水热法制备Ni-Sm/SiC催化剂甲烷二氧化碳重整性能的研究

Ni-Sm/SiC catalysts prepared by hydrothermal method for carbon dioxide reforming of methane

摘要: 通过水热法制备了Ni-Sm/SiC催化剂（Ni的含量固定为9%，钐的含量固定为5%）。采用XRD、BET、ICP、H₂-TPR、TG-DTA和TEM等技术对催化剂进行表征。对催化剂在甲烷二氧化碳重整反应中的催化活性、不同镍前驱体的影响、催化剂的积炭行为进行了研究。研究结果表明，水热法制备的Ni-Sm/SiC催化剂有着优异的催化活性、稳定性和抗积炭能力。不同镍前驱体对催化剂的性能没有影响。

Abstract: Ni-Sm/SiC (Ni:9%, Sm:5%) catalysts were prepared by a hydrothermal route for carbon dioxide reforming of methane. The catalysts were characterized by XRD, BET, ICP, H₂-TPR, TG-DTA and TEM. The catalytic performance, influence of different nickel precursors and carbon deposition in the CO₂ reforming of CH₄ were investigated. The results suggested that the Ni-Sm/SiC catalysts prepared by a hydrothermal route showed excellent catalytic activity, stability and good coke resistance. Different nickel precursors nearly had no impact on the performance of the catalysts.