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纳米晶型CoFe2O4微波制备及对氧还原催化性能
Synthesis of nanocrystalline CoFe2O4 by microwave treatment and its electrocatalytic performance of oxygen reduction
【摘要】 使用固相加热法和微波烧结法制备了尖晶石型催化材料CoFe2O4,微波加热合成的CoFe2O4为纳米晶型,结晶良好,产物纯度较高,粒径80~100 nm,以CoFe2O4为催化剂制备的空气电极在碱性条件下,-0.2 V(vs.Hg/HgO)电位,室温且空气气氛中ORR电流密度达153.2 mA/cm2,表现出优越的催化性能。
【Abstract】 Spinel-type catalysts material CoFe2O4was prepared by solid-phase sintering and microwave heating methods. CoFe2O4synthesized by the microwave heating was nano-crystalline with good crystallinity, high purity and particle size of 80-100 nm. The ORR current density of air electrode with CoFe2O4as catalyst, under alkaline condition, at-0.2 V(vs. Hg/HgO) and at atmosphere is 153.2 mA/cm2, which proves the superior catalytic properties.
【关键词】 燃料电池;
空气电极;
氧还原;
尖晶石;
微波烧结;
【Key words】 fuel cell(FC); air electrode; oxygen reduction(OR); spinel; microwave heating;
【Key words】 fuel cell(FC); air electrode; oxygen reduction(OR); spinel; microwave heating;
- 【文献出处】 电源技术 ,Chinese Journal of Power Sources , 编辑部邮箱 ,2014年01期
- 【分类号】TM911.4;TQ426
- 【被引频次】2
- 【下载频次】146