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Tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in confinement manner, and preparation method and application thereof

A carbon nano-film, nano-film technology, applied to tantalum nitride carbon nano-film integrated electrode and preparation method thereof, and in the fields of electrochemistry, new material preparation and electrochemistry, can solve problems such as lack of good electrocatalytic performance, and achieve The effect of increasing active specific surface area, long cycle life and high catalytic performance

Active Publication Date: 2020-04-10
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ela Nurlaela et al prepared supported CoO by chemical vapor deposition X Tantalum nitride nanoparticles (Chem. Mater.2015, 27, 5685−5694); Wang et al. prepared tantalum nitride nanofilms by chemical vapor deposition and nitriding of anodized tantalum oxide (Chem. Commun., 2017, 53, 11763 ); the prepared tantalum nitride is a smooth columnar nano-film array used in photocatalysis but does not have good electrocatalytic performance

Method used

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  • Tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in confinement manner, and preparation method and application thereof
  • Tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in confinement manner, and preparation method and application thereof
  • Tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in confinement manner, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Anode treatment: Ultrasonic cleaning of 1 square centimeter tantalum foil with acetone and ethanol, respectively, to remove organic matter on the surface, and blow dry with nitrogen gas; a circular tantalum foil with an exposed surface diameter of 0.5 square centimeters and an area of ​​0.19625 square centimeters was used as Anode, 0.27mol / L NH 4 F and 15.89 mol / L H 2 SO 4 Electrolyte, platinum sheet as cathode, anodized at 60 V for 15 min. After the reaction, the sample was rinsed with flowing distilled water and dried with nitrogen to obtain porous anodized tantalum oxide;

[0034] (2) Confinement growth of Co(tzbc) in the channels of tantalum oxide nanoarrays 2 (H 2O) 4 Complex: 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.038 g, 0.2 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.119 g, 0.4 mmol) was dissolved in absolute ethanol (4 ml) and H 2 O (2.5 ml) in a mixed solvent, put the magneton to sink to the bottom of the solvent, put the porous tantalum oxide obtain...

Embodiment 2

[0038] (1) Anode treatment: Ultrasonic cleaning of 1 square centimeter tantalum foil with acetone and ethanol, respectively, to remove organic matter on the surface, and blow dry with nitrogen gas; a circular tantalum foil with an exposed surface diameter of 0.5 square centimeters and an area of ​​0.19625 square centimeters was used as Anode, 0.27mol / L NH 4 F and 15.89 mol / L H 2 SO 4 Electrolyte, platinum sheet as cathode, anodized at 60 V for 15 min. After the reaction, the sample was rinsed with flowing distilled water and dried with nitrogen to obtain porous anodized tantalum oxide;

[0039] (2) Confinement growth of Co(tzbc) in the channels of tantalum oxide nanoarrays 2 (H 2 O) 4 Complex: 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.038 g, 0.2 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.119 g, 0.4 mmol) was dissolved in absolute ethanol (4 ml) and H 2 O (2.5 ml) in a mixed solvent, put the magneton to sink to the bottom of the solvent, put the porous tantalum oxide obtai...

Embodiment 3

[0043] (1) Anode treatment: Ultrasonic cleaning of 1 square centimeter tantalum foil with acetone and ethanol, respectively, to remove organic matter on the surface, and blow dry with nitrogen gas; a circular tantalum foil with an exposed surface diameter of 0.5 square centimeters and an area of ​​0.19625 square centimeters was used as Anode, 0.27mol / L NH 4 F and 15.89 mol / L H 2 SO 4 Electrolyte with platinum sheet as cathode, anodized at 60 V for 15 min. After the reaction, the sample was rinsed with flowing distilled water and dried with nitrogen to obtain porous anodized tantalum oxide;

[0044] (2) Confinement growth of Co(tzbc) in the channels of tantalum oxide nanoarrays 2 (H 2 O) 4 Complex: 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.038 g, 0.2 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.119 g, 0.4 mmol) was dissolved in absolute ethanol (4 ml) and H 2 O (2.5 ml) in a mixed solvent, put the magneton to sink to the bottom of the solvent, put the porous tantalum oxide o...

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Abstract

The invention discloses a tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in a confinement manner, and a preparation method and an application thereof. The preparation method comprises the following steps: synthesizing a tantalum oxide nano-film taken as a carrier, loading a Co(tzbc)2(H2O)4 complex on the carrier through a hydrothermal technology, carryingout a nitridation reaction on the synthesized composite material through a chemical vapor deposition (CVD) technology, and naturally cooling the obtained reaction product to room temperature to prepare the tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in the confinement manner. The preparation process is simple, and the preparation of the tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in the confinement manner can be completed through a CVD furnace without a special pressure environment. The prepared tantalum nitride carbon nano-film integrated electrode with cobalt nano-particles growing in the confinement manner has electro-catalytic hydrogen evolution and oxygen evolution properties at the same time.

Description

technical field [0001] The invention relates to a tantalum nitride carbon nano-film integrated electrode with limited growth of cobalt nanoparticles, a preparation method thereof and an application in the field of electrochemistry, belonging to the fields of new material preparation and electrochemistry. Background technique [0002] Energy is the foundation of human survival and development, and directly affects the economic lifeline of each country and the development direction of all mankind. Currently, the growing conflict between increasing energy demand and environmental degradation caused by the burning of fossil fuels has sparked enormous interest in finding efficient, clean and renewable alternative energy sources. [0003] As an abundant carbon-free fuel, hydrogen has an ultra-high calorific value and zero carbon dioxide emissions, and is considered to be an ideal choice to replace carbon-based fuels in the future. Hydrogen energy is an efficient clean energy sour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/06C25D11/26C23C16/455C23C16/34B01J27/24
CPCC25B1/04C25D11/26C23C16/34C23C16/455B01J27/24C25B11/091B01J35/39Y02E60/36
Inventor 范修军彭赛松张献明
Owner SHANXI UNIV
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