氧化锰八面体分子筛纳米棒的合成及其催化甲醛低温氧化性能  

Synthesis and Catalytic Performance of Manganese Oxide Octahedral Molecular Sieve Nanorods for Formaldehyde Oxidation at Low Temperature

作　　者：唐幸福[1] 黄秀敏[1] 邵建军[1] 刘俊龙[1] 李永刚[1] 徐奕德[1] 申文杰[1] 

机构地区：[1]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023

出　　处：《催化学报》2006年第2期97-99,共3页

摘　　要：Uniform manganese oxide octahedral molecular sieve（OMS-2） nanorods were synthesized by adding a small quantity of K2S2O8 to the solution containing MnSO4·H2O and KMnO4,and used for complete oxidation of formaldehyde.According to the results of N2 adsorption and X-ray diffraction,the material is a manganese oxide octahedral molecular sieve with the cryptomelane type structure.TEM observation shows that the diameters of the nanorods range from 15 to 25 nm, and the lengths are 300～400 nm.Complete conversion of HCHO to CO2 and H2O can be achieved at 353 K over OMS-2,and the same conversion is obtained at 373 K on the MnOx powder under the same conditions,which demonstrates that the catalytic activity is closely related to the morphology of the catalysts.Uniform manganese oxide octahedral molecular sieve （OMS-2） nanorods were synthesized by adding a small quantity of K2S2O8 to the solution containing MnSO4·H2O and KMnO4, and used for complete oxidation of formaldehyde. According to the results of N2 adsorption and X-ray diffraction, the material is a manganese oxide octahedral molecular sieve with the eryptomelane type structure. TEM observation shows that the diameters of the nanorods range from 15 to 25 nm, and the lengths are 300-400 nm. Complete conversion of HCHO to CO2 and H2O can be achieved at 353 K over OMS-2, and the same conversion is obtained at 373 K on the MnOx powder under the same conditions, which demonstrates that the catalytic activity is closely related to the morphology of the catalysts.

关 键 词：氧化锰 八面体分子筛 甲醛 氧化 

分 类 号：O643.32[理学—物理化学]