Metal-organic framework material for hydrogen production reaction by water electrolysis and preparation of nanosheet material of metal-organic framework material

A technology of metal-organic frameworks and organic frameworks, applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, to achieve high yield, good reproducibility, and simple synthesis methods

Active Publication Date: 2018-12-14
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the many defects caused by the micron-level size effect of the current MOFs materials, the present invention provides a transition metal cobalt-based organic framework material and its nanosheet preparation method based on 1,4-naphthalene diacid and monothiopyridine and its Application of electrolysis water hydrogen production catalyst

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  • Metal-organic framework material for hydrogen production reaction by water electrolysis and preparation of nanosheet material of metal-organic framework material
  • Metal-organic framework material for hydrogen production reaction by water electrolysis and preparation of nanosheet material of metal-organic framework material
  • Metal-organic framework material for hydrogen production reaction by water electrolysis and preparation of nanosheet material of metal-organic framework material

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Effect test

Embodiment 1

[0038] Under sealed conditions, 0.2mmol Co(Cl 4 ) 2 ·6H 2 O (20mg), 0.1mmol 1,4-naphthalene dioic acid (20mg), 0.1mmol monothiopyridine (18mg) were added to 4mL of deionized water and mixed, then sodium hydroxide was added to adjust the pH of the solution to be 7, after stirring Put it into a stainless steel reaction kettle lined with polytetrafluoroethylene, react at a constant temperature of 140°C for 72h, and cool down to room temperature at a constant rate of 2-3°C / h to obtain purple blocky crystals, which are transition metal cobalt-based organic framework materials[ Co(1,4-ndc)(Py 2 S)(H 2 O)] n Crystalline material, structure see appendix Figure 1-9 related content.

Embodiment 2

[0040] Under sealed conditions, 0.1mmol Co(Cl 4 ) 2 ·6H 2 O (10mg), 0.1mmol1, 4-naphthalene dioic acid (20mg), 0.1mmol monothiopyridine (18mg), were added to 4mL of deionized water and mixed, then adding sodium hydroxide to it to adjust the pH of the solution to be 7, after stirring Put it into a stainless steel reactor lined with polytetrafluoroethylene, react at a constant temperature of 140°C for 96h, and cool down to room temperature at a constant rate of 2-3°C / h to obtain purple blocky crystals, which are transition metal cobalt-based organic framework materials[ Co(1,4-ndc)(Py 2 S)(H 2 O)] n crystalline material.

Embodiment 3

[0042] Under sealed conditions, 0.2mmol Co(Cl 4 ) 2 ·6H 2 O (20mg), 0.1mmol1, 4-naphthalene dioic acid (20mg), 0.1mmol monothiopyridine (18mg), were added to 4mL of deionized water and mixed, then adding sodium hydroxide to it to adjust the pH of the solution to be 8, after stirring Put it into a stainless steel reaction kettle lined with polytetrafluoroethylene, react at a constant temperature of 120°C for 96h, and cool down to room temperature at a constant rate of 2-3°C / h to obtain purple blocky crystals, which are transition metal cobalt-based organic framework materials[ Co(1,4-ndc)(Py 2 S)(H 2 O)] n crystalline material.

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Abstract

The invention relates to a metal-organic framework material for a hydrogen production reaction by water electrolysis and a preparation of a nanosheet structure of the material and belongs to the technical field of crystalline materials. The material has the structural formula as follows: [Co(1,4-ndc)(Py2S)(H2O)]n, wherein n denotes positive infinity, 1,4-ndc denotes 1,4-naphthalic acid, and Py2S denotes single sulfur pyridine. The metal-organic framework material adopts a two-dimensional network structure formed by transition metal ions, an organic ligand 1,4-naphthalenedicarboxylic acid and an auxiliary ligand single sulfur pyridine through coordinate bonds or intermolecular force. The transition metal ions are preferably selected from bivalent cobalt and nickel ions. The metal-organic framework material has good thermal stability. A nanosheet prepared with the metal-organic framework as a precursor has relatively excellent proton transfer and electron exchange capability and highly exposed catalytic activity sites and has better performance for hydrogen production by water electrolysis. The metal-organic framework material can also be expected to serve as an efficient novel catalyst material for hydrogen production by water electrolysis.

Description

technical field [0001] The invention designs a metal-organic framework material and a nanosheet preparation method for hydrogen production by electrolysis of water, and belongs to the technical field of metal-organic framework materials and nanosheets. Background technique [0002] Electrolyzed water hydrogen production technology is an effective way to obtain green energy hydrogen energy in the future. Platinum, as an efficient catalyst for hydrogen production by electrolysis of water, is expensive, has few earth reserves, and is prone to catalyst poisoning, which is not conducive to the harmonious development of hydrogen energy and hydrogen economy. Regeneration and efficient and rational utilization have far-reaching significance. [0003] MOF is a highly crystalline solid material formed by organic ligands and metal atomic nodes through coordination bonds. It has the characteristics of adjustable structure, diverse functions, rich active sites, large specific surface ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J31/22B82Y30/00B82Y40/00C25B1/04C25B11/06
CPCB01J31/1691B01J31/2243B01J35/0033B82Y30/00B82Y40/00C08G83/008C25B1/04C25B11/04Y02E60/36
Inventor 吴亚盘王萧李东升赵君兰亚乾刘云凌张健张其春
Owner CHINA THREE GORGES UNIV
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