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A kind of nickel foam in situ loading sno 2 Preparation method and application of nanoparticle-doped graphitic carbon composite material

A composite material and nanoparticle technology, applied in the fields of nanomaterials, nanocatalysis, and metal organic framework materials, can solve the problems of unreported research and high cost

Active Publication Date: 2021-05-14
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Iridium dioxide (IrO 2 ) and ruthenium dioxide (RuO 2 ) is a component with good performance in the current oxygen evolution catalyst, but the cost is relatively high. Therefore, it is an opportunity and a challenge to develop a non-precious metal oxygen evolution catalyst with high efficiency, low price and abundant earth content, and to reduce the electricity consumption of oxygen evolution
At present, the research on the preparation of oxygen evolution catalysts using MIL-53(Fe) as the precursor has been reported. As far as we know, the research on the preparation of oxygen evolution catalysts by doping two-dimensional tin oxide on this basis has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 A nickel foam in situ loading SnO 2 Preparation method of nanoparticle-doped graphitic carbon composite material

[0024] 0.165 g terephthalic acid H 2 Dissolve BDC and 0.30 g ferric nitrate nonahydrate in 8 mL DMF, add 0.08 g tin powder after ultrasonication for 3 min, and continue ultrasonication for 3 min to obtain a mixed solution;

[0025] In this mixed solution, the activated nickel foam NiF with an area of ​​1 cm×1 cm was used as the working electrode, the platinum sheet was used as the counter electrode, and the calomel electrode was used as the reference electrode, and the Sn(IV) / Fe(III)-BDC / NiF composite material;

[0026] The Sn(IV) / Fe(III)-BDC / NiF composite was heated to 250 °C at a heating rate of 2 °C / min in an air atmosphere, kept for 2 h, and then cooled at a cooling rate of 2 °C / min to room temperature; SnO 2 @C / NiF composite material, that is, Ni foam supports SnO in situ 2 Nanoparticle-doped graphitic carbon composites;

[0027]The ac...

Embodiment 2

[0032] Example 2 A nickel foam in situ loading SnO 2 Preparation method of nanoparticle-doped graphitic carbon composite material

[0033] 0.166 g terephthalic acid H 2 Dissolve BDC and 0.40 g ferric nitrate nonahydrate in 10 mL DMF, add 0.10 g tin powder after ultrasonication for 4 min, and continue ultrasonication for 4 min to obtain a mixed solution;

[0034] In this mixed solution, the activated nickel foam NiF with an area of ​​1 cm×1 cm was used as the working electrode, the platinum sheet was used as the counter electrode, and the calomel electrode was used as the reference electrode, and the Sn(IV) / Fe(III)-BDC / NiF composite material;

[0035] The Sn(IV) / Fe(III)-BDC / NiF composite was heated to 300 °C at a heating rate of 2 °C / min in an air atmosphere, kept for 2 h, and then cooled at a cooling rate of 2 °C / min to room temperature; SnO 2 @C / NiF composite material, that is, Ni foam supports SnO in situ 2 Nanoparticle-doped graphitic carbon composites;

[0036] The ...

Embodiment 3

[0040] Example 3 A nickel foam in situ loading SnO 2 Preparation method of nanoparticle-doped graphitic carbon composite material

[0041] 0.167 g terephthalic acid H 2 Dissolve BDC and 0.50 g ferric nitrate nonahydrate in 12 mL DMF, add 0.12 g tin powder after ultrasonication for 5 min, and continue ultrasonication for 5 min to obtain a mixed solution;

[0042] In this mixed solution, the activated nickel foam NiF with an area of ​​1 cm×1 cm was used as the working electrode, the platinum sheet was used as the counter electrode, and the calomel electrode was used as the reference electrode, and the Sn(IV) / Fe(III)-BDC / NiF composite material;

[0043] The Sn(IV) / Fe(III)-BDC / NiF composite was heated to 350 °C at a heating rate of 2 °C / min in an air atmosphere, kept for 2 h, and then cooled at a cooling rate of 2 °C / min to room temperature; SnO 2 @C / NiF composite material, that is, Ni foam supports SnO in situ 2 Nanoparticle-doped graphitic carbon composites. The activated...

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Abstract

The invention discloses an in-situ loading of SnO on foamed nickel 2 The preparation method of nanoparticle-doped graphite-carbon composite material and the application of electrolysis of water and oxygen evolution based on the catalyst belong to the technical fields of nanomaterials, nanocatalysis, and metal-organic framework materials. The main steps are electrodepositing nickel foam in terephthalic acid and iron (Ⅲ) solution with tin powder, and annealing the obtained composite material in air atmosphere at 300°C. The catalyst is prepared with low raw material cost, simple preparation process, low reaction energy consumption, and has industrial application prospects. The catalyst is used for efficiently catalyzing oxygen evolution in electrolyzed water, and has good oxygen evolution electrocatalytic activity and electrochemical stability.

Description

technical field [0001] The invention relates to a foamed nickel in-situ loaded SnO 2 The preparation method of nanoparticle-doped graphite-carbon composite material and the application of electrolysis of water and oxygen evolution based on the catalyst belong to the technical fields of nanometer catalysis, nanometer material and metal organic framework material. Background technique [0002] The rapid development of modern society has caused a huge demand for environmentally friendly and renewable energy hydrogen. As an ideal energy source, it is proposed to become the main energy source in the future world and belongs to the secondary energy source. Today, hydrogen is produced primarily through steam methane reforming of natural gas (i.e., the reaction between water and methane to form H 2 and CO 2 ). Therefore, the production of hydrogen is now accompanied by a series of greenhouse effects, which are neither regenerative nor carbon neutral. Compared with hydrogen produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/62
CPCH01M4/62Y02E60/10
Inventor 赵璐王志玲
Owner UNIV OF JINAN
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