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Preparation method of methanol catalytic oxidation photoelectric catalyst

A catalytic oxidation, photoelectric catalysis technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., to achieve enhanced light capability, increased current density, and low equipment requirements Effect

Inactive Publication Date: 2021-03-23
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the use of unsupported platinum alloys as catalysts for the photoelectrochemical oxidation of methanol

Method used

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  • Preparation method of methanol catalytic oxidation photoelectric catalyst
  • Preparation method of methanol catalytic oxidation photoelectric catalyst
  • Preparation method of methanol catalytic oxidation photoelectric catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Pt 30 Ni 70 The preparation process of alloy nanoparticles is as follows:

[0032] Configure 20mM K 2 PtCl 4 solution, 20mM NiCl 2 ·6H 2 O solution, 2mg mL -1 TA (tannic acid) solution and 100mM NaBH 4 . Use a pipette gun according to the volume ratio of 3:7, take 20mM K 2 PtCl 4 Solution 1.8ml and 20mM NiCl 2 ·6H 2 Mix 4.2ml O solution in a 50mL round bottom flask, add 3ml 2mg mL -1 TA (tannic acid) solution. Put it into an ultrasonic machine for the first ultrasonic 30min (where the temperature is controlled in an ice bath -5°C-0°C); take 1.8ml 100mM NaBH 4 Immediately add to the above ultrasonic solution for the second ultrasonic 30min; after 30min, take out and wash repeatedly with deionized water and ethanol, and dry at 60°C for 12h to obtain Pt 30 Ni 70 Nano alloy materials.

Embodiment 2

[0034] Pt 50 Ni 50 The preparation process of alloy nanoparticles is as follows:

[0035] Configure the solution as in Example 1, use a pipette gun in a volume ratio of 1:1, and take 20mM K 2 PtCl 4 Solution 3ml and 20mM NiCl 2 ·6H 2 Mix 3ml of O solution in a 50mL round bottom flask, add 3ml of 2mg mL -1 TA solution. Put it into an ultrasonic machine for the first ultrasonic 30min (where the temperature is controlled in an ice bath -5°C-0°C); take 3ml 100mM NaBH 4 Immediately add the above ultrasonic solution to the second ultrasonic 30min; the subsequent washing and drying steps are the same as in Example 1.

Embodiment 3

[0037] Pt 80 Ni 20 The preparation process of alloy nanoparticles is as follows:

[0038] Configure the solution as in Example 1, use a pipette gun in a volume ratio of 4:1, and take 20mM K 2 PtCl 4 Solution 4.2ml and 20mM NiCl 2 ·6H 2 Mix 1.8ml O solution in a 50mL round bottom flask, add 3ml 2mg mL -1 TA solution. Put it into an ultrasonic machine for the first ultrasonic 30min (where the temperature is controlled in an ice bath -5°C-0°C); take 4.2ml 100mM NaBH 4 Immediately add the above ultrasonic solution to the second ultrasonic 30min; the subsequent washing and drying steps are the same as in Example 1.

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Abstract

The invention belongs to the field of new energy technologies and photoelectrocatalytic materials, and particularly relates to an efficient preparation method of a methanol catalytic oxidation photoelectrocatalyst. PtNi alloy nanoparticles are prepared by adopting a simple and efficient method, a xenon lamp light source is introduced to construct a photoelectrocatalytic oxidation methanol fuel cell, the PtNi alloy nanoparticles and visible light show high interaction, the absorption in a low-wavelength region is increased, the light capacity of plasma resonance is enhanced, the current densityof catalytic oxidation methanol (MOR) is improved, the efficient PtNi alloy nanoparticle methanol photoelectrochemical oxidation catalyst is obtained, and a way is laid for widely using PtNi nanoparticle materials in the field of photoelectrocatalysis in the future.

Description

technical field [0001] The invention belongs to the fields of new energy technology and photoelectric catalysis materials, and in particular relates to a preparation method of an efficient methanol catalytic oxidation photoelectric catalyst. Background technique [0002] Direct methanol fuel cells (DMFCs) have many advantages in terms of catalytic activity and stability. In addition, some researchers have improved catalyst utilization by controlling and changing the size and morphology of noble metals or introducing other metals including nanoparticles, alloys, and core-shell structures. [0003] Although researchers have invested a lot of research in improving the catalytic activity of DMFC anodes using the above methods, few researchers have focused on the use of solar energy to improve the methanol oxidation reaction (MOR). With the depletion of fossil energy, it is very urgent to develop renewable energy and research on energy conversion technology, but solar energy is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89H01M14/00
CPCB01J23/892H01M14/005B01J35/33B01J35/39
Inventor 俞瀚张玉秀詹霞丹陈宇
Owner FUZHOU UNIV
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