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采用络合燃烧法制备催化剂LaCo0.9M0.1O3(M=Pd、Cu),X射线衍射(XRD)表征催化剂的结构,利用程序升温氧化(O2-TPO)测试催化剂的活性。结果表明,以Pd、Cu对LaCo0.9M0.1O3的B位进行部分取代后,催化剂仍较好的保持了钙钛矿结构,Cu引入后催化剂催化碳黑燃烧的活性,得到明显提高。
The catalysts were characterized by X-ray diffraction (XRD) and LaCo0.9M0.1O3 (M = Pd, Cu) catalysts prepared by the complex combustion method. The catalytic activity was measured by temperature programmed oxidation (O2-TPO). The results show that the catalyst retains the perovskite structure after partial substitution of Pd and Cu on the B site of LaCo0.9M0.1O3, and the catalytic activity of the catalyst for carbon black combustion after Cu introduction is significantly improved.