Nghiên cứu sử dụng vật liệu xúc tác perovskit prmno3 cấu trúc nano để oxi hóa co

• Tác giả: Ngọc Nhiệm Đào, Thị Lịm Dương, Minh Đại Lưu
• Ngôn ngữ: vie
• Ký hiệu phân loại: 541.1 Physical chemistry
• Thông tin xuất bản: Hóa học, 2013
• Mô tả vật lý: 318-320
• Bộ sưu tập: Metadata
• ID: 637103

Tóm tắt

Nanostructured perovskite-type PrMnO3 catalysts were prepared by the combustion method using polyvinyl alcohol (PVA) and corresponding metal nitrates. The synthesized powder was characterized by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), specific surface area analysis by Brunauer-Emmet-Teller (BET) and Infrared Spectroscopy (IR) methods. The catalytic oxidation of CO over nanostucrtured perovskite-type PrMnO3 was determined using Landcom II instrument. In this study, the nanostrutured PrMnO3 peroskites ( 100nm) with a specific surface area of 20.5 m2/g were obtained. The CO conversion efficiency reaches as high as 99.86 percent at temperatures 220°C.