Ni/Al/Mg layered double hydroxides (LDHs) modified with low loading of yttrium (0.2 and 0.4 wt%) were used in dry reforming of methane at 700 °C. Physicochemical characterization, such as: X-ray fluorescence, N₂ sorption, X-ray diffraction, temperature programmed reduction in H₂, temperature programmed desorption of CO₂, H₂ chemisorption, thermogravimetry analysis coupled by mass spectrometry and Raman spectroscopy, showed that the introduction of low loadings of yttrium lead to a smaller Ni° crystallite size, a decrease in reducibility of the nickel, and a decreased number of basic sites in the modified Ni/LDHs catalysts. The doping with 0.4 wt% of Y improves catalytic activity resulting in higher CH₄ and CO₂ conversions at 700 °C, i.e., ca. 84% and ca. 87%, respectively with no clear deactivation observed after 5 h run. The increase in CO₂ conversion and a decrease of H₂/CO ratio indicates that side reactions occurs during DRM.

低负载钇量（0.2和0.4 wt％）改性的Ni / Al / Mg层状双氢氧化物（LDHs）用于在700°C的甲烷干重整中。物理化学表征，例如：X射线荧光，N ₂吸附，X射线衍射，H _2的程序升温还原，CO _2的程序升温脱附，H ₂化学吸附，质谱和拉曼光谱相结合的热重分析表明：低含量钇的引入导致较小的Ni°微晶尺寸，镍还原性的降低以及改性Ni / LDHs催化剂中碱性位点的减少。掺入0.4 wt％的Y可改善催化活性，从而提高CH ₄700°C时的CO2和CO ₂转化率，即约 约84％运行5小时后，没有观察到明显的失活，分别为87％。CO ₂转化率的增加和H ₂ / CO比的降低表明在DRM期间发生了副反应。