通过热分解法制备Ni0.75Fe0.25催化层,研究了不同螯合剂(柠檬酸,乙醇酸和D-葡萄糖酸)对催化层的结构及抗积碳性能的影响.结果表明:热分解法制得的晶相为FeNi3相,其结构及尺寸均与螯合剂有关.氧-程序升温氧化和拉曼光谱分析表明含D-葡萄糖酸的催化层具有最佳的抗积碳能力.采用D-葡萄糖酸改性催化层制作的单电池在650℃的甲烷燃料中最大功率达289 mW·cm-2.另外,该电池在甲烷燃料中以600 mA·cm-2的电流密度下运行9h后电压仍保持初始电压的61％,而未改性的单电池电压相同运行条件下仅余53％.
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