The IR spectra of hydrogel, alcogel and aerogel of BaFe12O19 were studied, and the ones of the powders calcined at different temperatures for different time were also studied. 对钡铁氧体的水凝胶、醇凝胶以及气凝胶的红外光谱进行了初步的观察,同时对不同焙烧温度及时间所得粉末的红外吸收光谱进行了考察。
The Ni/ MgO-AN catalyst, prepared by loading of Ni onto nano-magnesia ( MgO-AN) obtained from thermal processing of a Mg ( OH)_2 alcogel, was used for CO_2 reforming of methane under different pressures ( 0.1~ 2.0 MPa). 以在流动N2中热处理的Mg(OH)2醇凝胶制得的纳米氧化镁(MgOAN)为载体,制备了Ni/MgOAN催化剂。
The present work reports the preliminary discovery that thermal processing of the ZrO ( OH) 2 alcogel with flowing nitrogen under atmospheric pressure can also lead to highly stable nanocomposite Ni/ ZrO 2 catalyst. 在常压流动N2中加热处理ZrO(OH)2醇凝胶制备ZrO2前体,同样可以得到高效稳定的纳米复合型Ni/ZrO2AN催化剂。
In this paper, the catalytic performance of Cu/ ZrO_2 catalysts in the steam reforming of ethanol was investigated. ZrO_2 supports were prepared by precipitation and alcogel methods. 考察了ZrO2载体的制备方法以及Cu/ZrO2的制备参数对催化剂性能的影响。
The products using Zr ( OH) 4 hydrogel as raw material prepared by pressure-hydrothermal method were slightly inferior than alcogel. 采用压力-热液法制备粉体,以水凝胶为原料的效果较醇凝胶稍差。