NdBaCo1.8Nb0.1Y0.1O5+δ作为质子陶瓷电解电池高效耐用的空气电极

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-09-27 DOI:10.1016/j.mseb.2025.118841

Wei Chen, Jianxiong Wang, Yuezhen Mao, Chunwen Sun

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引用次数: 0

摘要

质子陶瓷电解电池因其高能量转换效率而受到广泛关注。空气电极对氧还原反应（ORR）和析氧反应（OER）具有较高的催化活性，是解决反应动力学缓慢的关键。本文设计了一种新型的钙钛矿空气电极材料ndba1 - xco1.8 nb0.1 y0.1 +δ (NBCNY)。作为空气电极，NdBa1-xCo1.8Nb0.1-xY0.1-xO5+δ与BaZr0.1Ce0.7Y0.1Yb0.1O3-δ (BZCYYb)电解质具有良好的化学相容性。由于氧空位浓度高，NBCNY在700℃时的面积比电阻（ASR）极低，仅为0.077 Ω cm2。在700℃和1.5 V条件下，采用NBCNY空气电极的PCEC电池在H2O和CO2/H2O共电解模式下的电流密度分别为2.51 a cm−2和2.64 a cm−2。此外，具有NBCNY空气电极的pcec具有超过100小时的耐久性。

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NdBaCo1.8Nb0.1Y0.1O5+δ as an efficient and durable air electrode for protonic ceramic electrolysis cells

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NdBaCo1.8Nb0.1Y0.1O5+δ as an efficient and durable air electrode for protonic ceramic electrolysis cells

Proton ceramic electrolysis cells (PCECs) have received a lot of attention due to their high energy conversion efficiency. Air electrode with high catalytic activities toward oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are critical due to the sluggish reaction kinetics. In this work, a novel perovskite air electrode material of NdBaCo_1.8Nb_0.1Y_0.1O_5+δ (NBCNY) was designed by co-doping Nb and Y. As an air electrode, the NdBa_1-xCo_1.8Nb_0.1-xY_0.1-xO_5+δ exhibits superior chemical compatibility with BaZr_0.1Ce_0.7Y_0.1Yb_0.1O_3-δ (BZCYYb) electrolyte. The high oxygen vacancy concentration of NBCNY leads to an extremely low areal specific resistance (ASR) of 0.077 Ω cm² at 700 °C. At 700 °C and 1.5 V, the PCEC cell with NBCNY air electrode achieves a current density of 2.51 A cm⁻² and 2.64 A cm⁻² in H₂O and CO₂/H₂O co-electrolysis modes, respectively. Furthermore, PCECs with NBCNY air electrode shows exceptional durability for more than 100 h.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.