摘要
该文主要以色谱技术研究了负载型Ｎｉ（Ａｃ）＿２的热分解性能。结果表明，Ｎｉ（Ａｃ）＿２的分解过程取决于载体的性质。强酸性载体ＨＺＳＭ－５分子筛起催化分解作用，导致Ｎｉ（Ａｃ）＿２分解时在低温区出现ＣＨ＿４和ＣＯ＿２峰；ＭｇＯ与Ｎｉ（Ａｃ）＿２的配位作用致使Ｎｉ（Ａｃ）＿２有两个最佳分解温度，ＣＯ＿２，ＣＯ和Ｈ＿２相应地都出现两个峰；与ＭｇＯ和ＨＺＳＭ－５相比，ＳｉＯ＿２和γ－Ａ１＿２Ｏ＿３对Ｎｉ（ＡＣ）＿２热分解的影响不很明显。但ＳＯ＿２，γ－Ａ１＿２Ｏ＿３和ＨＺＳＭ－５有较强的甲烷化效应。
Thermal decomposition of supported nickel acetate has been studied by gas chromatography.The reaction paths of decompo- sition of supported nickel acetate depend on the nature of the sup- ports. For Ni(Ac)_2/HZSM-5,the zeolite behaves as an acidic catalyst o give CO_2 and CH_4 at lower temperatures. In the case of Ni(Ac)2/ MgO,the first peaks of CO, CO_2 and H_2 arise from the coordination of surface MgO with Ni(Ac)_2, SiO2,γ-A1_2O_3 and HZSM-5 are more conducive to methanation of CO as compared with MgO.
出处
《南京理工大学学报》
EI
CAS
CSCD
1994年第5期17-19,96,共4页
Journal of Nanjing University of Science and Technology
关键词
乙酸镍
载体
热分解
thermal decomposition,support,interaction
