摘要
采用化学共沉淀法制备了Cr/Cu复合粉体催化剂,并用化学气象沉淀法(CVD)原位合成CNTs/Cu复合粉末。利用SEM,TEM和Raman光谱分别对其微观形貌和结构进行表征。结果表明:采用化学气相沉淀法,使用10 wt%Cr/Cu的催化剂,在混合气体(Ar/H2/C2H4)流量2450/300 m L/min下,于1073 K温度生长30 min,可以得到优质、结晶良好的CNTs/Cu复合粉末。
Based on the in-situ polymerization and chemical vapor deposition method（CVD）, the synthesis method of CNTs/Cu composite powder was developed by Cr/Cu catalyst via CVD. The crystal phase and micro morphologies of the as-synthesized materials were characterized using scanning electron microscopy（SEM） and Raman spectrum as well as transmission electron microscopy（TEM）, respectively. The results show that the superior quality and well-crystallized CNTs/Cu composite powder can be produced by CVD using 10wt% Cr/Cu catalyst at growth temperature as low as 1073 K, for growth time of 30 min and under mixture gas of H2/C2H4 with a flow rate of 2450/300 m L/min.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2015年第8期1832-1837,共6页
Rare Metal Materials and Engineering
基金
National Natural Science Foundation of China(51201107)
Key Basic Research Project of Shanghai Committee of Science and Technology in China(10JC1411800)
