Mesoporous Nickel–Aluminosilicate Nanocomposite: A Solid Acid Catalyst for Ether Synthesis
作者:N. Neelakandeswari、R. Karvembu、N. Dharmaraj
DOI:10.1166/jnn.2013.7419
日期:2013.4.1
Mesoporous nickel aluminosilicate, a solid acid catalyst prepared by sol–gel technique was utilized as a heterogeneous catalyst for the synthesis of symmetrical ethers by dehydro-condensation of alcohols. The prepared catalysts were characterized by Fourier-transform infra red spectroscopy (FT-IR), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), N2 adsorption–desorption analysis, temperature programmed desorption of ammonia (TPD) and X-ray photoelectron spectroscopic techniques. The presence of the catalyst assisted the etherification reaction in 30 minutes. Ethers formed in these reactions were quantified by gas chromatography (GC) and the identities of few of them were confirmed by nuclear magnetic resonance spectral data (NMR).
介孔镍铝硅酸盐是一种通过溶胶-凝胶技术制备的固体酸催化剂,被用作非均相催化剂,通过醇的脱水缩合反应合成对称醚。制备的催化剂通过傅里叶变换红外光谱(FT-IR)、粉末X射线衍射(XRD)、扫描电子显微镜(SEM)、能量色散X射线分析(EDAX)、N2吸附-脱附分析、氨程序升温脱附(TPD)和X射线光电子能谱技术进行了表征。催化剂的存在促进了醚化反应在30分钟内进行。这些反应中形成的醚通过气相色谱(GC)进行定量,其中一些醚的鉴定通过核磁共振谱数据(NMR)得到了确认。