中文摘要：

设计了一个简单易行的综合化学实验,该实验以水合氧化铁催化分解H2O2反应构建研究系统,通过测定不同温度下反应的速率常数获得反应的活化能、活化焓和活化熵数据,使学生初步了解异相催化的基本知识.实验者可以自主改变环境因素进行实验,也可选用α-Fe2O3、α-FeOOH或γ-FeOOH等铁氧化物开展研究,并比较铁氧化物的晶体结构和晶化状态对催化分解H2O2反应的影响,具有探究性的实验内容设置有利于培养学生的创新能力、综合实验能力和科研能力.

英文摘要：

A feasible comprehensive experiment was designed in this article to investigate thecatalytic decomposition of hydrogen peroxide in a heterogeneous system using ferrihydrite as acatalyst. The activation energy, activation enthalpy and activation entropy of the decompositionreaction of hydrogen peroxide could be obtained through determining the rate constants at differ-ent temperatures, which makes students acquire some knowledge on the catalysis in heterogene-ous system. In the experimental process, not only the experimental conditions can be selected bystudents, but also other iron oxides such as a-Fe2O3, a-FeOOH and -FeOOH are also used ascatalysts to investigate the effect of crystal structure and crystallinity of iron oxides on their cata-lytic efficiency. The exploratory experiment design is favorable for students to develop their inno-vative ability, integrated experimental skill and scientific research ability.