造孔剂法制备多孔铁碳合金的实验研究
发布时间：2018-08-13 11:02
【摘要】：基于水解沉淀法,通过添加造孔剂制备出了多孔铁碳合金.以Fe Cl3·6H2O为主要原料,淀粉作造孔剂,向制得的胶体中加入不同配比的淀粉,经过滤、烘干、煅烧,再在650、700、750和800℃的温度条件下用氢气还原得到产物.用SEM、XRD和X射线能谱手段对样品的微观结构和形貌进行了表征,研究了淀粉添加量、氢气还原温度对多孔铁碳合金的影响,分析了产物粒径大小与还原温度之间的关系.结果表明,淀粉的最佳添加量为22%,氢气的最佳还原温度为750℃,产物的粒径随着还原温度的升高而增大,产物微粒的平均粒径为25~55 nm,且还原产物中碳的质量分数为3%~4.5%.
[Abstract]:Based on the hydrolysis precipitation method, porous iron carbon alloy was prepared by adding pore-forming agent. Using Fe Cl3 6H2O as the main raw material and starch as the pore-making agent, different proportions of starch were added to the colloid, then filtered, dried, calcined, and then reduced by hydrogen at 650700750 鈩，
本文编号：2180778
[Abstract]:Based on the hydrolysis precipitation method, porous iron carbon alloy was prepared by adding pore-forming agent. Using Fe Cl3 6H2O as the main raw material and starch as the pore-making agent, different proportions of starch were added to the colloid, then filtered, dried, calcined, and then reduced by hydrogen at 650700750 鈩，
本文编号：2180778
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