| 摘要: |
| 点火和燃烧是高密度燃料在新型发动机上应用的关键技术之一。使用十八酸作为保护剂制备了纳米钯金属颗粒，采用红外、核磁、差热分析和透射电镜等手段对其进行了表征。发现颗粒的平均粒径随着合成液中十八酸与钯前驱化合物摩尔比的增加而减小，纳米颗粒可长期稳定分散在燃料中而不沉降。评价了纳米颗粒催化高密度燃料HD-01的点火燃烧性能，发现添加质量分数为0.01‰，十八酸/Pd原料配比为4:1的颗粒可将HD-01的点火燃烧温度降低约230°C。 |
| 关键词: 应用化学 高密度燃料 纳米金属颗粒 催化燃烧 油溶性催化剂 |
| DOI： |
| 分类号: |
| 基金项目:装备预研项目(625010304)。 |
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| Hydrocarbon Fuel-Soluble Palladium Nanoparticles for Catalytic Combustion of High Density Fuel |
|
WANG Fang,EXiu Tian-feng,GUO Cheng,ZOU Ji-jun,ZHANG Xiang-wen,WANG Li
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(Key Laboratory for Advanced Fuel and Chemical Propellant of Ministry of Education/
School of Chemical Engineering and Technology，Tianjin University，Tianjin 300072，China)
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| Abstract: |
| Ignition and combustion are very important for the application of high density fuel in new aerospace engines. Stearic acid monolayer protected palladium nanoparticles were synthesized and characterized by FTIR，NMR，DTA and TEM. It is found that the particle size decreased with the increase of stearic acid/Pd molar ratio in the synthetic mixture. And the particles were well dispersed in fuel very stably. The catalytic performance in high density fuel (HD-01) ignition and combustion was evaluated. The results show that the addition of 0.01‰ Pd MPCs(the stearic acid/Pd ratios are 4:1) in HD-01 could reduce the ignition temperature by about 230°C. |
| Key words: Applied chemistry High density fuel Metal nanoparticles Catalytic combustion Fuel soluble catalyst |
