CAJ | 학술논문

采用柠檬酸络合法制备了LaBO3（ B＝Fe， Co， Ni）钙钛矿催化剂，通过X-射线粉末衍射（ XRD）、傅立叶-红外光谱（ FT-IR）、透射电镜（ TEM）、X-射线光电子能谱（ XPS）等对催化剂进行了表征，在室温下测定了其对H2 O2的催化分解能力．结果表明：催化分解能力依次为LaNiO3＞LaCoO3＞LaFeO3，说明Ni较Co和Fe能更好地分解H2 O2．通过改变LaFeO3催化剂的形貌也能提高催化剂性能，如多孔状LaFeO3较负载在SBA-15上的LaFeO3具有更好的催化分解活性．
채용저몽산락합법제비료LaBO3（ B＝Fe， Co， Ni）개태광최화제，통과X-사선분말연사（ XRD）、부립협-홍외광보（ FT-IR）、투사전경（ TEM）、X-사선광전자능보（ XPS）등대최화제진행료표정，재실온하측정료기대H2 O2적최화분해능력．결과표명：최화분해능력의차위LaNiO3＞LaCoO3＞LaFeO3，설명Ni교Co화Fe능경호지분해H2 O2．통과개변LaFeO3최화제적형모야능제고최화제성능，여다공상LaFeO3교부재재SBA-15상적LaFeO3구유경호적최화분해활성．
A series of LaBO3 ( B=Fe, Co, Ni) perovskite catalysts were synthesized by citric acid sol-gel method and characterized by XRD, FT-IR, TEM and XPS.The catalytic performances were tested using H2 O2 decomposition as model reaction.The results indicated that the catalytic activity was in the order of LaNiO3 >LaCoO3 >LaFeO3 , suggesting that Ni is better than Co and Fe for H2 O2 decomposition.In addition, the catalytic performances can be improved by altering the surface morphology, for example, LaFeO3 fabricated in porous structure showed better catalytic activity than that of LaFeO3 loaded on SBA-15 (LaFeO3/SBA-15).