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TaC-TaN-Ta2O5 three-phase compound powder as well as preparation method and application thereof

A technology of tac-tan-ta2o5 and composites, which is applied in the field of TaC-TaN-Ta2O5 three-phase composite powder and its preparation, can solve the problems of high price and scarcity of Pt resources, and achieve low cost, convenient preparation process, The effect of simple preparation method

Active Publication Date: 2020-04-10
INNER MONGOLIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bottleneck of large-scale commercial direct alcohol fuel cells is that the alcohol oxidation at the anode is still Pt-based materials with good electrocatalytic oxidation performance.
However, Pt resources in nature are scarce and expensive

Method used

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  • TaC-TaN-Ta2O5 three-phase compound powder as well as preparation method and application thereof
  • TaC-TaN-Ta2O5 three-phase compound powder as well as preparation method and application thereof
  • TaC-TaN-Ta2O5 three-phase compound powder as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] S1. Accurately weigh 0.3 g of tantalum chloride and 1.2 g of urea, disperse them in 5-6 ml of absolute ethanol solvent, and stir magnetically for 30 minutes to obtain a uniform white suspension;

[0046] S2. Put the white suspension in a tube furnace and calcinate it at 1100°C in an Ar atmosphere for 6 hours with a heating rate of 5°C / min. After the furnace is naturally cooled to room temperature, grind the sample to obtain TaC-TaN -Ta 2 o 5 Three-phase composite powder.

Embodiment 2

[0047] Embodiment 2: As described in Example 1, the difference is that in S1., the quality of urea is 1.5 grams, and the composite powder obtained.

Embodiment 3

[0048] Embodiment 3: As described in Example 1, the difference is that in S1., the quality of urea is 1.8 grams, and the composite powder obtained.

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Abstract

The invention discloses TaC-TaN-Ta2O5 three-phase compound powder as well as a preparation method and application thereof. Tantalum chloride and urea are used as raw materials, and the preparation method comprises the following steps: S1, mixing; S2, calcining; specifically, S1, mixing, specifically, mixing tantalum chloride and urea according to the mass ratio of 1:(4-11) but not including 1:8 and then dispersed in an ethanol solvent, and obtaining uniform turbid liquid through stirring; S2, calcining, specifically, putting the turbid liquid obtained in S1 into a tubular furnace, and heatingand calcining for 6 hours under the protection of argon, so as to obtain TaC-TaN-Ta2O5 three-phase compound powder. The process is simple, the preparation process is convenient, tantalum chloride andurea are used as raw materials; by controlling the mass ratio of the two components and dissolving the two components in an ethanol solution to form a uniform suspension and calcining then, the tantalum carbide-tantalum nitride-tantalum oxide (TaC-TaN-Ta2O5) three-phase compound is obtained, and the prepared tantalum carbide-tantalum nitride-tantalum oxide (TaC-TaN-Ta2O5) three-phase compound hasa potential application prospect in a fuel cell.

Description

Technical field: [0001] The present invention relates to a kind of powder and its preparation method and application, especially to a kind of TaC-TaN-Ta 2 o 5 Three-phase composite powder and its preparation method and application. Background technique: [0002] Today, energy and environmental issues have become one of the most critical issues in the world. With the development of human economy, the demand for fossil energy is increasing day by day, but the reserves of fossil energy are limited. In addition, fossil fuels cause environmental pollution and affect human health. Therefore, seeking sustainable and clean energy has become a major issue that countries around the world urgently need to solve. [0003] A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxidant into electrical energy through an electrochemical reaction. Because the fuel cell directly converts the chemical energy of the fuel into electrical energy withou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M4/90
CPCH01M4/8825H01M4/9016H01M4/90Y02E60/50
Inventor 赵彦宏李乔波柴占丽王晓晶
Owner INNER MONGOLIA UNIVERSITY
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