Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of forming a porous nickel coating, and related articles and compositions

Inactive Publication Date: 2007-12-06
GENERAL ELECTRIC CO
View PDF11 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The present invention meets these and other needs by providing an efficient method for the production of a high performance porous nickel electrocatalyst.

Problems solved by technology

However, the high cost of these materials encourages researchers to find alternative electrocatalysts with efficiency comparable to the efficiency of platinum-based electrocatalysts.
The only drawback of hydrogen-based fuels is that hydrogen is still more expensive than other energy sources, such as coal, oil and natural gas.
Although the art has suggested various non-platinum based electrocatalysts, most of them suffer from insufficiently low cell voltage and mechanical weakness.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of forming a porous nickel coating, and related articles and compositions
  • Method of forming a porous nickel coating, and related articles and compositions
  • Method of forming a porous nickel coating, and related articles and compositions

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0053]Sample Preparation: Porous Ni-Based Coatings by Twin Arc Spray Process

[0054]A wire arc coating of Ni based alloys on Microcell cathodes cut from stainless steel 304 sheet with thickness of about 1.6 millimeters was formed, using a SmartArc-350PP Electric Arc Spray System manufactured by Sulzer Metco. Zinc was co-sprayed with Ni and Ni-based alloys by feeding two wires made of these materials into the spray system. For comparison, a set of samples was prepared by co-spraying nickel along with aluminum. The coating thickness was about 114 microns to about 228 microns after 3 passes.

[0055]Zinc Leaching:

[0056]To determine optimal conditions for leaching, different procedures were tested: hot leaching included leaching at 80° C., and cold leaching included leaching at 25° C. Leaching outside the cell included leaching overnight in a beaker with 30% KOH, while cold in-cell leaching included leaching overnight at 25° C. in an assembled cell, and hot in-cell leaching, included leachin...

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

PropertyMeasurementUnit
Fractionaaaaaaaaaa
Percent by massaaaaaaaaaa
Percent by massaaaaaaaaaa
Login to View More

Abstract

A method of forming a porous nickel coating is provided. The method includes the steps of: depositing a coating onto a substrate by melting and atomizing two consumable electrode wires of a selected composition in a wire-arc spray device, so as to form a molten, atomized material, and directing the material to the substrate to form a coating deposit; the selected composition including nickel and a sacrificial metal; and then dissolving at least a portion of the sacrificial metal from the coating deposit by applying a positive potential in an alkaline electrolyte, so as to obtain a porous nickel coating. An electrolytic cell that includes a porous nickel coating is also described.

Description

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT[0001]This invention was made with Government support under contract number DE-FC36-04GO14223 awarded by DOE. The Government has certain rights in the invention.BACKGROUND OF THE INVENTION[0002]The invention is related to a method of forming a nickel coating. More particularly, the invention is related to a wire-arc spray coating method of making a porous nickel coating, e.g., a coating which comprises Raney nickel. The invention is also related to an electrode, comprising a porous nickel coating.[0003]Electrocatalysts are extensively used in alternative fuels production (e.g., hydrogen): production of crude oil and gas from non-conventional sources such as tar sands and heavy oil reservoirs: synfuels production (e.g., coal liquefaction / gasification, shale oil). Electrocatalysts are also useful in oil recycling, and other emerging energy technologies such as fuel cells and photovoltaic cells. They are also employed in var...

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
no application Login to View More
IPC IPC(8): C25F1/00C25B1/02
CPCC25B1/02C25B11/035C25F3/14Y02E60/50H01M4/98H01M8/1011H01M2008/1095H01M4/8885C25B11/031
Inventor ROSENZWEIG, LARRY STEVENSOLOVEICHIK, GRIGORII LEVZAPPI, GUILLERMO DANIEL
Owner GENERAL ELECTRIC CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com