A series of spherical mesoporous Ni/Dendritic Fibrous SBA-15 (Ni/DFSBA-15) catalysts with different Ni loadings (3–15 wt.%) were successfully synthesized and catalytically investigated by methane dry reforming. The XRD and Raman analyses indicated the structural stability of DFSBA-15 regardless of the Ni loading quantity, and the NiO nanocrystalline size increased with increasing Ni loading. The BET analysis showed the surface area of the catalysts decreased upon increment in Ni loading. Meanwhile, the TEM images revealed the distribution of Ni particles over the spherical shape DFSBA-15, with the most homogeneous dispersion was shown by 10Ni/DFSBA15, while Ni agglomeration was observed for 15Ni/DFSBA-15. The optimal catalytic performance and stability was achieved by 10Ni/DFSBA-15 ($X_{{CO}_2}$ = 93.11%, $X_{{CH}_4}$ = 91.76%, $Y_{H_2}$ = 91.77%, Y_CO = 96.35%, S_CO = 48.89%, $S_{H_2}$ = 46.57% and H₂/CO = 0.95) with no sign of deactivation was observed for 30 h time-on-stream, in agreement with the XRD, XPS, and TGA analyses of spent catalysts. The superior catalytic performance by 10Ni/DFSBA-15 could be credited to its strong Si-O-Ni interaction, moderate NiO crystallite size, and homogeneous active metal dispersion. The favorable properties of 10Ni/DFSBA-15 led to a strong synergistic effect between Ni active metal sites and the DFSBA-15 support and thus enhanced the reactivity between two gaseous reactants, CH₄ and CO₂. The 10 wt.% Ni loading was certified as optimal Ni content to sufficiently suppress the coke deposition on the DFSBA-15 and thus enhance the catalytic activity and stability.

成功地合成了一系列球形的介孔Ni /树突状纤维SBA-15（Ni / DFSBA-15）催化剂，这些催化剂具有不同的Ni负载量（3-15 wt％），并通过甲烷干重整进行了催化研究。XRD和拉曼分析表明DFSBA-15的结构稳定性与Ni负载量无关，并且NiO纳米晶尺寸随Ni负载量的增加而增加。BET分析表明，催化剂的表面积随Ni负载量的增加而降低。同时，TEM图像显示了Ni颗粒在球形DFSBA-15上的分布，其中最均匀的分散由10Ni / DFSBA15显示，而Ni的团聚在15Ni / DFSBA-15中观察到。通过10Ni / DFSBA-15（$X_{{CØ}_{\mathrm{2个}}}$ = 93.11％， $X_{{CH}_4}$ = 91.76％， ${ÿ}_{H_{\mathrm{2个}}}$= 91.77％，Y _CO = 96.35％，S _CO = 48.89％，${\mathrm{小号}}_{H_{\mathrm{2个}}}$在运行30小时的时间内，没有观察到失活迹象，H.O。= 46.57％和H ₂ / CO = 0.95），这与废催化剂的XRD，XPS和TGA分析一致。10Ni / DFSBA-15具有出色的催化性能，可以归因于其强大的Si-O-Ni相互作用，适中的NiO晶粒尺寸和均一的活性金属分散体。10Ni / DFSBA-15的良好性能导致Ni活性金属位点与DFSBA-15载体之间具有强大的协同作用，从而增强了两种气态反应物CH ₄和CO ₂之间的反应性。10％（重量）的Ni含量被证明是最佳的Ni含量，以充分抑制焦炭在DFSBA-15上的沉积，从而增强催化活性和稳定性。