毕业论文移动版

摘要使用硼氢化钠产氢是目前产氢方式中较为便利的方法，而使用催化剂可以优化产氢的效果。本次实验研究以碳纤维为载体，通过改变电镀液的浓度与成分，溶剂的比例，浸渍的时间，电流的大小，电镀时间和温度来探索制备产氢催化剂的最优条件。通过对不同电镀条件下产氢速率分析可知，在第一次电镀时间为20分钟电流密度为0.9A/cm²，浸渍时间为150分钟，第二次电镀电流密度为0.6A/cm²、，电镀时间为40分钟，在温度为50℃的电镀液中进行电镀时，催化剂放入产氢液中效果最为理想。并对最佳碳纤维样品进行XRD、SEM表征，发现催化剂表面电镀层致密，且循环使用效果好。51804

该论文有图30幅，表3幅，参考文献15篇。

毕业论文关键词：硼氢化钠  产氢  碳纤维  电镀

The research and Pulse Plating preparation of cobalt-molybdenum catalyst of boron hydrogen

Abstract

Hydrogen production by sodium hydride is a convenient method for hydrogen production, and the effect of hydrogen production can be optimized by using the catalyst. The experimental study with carbon fiber as the carrier, by changing the concentration and composition of the plating solution, solvent ratio, dipping time, current density, plating time and temperature to explore the optimal conditions for the preparation of hydrogen production catalyst. Through the analysis of experimental data, in the first electroplating time for 20 minutes current density for 0.9A/cm², immersion time for 150 minutes, the second plating current density 0.6A/cm², plating time is 40 minutes, the bath temperature is 50 DEG C, the effect of hydrogen production is ideal. The best carbon fiber samples were characterized by XRD and SEM. It was found that the surface layer of the catalyst was compact, and the recycling effect was excellent.

Key words: Sodium-boron-hydride  Hydrogen-production  Carbon-fiber  Pulse- -plating

目  录

摘 要 I

Abstract II

目  录 III

图清单 IV

表清单 V

1 绪论 1

1.1 氢能源 1

1.2开发氢能源的意义 1

1.3产氢技术现状 1

1.4催化剂 2

1.5镀液 3

2实验 4

2.1实验仪器 4

2.2实验材料 4

2.3实验步骤 5

2.4表征 7

3钴钼硼碳纤维催化剂使用硼氢化钠水解产氢性能研究 12

3.1产氢流程 12

3.2催化剂与硼氢化钠水解液产氢实验步骤 13

3.3不同条件下催化剂性能 13

4结论 26

4.1研究成果 26

4.2工作建议 26

参考文献 27

致谢 28

图清单

图序号 图名称 页码

图2-1 电镀装置示意图 (责任编辑：qin)