La0.8Sr0.2Co0.8Ni0.2O3-δ impregnated oxygen electrode for H2O/CO2 co-electrolysis in solid oxide electrolysis cells
Publication type: Journal Article
Publication date: 2018-04-01
scimago Q1
wos Q1
SJR: 1.784
CiteScore: 14.9
Impact factor: 7.9
ISSN: 03787753, 18732755
Physical and Theoretical Chemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Abstract
High-temperature H2O/CO2 co-electrolysis through reversible solid oxide electrolysis cell (SOEC) provides potentially a feasible and eco-friendly way to convert electrical energy into chemicals stored in syngas. In this work, La0.8Sr0.2Co0.8Ni0.2O3-δ (LSCN) impregnated Gd0.1Ce0.9O1.95 (GDC)-(La0.8Sr0.2)0.95MnO3-δ (LSM) composite oxygen electrode is studied as high-performance electrode for H2O/CO2 co-electrolysis. The LSCN impregnated cell exhibits competitive performance with the peak power density of 1057 mW cm−2 at 800 °C in solid oxide fuel cell (SOFC) mode; in co-electrolysis mode, the current density can reach 1.60 A cm−2 at 1.5 V at 800 °C with H2O/CO2 ratio of 2/1. With LSCN nanoparticles dispersed on the surface of GDC-LSM to maximize the reaction active sites, the LSCN impregnated cell shows significant enhanced electrochemical performance at both SOEC and SOFC modes. The influence of feed gas composition (H2O-H2-CO2) and operating voltages on the performance of co-electrolysis are discussed in detail. The cell shows a very stable performance without obvious degradation for more than 100 h. Post-test characterization is analyzed in detail by multiple measurements.
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Zheng H. et al. La0.8Sr0.2Co0.8Ni0.2O3-δ impregnated oxygen electrode for H2O/CO2 co-electrolysis in solid oxide electrolysis cells // Journal of Power Sources. 2018. Vol. 383. pp. 93-101.
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Zheng H., Tian Y., Zhang L., Chi B., Pu J., Li J. La0.8Sr0.2Co0.8Ni0.2O3-δ impregnated oxygen electrode for H2O/CO2 co-electrolysis in solid oxide electrolysis cells // Journal of Power Sources. 2018. Vol. 383. pp. 93-101.
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TY - JOUR
DO - 10.1016/j.jpowsour.2018.02.041
UR - https://doi.org/10.1016/j.jpowsour.2018.02.041
TI - La0.8Sr0.2Co0.8Ni0.2O3-δ impregnated oxygen electrode for H2O/CO2 co-electrolysis in solid oxide electrolysis cells
T2 - Journal of Power Sources
AU - Zheng, Haoyu
AU - Tian, Yunfeng
AU - Zhang, Lingling
AU - Chi, Bo
AU - Pu, Jian
AU - Li, Jian
PY - 2018
DA - 2018/04/01
PB - Elsevier
SP - 93-101
VL - 383
SN - 0378-7753
SN - 1873-2755
ER -
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@article{2018_Zheng,
author = {Haoyu Zheng and Yunfeng Tian and Lingling Zhang and Bo Chi and Jian Pu and Jian Li},
title = {La0.8Sr0.2Co0.8Ni0.2O3-δ impregnated oxygen electrode for H2O/CO2 co-electrolysis in solid oxide electrolysis cells},
journal = {Journal of Power Sources},
year = {2018},
volume = {383},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.jpowsour.2018.02.041},
pages = {93--101},
doi = {10.1016/j.jpowsour.2018.02.041}
}