Nickel cobalt phosphide-based nanoparticles and methods of making, and electrochemical systems and methods
| DWPI Title: Electrode for use in electrochemical device for water splitting, comprises agglomerated nanoparticles, and conductor, where nanoparticles consist essentially of metal, phosphorus and oxygen, and nanoparticles have phosphide core surrounded by oxide |
| Abstract: The present disclosure is directed to cobalt and nickel cobalt phosphide/phosphate electrocatalyst nanoparticles for catalyzing electrochemical reactions, such as water splitting. The nanoparticles are formed into electrodes that have bi-functional oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) capabilities. |
| Use: Electrode for use in electrochemical device for water splitting (all claimed). |
| Advantage: The electrode has effective, high surface area, high bifunctional activity based on earth abundant, low-cost materials for overall water splitting and other electrolyzer technologies. |
| Novelty: Electrode comprises agglomerated nanoparticles, and a conductor. The nanoparticles consist essentially of a metal, phosphorus and oxygen. The metal is a mixture of nickel and cobalt having a cobalt to nickel ratio in the range of 2:1 to 100:1. The cobalt to phosphorus ratio is between 0.8:1 and 1.2:1. The nanoparticles have a phosphide core surrounded by an oxide. The nanoparticles also have a phosphate phase. |
| Filed: 4/13/2018 |
| Application Number: US15952769A |
| Tech ID: SD 13867.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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