Stimuli‐Responsive Metallogels for Synthesizing Ag Nanoparticles and Sensing Hazardous Gases

Abstract

A newly synthesized bis-pyridyl ligand having a diphenyl ether backbone (LP6) displayed the ability to form crystalline coordination polymers (CP1-CP6) which were fully characterized by single crystal X-ray diffraction. Most of the resulting polymers were lattice-occluded crystalline solids-a structural characteristic reminiscent to gels. The reactants of the coordination polymers produced metallogels in DMSO/water confirming the validity of the design principles with which the coordination polymers were synthesized. Some of the metallogels displayed material properties like in situ synthesis of Ag nanoparticles and stimuli-responsive gel-sol transition including sensing hazardous gases like ammonia and hydrogen sulfide.

Au–Ag Nanoflower Catalysts with Clean Surfaces for Alcohol Oxidation

“…Noble‐metal nanocrystals (NCs) are very important for applications in fields such as electrochemistry, electronics, magnetic storage, catalyst, and biotechnology . The properties of a metal NC are dependent on its morphology, including size and shape .…”

“…Noble-metal nanocrystals (NCs) are very important for applications in fields such as electrochemistry,e lectronics, magnetic storage, catalyst, andb iotechnology. [1][2][3][4][5][6][7][8][9][10][11][12][13] The properties of a metal NC are dependento ni ts morphology, including size and shape. [1][2][3][4][5][6] Therefore, many methods for the preparation of NCs with various shapes, such as nanoflowers, [14][15][16][17] nanocubes, [18][19][20][21] nanorods, [22][23][24] and nanowires, [25][26][27][28][29][30][31] with the desired properties have been reported.…”

Zirconium-based metal–organic framework gels for selective luminescence sensing

“…Metal-organic gels combine the advantages of stimuli-response of physical gels (weak non-covalent interactions) and stability of chemical gels (strong chemical bonds). [1][2][3][4] Metal-organic gels have found applications in various elds such as sensing, [5][6][7][8][9][10] catalysis, [11][12][13][14] environmental remediation, 15,16 renewable energy conversion, [17][18][19] and templates for nanomaterials. 20 Metalorganic framework (MOF)-based gels are particularly interesting because they incorporate MOF nanoparticles with well-dened microporosity in their gel matrix.…”

Ultrasensitive detection of uric acid in serum of patients with gout by a new assay based on Pt@Ag nanoflowers

“…Precious metal nanomaterials have a wide range of applications in catalysis and assays due to their unique physical and chemical properties. 24,25 More importantly, the bimetallic nanostructures have synergistic and controllable catalytic properties compared with their mono-metallic nanostructures. 26 So far, nanomaterials of various shapes have been synthesized by chemical methods, such as nanowires, 27 nanotubes, 28 nanorods 29 and nanowires.…”