Optimizing CO Production in Electrocatalytic CO2 Reduction via Electron Accumulation at Ni Sites in Ni3ZnC0.7/Ni on N-Doped Carbon Nanofibers | Sciact - CRIS-system of Boreskov Institute of Catalysis

Optimizing CO Production in Electrocatalytic CO2 Reduction via Electron Accumulation at Ni Sites in Ni3ZnC0.7/Ni on N-Doped Carbon Nanofibers Full article

Journal

Green Energy & Environment
ISSN: 2468-0257

Output data

Year: 2026, Volume: 11, Number: 1, Pages: 258-268 Pages count : 11 DOI: 10.1016/j.gee.2025.04.010

Tags

CO2 electroreduction; CO production; Ni3ZnC0.7/Ni; Heterostructure; Membrane electrode assembly

Authors

Bai Ge ^1,2 , Wang Min ³ , Peng Luwei ⁴ , Li Lulu ¹ , Yu Yadan ¹ , Li Wenyi ¹ , Yang Nianjun ⁵ , Kolokolove Daniil I. ⁶ , Qiao Jinli ^1,2

Affiliations

1	State Key Laboratory of Advanced Fiber Materials, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
2	Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
3	School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
4	Department of Applied Physics, Hong Kong Polytechnic University, 11 YucaiRoad, Kowloon, Hongkong, China
5	Department of Chemistry & IMO-IMOMEC, Hasselt University, 3590, Diepenbeek, Belgium
6	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk, 630090, Russia

Funding (3)

1	Ministry of Science and Technology of the People's Republic of China	2022YFE0138900
2	Shanghai Municipality	19JC1410500
3	National Natural Science Foundation of China	YCBK2024004

The electrocatalytic reduction of carbon dioxide (CO2RR) to valuable products presents a promising solution for addressing global warming and enhancing renewable energy storage. Herein, we construct a novel Ni3ZnC0.7/Ni heterostructure electrocatalyst, using an electrospinning strategy to prepare metal particles uniformly loaded on nitrogen-doped carbon nanofibers (CNFs). The incorporation of zinc (Zn) into nickel (Ni) catalysts optimizes the adsorption of CO2 intermediates, balancing the strong binding affinity of Ni with the comparatively weaker affinity of Zn, which mitigates over-activation. The electron transfer within the Ni3ZnC0.7/Ni@CNFs system facilitates rapid electron transfer to CO2, resulting in great performance with a faradaic efficiency for CO (FECO) of nearly 90% at −0.86 V versus the reversible hydrogen electrode (RHE) and a current density of 17.51 mA cm−2 at −1.16 V versus RHE in an H-cell. Furthermore, the catalyst exhibits remarkable stability, maintaining its crystal structure and morphology after 50 h of electrolysis. Moreover, the Ni3ZnC0.7/Ni@CNFs is used in the membrane electrode assembly reactor (MEA), which can achieve a FECO of 91.7% at a cell voltage of −3 V and a current density of 200 mA cm−2 at −3.9 V, demonstrating its potential for practical applications in CO2 reduction.

Bai G. , Wang M. , Peng L. , Li L. , Yu Y. , Li W. , Yang N. , Kolokolove D.I. , Qiao J.
Optimizing CO Production in Electrocatalytic CO2 Reduction via Electron Accumulation at Ni Sites in Ni3ZnC0.7/Ni on N-Doped Carbon Nanofibers
Green Energy & Environment. 2026. V.11. N1. P.258-268. DOI: 10.1016/j.gee.2025.04.010 Scopus OpenAlex AN

Submitted:	Feb 23, 2025
Accepted:	Apr 25, 2025
Published online:	Apr 29, 2025
Published print:	Jan 1, 2026

≡ Scopus:	2-s2.0-105026678869
≡ OpenAlex:	W4409954162
≡ Chemical Abstracts:	2026:95184

≡ Scopus	3	Сбор данных от 15.02.2026
≡ OpenAlex	3	Сбор данных от 15.02.2026