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Application of nickel-molybdenum carbide in production of anode of microbial fuel cell

A fuel cell, nickel-molybdenum carbide technology, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems of strict conditions and complex preparation methods, and achieve the effects of short operation time, simple production process and strong stability

Inactive Publication Date: 2010-06-23
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation methods are complicated and the conditions are strict

Method used

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  • Application of nickel-molybdenum carbide in production of anode of microbial fuel cell
  • Application of nickel-molybdenum carbide in production of anode of microbial fuel cell
  • Application of nickel-molybdenum carbide in production of anode of microbial fuel cell

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1: Catalyst Preparation

[0039] Nickel Molybdenum Carbide

[0040] 1. Mix molybdic acid and NiCl 2 ·6H 2 O (molar ratio Ni:Mo=1:3) was dissolved in ethylene glycol and stirred vigorously at 60°C until NiCl 2 ·6H 2 O is completely dissolved. Then, starch was added to the mixture at a molar ratio of Mo:C=1:3.5. When the starch is heated and dissolved, the solvent is stirred and concentrated into a viscous solvent at about 130°C, and then the viscous solvent is heated to 190°C to form matrix fragments.

[0041]2. The fragments were placed in a graphite boat and annealed in an alumina tube furnace at a temperature of 900°C, under the protection of Ar, and the annealing time was 2 hours. Cool to room temperature to obtain dark blue powder, which is nickel molybdenum carbide.

[0042] The comparison of the obtained nickel-molybdenum carbide sample (S) XRD pattern and the XRD standard collection of patterns (a) of molybdenum carbide is as follows figure 1 shown. ...

Embodiment 2

[0053] Step 1: Catalyst Preparation

[0054] 1. Mix molybdic acid and NiCl 2 ·6H 2 O (Ni:Mo=1:3) was dissolved in ethylene glycol and stirred vigorously at 60°C until NiCl 2 ·6H 2 O is completely dissolved. Then, glucose was added to the mixture at a molar ratio of Mo:C=1:2 to prepare precursor G. After the glucose is heated and dissolved, the solvent is stirred and concentrated into a viscous solvent at about 130°C, and then the viscous solvent is heated to 190°C to form matrix fragments.

[0055] 2. The fragments were placed in a graphite boat and annealed in an alumina tube furnace at a temperature of 900°C, under the protection of Ar, and the annealing time was 2 hours. Cool to room temperature to obtain dark blue powder. The comparison of the XRD standard collection of illustrative plates (a) of the nickel-molybdenum carbide sample (G)XRD pattern and molybdenum carbide obtained is as follows figure 2 shown.

[0056] Step 2: Physical Characterization

[0057] Ste...

Embodiment 3

[0068] Step 1: Catalyst Preparation

[0069] 1. Mix molybdic acid and NiCl 2 ·6H 2 O (Ni:Mo=1:1) was dissolved in ethylene glycol and stirred vigorously at 80°C until NiCl 2 ·6H 2 O is completely dissolved. Then, sucrose was added to the mixture at a molar ratio of Mo:C=1:4 to prepare the precursor s. When the sucrose is heated and dissolved, the solvent is stirred and concentrated into a viscous solvent at about 100°C, and then the viscous solvent is heated to 150°C to form matrix fragments.

[0070] 2. The fragments are placed in a graphite boat and annealed in an alumina tube furnace at a temperature of 800°C, under the protection of Ar, and the annealing time is 4h. Cool to room temperature to obtain dark blue powder.

[0071] Step 2: Physical Characterization

[0072] Step is as embodiment 1

[0073] Step 3: Preparation of the base electrode

[0074] Step is as embodiment 1

[0075] Step 4: Preparation of Pt / C cathode

[0076] Step is as embodiment 1

[0077] ...

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Abstract

The invention discloses application of nickel-molybdenum carbide in the production of the anode of a microbial fuel cell. Compared with molybdenum carbide, due to the doped nickel, the crystal formation of the nickel-molybdenum carbide is more complete, the degree of crystallinity is improved, and the specific surface area is enlarged. When used as an anode catalyst, the nickel-molybdenum carbide can easily catalyze the oxidation of products produced in microbial fermentation, and can greatly improve the electric energy output of a microbial fuel cell. Compared with the conventional Pt catalyst, the nickel-molybdenum carbide has the advantages of low price and wide scope of sources. The microbial fuel cell assembled with the nickel-molybdenum carbide as the anode catalyst can operate stably for a long term, and has high power output.

Description

technical field [0001] The invention belongs to the field of microbial fuel cell manufacture, and in particular relates to using nickel and molybdenum carbide to prepare the anode of the microbial fuel cell, and further using the anode to prepare the microbial fuel cell. Background technique [0002] In recent years, a new technology——microbial fuel cells (MFCs) has been booming. It is the product of the combination of microbial technology and battery technology. The power generation device has dual functions of power generation and waste disposal. In addition to high-concentration organic wastewater, MFCs can also use domestic sewage, human and animal manure and other pollutants as fuel to generate electricity. Therefore, it is an advanced biomass energy utilization technology with great development potential, and it is expected to become a pillar technology for organic waste treatment in the future. The basic principle of MFC is: organic matter is oxidized by microorgani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88H01M4/90H01M8/16
CPCY02E60/527Y02E60/50Y02P70/50
Inventor 曾丽珍赵少飞李伟善
Owner SOUTH CHINA NORMAL UNIVERSITY
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