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

Metal electrode catalyst and preparation method thereof

An electrode catalyst and metal electrode technology, applied in the energy field, can solve the problems of particle aggregation and growth, catalytic performance degradation, noble metal catalyst sintering, etc., and achieve the effects of saving costs, not easy to aggregate and grow, and maintaining catalytic activity and stability

Inactive Publication Date: 2009-09-02
中博源仪征新能源科技有限公司
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the electrode is operated for a long time, the noble metal catalyst will be sintered, and the particles will aggregate and grow, resulting in a decrease in catalytic performance.

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
  • Metal electrode catalyst and preparation method thereof
  • Metal electrode catalyst and preparation method thereof
  • Metal electrode catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment one: Pd 0.95 mn 0.05 Preparation and application of O-implanted YSZ cathode materials.

[0027] The first is the preparation of the porous layer: 4g YSZ, 2.2g ethylcellulose-terpineol-prepared binder and 0.1g fish oil dispersant are mixed and ground to make a slurry, and the slurry is applied to the surface by screen printing. YSZ has a dense electrolyte surface, and then a porous YSZ structure is obtained after sintering at 1200 °C for 1 h with a heating rate of 5 °C / min. figure 1 It is the SEM electron micrograph of the cathode porous layer.

[0028] Then, the PdCl 2 and MnCl 2 The mixed salt solution (adding a small amount of hydrochloric acid) is impregnated into the above-mentioned YSZ porous layer, and after roasting at 750°C, nano-Pd 0.95 mn 0.05 O alloy cathode catalyst. PD 0.95 mn 0.05 The amount of O alloy oxide in the cathode is 1~1.4mg / cm 2 . figure 2 Pd in ​​the porous YSZ cathode 0.95 mn 0.05 Scanning electron microscope (SEM) phot...

Embodiment 2

[0030] Embodiment 2: Pd 0.95 co 0.05 Preparation and application of O-implanted YSZ cathode materials.

[0031] The preparation of porous layer is the same as embodiment one, PdCl 2 and Co(NO 3 ) 2 The mixed salt solution (adding a small amount of hydrochloric acid) is impregnated into the YSZ porous layer in the same way as above, and after roasting at 750 ° C, the nanostructured Pd 0.95 co 0.05 O alloy oxide cathode catalyst. PD 0.95 co 0.05 The amount of O alloy oxide in the cathode is 1~1.4mg / cm 2 . Figure 8 for Pd 0.95 co 0.05 Impedance spectrum of +YSZ cathode measured at 750°C, the polarization impedance is 0.10Ωcm 2 . Figure 9 is the relationship between cathode polarization resistance and temperature, Pd 0.95 co 0.05 Cathodic oxygen reduction catalytic activation energy of alloy catalysis is 103kJ·mol -1 .

Embodiment 3

[0032] Embodiment three: Pd 0.80 co 0.20 Preparation and application of O-implanted YSZ cathode materials.

[0033] The preparation of porous layer is the same as embodiment one and two, PdCl 2 and Co(NO 3 ) 2 The mixed salt solution (adding a small amount of hydrochloric acid) was impregnated into the YSZ porous layer in the same way as above, and the nanostructured Pd was obtained after baking at 750 °C. 0.80 co 0.20 O alloy oxide cathode catalyst. PD 0.80 co 0.20 The amount of O alloy oxide in the cathode is 1~1.4mg / cm 2 . Figure 10 for Pd 0.80 co 0.20 The impedance spectrum of +YSZ cathode measured at 750℃, the polarization impedance is 0.105Ωcm 2 . Figure 11 for Pd 0.80 co 0.20 The relationship between +YSZ cathode polarization impedance and temperature, the catalytic activation energy of noble metal catalyzed cathode oxygen reduction is 104kJ mol -1 .

[0034] In the present invention, Pd 0.95 Ni 0.05 O, Pd 0.80 Ni 0.20 O, Pd 0.95 Cu 0.05 O, Pd ...

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

No PUM Login to View More

Abstract

The invention discloses a metal electrode catalyst with the chemical formula of MxA1-x, wherein the M adopts any one or the combination of Ag, Pt, Pd, Ru and Rh, the A adopts any one or the combination of Mn, Cr, Fe, Co, Ni, Cu, Nb, Mo, V, Ti, Zn, Zr, Ce, Y and Pb, and the x is more than or equal to 0.70 and is less than or equal to 0.99. The invention also provides a method for preparing the metal electrode catalyst, which comprises the following steps: the salt mixture solution containing the elements M and A is dipped and infused into the porous layer for drying and roasting until nanometer catalyst particles are formed in the porous layer. The prepared metal electrode catalyst is not easy to be sintered during use, can stably work for long term and is widely applied to various fuel cell electrodes.

Description

technical field [0001] The invention belongs to the field of energy, and in particular relates to a metal electrode catalyst and a preparation method thereof, and is especially suitable for a cathode of a solid oxide fuel cell. Background technique [0002] As a high-temperature fuel cell, solid oxide fuel cell (SOFC) can directly use hydrocarbons or internally reformed gas as fuel. The advantage of a wide range of options, in addition to pure hydrogen, CO, alcohol, hydrocarbons, gas, and even ammonia can be used as its fuel. In addition, SOFC has a higher power density. SOFC has broad application prospects in fixed power stations, mobile power sources, mobile transportation, and military fields. Its successful application is of great significance for alleviating my country's energy crisis, meeting people's continuous improvement requirements for power quantity and quality, protecting human living environment and ensuring my country's energy security. [0003] At present, ...

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): H01M4/90H01M4/88B01J23/656B01J23/89B01J37/02
CPCY02E60/50
Inventor 李箭梁凤丽陈静蒲健池波刘丽娜颜冬
Owner 中博源仪征新能源科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com