{"title":"用于可逆式固体氧化物电池的具有高氧还原和进化活性的复合氧电极","authors":"","doi":"10.1016/j.ijhydene.2024.10.117","DOIUrl":null,"url":null,"abstract":"<div><div>Reversible solid oxide cells (RSOCs) are highly efficient energy conversion devices for electricity generation and hydrogen production. However, their commercialization is significantly hindered by the slow oxygen reduction/evolution reaction (ORR/OER) activity of oxygen electrodes and the insufficient durability of the RSOCs. Herein, an active and durable PrBa<sub>0.8</sub>Ca<sub>0.2</sub>Co<sub>1.5</sub>Fe<sub>0.5</sub>O<sub>5+<em>δ</em></sub>–Ce<sub>0.8</sub>Gd<sub>0.2</sub>O<sub>2-δ</sub> (PBCCF–GDC) composite oxygen electrode with mediate thermal expansion is developed, achieving a low polarization resistance of 0.058 Ω cm<sup>2</sup> at 750 °C. The PBCCF–GDC oxygen electrode has been applied and evaluated in both the button cell (Φ = 20 mm) and large-area cell (10 × 10 cm<sup>2</sup>), respectively. When utilized as an oxygen electrode in button cell, it achieves a peak power density of 0.88 W cm<sup>−2</sup> in the fuel cell (FC) mode, and a current density of −1.51 A cm<sup>−2</sup> at 1.3 V with 70% H<sub>2</sub>O in the electrolysis cell (EC) mode at 750 °C, and favorable stability in the both FC and EC modes. When utilized in large-area cell, it exhibits a power of 29.5 W and good stability over 330 h, and an impressive electrolysis current of −27A at 1.3 V with 70% H<sub>2</sub>O at 750 °C. The results indicate that PBCCF–GDC is a promising oxygen electrode material for RSOCs.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A composite oxygen electrode with high oxygen reduction and evolution activities for reversible solid oxide cells\",\"authors\":\"\",\"doi\":\"10.1016/j.ijhydene.2024.10.117\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Reversible solid oxide cells (RSOCs) are highly efficient energy conversion devices for electricity generation and hydrogen production. However, their commercialization is significantly hindered by the slow oxygen reduction/evolution reaction (ORR/OER) activity of oxygen electrodes and the insufficient durability of the RSOCs. Herein, an active and durable PrBa<sub>0.8</sub>Ca<sub>0.2</sub>Co<sub>1.5</sub>Fe<sub>0.5</sub>O<sub>5+<em>δ</em></sub>–Ce<sub>0.8</sub>Gd<sub>0.2</sub>O<sub>2-δ</sub> (PBCCF–GDC) composite oxygen electrode with mediate thermal expansion is developed, achieving a low polarization resistance of 0.058 Ω cm<sup>2</sup> at 750 °C. The PBCCF–GDC oxygen electrode has been applied and evaluated in both the button cell (Φ = 20 mm) and large-area cell (10 × 10 cm<sup>2</sup>), respectively. When utilized as an oxygen electrode in button cell, it achieves a peak power density of 0.88 W cm<sup>−2</sup> in the fuel cell (FC) mode, and a current density of −1.51 A cm<sup>−2</sup> at 1.3 V with 70% H<sub>2</sub>O in the electrolysis cell (EC) mode at 750 °C, and favorable stability in the both FC and EC modes. When utilized in large-area cell, it exhibits a power of 29.5 W and good stability over 330 h, and an impressive electrolysis current of −27A at 1.3 V with 70% H<sub>2</sub>O at 750 °C. The results indicate that PBCCF–GDC is a promising oxygen electrode material for RSOCs.</div></div>\",\"PeriodicalId\":337,\"journal\":{\"name\":\"International Journal of Hydrogen Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-10-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Hydrogen Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S036031992404312X\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Hydrogen Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S036031992404312X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
可逆固体氧化物电池(RSOCs)是一种高效的能量转换装置,可用于发电和制氢。然而,由于氧电极的氧还原/进化反应(ORR/OER)活性较慢以及 RSOCs 的耐久性不足,其商业化受到严重阻碍。在此,我们开发了一种具有活性和耐久性的 PrBa0.8Ca0.2Co1.5Fe0.5O5+δ-Ce0.8Gd0.2O2-δ (PBCCF-GDC)复合氧电极,它具有调解热膨胀的功能,在 750 °C 时的极化电阻低至 0.058 Ω cm2。PBCCF-GDC 氧电极分别在纽扣电池(Φ = 20 毫米)和大面积电池(10 × 10 平方厘米)中进行了应用和评估。在纽扣电池中用作氧电极时,它在燃料电池(FC)模式下的峰值功率密度达到了 0.88 W cm-2,在电解池(EC)模式下,在 750 °C、1.3 V 和 70% H2O 下的电流密度达到了 -1.51 A cm-2,并且在 FC 和 EC 模式下都具有良好的稳定性。在大面积电池中使用时,其功率为 29.5 W,在 330 小时内具有良好的稳定性;在 750 ℃、电压为 1.3 V、含 70% H2O 的条件下,其电解电流为-27A。结果表明,PBCCF-GDC 是一种很有前途的 RSOC 氧电极材料。
A composite oxygen electrode with high oxygen reduction and evolution activities for reversible solid oxide cells
Reversible solid oxide cells (RSOCs) are highly efficient energy conversion devices for electricity generation and hydrogen production. However, their commercialization is significantly hindered by the slow oxygen reduction/evolution reaction (ORR/OER) activity of oxygen electrodes and the insufficient durability of the RSOCs. Herein, an active and durable PrBa0.8Ca0.2Co1.5Fe0.5O5+δ–Ce0.8Gd0.2O2-δ (PBCCF–GDC) composite oxygen electrode with mediate thermal expansion is developed, achieving a low polarization resistance of 0.058 Ω cm2 at 750 °C. The PBCCF–GDC oxygen electrode has been applied and evaluated in both the button cell (Φ = 20 mm) and large-area cell (10 × 10 cm2), respectively. When utilized as an oxygen electrode in button cell, it achieves a peak power density of 0.88 W cm−2 in the fuel cell (FC) mode, and a current density of −1.51 A cm−2 at 1.3 V with 70% H2O in the electrolysis cell (EC) mode at 750 °C, and favorable stability in the both FC and EC modes. When utilized in large-area cell, it exhibits a power of 29.5 W and good stability over 330 h, and an impressive electrolysis current of −27A at 1.3 V with 70% H2O at 750 °C. The results indicate that PBCCF–GDC is a promising oxygen electrode material for RSOCs.
期刊介绍:
The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc.
The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.