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Two-dimensional Ru doped Ni2P disc-shaped nanosheet and preparation method and application thereof

A nano-sheet and disc-shaped technology, applied in the field of nano-materials and its preparation and application, can solve the problem of limited oxygen evolution capacity, and achieve the effect of strong repeatability, low price and strong repeatability

Active Publication Date: 2017-08-25
江苏仕航电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Ni 2 P is mostly used for reduction reactions, and its ability to evolve oxygen is limited

Method used

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  • Two-dimensional Ru doped Ni2P disc-shaped nanosheet and preparation method and application thereof
  • Two-dimensional Ru doped Ni2P disc-shaped nanosheet and preparation method and application thereof
  • Two-dimensional Ru doped Ni2P disc-shaped nanosheet and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 2

[0038] Example 1 Two-dimensional Ru-doped Ni 2 Preparation of P disc-like nanoflakes

[0039] At room temperature, in a clean and dry 250mL three-necked flask, add 0.22g Ni(COOH) 2 and 0.10gRuCl 3 Solid, 5mL TOP, 1.5mL OA and 3mL DDA were ultrasonically dispersed to form a homogeneous solution, and the above solution was heated at 7°C min -1 The heating rate was heated to 300 ° C, kept for 60 min, cooled to room temperature naturally, and finally washed and separated by centrifugation with ethanol and n-heptane, and dried to obtain a two-dimensional Ru-doped Ni 2 P discoidal nanoflakes.

[0040] The two-dimensional Ru-doped Ni prepared by EDS, XRD, TEM, element mapping, HRTEM and line scan test 2 P discotic nanoflakes were characterized for their composition and structure (e.g. figure 1 ~6). figure 1 The O peaks come from the organic capping reagents and air adsorbed on the surface of the nanomaterials, C and Cu come from the carbon-supported copper network that supports...

Embodiment 2 2

[0041] Example 2 Two-dimensional Ru-doped Ni 2 Preparation of P disc-like nanoflakes

[0042] At room temperature, in a clean and dry 250mL three-necked flask, add 0.36g Ni(COOH) 2 and 0.10gRuCl 3 Solid, 5mL TOP, 1.5mL OA and 3mL DDA were ultrasonically dispersed to form a homogeneous solution, and the above solution was heated at 7°C min -1 The heating rate was heated to 300 ° C, kept for 60 min, cooled to room temperature naturally, and finally washed and separated by centrifugation with ethanol and n-heptane, and dried to obtain a two-dimensional Ru-doped Ni 2 P discoidal nanoflakes. TEM of the obtained nanoflakes Figure 7 shown.

Embodiment 3 2

[0043] Example 3 Two-dimensional Ru-doped Ni 2 Preparation of P disc-like nanoflakes

[0044] At room temperature, in a clean and dry 250mL three-necked flask, add 0.22g Ni(COOH) 2 and 0.20g Ru(acac) 2 Solid, 5mL TOP, 1.5mL OA and 3mL DDA were ultrasonically dispersed to form a homogeneous solution, and the above solution was heated at 7°C min -1 The heating rate was heated to 280 ° C, kept for 120 min, cooled to room temperature naturally, and finally washed and separated by centrifugation with ethanol and n-heptane, and dried to obtain a two-dimensional Ru doped Ni 2 P discoidal nanoflakes. TEM of the obtained nanoflakes Figure 8 shown.

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Abstract

The invention discloses a Ru doped Ni2P disc-shaped nanosheet and a preparation method thereof and application of the nanosheet serving as a difunctional electrocatalyst in a hydrogen evolution reaction (HER) and a oxygen evolution reaction (OER). The preparation method comprises the steps that nickel formate / nickel acetylacetonate, ruthenium trichloride / ruthenium acetylacetonate, tri-n-octylphosphine, dodecylamine and oleic acid are subjected to ultrasonic mixing, programmable heating is conducted to reach 280-300 DEG C for reacting, after heat preservation is conducted for 60-120 min, natural cooling is conducted to reach the room temperature, centrifugal separation and washing drying are conducted, and the Ru doped Ni2P disc-shaped nanosheet is obtained. According to the preparation method, under normal pressure, the Ru doped Ni2P disc-shaped nanosheet is synthesized through a one-pot method, the technology is simple, and the repeatability is high. The two-dimensional Ru doped Ni2P disc-shaped nanosheet shows the excellent electrocatalysis property, the nanosheet serving as the difunctional electrocatalyst can be applied to the HER and the OER simultaneously, and a broad application prospect is achieved in the field of renewable energy sources such as electrolytic water.

Description

technical field [0001] The present invention relates to a nano material and its preparation and application, in particular to a two-dimensional Ru-doped Ni 2 P discoidal nanoflakes, their preparation method and their application as bifunctional electrocatalysts in hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Background technique [0002] The global energy crisis and environmental pollution make scientists urgently need to find green, clean and renewable new energy systems to replace traditional fossil fuel systems. In the future energy application system, electrocatalytic hydrolysis to produce hydrogen and oxygen is considered to be an ideal source of renewable and clean energy, thus attracting widespread attention. [0003] The water electrolysis reaction consists of two half-reactions: the cathodic hydrogen evolution reaction and the anodic oxygen evolution reaction. At present, the best catalysts recognized by scientists to catalyze hydrogen ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185C25B1/04C25B11/06
CPCC25B1/04C25B11/04B01J27/1856B01J35/50B01J35/33B01J35/40Y02P20/133Y02E60/36
Inventor 包建春刘影陆徐云王伟赵书晨车志文
Owner 江苏仕航电气有限公司
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