摘要
A series of Co-Ni-Fe hydrotalcite like compounds have been synthesized by combining a mixed solution of Co(NO3)2·6H2O,Ni(NO3)2·6(H2O) and Fe(NO3)3·9H2O with a second solution containing NaOH and Na2CO3.The compounds have been characterized by XRD,IR and TG-DTA.The results showed that the hydrotalcites with M2+/M3+ molar ratios of 2 to 4 have the nice crystal form and high purity.After calcined,hydrotalcites are converted into composite oxides.It is found that the composite oxides has activity and selectivity for catalyzing the dehydrogenation and dehydration of ethanol.
A series of Co-Ni-Fe hydrotalcite like compounds have been synthesized by combining a mixed solution of Co（ NO3 ） 2· 6H2O,Ni（NO3 ）2 · 6（H2O） and Fe（ NO3 ）3 · 9H2O with a second solution containing NaOH and Na2CO3. The compounds have been characterized by XRD, IR and TG-DTA. The results showed that the hydrotalcites with M^2＋/M^3＋ molar ratios of 2 to 4 have the nice crystal form and high purity. After calcined, hydrotalcites are converted into composite oxides. It is found that the composite oxides has activity and selectivity for catalyzing the dehydrogenation and dehydration of ethanol.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2009年第3期353-356,共4页
Chemical Research and Application
关键词
钴镍铁水滑石
合成及表征
复合氧化物
催化活性
Co-Ni-Fe hydrotalcite like compounds
synthesize and characterization
composite oxides
catalytic activities
