Nickel-tin alloy nanohole array and preparation method thereof
A nanopore array, nickel-tin alloy technology, applied in hybrid/electric double-layer capacitor manufacturing, electrode manufacturing, hybrid capacitor electrodes, etc. The effect of ordered pore structure, simple preparation process and high structural stability
Inactive Publication Date: 2018-07-10
SHANGHAI UNIV
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The structures prepared by electrochemical deposition mainly include nanoparticles, nanowires and nanotubes, but these structures have some shortcomings and limitations in terms of performance and application.
For example, the size of nickel-tin nanoparticles is difficult to control, and the stability of the structure is poor; and during the preparation process of nickel-tin nanowires and nanotubes, due to the limitation of aspect ratio, when the ratio is higher than 5, it is easy to agglomerate phenomenon, which reduces the effective specific surface area and reduces the capacitance; on the other hand, the agglomeration will form a disordered pore structure, thereby increasing the resistance of electrolyte ion transport
In addition, due to the relatively poor mechanical stability of NiSn nanowires and nanotubes, the structure may collapse during charge and discharge, reducing the cycle stability.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0028] Example 1: In this example, based on the structural characteristics of the macroporous anodized aluminum template, a brand new nickel-tin alloy nanopore array was prepared through two-step structural replication.
[0029] First, 0.2 mm thick 99.999% aluminum foil was ultrasonically cleaned with acetone for 30 min, annealed at 450-550 °C under nitrogen protection, and then in a mixture of ethanol and perchloric acid (volume ratio 1:8) at a temperature of 0 °C, constant flow ( 750 mA) under the condition of electrochemical polishing, prepared spare aluminum foil. Then, through nanoimprint technology, pits were formed on the surface of the electrochemically polished aluminum foil, and the nanoimprinted aluminum foil was placed in a 0.3 M phosphoric acid solution and oxidized at a temperature of 15 °C for 30 min; with deionized water After repeated washing and drying, put in 5 wt% H 3 PO 4 A highly ordered macroporous alumina template with a pore diameter of 250 nm and a ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a nickel tin alloy nano-pore array and a preparation method thereof. According to the invention, the large-area ordered and controllable nickel tin alloy nano-pore array is obtained based on the structure characteristics of a large-pore anodic aluminum oxide template. The diameter of a nano-pore is 200-400 nm, and the length is 1-6 [mu]m. The nickel tin alloy nano-pore array prepared in the invention has a large specific surface area, a vertical pore channel structure, and high conductivity and structure stability. The method of the invention has the advantages that the structural parameters of the nickel tin alloy nano-pore array can be adjusted according to structure parameters of the template, the preparation of different metal nano-pore arrays can be realized, the process is simple, the cost is low, and the repeatability is good.
Description
technical field [0001] The invention relates to a novel nickel-tin alloy nanohole array and a preparation method thereof, in particular to a method for designing and constructing a brand-new nickel-tin alloy nanohole array based on the structural characteristics of an anodized aluminum template. Background technique [0002] With the rapid development of the global economy, human beings' excessive dependence and consumption of fossil energy have caused serious environmental problems and energy crises. In order to achieve efficient, pollution-free and sustainable energy development and utilization, research on energy storage and conversion devices has attracted extensive attention. At the same time, in order to meet the requirements of high-tech development such as large power sources, mobile communications, advanced weapons, space satellites, and underwater submarines, the development of new energy storage materials and energy storage devices with high specific capacity, hig...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/26H01G11/30H01G11/86H01M4/38H01M4/04H01M4/86H01M4/88
CPCH01G11/26H01G11/30H01G11/86H01M4/0452H01M4/387H01M4/8621H01M4/8853Y02E60/10Y02E60/50
Inventor 付群王欣赵华平明杰张成林雷勇吴明红
Owner SHANGHAI UNIV