Wu Ya-Pan, Tian Jun-Wu, Liu Shan, Li Bo, Zhao Jun, Ma Lu-Fang, Li Dong-Sheng, Lan Ya-Qian, Bu Xianhui
College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, China.
College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, 471934, China.
Angew Chem Int Ed Engl. 2019 Aug 26;58(35):12185-12189. doi: 10.1002/anie.201907136. Epub 2019 Aug 5.
Embedding cubane [M (OH) ] (M=Ni, Co) clusters within the matrix of metal-organic frameworks (MOFs) is a strategy to develop materials with unprecedented synergistic properties. Herein, a new material type based on the pore-space partition of the cubic primitive minimal-surface net (MOF-14-type) has been realized. CTGU-15 made from the [Ni (OH) ] cluster not only has very high BET surface area (3537 m g ), but also exhibits bi-microporous features with well-defined micropores at 0.86 nm and 1.51 nm. Furthermore, CTGU-15 is stable even under high pH (0.1 m KOH), making it well suited for methanol oxidation in basic medium. The optimal hybrid catalyst KB&CTGU-15 (1:2) made from ketjen black (KB) and CTGU-15 exhibits an outstanding performance with a high mass specific peak current of 527 mA mg and excellent peak current density (29.8 mA cm ) at low potential (0.6 V). The isostructural cobalt structure (CTGU-16) has also been synthesized, further expanding the application potential of this material type.
将立方烷[M(OH)]（M = Ni、Co）簇嵌入金属有机框架（MOF）的基质中是开发具有前所未有的协同特性材料的一种策略。在此，基于立方原始最小表面网络（MOF-14型）的孔空间划分实现了一种新型材料。由[Ni(OH)]簇制成的CTGU-15不仅具有非常高的BET表面积（3537 m² g⁻¹），而且呈现出双微孔特征，在0.86 nm和1.51 nm处具有明确界定的微孔。此外，CTGU-15即使在高pH值（0.1 m KOH）下也很稳定，使其非常适合在碱性介质中进行甲醇氧化。由科琴黑（KB）和CTGU-（1:2）制成的最佳混合催化剂KB&CTGU-15在低电位（0.6 V）下表现出出色的性能，具有527 mA mg⁻¹的高质量比峰值电流和优异的峰值电流密度（29.8 mA cm⁻²）。还合成了同构钴结构（CTGU-16），进一步扩大了这种材料类型的应用潜力。
