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Metal nanoparticle-PCP complex and manufacturing method therefor

A technology of metal nanoparticles and manufacturing methods, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of limited composite effect of metal nanoparticles and PCP, and achieve the effect of high degree of freedom and high selectivity

Inactive Publication Date: 2014-04-09
KYOTO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Non-Patent Document 1 prefabricated PCP and composited metal nanoparticles, thereby having a structure in which metal nanoparticles were attached to the outside of PCP, and the composite effect of metal nanoparticles and PCP was limited.

Method used

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  • Metal nanoparticle-PCP complex and manufacturing method therefor
  • Metal nanoparticle-PCP complex and manufacturing method therefor
  • Metal nanoparticle-PCP complex and manufacturing method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] (1) Synthesis of Pd cubes ( figure 1 )

[0083] Combination with PCP was studied using cubic active metal species (Pd).

[0084] Cubic Pd is obtained by adding polyvinylpyrrolidone (PVP; 105mg), ascorbic acid (60mg) and KBr (300mg) to Na2PdCl4 aqueous solution (17.4mM), and reducing at 80°C for 3 hours to obtain Pd nanoparticles with PVP attached to the surface (10nm).

[0085] (2) Ligand replacement (PVP→SAM)

[0086] Add HOOC-(CH 2 ) 10 -SH (70mg) in ethanol, reacted at 80°C for 1 hour, so that HOOC-(CH 2 ) 10 -SH is bonded to the Pd particle via the SH group.

[0087] HOOC-(CH 2 ) 10 -SH accumulates PCP from the surface of the active metal species, so it replaces the metal (Pd) surface with a self-assembled monomolecular film (SAM) having the same functional group (COOH) as the ligand component of PCP at the end And used.

[0088] (3) Composite

[0089] Add Zn(NO 3 ) 2 / DMF (40mg), reacted at 100°C for 1.5 hours, and bonded Zn ions to HOOC-(CH 2 ) 10 ...

Embodiment 2

[0094] The composite obtained in Example 1 was used as an electrode catalyst to carry out formic acid oxidation reaction. Add 2.5 mg of cubic active metal species and 2.5 mg of carbon paste (CPO) to the composite to 11.5 μl of ethanol and 11.5 μl of “Nafion (registered trademark)” [manufactured by DuPont, 10 times the solid content concentration of 5% by mass] Diluted sample] in a mixed solvent, irradiated with ultrasonic waves to make a suspension. Apply 23 μL of the suspension to a glassy carbon electrode [diameter 3 mm, electrode area 7.1 mm 2 ], dried to obtain a modified electrode. The modified electrode is immersed in a mixed solution of sulfuric acid with a concentration of 0.5M and 1.0M formic acid, and at room temperature, atmospheric pressure, and argon atmosphere, the potential of the silver-silver chloride electrode is scanned in the range of -0.1 to 1.00V, A scan rate of 10 mV / s cycles the potential. The results are shown in Figure 6 .

[0095] Similar to Do...

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Abstract

The present invention provides a complex in which metal nanoparticles are included in a porous coordination polymer (PCP), wherein the PCP is configured from a metal ion and an organic ligand.

Description

technical field [0001] The present invention relates to a complex having metal nanoparticles and PCP (Porous Coordination Polymer; porous coordination polymer) and its production method. Background technique [0002] The development of a PCP composite catalyst having a structure in which PCP is coated on the surface of the nanocatalyst is indispensable in order to capture the gas involved in the catalytic reaction by PCP, make it react reliably, and realize a high-efficiency and high-selectivity reaction. [0003] Non-Patent Document 1 has a structure in which metal nanoparticles are attached to the outside of PCP by compounding metal nanoparticles after producing PCP in advance, and the composite effect of metal nanoparticles and PCP is limited. [0004] Non-Patent Document 2 makes metal ions (Al, Cu) and ligands (bpdc, btc) act in the presence of iron oxide to form a complex of metal ions and ligands, but this complex is used for the slowing down of drugs. For application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G79/00B01J35/08B01J37/04B82Y30/00C08K3/00C08L85/00C07C63/307C07C65/03C07F1/08C07F3/06C07F5/06
CPCB01J37/04C07C63/307B82Y30/00C08K3/00B01J31/06B01J23/44B01J35/002C07C65/03B01J35/08C08L85/00B01J35/0013C01C1/0411C08G79/00B82Y40/00B01J37/0209C07C51/00B01J35/026B01J31/1691B01J31/1815B01J31/2239B01J2231/62B01J2531/26B01J2540/10B01J23/40B01J23/48B01J23/70H01M4/92B01J2531/0205C08K3/08C08K2201/011Y02E60/50B01J35/398B01J35/23B01J35/51C07F1/08C07F3/06C07F5/06B01J2531/0213
Inventor 北川宏小林浩和
Owner KYOTO UNIV
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