The properties of three types of CoMo/USY catalysts with different synthesized methods have been studied. The sequential and co-impregnation methods followed by activation using calcination and reduction process have been conducted. The properties of the catalysts were examined using Fourier-transform-infrared (FTIR) spectroscopy, X-ray diffraction (XRD) with refinement, and surface area analyzer (SAA). The FTIR spectrum study revealed the enhanced intensity of its Bronsted acid site, and the XRD diffractogram pattern verified the composition of pure metals, oxides, and alloys in the catalyst. The SAA demonstrated the mesoporous features of the catalyst. Scanning electron microscopy showed an irregular particle morphology. Additional analysis using the transmission electron microscopy indicated that the metal has successfully impregnated without damaging the USY structure.

中文翻译：

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合成和活化方法对CoMo/超稳定Y-沸石催化剂性能的影响

研究了三种不同合成方法的 CoMo/USY 催化剂的性能。已经进行了顺序和共浸渍方法，然后使用煅烧和还原过程进行活化。使用傅里叶变换红外 (FTIR) 光谱、带精修的 X 射线衍射 (XRD) 和表面积分析仪 (SAA) 检查催化剂的性能。FTIR 光谱研究揭示了其布朗斯台德酸位点的强度增强，XRD 衍射图验证了催化剂中纯金属、氧化物和合金的组成。SAA 证明了催化剂的介孔特性。扫描电子显微镜显示不规则颗粒形态。