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碱性介质空气电极性能的改进 被引量:1
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作者 张胜涛 伍明军 《电源技术》 CAS CSCD 北大核心 2004年第8期501-503,共3页
考察了在空气电极的催化层中添加稀土氧化物La2O3对催化剂存在形态、空气电极性能的影响;并在碱性介质中以锌为负极组成碱性一次锌-空气电池,考察了电池的放电性能。实验结果表明,La2O3作为催化层的添加剂可以提高催化剂对氧气还原的催... 考察了在空气电极的催化层中添加稀土氧化物La2O3对催化剂存在形态、空气电极性能的影响;并在碱性介质中以锌为负极组成碱性一次锌-空气电池,考察了电池的放电性能。实验结果表明,La2O3作为催化层的添加剂可以提高催化剂对氧气还原的催化活性。在碱性介质中,La2O3是对空气电极具有较理想的助催化效果的添加剂。 展开更多
关键词 燃料电池 金属-空气电池 碱性介质 空气电极性能 放电性能 碱性介质 技术改进
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A high entropy stabilized perovskite oxide La_(0.2)Pr_(0.2)Sm_(0.2)Gd_(0.2)Sr_(0.2)Co_(0.8)Fe_(0.2)O_(3−δ)as a promising air electrode for reversible solid oxide cells 被引量:1
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作者 LI Ruoyu LI Xiaoyu +2 位作者 ZHANG Jinke GAO Yuan LING Yihan 《燃料化学学报(中英文)》 北大核心 2025年第2期282-290,共9页
Reversible solid oxide cell(RSOC)is a new energy conversion device with significant applications,especially for power grid peaking shaving.However,the reversible conversion process of power generation/energy storage p... Reversible solid oxide cell(RSOC)is a new energy conversion device with significant applications,especially for power grid peaking shaving.However,the reversible conversion process of power generation/energy storage poses challenges for the performance and stability of air electrodes.In this work,a novel high-entropy perovskite oxide La_(0.2)Pr_(0.2)Gd_(0.2)Sm_(0.2)Sr_(0.2)Co_(0.8)Fe_(0.2)O_(3−δ)(HE-LSCF)is proposed and investigated as an air electrode in RSOC.The electrochemical behavior of HE-LSCF was studied as an air electrode in both fuel cell and electrolysis modes.The polarization impedance(Rp)of the HE-LSCF electrode is only 0.25Ω·cm^(2) at 800℃ in an air atmosphere.Notably,at an electrolytic voltage of 2 V and a temperature of 800℃,the current density reaches up to 1.68 A/cm^(2).The HE-LSCF air electrode exhibited excellent reversibility and stability,and its electrochemical performance remains stable after 100 h of reversible operation.With these advantages,HE-LSCF is shown to be an excellent air electrode for RSOC. 展开更多
关键词 reversible solid oxide cell high entropy stabilized perovskite air electrode electrochemical performance
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