摘要
本文采用微波等离子体气相合成了Ni/SiO_2超细颗粒催化剂,粒度大小为8.8～18.8nm。研究了合成条件对粒子形态及尺寸分布、组成的影响,并对其CO甲烷化活性进行了初步考察,表明等离子体的反应性和高温度梯度是制备超细颗粒的有效手段。
Ni/SiO_2 ultrafine particles with sizes from 8.8 to 18.8 nm were synthesized from vapor phase by MW plasma. Relations between particle shape, size distribution, composition and reaction conditions were studied as well as the activity to CO methanation.The results revealed that the high reactivity and temperature gradient of MW plasma are in great favour of ultrafine particle′s preparation.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1992年第4期92-98,共7页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金
