yuxuan Liu1Zhiyi Sun2Zheng Liu3,4( )Yimei Zhang1( )Wenxing Chen2( )
The Key Laboratory of Resources and Environmental System Optimization, Ministry of Education, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
SEPA Key Laboratory of Eco-Industry, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Show Author Information

Graphical Abstract

To construct a robust tandem factory for multicarbons by CO2 electroreduction, we developed a single atom involved multivalent oxide-derived Cu composite material and found it inclined to reconstruct into oxygen-deficient Cu based species hybridized with atomically dispersed NiN4 units on the C matrix. The in situ formed tandem catalytic system exhibited high selectivity for ethanol. This work provides a promising construction strategy for tandem catalytic systems and deepens the understanding of catalytic properties of materials related to electrochemical self-reconstruction.

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.

Electronic Supplementary Material

Download File(s)
12274_2023_6375_MOESM1_ESM.pdf (2.7 MB)
Nano Research
Pages 3888-3894
Cite this article:
Liu J, Wang Y, Mo P, et al. In situ reconstruction induced oxygen-deficient multiphase Cu based species hybridized with Ni single atoms as tandem platform for CO2 electroreduction. Nano Research, 2024, 17(5): 3888-3894. https://doi.org/10.1007/s12274-023-6375-6
Topics:

334

Views

1

Crossref

0

Web of Science

1

Scopus

0

CSCD

Altmetrics

Received: 28 October 2023
Revised: 14 November 2023
Accepted: 27 November 2023
Published: 29 December 2023
© Tsinghua University Press 2023
Return