Zr-based metal-organic framework nanocable catalysts comprising MTe(M = Pt, PtCu)@UIO-67 resembling “sugarcoated haws on a stick” were assembled. Ultrathin Te nanowires with diameters of about 8.48 nm served as a sacrificial template for the epitaxial growth of an outer M (Pt or PtCu) to obtain cable cores comprising MTe nanowires with good dispersity, which were then successfully encapsulated in the center of a monodisperse MTe@UIO-67 cable nano-structured catalyst. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD) and energy dispersive X-ray (EDX) element mapping were used to investigate the morphology, structure and composition of the nanocable catalysts. Six types of catalysts were synthesized, and all of the catalysts demonstrated superior product selectivity to CO for reverse water-gas shift (RWGS) reaction. Especially, the morphology and dispersion of PtCuTe@UIO-67 nanocable catalyst can be maintained to some extent after catalysis at high temperature, and PtTe@UIO-67 catalyzed CO₂ conversion was achieved with 99.86% CO selectivity.

组装了类似于“棒上的糖衣山楂”的包含MTe（M = Pt，PtCu）@ UIO-67的Zr基金属-有机骨架纳米电缆催化剂。直径约8.48 nm的超细Te纳米线用作外M（Pt或PtCu）外延生长以获得包含具有良好分散性的MTe纳米线的电缆芯的牺牲模板，然后成功地将其封装在单分散MTe的中心@ UIO-67电缆纳米结构催化剂。利用透射电子显微镜（TEM），扫描电子显微镜（SEM），粉末X射线衍射（XRD）和能量色散X射线（EDX）元素图谱研究了纳米电缆催化剂的形貌，结构和组成。合成了六种催化剂，并且所有催化剂均显示出对逆向水煤气变换（RWGS）反应具有优异的CO选择性。特别是在高温下催化后，PtCuTe @ UIO-67纳米电缆催化剂的形貌和分散性可以保持一定程度，而PtTe @ UIO-67纳米催化的CO_2的转化率达到了99.86％的CO选择性。