113919-79-2Relevant articles and documents
Improved photocatalytic performance of metal-organic frameworks for CO2conversion by ligand modification
Cheng, Xiuyan,Zhang, Jianling,Tan, Xiuniang,Zheng, Lirong,Tan, Dongxing,Liu, Lifei,Chen, Gang,Wan, Qiang,Zhang, Bingxing,Zhang, Fanyu,Su, Zhuizhui,Han, Buxing,Zhang, Jing
, p. 7637 - 7640 (2020)
Here we demonstrate that the utilization of 2,4,6-tris(4-pyridyl)pyridine (tpy) for metal-organic framework modification can greatly improve the photocatalytic performance for CO2 reduction. The electron-donating nature of tpy enables the charge transfer effect, which induces strong CO2 binding affinity, facilitates ?COOH formation and promotes CO2-to-CO conversion.
Zinc(ii) coordination polymers, metallohexacycles and metallocapsules - Do we understand self-assembly in metallosupramolecular chemistry: Algorithms or serendipity?
Constable, Edwin C.,Zhang, Guoqi,Housecroft, Catherine E.,Zampese, Jennifer A.
, p. 6864 - 6870 (2011)
Using a strategy of layering solvents and solutions of ligands and metal salts under ambient conditions, we observe the assembly of a discrete molecular metallohexacycle from ZnCl2 and 4′-(4-ethynylphenyl)-4, 2′:6′,4′′-terpyridine, polycatenated, triply interlocked metallocapsules from ZnI2 and 4′-(4-pyridyl)-4,2′: 6′,4′′-terpyridine, and 1-dimensional coordination polymers from either ZnCl2 or ZnI2 with 4′-{4-(3- chloropyridyl)}-4,2′:6′,4′′-terpyridine. On the basis of these studies and a comparison with related structures in the literature, we urge crystal engineers to be wary of drawing conclusions about self-assembly algorithms in solution using data from single crystal determinations. The Royal Society of Chemistry 2011.
A Single-Crystal Open-Capsule Metal-Organic Framework
Wei, Yong-Sheng,Zhang, Mei,Kitta, Mitsunori,Liu, Zheng,Horike, Satoshi,Xu, Qiang
, (2019)
Micro-/nanocapsules have received substantial attention due to various potential applications for storage, catalysis, and drug delivery. However, their conventional enclosed non-/polycrystalline walls pose huge obstacles for rapid loading and mass diffusion. Here, we present a new single-crystal capsular-MOF with openings on the wall, which is carefully designed at the molecular level and constructed from a crystal-structure transformation. This rare open-capsule MOF can easily load the largest amounts of sulfur and iodine among known MOFs. In addition, derived from capsular-MOF and melamine through pyrolysis-phosphidation, we fabricated a nitrogen-doped capsular carbon-based framework with iron-nickel phosphide nanoparticles immobilized on capsular carbons interconnected by plentiful carbon nanotubes. Benefiting from synergistic effects between the carbon framework and highly surface-exposed phosphide sites, the material exhibits efficient multifunctional electrocatalysis for oxygen evolution, hydrogen evolution, and oxygen reduction, achieving well-qualified assemblies of an overall water splitting (low potential of 1.59 V at 10 mA·cm-2) and a rechargeable Zn-air battery (high peak power density of 250 mW·cm-2 and excellent stability for 500 h), which afford remarkably practical prospects over previously known electrocatalysts.
A Single-Crystal Open-Capsule Metal-Organic Framework
Wei, Yong-Sheng,Zhang, Mei,Kitta, Mitsunori,Liu, Zheng,Horike, Satoshi,Xu, Qiang
, p. 7906 - 7916 (2019/05/22)
Micro-/nanocapsules have received substantial attention due to various potential applications for storage, catalysis, and drug delivery. However, their conventional enclosed non-/polycrystalline walls pose huge obstacles for rapid loading and mass diffusion. Here, we present a new single-crystal capsular-MOF with openings on the wall, which is carefully designed at the molecular level and constructed from a crystal-structure transformation. This rare open-capsule MOF can easily load the largest amounts of sulfur and iodine among known MOFs. In addition, derived from capsular-MOF and melamine through pyrolysis-phosphidation, we fabricated a nitrogen-doped capsular carbon-based framework with iron-nickel phosphide nanoparticles immobilized on capsular carbons interconnected by plentiful carbon nanotubes. Benefiting from synergistic effects between the carbon framework and highly surface-exposed phosphide sites, the material exhibits efficient multifunctional electrocatalysis for oxygen evolution, hydrogen evolution, and oxygen reduction, achieving well-qualified assemblies of an overall water splitting (low potential of 1.59 V at 10 mA·cm-2) and a rechargeable Zn-air battery (high peak power density of 250 mW·cm-2 and excellent stability for 500 h), which afford remarkably practical prospects over previously known electrocatalysts.
