Supported Ni catalysts (4.5 wt%) using a Ce-Zr oxide (18/82 molar ratio and a ceria-rich surface) depicting advanced redox properties, were deposited by washcoating over cordierite honeycombs (230 and 400 cpsi). FIB-STEM unveiled nanostructure details otherwise undistinguishable by conventional techniques. The catalytic performance was evaluated in the dry reforming of methane at 700−900 °C, using a CH₄:CO₂ 1:1 feedstock, and exploring high Weight Hourly Space Velocity (115−346 L g⁻¹ h⁻¹). The structured catalysts exhibited better performance than the corresponding powders, reaching values close to thermodynamic limits for both reactants conversion and H₂/CO ratio, from 750 °C, and no deactivation was observed in prolonged experiments (24−48 h). This was related to both the high catalyst efficiency after being deposited with low loading on the cordierite and the intrinsic advantages of the monolithic reactor, like preventing from the kinetic control that operates in powdered samples under high WHSV or limiting the deactivation.

使用具有先进氧化还原性能的 Ce-Zr 氧化物（18/82 摩尔比和富含氧化铈的表面）的负载型 Ni 催化剂（4.5 重量％）通过在堇青石蜂窝（230 和 400 cpsi）上涂层沉积。FIB-STEM 揭示了传统技术无法区分的纳米结构细节。使用 CH ₄ :CO ₂ 1:1 原料，在 700-900 °C 的甲烷干重整中评估催化性能，并探索高重量时空速度 (115-346 L g ^-1 h ^-1 )。结构化催化剂表现出比相应粉末更好的性能，达到接近反应物转化率和 H ₂热力学极限的值/CO 比率，从 750 °C 开始，在长时间的实验（24-48 小时）中未观察到失活。这与在堇青石上以低负载量沉积后的高催化剂效率和整体反应器的固有优势有关，例如防止在高 WHSV 下在粉末样品中运行的动力学控制或限制失活。