Unlock instant, AI-driven research and patent intelligence for your innovation.

Nanometer array electrode modified by proton transmitters and preparation method and application of nanometer array electrode

A proton transfer and nano-array technology, which is applied in the field of proton transfer body-modified nano-array electrodes and its preparation, can solve the problems that the electrocatalytic activity of nanosheet arrays cannot meet the needs of electrocatalysis, and achieve simple preparation methods, accelerated reaction rates, The effect of improving performance

Pending Publication Date: 2022-07-08
SUN YAT SEN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome existing δ-MnO 2 The electrocatalytic activity of nanosheet arrays cannot meet the defects and deficiencies of the growing electrocatalytic needs, and provide a proton transfer body-modified nanoarray electrode that can achieve high-efficiency electrocatalysis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nanometer array electrode modified by proton transmitters and preparation method and application of nanometer array electrode
  • Nanometer array electrode modified by proton transmitters and preparation method and application of nanometer array electrode
  • Nanometer array electrode modified by proton transmitters and preparation method and application of nanometer array electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 Zoledronic acid modified δ-MnO 2 Nanoarray electrodes (SS / δ-MnO 2 @ZA)

[0038] The zoledronic acid modified δ-MnO 2 The preparation method of nano-array electrode includes the following steps:

[0039] S1, take 2.370g (15mmol) potassium permanganate (KMnO 4 ) was dissolved in 150 mL of ultrapure water to form a homogeneous solution, the washed stainless steel (SS) was placed in it, and the hydrothermal reaction was carried out in a blast drying oven at 120 °C for 24 h to obtain δ-MnO grown on SS in situ. 2 Nanoarray electrodes (SS / δ-MnO 2 );

[0040] S2, the SS / δ-MnO obtained in step S1 2 It was placed in the prepared zoledronic acid (ZA)-ethanol solution (volume ratio of 1:80), soaked at 20 °C for 10 h, and then rinsed with ethanol for 3 times to obtain zoledronic acid-modified δ-MnO 2 Nanoarray electrodes (SS / δ-MnO 2 @ZA).

[0041] Characterization of materials:

[0042] The product was identified by X-ray powder diffractometer and its crystal pha...

Embodiment 2

[0043] Example 2 Gallic acid modified δ-MnO 2 Nanoarray electrodes (CoF / δ-MnO 2 @GA)

[0044] The gallic acid modified δ-MnO 2 The preparation method of nano-array electrode includes the following steps:

[0045] S1, take 3.792g (24mmol) potassium permanganate (KMnO 4 ) was dissolved in 80 mL of ultrapure water, fully stirred until completely dissolved to form a homogeneous solution, the washed cobalt foam (CoF) was placed in it, and the hydrothermal reaction was carried out in a blast drying oven at 150 ° C for 8 h to obtain a cobalt on CoF. In situ grown δ-MnO 2 Nanoarray electrodes (CoF / δ-MnO 2 );

[0046] S2, the CoF / δ-MnO obtained in step S1 2 It was placed in the prepared gallic acid (GA)-methanol solution (volume ratio of 1:20), soaked at 30 °C for 2 hours, and then rinsed with methanol for 3 times to obtain gallic acid-modified δ-MnO 2 Nanoarray electrodes (CoF / δ-MnO 2 @GA).

[0047] Characterization of materials:

[0048] The morphology of the obtained mate...

Embodiment 3

[0049] Example 3 Arginine-modified δ-MnO 2 Nanoarray electrodes (NCP@δ-MnO 2 @Arg)

[0050] The arginine-modified δ-MnO 2 The preparation method of nano-array electrode includes the following steps:

[0051] S1, take 0.395g (2.5mmol) potassium permanganate (KMnO 4 ) was dissolved in 500 mL of ultrapure water, fully stirred until completely dissolved to form a homogeneous solution, the washed nickel-cobalt alloy plate (NCP) was placed in it, and the hydrothermal reaction was carried out in a blast drying oven at 200 ° C for 5 h to obtain the In situ grown δ-MnO on NCP 2 Nanoarray electrodes (NCP / δ-MnO 2 );

[0052] S2, the NCP / δ-MnO obtained in step S1 2 Placed in the prepared arginine (Arg)-isopropanol solution (20g / L), soaked at 45°C for 5 hours, and then rinsed with isopropanol 3 times to obtain arginine-modified δ-MnO 2 Nanoarray electrodes (NCP / δ-MnO 2 @Arg).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Horizontal sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of electro-catalysis electrode materials, and particularly relates to a proton transporter modified nano array electrode and a preparation method and application thereof. The nano array electrode modified by the proton transporter is obtained by growing delta-MnO2 on a current collector and then coating the surface of the current collector with the proton transporter, and functional groups such as carboxyl, imidazolyl and amino in the proton transporter can effectively assist in the transfer of protons in a catalytic reaction process. The performance of the delta-MnO2 nano array electrode in an electro-catalysis proton coupling electron transfer reaction can be remarkably improved, and the reaction rate is increased. And the preparation method is simple, can be used for large-scale industrial production, and is very suitable for various proton coupling electron transfer reactions such as oxygen evolution reaction, hydrogen evolution reaction, oxygen reduction reaction, hydroxide reaction, urea oxidation reaction and the like.

Description

technical field [0001] The invention belongs to the technical field of electrocatalytic electrode materials. More specifically, it relates to a nano-array electrode modified by a proton carrier and its preparation method and application. Background technique [0002] In recent years, in response to the increasingly serious energy crisis and environmental problems, researchers have developed a large number of green and sustainable new energy storage / conversion systems. In the above systems, proton-coupled electron transfer (PCET) processes are involved in many core redox mechanisms, such as oxygen evolution reaction (OER), hydrogen evolution reaction (HER), oxygen reduction reaction (ORR), and hydrogen oxidation reaction (HOR). , urea oxidation reaction (UOR), ammonia oxidation reaction (AOR), carbon dioxide reduction reaction (CO 2 RR), nitrogen reduction reaction (NRR), etc. In order to promote the practical application of new energy storage / conversion systems, the key i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25B11/095C25B11/054B82Y30/00B82Y40/00
CPCC25B11/095C25B11/054B82Y30/00B82Y40/00Y02E60/50
Inventor 李萍李吉鑫黄钰淇黄蕖骅李文琴赵世恩
Owner SUN YAT SEN UNIV