摘 要

本文采用液相共沉淀法在温和的条件下制备钼铁复合金属氧化物催化剂，通过XRD和SEM等表征手段探究不同的煅烧温度（350℃、450℃、550℃）、PH值（PH=3，4，5，6）及模板剂（聚乙二醇、CTAB、泊洛沙姆）的选择对形成的催化剂结构的影响。关键词：钼铁复合金属氧化物 煅烧温度 PH值 模板剂

Preparation of molybdenum - iron composite oxide by Cash method and its characterization

ABSTRACT

In this paper, the molybdenum composite oxide catalyst was prepared by liquid phase coprecipitation method. The effects of different calcination temperature（350℃、450℃、550℃）, pH value and template (polyethylene glycol, CTAB, poloxamer) were investigated by XRD and SEM. The effect of the selection on the formed catalyst structure.

Keywords: Molybdenum composite oxide calcination temperature PH template

目 录

摘 要...........................................................................................................................i

ABSTRACT...................................................................................................................ii

第一章 文献综述...................................................................................................1

1.1 钼酸铁的介绍...............................................................................................................1

1.2 钼酸铁的应用..................................................................................................1

1.3 钼酸铁的制备方法..........................................................................................3

1.3.1 液相共沉淀法..........................................................................3

1.3.2 固相反应法..............................................................................4

1.3.3 水热法......................................................................................4

1.3.4 微乳液法..................................................................................5

1.3.5 溶胶-凝胶法.............................................................................5

第二章 实验部分...................................................................................................8

2.1 主要仪器和试剂..........................................................................................................8

2.2 实验步骤........................................................................................................................8

2.3 催化剂的表征...............................................................................................................9

2.3.1 X-射线衍射分析.......................................................................9

2.3.2扫描电子显微镜分析...............................................................9

2.3.3 N₂吸附脱附..............................................................................9

第三章 结果与讨论............................................................................................10

3.1 煅烧温度...................................................................................10

3.2 PH值..........................................................................................12

3.2模板剂........................................................................................15

第四章 结 论.....................................................................................................18

参考文献...................................................................................................19

致 谢.......................................................................................................21

一、文献综述

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