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Methods for making bifunctional porous non-noble metal phosphide catalyst for overall water splitting, electrodes for overall water splitting, and methods for electrocatalytic water splitting

Patent ·
OSTI ID:1925122
; ; ;
A method of manufacturing a bifunctional electrocatalyst for overall water splitting comprising oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) by growing electrocatalyst comprising primarily metallic phosphides on a three-dimensional substrate by: immersing the substrate in an iron nitrate solution to form a once disposed substrate; subjecting the once disposed substrate to thermal phosphidation with phosphorus powder under inert gas to grow metal phosphides thereupon and form a once subjected substrate; cooling the once subjected substrate to form a cooled, once subjected substrate; immersing the cooled, once subjected substrate in an iron nitrate solution to form a twice disposed substrate; and subjecting the twice disposed substrate to thermal phosphidation with phosphorus powder under inert gas to provide an electrode comprising the bifunctional electrocatalyst on the three-dimensional substrate.
Research Organization:
Univ. of Houston, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0010831
Assignee:
University of Houston System (Houston, TX)
Patent Number(s):
11,447,882
Application Number:
17/047,032
OSTI ID:
1925122
Country of Publication:
United States
Language:
English

References (10)

Ternary nickel iron phosphide supported on nickel foam as a high-efficiency electrocatalyst for overall water splitting journal April 2018
An efficient bifunctional electrocatalyst for water splitting based on cobalt phosphide journal May 2016
A metal-free bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions journal April 2015
Single-atomic cobalt sites embedded in hierarchically ordered porous nitrogen-doped carbon as a superior bifunctional electrocatalyst journal November 2018
Bifunctional Nickel Phosphide Nanocatalysts Supported on Carbon Fiber Paper for Highly Efficient and Stable Overall Water Splitting journal April 2016
High-performance bifunctional porous non-noble metal phosphide catalyst for overall water splitting journal June 2018
A nanoporous metal phosphide catalyst for bifunctional water splitting journal January 2018
Selective phosphidation: an effective strategy toward CoP/CeO2 interface engineering for superior alkaline hydrogen evolution electrocatalysis journal January 2018
Earth-Rich Transition Metal Phosphide for Energy Conversion and Storage journal May 2016
Bifunctional electrocatalyst for oxygen/air electrodes journal January 2014

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY