Catalysis Communications ( IF 3.4 ) Pub Date : 2020-10-24 , DOI: 10.1016/j.catcom.2020.106209 Lili Zhao , Hualiang An , Xinqiang Zhao , Yanji Wang
In order to improve the catalytic performance of NiO/Nb2O5-TiO2, several kinds of the second metal oxide component MOx (M = Pd, Co, Ir or Rh) were separately introduced and their effects on the reduction property and catalytic performance were evaluated. The results showed that the reduction temperature of NiO decreased and NiO-Co3O4/Nb2O5-TiO2 exhibited the best catalytic performance. The reason for the enhancement of NiO reducibility may stem from the interaction of M with Ni and the hydrogen spillover as confirmed by various characterization techniques including XRD, H2-TPR, H2-TPD and XPS.
中文翻译:
第二金属成分对Ni -MO x / Nb 2 O 5 -TiO 2还原由正戊醛直接合成2-丙基庚醇的催化性能的影响
为了提高NiO / Nb 2 O 5 -TiO 2的催化性能,分别引入了几种第二金属氧化物组分MO x(M = Pd,Co,Ir或Rh),它们对还原性能和评估催化性能。结果表明,NiO的还原温度降低,NiO-Co 3 O 4 / Nb 2 O 5 -TiO 2表现出最佳的催化性能。NiO还原能力增强的原因可能是由于M与Ni的相互作用以及氢的溢出,这已通过各种表征技术(包括XRD,H 2 -TPR,H2 -TPD和XPS。