摘要
采用程序升温还原（ＴＰＲ）技术和原位Ｘ射线衍射（ＸＲＤ）方法对含ＣｕＯ催化剂的还原行为和晶相变化进行了详细研究。研究发现，ＣｕＯ在还原过程中经历了ＣＵ２＋→Ｃｕ２Ｏ→ＣＵ０两个阶段，并且在ＣｕＯ中加ＺｎＯ、Ａｌ２Ｏ３后，提高了ＣｕＯ的分散度，降低其还原阻力和表观反应活化能。
Temperature-programmed reduction(TPR) and XRD techniques have been used toexamine the reduction behavior and crystalphase changes of the catalysts containingCuO. There exist two stages for CuO in reducing process: Cu2+ → Cu2O → Cu0.When ZnO and/or Al2O3 is added, the dispersion degree of CuO is increased, and reductionimpedance and apparent reaction activation energy are decreased.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
1994年第6期20-24,共5页
Natural Gas Chemical Industry
关键词
氧化物
程序升温还原
动力学
oxide, temperature- programmed reduction, kinetics, activation energy
