La0.45Ce0.55O2-δ(简称LDC45)作为Ni-LDC45阳极和LSGM电解质之间的阻挡层可以阻止二者之间的固相界面反应.采用丝网印刷方法制备了LDC45阻挡层薄膜,并从粘结剂的选择、膜层的丝网印刷和烧结工艺的优化3个方面对LDC45阻挡层的制各工艺进行了详细研究.通过对粘结剂的筛选,发现采用乙基纤维素能获得较为致密的阻挡层;通过丝网印刷工艺的研究,发现刮板和53μm丝网分别是较为理想的印刷工具和丝网规格;通过对烧结工艺的优化,发现1400℃是烧结阻挡层的最佳温度.引入LDC45阻挡层可以有效阻止阳极与电解质之间的界面反应,并对燃料的化学吸附的分离有催化作用,将电池的最大输出功率密度提高了72%.
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