水热还原Pr_(6)O_(11)以制备纯相Pr(OH)_(3)纳米颗粒的综合实验设计与教学实践  

Comprehensive Experimental Design and Teaching Practice of Hydrothermal Reduction of Pr_6O_(11) For the Preparation of Pure Phase Pr(OH)_(3) Nanoparticles

作　　者：郑红娟 钱姝羽 刘杰 刘云飞[1] 朱云峰[1] 崔升[1] Zheng Hongjuan;Qian Shuyu;Liu Jie;Liu Yunfei;Zhu Yunfeng;Cui Sheng(College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京211816

出　　处：《广东化工》2024年第22期161-164,共4页Guangdong Chemical Industry

基　　金：江苏省教育厅课题项目“江苏高校品牌专业建设工程二期项目(二批)省特色50号-南京工业大学-复合材料与工程”(苏教高函[2021]号);江苏省教育厅课题项目“江苏高校品牌专业建设工程三期项目省品牌222号-南京工业大学-材料科学与工程”(苏教高函[2024]16号);材料类新工科双创人才“课程-创新-实践-支撑”四链一体沉浸式教育范式研究(2023JSJG468);2023年度南京工业大学大型科学仪器开放共享研究课题(DYGX20230005)。

摘　　要：稀土化合物因其独特的光学、磁性、电学和催化性能引起了人们的持续关注,其中稀土氢氧化物是合成众多功能材料的重要中间体,因此纯相稀土氢氧化物的制备显得尤为重要。氧化镨Pr_(6)O_(11)被认为是Pr_(2)O_(3) (III)和Pr O_(2) (IV)两种价态氧化物的组合,本实验项目以混合价态的Pr_(6)O_(11)为研究对象,通过变换水热反应介质实现一步制备纯相Pr(OH)_(3)纳米颗粒,并与单一价态的Pr_(2)O_(3)原料进行横向对比实验,分析镨离子在水热介质中的价态变化。通过本实验教学,锻炼了学生的实验操作技能、团队协作、创新能力,而且其分析能力、科研素养也能得到有效提升与发展。Rare earth compounds have attracted sustained attention due to their unique optical,magnetic,electrical and catalytic properties,among which rare earth hydroxides are important intermediates for the synthesis of numerous functional materials,so the preparation of pure phase rare earth hydroxides is particularly important.Praseodymium oxide Pr_6O_(11) is considered to be a combination of Pr_(2)O_(3) (III) and Pr O_(2) (IV) valence oxides.In this experimental project,the mixed-valence Pr_6O_(11) was used as the research object,and the one-step preparation of pure-phase Pr(OH)_(3) nanoparticles was realized by changing the hydrothermal reaction medium,and the side-by-side comparative experiments were conducted with the single-valence Pr_(2)O_(3) raw material to analyze the change of the valence state of praseodymium ion in the hydrothermal medium.In the experimental course,students not only practiced the valence change of praseodymium ions in hydrothermal medium,but also learned how to use the valence of praseodymium ions as a raw material.In the experimental course,the students not only practiced the experimental operation skills,teamwork and innovation ability,but also improved their analytical ability and scientific research literacy.

关 键 词：氢氧化镨 水热法 实验教学 教学改革 

分 类 号：G64[文化科学—高等教育学]