For intermediate temperature solid oxide fuel cell (IT-SOFC) using hydrocarbon gases as fuels, the carbon deposition resistance of the anode is the most critical factor affecting its long-term stability. In this study, Ba(Ce_0.9Y_0.1)_0.8Ni_0.2O_3-δ (BCYN) decorated Gd_0.1Ce_0.9O_1.95 (GDC) composite is prepared by solution impregnation as anode for SOFC. And metal Ni nanoparticles are in-situ exsolved from BCYN as catalyst for the fuel gas cracking. At 750 °C, the polarization resistance of the optimized cell with Ni-BCYN/GDC composite anode are as low as 0.085 and 0.12 Ω cm² in H₂ and CH₄, respectively. The related electrolyte-supported full cell's peak power density up to 211 mW cm⁻² can be achieved in CH₄ at 750 °C. In the long-term polarization test (200 mA cm⁻²), single cell with Ni-BCYN/GDC composite anode maintains stable output for 100 h without obvious attenuation and carbon deposition.

对于使用碳氢化合物气体作为燃料的中温固体氧化物燃料电池（IT-SOFC），阳极的碳沉积阻力是影响其长期稳定性的最关键因素。本研究以溶液浸渍法制备了以SOFC为阳极的Ba（Ce _0.9 Y _0.1）_0.8 Ni _0.2 O3 _-δ（BCYN）修饰的Gd _0.1 Ce _0.9 O _1.95（GDC）复合材料。然后从BCYN中原位溶解了金属Ni纳米粒子，将其作为燃料气体裂解的催化剂。在750℃下，用Ni-BCYN / GDC复合负极优化电池的极化电阻是低至0.085和0.12Ω厘米² H中₂和CH ₄分别。可以在750°C的CH ₄中实现高达211 mW cm ^-2的相关电解质支持的满电池的峰值功率密度。在长期极化测试（200 mA cm ^-2）中，带有Ni-BCYN / GDC复合阳极的单电池可在100小时内保持稳定的输出，而不会出现明显的衰减和碳沉积。