Platinum electroplating liquid of potassium platinum (IV) chloride and electroplating method of platinum electroplating liquid

A technology of potassium hexachloroplatinate and electroplating solution, which is applied in the field of electroplating platinum, can solve problems such as poor performance of the plating solution, low current efficiency of the plating solution, and poor quality of the coating, and achieve high cathode current efficiency, good coating quality, and good plating quality. Liquid performance excellent effect

Inactive Publication Date: 2015-12-02
WUXI QINGYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the process is relatively simple, the current efficiency of the plating solution is low, the performance of the plating solution is poor, and the quality of the coating is not good.

Method used

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  • Platinum electroplating liquid of potassium platinum (IV) chloride and electroplating method of platinum electroplating liquid
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  • Platinum electroplating liquid of potassium platinum (IV) chloride and electroplating method of platinum electroplating liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formulation of the electroplating solution is as follows:

[0027]

[0028] Plating process conditions: the pulse width of single pulse square wave current is 0.5ms, the duty cycle is 30%, and the average current density is 2A / dm 2 ; The temperature is 80°C, and the electroplating time is 40min.

Embodiment 2

[0030] The formulation of the electroplating solution is as follows:

[0031]

[0032] Plating process conditions: the pulse width of single pulse square wave current is 0.6ms, the duty cycle is 25%, and the average current density is 2.5A / dm 2 ; The temperature is 80°C, and the electroplating time is 35min.

Embodiment 3

[0034] The formulation of the electroplating solution is as follows:

[0035]

[0036]

[0037] Plating process conditions: the pulse width of single pulse square wave current is 0.8ms, the duty cycle is 20%, and the average current density is 3A / dm 2 ; The temperature is 80°C, and the electroplating time is 20min.

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Abstract

The invention discloses a platinum electroplating liquid of potassium platinum (IV) chloride and an electroplating method of the platinum electroplating liquid. Each liter of the platinum electroplating liquid comprises the following materials: potassium platinum (IV) chloride containing 0.6 to 1 g of platinum, water-soluble phosphate containing 100 to 140 g of phosphate radicals, 4-8 mg of hexadecyl trimethyl ammonium chloride, and hydrochloric acid capable of adjusting the pH value of the electroplating liquid to be 1 to 2. As potassium platinum (IV) chloride is taken as a main platinum salt, phosphate is taken as a brightening agent salt, hexadecyl trimethyl ammonium chloride is taken as an additive, and platinum hydrochloric acid is used for adjusting the pH of the electroplating liquid to be acid, the platinum electroplating liquid is relatively high in dispersancy and deep plating capability, high in cathode current efficiency, and excellent in performance. A plating obtained through electroplating of the platinum electroplating liquid under an alkali condition is low in porosity, high in lightness, and favorable in plating quality.

Description

technical field [0001] The invention relates to the technical field of platinum electroplating, in particular to a potassium hexachloroplatinate-based platinum electroplating solution and an electroplating method thereof. Background technique [0002] Platinum (Pt) has superior properties and is widely used. In the jewelry industry, it is mainly used as decorations and handicrafts. In the chemical industry, it is used to manufacture advanced chemical vessels, platinum crucibles, electrodes and catalysts to accelerate chemical reactions. Platinum-iridium alloy is the material from which fountain pen nibs are made. Especially in the automobile industry, platinum plays an irreplaceable role in exhaust gas treatment, and its consumption accounts for almost half of the platinum industry's consumption. because. However, platinum resources are scarce and expensive, which restricts the application of platinum electrodes. Therefore, platinum-plated materials are used to replace p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/50C25D5/20C25D5/18
Inventor 唐靖岚
Owner WUXI QINGYANG MACHINERY MFG
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