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Ni-Ag nano material for anode of oxide fuel cell and method for synthesizing the material

A technology of fuel cells and nanomaterials, applied in fuel cell parts, battery electrodes, chemical instruments and methods, etc., can solve the problems of complex preparation methods, excessive interface resistance, low electrode catalytic activity, etc., and achieve simple preparation technology , equipment requirements are not high, the effect of large application prospects

Inactive Publication Date: 2008-07-02
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, to manufacture a hydrogen fuel cell stack with a power of 100 kilowatts, it costs 200,000 to 500,000 US dollars, which obviously cannot meet the requirements of commercialization
The main reasons for the high price are: (1) In the preparation process of the fuel cell, a large amount of rare and precious metal platinum is used as the electrode material, so that the fuel cell is restricted by factors such as the resource and price of the catalyst platinum
(2) The preparation methods of key components, such as electrode materials, connecting materials and electrolyte materials are too complicated
The main reason is that the catalytic activity of the electrode is low, the contact area between the electrode and the electrolyte is small, and the interface resistance is too large

Method used

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  • Ni-Ag nano material for anode of oxide fuel cell and method for synthesizing the material
  • Ni-Ag nano material for anode of oxide fuel cell and method for synthesizing the material
  • Ni-Ag nano material for anode of oxide fuel cell and method for synthesizing the material

Examples

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example 1

[0019] Example 1: Preparation of metal Ag1Ni99 nanopowder

[0020] Take AgNO 3 , Ni(NO 3 ) 2 · 2(H 2 O) The molar ratio is 1:99 dissolved in ethanol, the cation concentration is 0.1mol / L, and NaOH is - : M + =10:1 (M is the number of moles of cations, OH - is the number of moles of NaOH) was added to the above solution, the resulting mixture was fully stirred, and moved into a 30mL reactor (the filling degree was 70%), reacted in an oven at 180°C for 16h, cooled to room temperature after the reaction, suction filtered with distilled water, and dried The drying temperature is 60°C, and the black powdery nanometer metal is obtained.

example 2

[0021] Example 2: Preparation of metal Ag70Ni30 nanometer powder.

[0022] Take AgNO 3 , Ni(NO 3 ) 2 · 2(H 2 O) Dissolve in ethanol at a molar ratio of 7:3, the cation concentration is 0.1mol / L, and NaOH is - : M + =10:1 (M is the number of moles of cations, OH - is the number of moles of NaOH) added to the above solution, the resulting mixture was fully stirred, and moved into a 30mL reactor (filling degree: 70%), reacted in an oven at 180°C for 48h, cooled to room temperature after the reaction, filtered with distilled water, and dried The drying temperature is 60°C, and the black powdery nanometer metal is obtained.

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Abstract

The invention relates to Ni-Ag nano material used by an anode of an oxide fuel cell and a synthesizing method thereof, which relates to a field of nano science and oxide fuel cell. Nickel nitrate and silver nitrate are dissolved in anhydrous ethanol solvent and is added with ethanol solution of sodium hydroxide after being fully stirred. The obtained mixture is filled separately in a reaction kettle and is heated up to 160-220 DEG C, and then the heat is preserved. After reaction, the mixture is cooled to the room temperature, washed and dried. The material has diameter of 10-30mm and a spherical shape. At the temperature of 800 DEG C, the highest open circuit voltage of a single cell can reach 0.997 V, and the power density can reach 52.34 mW / cm<2>.

Description

technical field [0001] The invention relates to the field of both nanoscience and oxide fuel cells, and is an important direction for the development of new clean energy, especially relates to an oxide fuel cell anode nanomaterial and a synthesis method thereof. Background technique [0002] A fuel cell is a power generation technology that converts chemical energy directly into electrical energy through an electrochemical reaction. Unlike traditional thermal power generation, fuel cells do not need to go through the conversion process from fuel chemical energy → thermal energy → mechanical energy → electrical energy, and the energy utilization rate can be as high as 75%. Moreover, the emission pollution of the fuel is extremely low, and it is called the green energy technology of the 21st century. [0003] Fuel cells will bring a new revolution to people's daily life in the future, from portable electronic devices to car power. But the high price has prevented fuel cells ...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M4/86H01M4/88C22C19/00C22C5/06C22C1/00B82B3/00B82B1/00B01J19/00
CPCY02E60/50
Inventor 李广社唐长林邱晓清李莉萍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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