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Synthetic method of cobaltosic oxide-loaded copper oxide nanorod

A technology of copper oxide nanorods and cobalt tetroxide, which is applied in cobalt oxide/cobalt hydroxide, copper oxide/copper hydroxide, nanotechnology for materials and surface science, etc., can solve the problem of high overpotential and high working potential of hydrogen evolution reaction , high specific capacity and other issues, to achieve the effect of improved catalytic performance, short time consumption and shortened reaction time

Inactive Publication Date: 2017-10-10
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, single-phase structure CuO still has certain limitations, such as: (1) The overpotential of hydrogen evolution reaction on the surface of CuO is high, which is a common problem of semiconductor oxides
(2) CuO is unstable at the cathode potential, and the hydrogen evolution reaction photocurrent of CuO photocathode decays rapidly with time
[0005] co 3 o 4 The crystallization is cubic, with normal AB 2 o 4 Spinel structure is an important semiconductor functional material with high specific capacity and high density, and can withstand high power charge and discharge. It has stable chemical properties and specific magnetic properties, so it is used in super Capacitors, catalysts, gas sensors, lithium-ion batteries and many other fields have a wide range of applications, the main disadvantage is the high working potential

Method used

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  • Synthetic method of cobaltosic oxide-loaded copper oxide nanorod
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Examples

Experimental program
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Effect test

Embodiment 1

[0023] Soak the surface of the pure copper mesh with hydrochloric acid or ethanol and ultrasonically clean it with deionized water, dry it for later use; place the pure copper mesh in a ceramic ark and heat it in a box-type electric furnace at a heating temperature of 500°C for 5 hours. CuO nanorods grown on copper grids were prepared after cooling in the furnace.

[0024] The prepared copper mesh grown with CuO nanorods was placed in Co(NO 3 ) 2 , NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) in the mixed solution of water and ethylene glycol, carry out hydrothermal reaction in the reactor. Among them, water, ethylene glycol, Co(NO 3 ) 2 , NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) is 8.4:2.7:0.35:0.5:0.2:1.5, the filling ratio of the mixed solution to the reactor is 2:1; the heating temperature is 110°C; the heating time is 5h.

[0025] The above reaction product was washed with deio...

Embodiment 2

[0027] Soak the surface of the pure copper mesh with hydrochloric acid or ethanol and ultrasonically clean it with deionized water, dry it for later use; place the pure copper mesh in a ceramic ark and heat it in a box-type electric furnace at a heating temperature of 500°C for 5 hours. CuO nanorods grown on copper grids were prepared after cooling in the furnace.

[0028] The prepared copper mesh grown with CuO nanorods was placed in Co(NO 3 ) 2 , NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) in the mixed solution of water and ethylene glycol, carry out hydrothermal reaction in the reactor. Among them, water, ethylene glycol, Co(NO 3 ) 2, NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) is 8.4:2.7:0.3:0.5:0.1:1.3, the filling ratio of the mixed solution to the reactor is 2:1; the heating temperature is 110°C; the heating time is 6h.

[0029] The above reaction product was washed with deioni...

Embodiment 3

[0031] Soak the surface of the pure copper mesh with hydrochloric acid or ethanol and ultrasonically clean it with deionized water, dry it for later use; place the pure copper mesh in a ceramic ark and heat it in a box-type electric furnace at a heating temperature of 500°C for 5 hours. CuO nanorods grown on copper grids were prepared after cooling in the furnace.

[0032] The prepared copper mesh grown with CuO nanorods was placed in Co(NO 3 ) 2 , NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) in the mixed solution of water and ethylene glycol, carry out hydrothermal reaction in the reactor. Among them, water, ethylene glycol, Co(NO 3 ) 2 , NH 4 F, potassium sodium tartrate (C 4 h 4 QUR 6 -4H 2 O) and urea (CO(NH 2 ) 2 ) is 8.4:2.7:0.4:0.5:0.3:1.4, the filling ratio of the mixed solution to the reactor is 2:1; the heating temperature is 100°C; the heating time is 5h.

[0033] The above reaction product was washed with deion...

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Abstract

The invention discloses a synthetic method of a cobaltosic oxide-loaded copper oxide nanorod. The synthetic method comprises the steps of preparing a copper oxide nanorod by virtue of a thermal growth method, loading the copper oxide nanorod with cobaltosic oxide by virtue of a hydrothermal chemical method until the surface of the copper oxide nanorod is uniformly coated with cobaltosic oxide, wherein the diameter of the copper oxide nanorod is 150nm-250nm, and the diameter of cobaltosic oxide is 10nm-15nm. The synthetic method is efficient and economic and has the advantages of the low implementation cost, simplicity and convenience in operation, low pollution, high efficiency and economy; and meanwhile, the material prepared by virtue of the synthetic method is stable in structure and has cathodic electro-catalytic property.

Description

[0001] The application of the present invention is a divisional application of the parent application "a copper oxide nanorod loaded with tricobalt tetroxide and its synthesis method". The application number of the parent application is 2015101633241, and the application date is April 8, 2015. technical field [0002] The invention relates to a novel nanometer material and a synthesis method thereof, in particular to a copper oxide nanorod loaded with tricobalt tetroxide and a synthesis method thereof. Background technique [0003] The conversion of solar energy into chemical fuels is a clean and sustainable solution to today's growing energy problems. Solar-driven water splitting based on semiconductor materials is an artificial photosynthetic process that stores solar energy in the product H 2 and O 2 in the chemical bond. Photoelectrochemical (PEC) cells are widely used in solar water electrolysis devices. Because H 2 It is a clean energy that only produces water duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02C01G51/04C25B11/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G3/02C01G51/04C01P2002/72C01P2004/03C01P2004/04C01P2004/16C01P2004/82C25B11/04
Inventor 梁砚琴陈瑞雪崔振铎杨贤金朱胜利李朝阳
Owner TIANJIN UNIV
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